Student Loan Affordability Calculator

Check if your student debt is affordable relative to expected salary. Uses the 8% rule.

By Konstantin Iakovlev · Updated September 2026 · Source: College Board — Trends in Student Aid 2025

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$
%
Repayment Plan

Monthly Payment

$305.27

Payment % of Income

6.7%

Affordable?

Yes

8% rule

Your loan payment is within the recommended 8% of gross income.

Loan Details

Monthly Payment (15-year term)$305.27
Total Interest Over 15 Years$19,949.05
Total Amount Paid$54,949.05
Payment as % of Gross Income6.7%

Affordability Benchmarks

Max Affordable Debt at Your Salary$42,038.94
Salary Needed for Your Debt$45,790.88
Affordable Monthly Payment (8%)$366.67

Tiered Standard Plan terms by balance: under $25,000, 10 years; $25,000 to $49,999, 15 years; $50,000 to $99,999, 20 years; $100,000 or more, 25 years.

Use the Student Loan Affordability Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.

How It Works

Whether a loan payment fits your life comes down to the salary you'll actually earn after graduation, not the degree you imagine paying for it. About half of bachelor's graduates borrow, and those who do leave school owing $29,560 on average (College Board, class of 2023-24), so weighing affordability ahead of time is one of the clearest ways to protect your long-term financial footing. Running the numbers early gives you space to adjust borrowing before the bills arrive.

The estimate here leans on the widely used '8% Rule,' which holds that total student loan payments should stay at or below 8% of gross monthly income. The tool takes your expected annual salary, divides it by 12 to find monthly income, and multiplies that by 0.08 to surface the largest payment you could comfortably carry. The result is a fast read on whether your anticipated payments land inside a workable range. The payment uses the term your loans would actually get: Direct Loans first disbursed on or after July 1, 2026 are repaid under the Tiered Standard Plan, whose fixed term depends on the balance, 10 years under $25,000, 15 years from $25,000, 20 years from $50,000 and 25 years from $100,000. A switch prices older loans on the 10-year Standard Plan instead; the longer terms lower the payment and raise the total interest.

Treat the output as a starting benchmark rather than a verdict, since other debts and everyday living costs shift the real picture. People tend to lowball future expenses and inflate starting pay, so keep your inputs grounded in realistic figures. What you get here is a snapshot, not a full financial plan, and a conversation with a financial advisor remains worthwhile.

Example: Aspiring Software Engineer with $50,000 in Student Loans

  1. 1 You anticipate a starting annual salary of $80,000 as a software engineer and will owe $50,000 at 5% on loans taken out after July 1, 2026. The Tiered Standard Plan gives a $50,000 balance 20 years, so the calculator spreads it over 240 months: $329.98 a month.
  2. 2 Your projected monthly gross income is $80,000 / 12 = $6,666.67. According to the 8% rule, your maximum affordable monthly student loan payment is $6,666.67 * 0.08 = $533.33.
  3. 3 The $329.98 payment is 4.9% of gross monthly income, well under the $533.33 limit, so the loans count as affordable; interest over the 20 years comes to $29,194.69. The most you could owe and stay within 8% is $80,813.50, the largest balance that still repays over 20 years at this rate.
  4. 4 On the old 10-year Standard Plan, which loans disbursed before July 1, 2026 can still use, the same $50,000 costs $530.33 a month, 8.0% of income, with $13,639.31 of interest. Either way, factor in rent, utilities and transportation when you build the full budget.

Source: College Board — Trends in Student Aid 2025 · Last updated: September 2026

Frequently Asked Questions

How much student debt is too much?
The general rule is your total student loan debt should not exceed your expected first-year salary. If your expected starting salary is $55,000, keep total borrowing under $55,000. Monthly payments should stay below 8-10% of gross monthly income to remain manageable.
What is the average student loan payment in 2026?
It depends on the balance, the rate and the repayment plan. Bachelor's graduates who borrowed left school owing $29,560 on average in 2023-24 (College Board, Trends in Student Aid 2025); 47% borrowed at all. For loans made from July 1, 2026, $29,560 falls in the Tiered Standard Plan's 15-year band: at 6.52%, the 2026-27 undergraduate Direct Loan rate, that is $257.82 a month in this calculator, or $335.95 on the 10-year Standard Plan that older loans can still use.
Should I take out student loans or work during school?
A moderate approach works best: borrow only what you need for tuition and fees, and work part-time for living expenses. Federal subsidized loans (no interest while in school) are the best option. Avoid private loans with variable rates when possible.