Education

Federal student-loan repayment comparison (standard + RAP + IBR + PSLF)

Compares federal repayment options under current law (P.L. 119-21 / OBBBA): the standard 10-year amortization, the new Repayment Assistance Plan (RAP, available July 1 2026), and Income-Based Repayment (IBR), with an optional PSLF outcome. RAP is a flat % of AGI by bracket (1%–10%, less $50/mo per dependent, $10 floor) that waives unpaid interest and matches principal up to $50/mo; IBR is 10%/15% of discretionary income (AGI − 150% of the HHS poverty guideline) capped at the standard payment, forgiven at 20/25 years. Projections hold income constant. Deterministic; not financial advice (verify plan rules with your servicer).

post/v1/education/student-loan

Request

  • Base URL: https://api.numeratica.com
  • URL: https://api.numeratica.com/v1/education/student-loan
  • Auth: one of:
    • HTTP bearer
    • API key in header X-API-Key

Request body

loan_balancenumber required

Current federal loan balance.

interest_ratenumber required

Annual interest rate (e.g. 0.065).

aginumber required

Borrower's adjusted gross income.

family_sizeinteger required

Household size (IBR discretionary income).

dependentsinteger

Number of dependents (RAP −$50/mo each).

statestring

"AK"/"HI" or empty for the 48 contiguous (poverty-guideline region).

guideline_yearinteger

Poverty-guideline year (default 2026).

loan_before_2014boolean

Pre-2014 loans use 15% / 25-year IBR; 2014+ use 10% / 20-year.

standard_term_monthsinteger

Standard-plan term (default 120).

pursuing_pslfboolean

Add the 120-payment PSLF outcome.

Response

The repayment comparison

result_idstring
engine_versionstring
disclaimerstring

Example response

{
  "result_id": "studentloan_1a2b3c4d5e6f7a8b",
  "engine_version": "student-loan-1.0.0"
}

Changes

No recorded changes to this operation across all 1 revision of this API.