Help to Save Calculator
Calculate your 50% government bonus on Help to Save. Save £1–£50/month for 4 years and earn up to £1,200 in bonuses from NS&I. For Universal Credit and Working Tax Credit claimants with earnings.
Try another scenario
How to Use This Calculator
Bonus Calculator tab
Enter your monthly savings amount (between £1 and £50). The calculator projects your total savings and government bonus over the full 4-year Help to Save account. It shows the year 2 bonus (50% of your highest balance) and the year 4 bonus (50% of any increase in your highest balance between year 2 and year 4). Toggle "consistent savings" to see how regular deposits build your bonus.
Irregular Savings tab
Set a different monthly amount for each year to see how varying your deposits affects the bonus. The calculator tracks your highest balance month by month and shows the step-by-step bonus calculation. This is useful if your income fluctuates — for example, if you can only save £20/month initially but increase to £50/month later.
Help to Save vs LISA tab
Compare the Help to Save 50% bonus with the Lifetime ISA 25% bonus side by side. Enter a monthly amount and see the total value from each scheme over 4 years. HtS has a higher bonus rate (50% vs 25%) but a lower contribution cap (£50/month vs £333/month). If you're eligible for both, this tab helps you decide where to put your money first.
Share your result
Every input is encoded in the URL. Click Share to send your exact scenario to a partner, benefits adviser, or save it for later.
The Formula
Help to Save uses a two-stage bonus calculation based on the highest balance your account reaches:
Year 4 Bonus = (Highest Balance at Year 4 − Highest Balance at Year 2) × 50%
Total Bonus = Year 2 Bonus + Year 4 Bonus
Maximum: £600 (Year 2) + £600 (Year 4) = £1,200 total
(Achieved by saving £50/month consistently for 4 years)
The key concept is highest balance, not total deposits. If you save £50/month for 24 months, your highest balance is £1,200. If you then withdraw £500, your balance drops to £700 but your highest balance remains £1,200 — and the bonus is calculated on that £1,200.
However, because your balance is now £700, you need to save past £1,200 again before the year 4 highest balance increases. Withdrawals don’t lose your existing bonus entitlement, but they can reduce your future bonus.
Example
Priya — UC claimant earning part-time, saves £50/month for 4 years
Priya works part-time and claims Universal Credit. She earns £950/month and sets up a standing order for £50/month into her Help to Save account with NS&I.
Year 1–2: Building up savings
At the end of year 2, Priya receives a £600 bonus paid directly into her Help to Save account. She can withdraw this bonus immediately if she needs it.
Year 3–4: Continuing to save
Final result
Priya turns £2,400 of savings into £3,600 — a 50% return guaranteed by the government. No other savings product available in the UK offers this rate of return for eligible claimants.