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Buildstudent loansmoneycalculator

Build a calculator that tells graduates whether overpaying their student loan is worth it

The IFS estimates that only around 20 to 25% of Plan 2 borrowers will clear their loan before it is written off after 30 years. For many people, overpaying just hands over money for nothing, yet the question comes up constantly. Build an honest calculator that shows the likely outcome for every plan.

Posted 5h ago by The Unsolved team

Once solved, this helps students.

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A solution must include

  1. Supports Plans 1, 2, 4, 5 and Postgraduate, with current thresholds and interest rules
  2. Projects total repaid with and without overpayments, with adjustable salary growth
  3. Clearly shows the write-off date and how much is likely to be written off
  4. Assumptions and sources shown (GOV.UK, Student Loans Company)
  5. Runs entirely in the browser, no account

How it’s verified: Live URL; Public repo or methodology page; Three worked examples checked against a spreadsheet.

The first valid solution wins.

The first solution that meets every criterion wins. No end date: open until solved.

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