Student Loan Refinance Calculator

Student Loan Refinance Calculator Guide: Compare Rates, Terms, Payments, Interest, and Federal Benefits

Student-loan refinancing replaces one or more existing loans with a new private loan. The old loans are paid off, and the borrower begins repaying the new lender under a new interest rate, term, payment schedule, and set of contractual protections.

That makes refinancing fundamentally different from making extra payments on an existing loan. It is also different from federal Direct Consolidation. Federal Student Aid states that federal loans cannot be refinanced within the federal student-aid system. Eligible federal loans can instead be combined through Direct Consolidation, while refinancing through a private lender removes the refinanced federal debt from the federal system.

The refinance decision therefore has two layers. The first is mathematical: does the new private loan reduce borrowing cost? The second is structural: what rights or protections disappear when the old loans are replaced?

For private loans, the decision is primarily a comparison of financing terms. A borrower with strong credit or improved income may qualify for a lower rate than when the original loan was issued. A lower rate can reduce interest, monthly payment, or both depending on the new term.

For federal loans, the analysis is more consequential. CFPB states that refinancing federal student debt with a private lender causes the borrower to lose federal repayment options and protections. These can include income-driven repayment, federal deferment and forbearance rights, certain discharge protections, and access to qualifying federal forgiveness programs such as Public Service Loan Forgiveness.

That loss is not temporary. Once a private lender pays off the federal loans, the resulting private loan cannot simply be converted back into the original federal loans later because the borrower’s financial circumstances changed.

This is why refinance savings should never be calculated from interest rate alone. Suppose a borrower refinances from 8% to 6%. That appears favorable. But if the borrower also resets five remaining years of repayment into a new 15-year loan, the monthly payment can fall dramatically while total lifetime interest increases.

The correct comparison preserves the existing loan path. How many payments remain today? What interest would be paid if no refinance occurs? When would the borrower become debt-free? Those numbers form the baseline.

The proposed refinance is then modeled independently using the new principal, APR, fees, repayment term, and rate structure. The difference between the two paths reveals whether the refinance creates genuine savings or merely redistributes payments over more years.

Multiple existing loans should also be handled carefully. A weighted average rate can summarize the current portfolio, but the strongest calculation models each loan separately because balances, rates, and remaining terms can differ.

Finally, fixed and variable private refinancing should not be treated as equivalent. CFPB warns that refinancing fixed federal loans into variable private loans can expose borrowers to future rate increases. A variable refinance can begin cheaper and later become more expensive than the debt it replaced.

The purpose of this calculator is therefore not to answer whether refinancing is universally good or bad. It shows what the borrower gains financially, what repayment period changes, and—where federal debt is involved—what federal protections are permanently surrendered.

How to Compare Your Current Student Loans With a Private Refinance Offer

List every loan you are considering refinancing: Enter each current balance, interest rate, monthly payment, and remaining term separately when possible.
Identify each loan as federal or private: This is essential. Refinancing a private loan changes financing terms; refinancing a federal loan privately also permanently removes federal protections.
Enter the current payoff balance: Use the amount that would actually need to be paid to satisfy the existing loans rather than the original amount borrowed.
Enter the proposed refinance rate: Use the actual offered rate when available rather than the lender’s lowest advertised rate.
Specify fixed or variable: A variable-rate refinance should include rate stress scenarios instead of assuming the introductory rate remains unchanged.
Enter the new repayment term: Compare it with the number of years remaining on the current loans. A longer refinance term can lower payment without lowering lifetime cost.
Enter any refinance fees: Include applicable origination or other borrowing charges instead of comparing interest rates alone.
Compare monthly payment change separately: Cash-flow improvement is useful, but it is not the same as total-interest savings.
Compare the new debt-free date: A refinance that adds five or ten years of repayment should make that extension visible.
Review federal benefits before including federal loans: If federal debt is selected, review IDR, PSLF, deferment, forbearance, discharge, and other federal protections before calculating the refinance as a simple rate trade.

Formula and variables

The calculator first projects the remaining payment and interest path of each current loan. It then models the proposed refinance from the payoff principal, new rate, term, and fees. Monthly-payment savings are shown separately from total-cost savings so a longer term cannot masquerade as a cheaper loan.

Net refinance benefit = Remaining cost of current loans − (New refinance interest + refinance fees)

Bᵢ — Current loan balance: The outstanding principal on each student loan being considered for refinancing.
APRᵢ — Current loan rate: The current fixed or variable interest rate applying to each existing loan.
Tᵢ — Remaining current term: The number of payments or years remaining under each current repayment path.
WAPR — Weighted current rate: A balance-weighted summary of current rates used for orientation rather than as a substitute for loan-by-loan modeling.
NP — New refinance principal: The amount the new private lender finances to satisfy the loans being refinanced.
NR — New refinance rate: The fixed rate or starting variable rate applying to the proposed refinance.
NT — New refinance term: The repayment period of the new private loan.
F — Refinance fees: Any origination or other costs associated with establishing the new loan when applicable.
S — Modeled refinance savings: The difference between remaining cost under the current loans and modeled cost of the refinance.

Scenario 1: Lower Rate Saves Money When the Borrower Does Not Reset the Term

A borrower has $40,000 of private student loans at an average modeled rate of 8.0% with seven years remaining. A private lender offers to refinance the full balance at 5.75% for the same seven-year remaining horizon, with no modeled refinance fee.

Current balance: $40,000
Current modeled rate: 8.0%
Remaining term: 7 years
New refinance rate: 5.75%
New term: 7 years
Modeled refinance fees: $0

A $40,000 balance amortized for seven remaining years at 8.0% produces a modeled payment of approximately $623 per month.
Remaining scheduled interest is approximately $12,300.
Refinancing the same $40,000 over the same seven-year horizon at 5.75% produces a modeled payment of approximately $579 per month.
Modeled interest under the refinance is approximately $8,600.
The monthly payment falls by roughly $44.
The modeled lifetime interest saving is approximately $3,700 because the borrower reduced the interest rate without extending the repayment horizon.

Result: The refinance lowers both the monthly payment and modeled lifetime interest while preserving approximately the same debt-free date.

This is the clearest refinance case. The benefit comes primarily from a lower borrowing rate rather than from postponing repayment.

Understanding your results

Current weighted rate

This summarizes the interest-rate profile of the loans being refinanced according to their balances.

Use it for orientation, but calculate remaining cost loan by loan whenever rates and terms differ.

New refinance payment

This is the modeled required payment under the proposed private loan.

A lower number can come from a lower rate, longer term, or both.

Monthly payment savings

This measures immediate cash-flow improvement.

It should never be displayed without the new payoff date and total-interest comparison.

Remaining current-loan interest

This estimates the interest the borrower would pay by keeping the existing loans until their scheduled payoff.

It forms the correct baseline for refinance savings.

Refinance interest

This is the modeled interest paid under the proposed replacement loan.

Add applicable fees before comparing it with the existing path.

Net refinance savings

This compares remaining current-loan cost with the modeled cost of the refinance.

Federal benefit loss is shown separately because it cannot be reduced honestly to one guaranteed dollar amount for every borrower.

Assumptions

Current loan balances and repayment terms are entered accurately.
The proposed refinance lender approves the entered principal, rate, and term.
Fixed-rate refinance scenarios retain the same rate through payoff.
Variable-rate scenarios follow the selected rate assumptions.
No missed payments or late fees occur.
Applicable refinance fees are entered separately.
The borrower does not add new student-loan debt to the refinance after closing.
Federal loans refinanced privately permanently leave the federal student-loan system.
No federal forgiveness is assumed unless explicitly modeled as a comparison scenario.
The calculator provides financial estimates rather than a lender underwriting decision.

Limitations

Private refinance offers depend on credit history, income, debt, employment, cosigner strength, loan balance, lender underwriting, and market conditions.
The lowest advertised refinance rate may not be the rate offered to a particular borrower.
Private lenders can offer fixed or variable rates. Future variable rates cannot be predicted precisely.
Refinancing federal loans privately permanently removes the refinanced debt from the federal student-aid system.
CFPB states that borrowers who refinance federal loans privately lose federal repayment rights and protections, including access to income-driven repayment and qualifying federal forgiveness programs.
Federal Student Aid states that federal loans cannot be refinanced within the federal system. Direct Consolidation is a different federal transaction.
The calculator cannot assign a universal dollar value to federal protections such as IDR, PSLF, deferment, forbearance, death discharge, disability discharge, or other federal programs.
The value of federal protections depends on future income, employment, health, career, family circumstances, legislation, and repayment behavior.
Existing private loans can contain borrower benefits such as cosigner release, hardship options, or rate discounts that may disappear after refinance.
A refinance can affect eligibility for the student-loan interest deduction depending on how the new debt is structured and used. Tax treatment should be verified separately.
Term extensions can lower the monthly payment while increasing total lifetime interest.
Shorter refinance terms can offer lower rates but create payments that are difficult to sustain.
Refinancing does not reduce principal unless the lender or borrower separately contributes money toward payoff.

Common mistakes

Comparing only the old interest rate with the new rate.
Comparing the new payment without comparing the new payoff date.
Resetting five remaining years into a new 15-year loan and calling the lower payment savings.
Using the lender’s advertised minimum rate instead of the actual offered rate.
Ignoring variable-rate risk.
Refinancing federal loans without understanding that federal benefits are permanently lost.
Confusing federal Direct Consolidation with private refinancing.
Assuming federal loans can be refinanced back into the federal system later.
Ignoring PSLF progress before refinancing federal loans.
Ignoring current or potential IDR eligibility.
Ignoring federal disability or death discharge protections.
Ignoring private-loan cosigner release options already available on the existing loan.
Adding a cosigner only to obtain a lower rate without considering the cosigner’s legal obligation.
Refinancing repeatedly without comparing the full remaining cost each time.

Practical use cases

Scenario 2: Lower payment comes entirely from extending the term

A borrower has five years remaining and refinances into a new 15-year loan at only a slightly lower interest rate.

The monthly payment drops dramatically, but the borrower makes payments for ten additional years. Total interest can increase even though the payment appears much more affordable.

Scenario 3: Shorter refinance term accelerates payoff

A borrower qualifies for a substantially lower rate and chooses a five-year term instead of the eight years remaining on the old loans.

The monthly payment can increase while total interest and payoff time fall. Refinancing can therefore be useful even when it does not reduce monthly cash flow.

Scenario 4: Variable refinance starts below the fixed current rate

A variable refinance begins two percentage points below the borrower’s current fixed loans.

The calculator should show the initial saving plus higher-rate stress scenarios so the borrower can see what happens if the variable rate later rises above the original rate.

Scenario 5: Federal borrower pursuing PSLF

A public-service employee qualifies for a materially lower private refinance rate.

Refinancing the federal loans would remove them from PSLF eligibility. The interest-rate saving must therefore be compared with the potential value of federal forgiveness rather than treated as automatic improvement.

Scenario 6: Existing private borrower adds a cosigner

A borrower with private loans receives a better refinance offer by adding a creditworthy cosigner.

The calculator can show the lower interest cost, but the cosigner is becoming legally responsible for the new debt and should not be treated merely as a rate-reduction input.

Planning and decision guide

Refinancing replaces the loan rather than modifying it

The new private lender pays off the selected existing loans and creates a new private obligation.

The relevant baseline is therefore the future cost of the loans being replaced, not their original borrowing cost.

Scenario 7: Ignore interest already paid

The borrower originally took a 10-year loan but has already made four years of payments.

Refinance analysis should compare the six years remaining today with the proposed new loan. Interest already paid is a sunk cost and should not be counted as future refinance savings.

Current payoff balance is more important than original principal

A loan originally issued for $50,000 may now have only $32,000 outstanding.

The refinance lender is replacing the current payoff amount, so the new transaction should be modeled from today’s balance.

Weighted rate is useful but incomplete

When several loans are being refinanced, a balance-weighted rate gives a useful summary of the current portfolio.

But loans with different remaining terms should still be modeled individually because equal weighted rates can produce different future interest costs.

Scenario 8: Same weighted rate, different loan terms

Two borrowers each have an 8% weighted portfolio.

One has three years remaining while the other has ten. Their remaining interest exposure is very different even though the summary rate is identical.

Lower rate with the same remaining term is the cleanest savings comparison

Keeping the payoff horizon approximately constant isolates the interest-rate improvement.

If both payment and total interest decline, the refinance advantage is being created by financing cost rather than delayed repayment.

Scenario 9: Seven years remaining becomes seven-year refinance

The borrower cuts the rate from 8% to 6% while preserving the payoff horizon.

The payment and total interest both decline, creating a straightforward financial benefit before considering borrower-protection differences.

Term reset can manufacture a lower payment

CFPB warns that refinancing into a longer term can lower monthly payment while increasing the amount of interest paid over the life of the loan.

Always display the new debt-free date beside the new payment.

Scenario 10: Four years remaining becomes ten years

The refinance payment falls sharply.

The borrower should see clearly that six additional years of scheduled debt created most of the payment reduction.

A shorter refinance term can increase payment while improving the economics

The lowest total-cost option does not always have the lowest monthly payment.

A borrower with strong cash flow can use a lower refinance rate together with a shorter term to accelerate debt freedom.

Scenario 11: Payment rises $90 but debt ends three years earlier

The refinance is not a cash-flow strategy.

It is an interest and payoff optimization strategy. The calculator should label the result accordingly rather than treating the higher payment as a failure.

Federal Direct Consolidation is not refinancing

Federal Student Aid states that federal loans cannot be refinanced within the federal student-aid system.

Direct Consolidation combines eligible federal loans into a new federal loan instead.

Scenario 12: Borrower wants one federal payment

The borrower does not necessarily need private refinancing.

Federal consolidation may combine eligible loans while retaining federal status, though it has its own rate, capitalization, repayment-plan, and qualifying-payment consequences.

Private refinancing of federal loans is irreversible

CFPB states that refinancing federal loans with a private lender causes the borrower to lose federal rights and protections and that this type of consolidation cannot be reversed.

The calculator should require an explicit federal-benefit warning before displaying federal-loan refinance savings as the primary result.

Scenario 13: Lower private rate today, income loss next year

The borrower refinances federal loans based on strong current employment.

A future job loss creates payment stress, but the private loan no longer has access to federal IDR. The rate saving was real, but so was the value of the surrendered flexibility.

Federal IDR has option value even when current payment is high

A borrower may not currently need income-driven repayment.

The ability to access an eligible federal IDR plan later can still have economic value if income falls or household circumstances change.

Use the Income-Driven Repayment Calculator before refinancing federal loans

Compare what current federal repayment options would require before replacing the loans privately.

The Income-Driven Repayment Calculator provides the current 2026 RAP and legacy-plan comparison where eligible.

Scenario 14: Private refinance versus RAP

The new private loan offers a lower nominal rate than the federal loans.

RAP produces a lower required payment and federal interest protections under the borrower’s current circumstances. The borrower is comparing different repayment systems, not merely two APRs.

PSLF can dominate ordinary interest savings

CFPB specifically warns that refinancing federal loans privately eliminates eligibility for federal forgiveness programs such as Public Service Loan Forgiveness.

For a borrower already accumulating qualifying PSLF payments, the value of remaining forgiveness can be substantially larger than private interest savings.

Scenario 15: Eight years into PSLF

A qualifying public-service borrower has already completed a large portion of the required payment history.

Refinancing privately in exchange for a lower interest rate would destroy the federal forgiveness path for the refinanced loans.

Federal discharge protections can also be lost

CFPB notes that federal loans can provide discharge or forgiveness protections in circumstances such as qualifying total and permanent disability or death.

Private lenders can offer some protections, but their terms are lender-specific and should not be assumed equivalent.

Scenario 16: Private lender offers disability protection with different terms

The refinance lender advertises a disability benefit.

The borrower should compare the contractual eligibility and discharge provisions directly rather than assuming the private benefit duplicates federal law.

Fixed federal debt should be compared carefully with variable private debt

CFPB warns that moving from fixed federal loans into variable private refinancing creates the possibility that the new rate and payment will increase in the future.

The initial refinance rate therefore should not be projected unchanged unless the offer is actually fixed.

Scenario 17: 5% variable rate rises to 9%

The borrower originally refinances an 8% fixed loan into a 5% variable loan.

If the rate later reaches 9%, part of the expected savings disappears and the new rate exceeds the original debt cost.

Variable-rate scenarios should include at least three paths

A useful calculator can show starting-rate, moderate-increase, and high-rate stress scenarios.

That is more informative than pretending the variable rate is a fixed forecast.

Fixed refinance rates trade flexibility for certainty

A fixed refinance rate makes payment and interest modeling much more predictable.

It can still be better or worse than the current loans depending on the rate and term.

Private refinancing can be attractive for existing private loans

Private student loans do not carry the same federal IDR and forgiveness system that federal loans do.

For a strong-credit borrower, replacing a high-rate private loan with a lower-rate private loan can therefore be a more straightforward financing decision.

Scenario 18: Private 11% loan refinanced to fixed 6%

No federal protections are being surrendered because the existing debt is already private.

The central questions become rate, term, fees, lender protections, and borrower or cosigner obligations.

Improved credit can create refinance opportunities

A borrower may have taken the original private student loan with limited income or thin credit history.

After several years of employment and repayment, stronger credit can support a materially better offer.

Scenario 19: Refinance after income and credit improve

The borrower’s credit profile is substantially stronger than when the private loan originated.

The new lender offers a lower fixed rate without extending the remaining payoff horizon, creating a clearer cost advantage.

Adding a cosigner can lower pricing but transfers legal risk

A cosigner becomes legally responsible for the refinanced debt according to the new contract.

The rate benefit should therefore be considered together with the financial exposure imposed on that person.

Scenario 20: Parent cosigns adult child refinance

The new rate falls materially because of the parent’s credit.

The parent now shares responsibility for the private loan if the borrower cannot pay.

Existing cosigner release can be an alternative to refinancing

CFPB notes that private borrowers may be able to seek cosigner release under their existing lender’s rules.

A borrower whose primary goal is removing a cosigner should investigate that option before refinancing solely for that purpose.

Scenario 21: Existing lender offers cosigner release after qualifying payments

The borrower is about to refinance only to remove the cosigner.

If the existing lender already permits release without replacing the loan, the borrower can compare that option against refinancing before changing the rate and contract.

Refinance fees belong in break-even analysis

If a private refinance offer charges an origination or other upfront fee, the interest savings must first recover that cost.

A slightly lower rate on a nearly paid-off loan may not create enough remaining interest savings to justify significant fees.

Scenario 22: $700 fee, $1,000 projected interest saving

The gross interest difference looks favorable.

After the $700 fee, only $300 of modeled net savings remains before considering any other contractual differences.

Break-even time matters when the borrower expects early payoff

A refinance can reduce monthly interest but require upfront cost.

If the borrower plans to repay the loan aggressively within a year, there may not be enough time to recover the fee.

Scenario 23: Refinance break-even is 18 months, planned payoff is 12 months

The borrower expects to eliminate the loan before the refinance recovers its transaction cost.

Keeping the current loan and making extra payments can be economically stronger.

Use the Student Loan Calculator as the keep-current-loans benchmark

The refinance page should not invent the cost of keeping the loans.

Use the Student Loan Calculator to verify remaining payment and interest assumptions for fixed repayment.

Extra payment can outperform refinancing when little time remains

A borrower with a relatively small balance and only two years remaining may have limited future interest left to save.

Increasing payments on the existing loan can sometimes produce greater value than replacing the debt with a new contract.

Scenario 24: $8,000 balance with 18 months remaining

The refinance rate is lower, but only a modest amount of interest remains under the current loan.

The borrower should compare the small potential refinance saving with simply increasing the monthly payment and finishing the existing loan sooner.

Refinancing Parent PLUS requires parent-specific analysis

Parent PLUS is federal debt legally owed by the parent.

Private refinancing can reduce its rate but also removes the remaining federal Parent PLUS protections.

Use the Parent PLUS Loan Calculator before refinancing parent debt

Establish the parent’s current federal payment, interest, payoff horizon, and retirement exposure first.

Then compare those results with the proposed private refinance.

Scenario 25: Parent refinance lowers rate but extends into retirement

The refinance payment falls because the term is extended.

The parent remains in debt several additional retirement years. Lower current payment does not necessarily improve long-term retirement security.

Refinancing several loans can simplify administration without guaranteeing savings

One new lender and one monthly payment can be easier to manage.

Convenience has value, but it should be separated from rate and total-cost savings.

Scenario 26: Five private loans become one

The refinance rate is nearly identical to the weighted current rate.

The principal benefit is administrative simplicity rather than meaningful interest savings.

Partial refinancing can preserve some federal protections

A borrower does not necessarily have to refinance every loan.

High-rate private loans can be refinanced while eligible federal loans remain inside the federal system.

Scenario 27: Refinance private loans, retain federal loans

The borrower has both 11% private loans and 6% federal loans.

Only the expensive private debt is refinanced. Federal debt remains eligible for applicable federal repayment and forgiveness protections.

Partial refinance can also target only the highest-rate private loans

When existing private loans have very different rates, refinancing every balance into one blended new rate can unnecessarily replace inexpensive debt.

Compare loan-by-loan rather than assuming all current debt belongs in one refinance.

Scenario 28: Do not refinance a 4% private loan into 6%

The borrower has one 10% private loan and one 4% private loan.

A 6% refinance is attractive for the 10% debt but worsens the 4% loan. Partial refinancing can preserve the cheaper existing financing.

Rate-shopping should compare the same term

A five-year offer at 5.5% and a 15-year offer at 6.0% should not be compared from payment alone.

Normalize the term or compare lifetime costs so the lender with the longer schedule does not appear artificially cheaper.

Scenario 29: Lender A wins on rate, Lender B wins on payment

Lender B offers the smaller monthly payment only because the term is twice as long.

The calculator should expose the total repayment and debt-free date before ranking either offer.

The new loan should be stress-tested against income changes

Federal borrowers can sometimes adapt payments through federal programs when income falls.

A private refinance generally depends on the private lender’s own hardship provisions, which can be narrower.

Scenario 30: Private payment remains fixed after job loss

The borrower chose a refinance based on a high current salary.

Income later falls substantially. The private payment remains contractually due unless the lender offers its own relief.

Do not value federal benefits at zero simply because they are unused today

Insurance has value before the insured event occurs.

Federal repayment flexibility can similarly have option value even when the borrower currently expects never to use it.

The strongest refinance result has two separate verdicts

Financial result: payment change, interest change, term change, and modeled savings.

Structural result: federal benefits lost, fixed-versus-variable risk, cosigner changes, and lender-specific protections.

Frequently asked questions

What is student loan refinancing?

Refinancing replaces one or more existing student loans with a new private loan carrying new interest-rate, term, payment, and contractual conditions.

Can federal student loans be refinanced?

They can be refinanced through a private lender, but Federal Student Aid states that federal loans cannot be refinanced within the federal student-aid system. Private refinancing removes those loans from the federal system.

Is federal consolidation the same as refinancing?

No. Direct Consolidation combines eligible federal loans into a new federal loan. Private refinancing replaces existing debt with private credit.

What happens if I refinance federal student loans privately?

You lose the refinanced loans’ federal status and federal repayment and forgiveness protections. CFPB warns that this decision cannot simply be reversed later.

Will I lose income-driven repayment if I refinance federal loans?

Yes for the refinanced debt. Private student loans are not eligible for federal income-driven repayment.

Will I lose RAP if I refinance federal student loans?

Yes. RAP is a federal repayment plan for eligible federal loans. Debt refinanced privately is no longer eligible.

Will I lose PSLF if I refinance federal student loans?

Yes for those refinanced loans. CFPB has specifically warned that private refinancing of federal loans eliminates access to federal forgiveness programs such as PSLF.

Can I refinance federal loans back into federal loans later?

No. Once a private refinance lender pays off the federal loans, the resulting private debt cannot simply be converted back into the original federal loans.

Can I refinance private student loans?

Yes, subject to private lender approval. This can be attractive when the new rate and terms are materially better than the current private loans.

How much can refinancing save?

Compare the interest remaining under your current loans with interest and fees under the proposed refinance. Savings depend on balance, rate reduction, and whether the repayment term changes.

Does a lower refinance rate always save money?

No. Extending the term can produce more total interest even when the new rate is lower.

Why is my refinance payment much lower?

It can be lower because of a reduced rate, a longer repayment term, or both. Compare the new debt-free date before calling the difference savings.

Should I refinance into a longer term?

A longer term can improve cash flow but usually keeps debt outstanding longer. Compare total interest and payoff date with the current path.

Should I choose a shorter refinance term?

A shorter term can reduce interest and accelerate payoff but requires a larger monthly payment. Use a term that remains sustainable.

What is the weighted average student-loan rate?

It is the average rate across several loans weighted by each loan’s outstanding balance.

How do I calculate weighted student-loan interest rate?

Multiply each balance by its rate, add the results, and divide by the total balance. Use it as a portfolio summary, not a replacement for individual loan modeling.

Should my refinance rate be lower than my weighted current rate?

A lower new rate is generally favorable, but term changes and fees can still make the refinance more expensive overall.

Should I refinance all my loans?

Not necessarily. Partial refinancing can preserve low-rate loans or federal protections while replacing only expensive private debt.

Can I refinance only private loans and keep federal loans?

Yes if the refinance lender permits it. This can preserve applicable federal protections while lowering rates on expensive private debt.

Should I refinance a low-rate existing loan?

Usually only if the complete new loan terms improve your position. Do not replace inexpensive debt with a higher rate merely for convenience.

Should I refinance federal loans if I qualify for PSLF?

Use extreme caution. Refinancing privately eliminates PSLF eligibility for the refinanced loans, so potential forgiveness should be compared with any rate savings.

Should I refinance federal loans if I use IDR?

Refinancing privately eliminates federal IDR eligibility. Compare your current plan using the Income-Driven Repayment Calculator first.

Should I refinance federal loans if my income is high?

A strong income can make private refinancing financially attractive, but future income is uncertain. Evaluate federal protections before assuming they have no value.

Is a fixed refinance rate better than variable?

Fixed rates provide payment certainty. Variable rates can begin lower but can increase later. The better choice depends on pricing, payoff horizon, and risk tolerance.

Can a variable refinance rate become higher than my current rate?

Yes. CFPB warns that borrowers refinancing fixed federal loans into variable private loans can face higher future rates and payments.

How should I model a variable refinance?

Run the starting rate plus moderate and higher-rate scenarios rather than treating the initial rate as guaranteed for the entire term.

Do student-loan refinance companies charge fees?

Fee structures vary by lender. Enter any origination or other borrowing cost contained in the actual offer rather than assuming every refinance is free.

What is student-loan refinance break-even?

It is the point when cumulative interest savings exceed any upfront refinance costs.

Should I refinance if I plan to pay the loan off soon?

Maybe not. When little interest remains, the potential saving can be too small to justify transaction costs or changing lenders.

Can refinancing help me pay student loans off faster?

Yes if the new rate is lower and you maintain or increase your payment, or if you deliberately choose a shorter term.

Can refinancing lower my payment?

Yes through a lower rate, a longer term, or both. Identify which factor is responsible.

Can refinancing increase my payment?

Yes. A shorter refinance term can increase the monthly payment while reducing total interest and payoff time.

Can I refinance with a cosigner?

Some private lenders allow it. A cosigner becomes legally responsible under the new loan contract.

Can I remove a cosigner by refinancing?

Potentially, if you qualify independently. Also check whether your existing private lender offers cosigner release without refinancing.

What is cosigner release?

It is a lender process that removes an eligible cosigner from an existing private student loan after specified requirements are met.

Should I refinance Parent PLUS?

Private refinancing can reduce the rate but removes federal Parent PLUS status and protections. Model the current federal debt first with the Parent PLUS Loan Calculator.

Can Parent PLUS be refinanced into the student’s name?

Some private lenders may offer refinancing into the student’s name if the student qualifies, but that is a private transaction rather than a federal transfer.

Does refinancing affect student-loan tax deductions?

It can depending on how the new loan is structured and used. CFPB recommends considering tax consequences, especially when student and non-student debt are combined.

Can servicemembers lose protections by refinancing?

Potentially. CFPB warns that refinancing can affect protections connected to qualifying pre-service debt under the Servicemembers Civil Relief Act.

Should I refinance during a period of financial hardship?

Evaluate carefully. A new private loan can offer different hardship options from federal debt or an existing private lender, and those protections are contract-specific.

Should I consolidate federal loans instead of refinancing them privately?

They serve different purposes. Federal consolidation preserves federal status while private refinancing can change the rate but permanently removes federal protections.

How does this calculator differ from the Student Loan Calculator?

The Student Loan Calculator models repayment of the loans you already have. This calculator compares that existing path with replacing the debt through a new private loan.

How accurate is a student loan refinance calculator?

It can provide a strong financial comparison when current balances, rates, remaining terms, new offer terms, and fees are accurate. It cannot assign a guaranteed dollar value to federal protections or predict future variable rates.

Sources and review

Financial Aid Dictionary: What is refinancing for student loans? — Federal Student Aid. Accessed 2026-08-31.
5 Things to Know Before Consolidating Federal Student Loans — Federal Student Aid. Accessed 2026-08-31.
Compare Student Loan Repayment Plans With Our Student Loan Calculator — Federal Student Aid. Accessed 2026-08-31.
Should I consolidate or refinance my student loans? — Consumer Financial Protection Bureau. Accessed 2026-08-31.
Should I refinance my student loan? — Consumer Financial Protection Bureau. Accessed 2026-08-31.
Options for repaying your federal and private student loans — Consumer Financial Protection Bureau. Accessed 2026-08-31.
Supervisory Highlights: Special Edition Student Lending — Consumer Financial Protection Bureau. Accessed 2026-08-31.

Reviewed 2026-08-31 by Dr Akawak Ejigu, DBA.

Current loans and refinance offer