Help to Buy Calculator
Most Help to Buy calculators show you a single number. Ours shows you the full picture — escalating interest projections, side-by-side options comparison, and what happens if you do nothing.
Your Details
The full price you paid when you bought your home
The government's share — 20% outside London, 40% in London
When you got the keys to your home
Check your mortgage completion letter if unsure
Important: These calculations are estimates for illustration only. They do not constitute financial advice. The interest figures use default inflation assumptions which may differ from actual rates. For advice specific to your situation, please consult a qualified mortgage adviser.
Want to understand how this works? Read our guide to Help to Buy interest or see how it works.
What makes this calculator different
- Year-by-year interest escalation projections
- Side-by-side options: keep paying vs remortgage vs staircase
- Adjustable assumptions: property growth and inflation rate