What is NS&I? UK Sovereign-Backed Savings Explained
The only UK savings provider where the £85,000 FSCS limit does not apply, because the protection is the Treasury itself. Here is what NS&I actually is and when it makes sense to use it.
NS&I product range and rates (May 2026)
| Product | Rate | Max holding |
|---|---|---|
| Premium Bonds | 3.30% prize fund (3.80% from July) | £50,000 |
| Direct Saver | 3.45% AER | £2,000,000 |
| Income Bonds | 3.45% AER monthly | £1,000,000 |
| Direct ISA | 3.80% tax-free | £20,000 (ISA limit) |
| Green Savings Bonds (3yr) | 3.82% fixed | £100,000 |
| Guaranteed Growth Bonds (1yr) | 4.50% fixed | £1,000,000 |
All sovereign-backed. No £85,000 FSCS cap. Rarely best-buy.
Key takeaways
NS&I is the UK government's own retail savings bank, owned by HM Treasury and used as a debt-funding mechanism rather than a normal commercial bank
NS&I deposits are not subject to the £85,000 FSCS limit - protection is effectively unlimited because the Treasury itself stands behind every product
The Premium Bonds prize fund rate is 3.30% until the June 2026 draw, then rises to 3.80% from July 2026, with odds improving from 23,000 to 1 down to 22,000 to 1 per £1 bond
Direct Saver pays 3.45% AER, Income Bonds 3.45% AER, Direct ISA 3.80% tax-free, Green Savings Bonds 3.82% on a 3-year fix - rarely best-buy, always sovereign-backed