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Student LoansBeginner4 min read

The StudentAid.gov Loan Simulator: modeling your options for free

The government's own free tool models every repayment plan against your real loans. It is the same engine paid companies quietly use.

Most student loan decisions come down to comparing options, and there is a free government tool that does exactly that: the Loan Simulator at studentaid.gov. It pulls your actual loans, applies current rules, and shows every repayment plan side by side with real numbers. It is the single most useful resource in student lending, and it is the same engine that paid relief companies quietly run before charging you for the answer.

What the Loan Simulator does

  • Imports your real federal loans, balances, and rates when you log in.
  • Projects your monthly payment under every repayment plan you qualify for, side by side.
  • Estimates your total cost and, where relevant, your forgiveness timeline under each plan.
  • Lets you model scenarios: a new job, a raise, marriage, a change in family size, or pursuing forgiveness.

The questions it answers in minutes

Which IDR plan gives me the lowest payment? What would I pay if my income rises next year? How much sooner would extra payments retire the loan? Is standard or income-driven cheaper in total for my situation? These are exactly the questions borrowers pay hundreds of dollars to have answered, and the Simulator answers them with your real data in about twenty minutes.

It is the paid companies' secret
There is no repayment plan, forgiveness estimate, or scenario a paid company can model that the free Loan Simulator cannot. Companies that charge to tell you which plan to choose are selling you output from this exact tool.

How to use it well

  1. Log in with your FSA ID so it uses your real loans rather than estimates.
  2. Identify your goal first — lowest payment, fastest payoff, or forgiveness — because it changes which number you are optimizing.
  3. Compare not just the monthly payment but the total cost and forgiveness timeline of each plan.
  4. Re-run it whenever your income or family situation changes, since the right plan can shift.
Spend one honest hour in the Loan Simulator before making any repayment decision. If the answer is obvious, execute it yourself for free. Only escalate to a paid, credentialed advisor for genuinely complex, high-stakes situations the tool cannot fully resolve.

The bottom line

The Loan Simulator is a free government tool that models every repayment plan against your real loans, answers the questions borrowers pay hundreds for, and lets you test scenarios before you commit. Log in with your real data, define your goal, compare total cost and forgiveness timelines rather than just the monthly payment, and re-run it as life changes. Start every loan decision here — it is the cheapest and best analysis available, and it costs nothing.

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