Reviewed September 2026.
Income-driven repayment (IDR) is the federal family of plans that set your monthly bill from income (and often family size or dependents), not from a fixed 10-year amortization alone. As of July 2026, the live picture splits:
| Track | What it is | Payment cue | Forgiveness cue |
|---|---|---|---|
| RAP (Repayment Assistance Plan) | Newer IDR; often the only IDR option if you have any Direct Loan disbursed or consolidated on/after July 1, 2026 | 1%–10% of AGI, $10 minimum, minus about $50 per eligible dependent | Remaining balance after 360 qualifying payments / about 30 years |
| IBR (and other legacy IDR still open to you) | Older discretionary-income plans for borrowers with no post–July 2026 Direct loan (and some FFEL borrowers on IBR without consolidating first) | Slice of discretionary income; some cases allow $0 | Commonly discussed as 20–25 years, plan-dependent |
| PAYE / ICR | Transitional legacy plans | Still income-tied where open | Scheduled to end for many borrowers by July 1, 2028; expect a forced switch if you stay on them |
| SAVE | Closed after a March 2026 court order | Do not newly enroll | Servicers send switch notices; pick another plan on StudentAid.gov |
Parent PLUS loans (and consolidations that include Parent PLUS) follow tighter rules and may be locked out of RAP. Confirm the live menu on StudentAid.gov. Compare fixed options in How to compare student loan repayment plans.
How does an IDR payment usually get calculated?
Older IDR plans (IBR and remaining PAYE/ICR) generally take a slice of discretionary income (income above a poverty-guideline threshold that depends on family size and the plan rules then in force). The monthly amount can be $0 in some low-income cases, and that $0 month can still count as a qualifying payment on some forgiveness tracks when rules say it does.
RAP uses adjusted gross income (AGI) bands instead of the older discretionary-income formula, keeps a $10 floor, and pairs on-time full payments with unpaid-interest treatment and (in some cases) a small principal match so the balance can still move down when the calculated bill is thin. Ask your servicer how unpaid interest is handled on the specific plan you pick.
Private student loans do not qualify for federal IDR. Refinancing federal loans into a private note ends IDR access: When should I refinance private student loans.
What must I recertify, and what happens if I miss it?
Most IDR paths require you to update income and family size on a schedule (often yearly). Miss the window and the payment can jump to a non-IDR amount, which shocks cash flow and can push you toward delinquency. Put the recertification date on a calendar the day you enroll. Irregular freelancers should keep a paper trail of AGI and family-size changes: Budgeting for irregular income.
How does IDR connect to forgiveness?
Legacy IDR paths often forgive remaining balance after about 20–25 years of qualifying payments. RAP uses a longer 30-year / 360-payment clock. Public Service Loan Forgiveness (PSLF) is a separate employment-based track that still usually needs a qualifying monthly payment (IDR/RAP or another qualifying plan). Program types overview: How to qualify for student loan forgiveness programs. Tax treatment of forgiven balances can change; see IRS guidance and Filing taxes for beginners for filing workflow, not a tax opinion.
When does IDR help vs when does it cost more?
| IDR often helps | IDR often costs more interest |
|---|---|
| Payment on standard would break rent or groceries | You could afford standard and want the shortest payoff |
| You need documented qualifying months toward forgiveness | You will never use forgiveness and hate long amortization |
| Income is temporarily low after a layoff or school exit | You skip recertification and get a surprise spike |
IDR and RAP are hardship and forgiveness tools, not a free rate cut. Interest can still accrue; unpaid interest and principal-match rules differ by plan (RAP’s on-time-payment interest treatment is different from older IBR).
Worked cash-flow example
Alex leaves school with $40,000 Direct loans. Standard 10-year payment is about $440/month (illustrative). First-year take-home supports only $250 for education debt after rent. An IDR estimate shows $95/month on current income. Alex chooses IDR, automates the $95, and calendars recertification for next April. If Alex’s income doubles in three years and forgiveness is irrelevant, Alex can switch toward standard or pay extra principal while staying in good standing: Paying off student loans basics.
What checklist should I run before applying?
- List every federal loan on StudentAid.gov (exclude private).
- Note current plan name and monthly bill.
- Run the official IDR estimator; save the screenshot.
- Ask how unpaid interest is handled on the specific plan you pick.
- Never pay a cold caller to “unlock IDR”: Fake student loan forgiveness scams.
Educational only. Not counseling, tax, or legal advice. IDR plan names and formulas change; verify on StudentAid.gov and with your servicer.