Mortgage & Property Guide · 2026/27
Help to Buy Equity Loan Repayment 2026/27: Interest, Staircasing & Redemption
Hundreds of thousands of homeowners who bought with a Help to Buy equity loan between 2013 and 2023 are now facing rising interest fees as their five-year interest-free period ends. This guide explains exactly how the interest, staircasing, and full repayment (redemption) rules work -- and the numbers that determine what you owe.
How the Help to Buy Equity Loan Works
Under the Help to Buy Equity Loan scheme (closed to new applicants since October 2022), the government lent first-time buyers of new-build homes an equity loan of 20% of the purchase price (40% in London), on top of a minimum 5% cash deposit, leaving a mortgage of 75% (55% in London) to cover the rest.
Crucially, the equity loan is not a fixed cash debt -- it is a percentage stake in the property. That means what you eventually repay depends on the property's value at the time of repayment, not the amount originally borrowed.
The Interest Fee Timeline
| Period | Interest fee |
|---|---|
| Years 1–5 | £0 (interest-free) |
| Year 6 | 1.75% of the original loan amount |
| Year 7 onwards | Previous year's rate + (RPI + 2%), each April |
This compounding structure means the interest fee can rise significantly during periods of higher inflation, since the RPI+2% uplift applies to the rate itself, not just the original loan. Many homeowners find it worth staircasing or fully redeeming before the fee climbs too high, especially in years following elevated RPI readings.
Worked Example: Repaying a 20% Equity Loan
Tom bought a new-build for £250,000 in 2019, using a 20% equity loan of £50,000. By 2026, an independent RICS valuation values the property at £300,000. Because the equity loan is a percentage of current value, Tom owes 20% of £300,000 = £60,000 to fully redeem the loan -- £10,000 more than he originally borrowed, reflecting the property's growth in value.
If Tom instead chooses to staircase 10% now (buying back half of his 20% stake), he pays 10% of £300,000 = £30,000, reducing his outstanding equity loan to 10% of the property's future value, and reducing the base on which future interest is charged.
Key Help to Buy Facts at a Glance
- Interest-free period
- First 5 years from legal completion
- Year 6 interest rate
- 1.75% of original loan amount
- Year 7+ increase
- RPI (previous Nov) + 2%, each April
- Repayment basis
- % of current market value, not original price
- Minimum staircasing step
- Usually 10% (5% on some scheme versions)
- Scheme status
- Closed to new buyers since Oct 2022