A cash ISA saves you, from April 2027
£44a year
£40 in 2026/27 · interest £1,200 a year
| 2026/27 / 2027/28 | |
|---|---|
| Your allowance on savings | £1,000 / £1,000 |
| Interest at 0 % (allowances) | £1,000 / £1,000 |
| Tax in a taxable account | £40.00 / £44.00 |
| Tax in the cash ISA | £0.00 / £0.00 |
| Interest you keep, taxable account | £1,160 / £1,156 |
| Interest at 0 % (allowances) | £1,000 |
| Taxed at 22 % | £200 |
| Tax in a taxable account | £44.00 |
| Tax in the cash ISA | £0.00 |
From 6 April 2027 you can pay at most £12,000 a year into cash ISAs if you are 64 or under on 5 April 2028; money already inside stays tax free.
ISA Sums · tax on savings interest, 2026/27 and 2027/28, worked out in your browser