Income-Driven Repayment Calculator United States

This income driven repayment calculator estimates your 2026 monthly federal student-loan payment from discretionary income, household size and payment rate.

Income-Driven Repayment Calculator United States
US$
Monthly payment —
Annual payment —
RAP annual base payment —
Discretionary income —
Qualifying payments before cancellation (RAP) —

We always strive to use the latest data for every variable so our results and reports are as accurate as possible. Even so, errors are possible — you should not rely on this tool or its report alone, and we accept no liability for any decision made based on it.

What it does

The Income-Driven Repayment Calculator estimates your monthly federal student-loan payment under the Repayment Assistance Plan that starts on 1 July 2026, or under income-based repayment at 10% or 15% of discretionary income.

Data sources & parameters

The figures below drive this calculator. We keep them aligned with the latest official guidance, and each result recalculates automatically whenever a value changes.

ParameterValueSourceLast updated
Federal Poverty Level, base (household of one), 48 contiguous states and the District of Columbia15,960federalregister.gov, aspe.hhs.govEffective 2026-01-01Fix 2026-10-24: the 2026 window held the 2025 guideline and the 2026 guideline was dated 2027. Published 15 January 2026, FR doc 2026-00755. Carried forward open-ended.
Federal Poverty Level, increment per additional person, 48 contiguous states and the District of Columbia5,680federalregister.gov, aspe.hhs.govEffective 2026-01-01Fix 2026-10-24: the 2026 window held the 2025 guideline and the 2026 guideline was dated 2027. Published 15 January 2026, FR doc 2026-00755. Carried forward open-ended.
Repayment Assistance Plan base payment bands: [AGI from, flat amount, rate]Rate schedulegovinfo.gov, studentaid.govEffective 2026-07-01New 2026-10-24: Higher Education Act s 455(q), inserted by Public Law 119-21, runs the Repayment Assistance Plan from 1 July 2026 on AGI bands rather than discretionary income
Repayment Assistance Plan monthly credit for each dependent50govinfo.gov, studentaid.govEffective 2026-07-01New 2026-10-24: Higher Education Act s 455(q), inserted by Public Law 119-21, runs the Repayment Assistance Plan from 1 July 2026 on AGI bands rather than discretionary income
Repayment Assistance Plan minimum monthly payment10govinfo.gov, studentaid.govEffective 2026-07-01New 2026-10-24: Higher Education Act s 455(q), inserted by Public Law 119-21, runs the Repayment Assistance Plan from 1 July 2026 on AGI bands rather than discretionary income
Repayment Assistance Plan qualifying monthly payments before cancellation360govinfo.gov, studentaid.govEffective 2026-07-01New 2026-10-24: Higher Education Act s 455(q), inserted by Public Law 119-21, runs the Repayment Assistance Plan from 1 July 2026 on AGI bands rather than discretionary income

We always strive to use the latest data for every variable so our results and reports are as accurate as possible. Even so, errors are possible — you should not rely on this tool or its report alone, and we accept no liability for any decision made based on it.

The formula

RAP monthly = max(floor, base payment on whole AGI / 12 - dependents x credit); IBR monthly = (AGI - 1.5 x federal poverty level) x plan rate / 12

How it works

For the Repayment Assistance Plan it reads an annual base payment off a band table applied to your whole adjusted gross income, divides by twelve, takes off a credit for each dependent and applies a floor. For income-based repayment it subtracts 150% of the federal poverty level for your household size from your adjusted gross income and applies the plan rate to what is left.

Where it is used

  • Estimating a payment under the Repayment Assistance Plan
  • Comparing the Repayment Assistance Plan with income-based repayment
  • Seeing how dependents and household size change the payment

Worked example

With $50,000.00 of adjusted gross income and no dependents, the Repayment Assistance Plan sets an annual base payment of …, so the monthly payment is … and the balance is cancelled after … qualifying payments.

What the income-driven repayment calculator does

The income-driven repayment calculator estimates your monthly payment on federal student loans under an income-driven plan, where the payment is tied to your income instead of being sized to clear the balance over a fixed term.

Enter your adjusted gross income, your household size and your plan’s payment rate. The calculator returns your discretionary income, an annual payment and the monthly payment.

How income-driven repayment is calculated

First the calculator finds the federal poverty level for your household size, which starts at a base figure for one person, currently $15,650, and rises by a fixed amount for each additional person.

Income-driven plans shelter 150% of the poverty level, so that amount is subtracted from your adjusted gross income; what remains is your discretionary income. If your income is below the shelter, discretionary income and the payment are both zero.

The plan’s payment rate, generally 10% for newer plans and 15% for older ones, is applied to discretionary income for the annual payment, and dividing by twelve gives the monthly payment.

Why household size matters

Each extra person raises the poverty level, and because the plan shelters 150% of it, a larger household protects more income before the rate applies. Two borrowers with the same income can have very different payments if one supports a larger family. If your household has changed, updating it with your servicer can change what you owe each month.

A worked example

Suppose your adjusted gross income is $50,000, you are a household of one, and your plan uses the 10% rate. The single-person poverty level is $15,650, and 150% of that is $23,475, leaving discretionary income of $26,525. Ten percent of that is an annual payment of $2,652.50, about $221 a month. As a household of three, the poverty level would be $26,650, the shelter larger, and the same income would give a lower monthly payment.

Plan rules are changing

The SAVE plan has been the subject of litigation, and 2025 legislation created a new Repayment Assistance Plan that changes how income-driven payments are calculated and which plans stay open to new borrowers. Payment rates, income shelters and forgiveness timelines can all change as this takes effect. This tool uses the established 150% poverty-level approach as a baseline instead of modeling every plan variant. It is a planning estimate, not a servicer quote.

Assumptions and limitations

The calculator treats discretionary income as adjusted gross income minus 150% of the federal poverty level for your household, and the payment as that amount times the rate you select. It does not model interest accrual, interest subsidies, payment caps tied to a standard plan, partial-year income changes, or forgiveness after a qualifying period. It also does not determine which plan you are eligible for or which is cheapest over the life of the loan. Confirm the exact payment and your eligibility with your loan servicer.

About This Income Driven Repayment Calculator

Use this income driven repayment calculator to get an instant, accurate estimate. The figures follow official HHS guidance and every rate and threshold is kept up to date for 2026. Adjust the inputs above to match your situation, or browse all our calculators to plan your next step.

Tax year 2026

Frequently asked questions

What is an income-driven repayment plan?
An income-driven repayment plan sets your federal student-loan payment as a share of your discretionary income instead of the amount you borrowed. Lower income or a larger household means a lower payment.
What counts as discretionary income?
For these plans, discretionary income is generally the amount by which your adjusted gross income exceeds 150% of the federal poverty level for your household size. This calculator uses that definition, so a larger household shelters more income and lowers the payment.
Should I use the 10% or 15% payment rate?
It depends on your plan and when you borrowed. Newer plans such as PAYE and the newer version of IBR use 10% of discretionary income, while older IBR uses 15%. Pick the rate for your plan.
Does household size include my spouse and children?
Household size generally includes you, your spouse and any dependents you support, subject to each plan's rules. A larger household raises the poverty level in the formula, which shelters more income and reduces the payment.
Are income-driven plan rules changing?
Yes. Federal repayment options have been in flux because of litigation over the SAVE plan and 2025 legislation that creates a new Repayment Assistance Plan. Rates, thresholds and eligibility can change, so treat any figure here as an estimate and confirm current terms with your loan servicer.
Is this calculator exact?
No. It is an estimate based on the 150% poverty formula and the rate you choose. Your servicer's payment can differ because of your specific plan, how income is documented, family size verification, and any caps or interest rules that apply.

About the author

Taha Kheirandish

Written and reviewed by

Taha Kheirandish

Economics student and independent researcher

Taha Kheirandish reads tax codes the way other people read maps — to find out where a system actually leads, not where it claims to go.

He is an economics student, and his work here is comparative by design. A pension deferral bonus in Quebec, a commuting allowance in Germany, a rent-increase ceiling in the Netherlands: each is a decision a government made about how money should move, and each reads differently once you set it beside eight others. He builds and checks these calculators across nine markets from primary sources — the regulation rather than a summary of it, the ministry’s own circular rather than a news item quoting it.

That is the editorial standard of the site as well as his habit. Every rate, threshold and bracket here carries the document it was read from and the date it takes effect, and gets re-checked when the law moves rather than when someone happens to notice.

He is a researcher, not a licensed adviser, and nothing on this site is personal financial advice. It is arithmetic done carefully with its sources shown — so that you can check it, and take it to someone who is.

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