Savings & Investing
NS&I vs High Street Savings — Where Should You Save?
Comparing NS&I savings accounts with high street banks. Interest rates, safety, access, and which offers the best deal for your money.
NS&I (National Savings & Investments) and high street banks both offer savings accounts, but they have key differences.
Quick Comparison
| Feature |
NS&I |
High Street Banks |
| Backed by |
UK Government (100%) |
FSCS (up to £85,000) |
| Rate competitiveness |
Variable |
Often higher |
| Product range |
Limited |
Wide |
| Tax treatment |
Some tax-free |
Taxable (above PSA) |
| Access |
Online, phone, post |
Online, app, branch |
| Interest payment |
Varies by product |
Monthly/annually |
Safety Comparison
NS&I
| Protection |
Details |
| Backed by |
HM Treasury |
| Guarantee |
100% of all deposits |
| No limit |
Any amount protected |
| Risk |
Effectively zero |
High Street Banks
| Protection |
Details |
| Backed by |
FSCS |
| Limit |
£85,000 per institution |
| Joint accounts |
£170,000 protected |
| Bank groups |
Some banks share limit |
Which Is Safer?
| Amount |
Winner |
| Under £85,000 |
Both equally safe |
| £85,000-£170,000 |
Spread across banks, or use NS&I |
| Over £170,000 |
NS&I (no limit) |
NS&I Products
Premium Bonds
| Feature |
Details |
| How it works |
Monthly prize draw instead of interest |
| Prize fund rate |
~4% (distributed as prizes) |
| Prizes |
£25 to £1,000,000 |
| Tax |
Tax-free |
| Min/max |
£25 / £50,000 |
| Access |
2-3 working days |
Note: Returns not guaranteed — you may win nothing.
Full guide: Premium Bonds Explained
Income Bonds
| Feature |
Details |
| Interest |
Variable rate |
| Payment |
Monthly |
| Access |
Easy access |
| Tax |
Taxable |
| Min/max |
£500 / £1 million |
Direct Saver
| Feature |
Details |
| Interest |
Variable rate |
| Payment |
Annually |
| Access |
Easy access |
| Tax |
Taxable |
| Min/max |
£1 / £2 million |
Green Savings Bonds
| Feature |
Details |
| Term |
Fixed (usually 3 years) |
| Interest |
Fixed rate |
| Purpose |
Funds green projects |
| Tax |
Taxable |
NS&I ISAs
| Feature |
Details |
| Tax |
Tax-free |
| Rate |
Often below best ISAs |
| Access |
Usually easy access |
| Limit |
Standard ISA allowance |
High Street Bank Products
Easy Access Accounts
| Feature |
Details |
| Access |
Instant withdrawals |
| Rate |
Variable |
| Examples |
Many banks offer |
| Best rates |
Often challenger banks |
Notice Accounts
| Feature |
Details |
| Access |
After notice period (30-120 days) |
| Rate |
Usually higher than instant |
| Flexibility |
Less than easy access |
Fixed Rate Bonds
| Feature |
Details |
| Term |
1-5 years typically |
| Rate |
Fixed, often highest |
| Access |
Usually none until maturity |
| Penalty |
For early access |
Cash ISAs
| Feature |
Details |
| Tax |
Tax-free |
| Limit |
£20,000/year (total ISA allowance) |
| Rates |
Often competitive |
| Types |
Easy access, fixed |
Rate Comparison (Check Current Rates)
| Product Type |
NS&I (Typical) |
Best Banks (Typical) |
| Easy access |
2-3% |
4-5% |
| Fixed 1 year |
Varies |
4.5-5% |
| Cash ISA |
2-3% |
4-4.5% |
| Premium Bonds |
~4% (prize rate) |
N/A |
Note: Rates change frequently. Always check current rates before deciding.
Tax Considerations
Personal Savings Allowance (PSA)
| Tax Band |
Tax-Free Interest |
| Basic rate |
£1,000 |
| Higher rate |
£500 |
| Additional rate |
£0 |
Tax-Free Options
| Product |
Tax Status |
| Premium Bonds |
Tax-free |
| Cash ISAs |
Tax-free |
| NS&I Direct ISA |
Tax-free |
| Regular savings |
Taxable (above PSA) |
Who Benefits From Tax-Free?
| Situation |
Benefit |
| Basic rate, interest under £1,000 |
Little benefit |
| Higher/additional rate |
More benefit |
| Large savings |
More benefit |
When to Choose NS&I
NS&I Makes Sense If
| Situation |
Why |
| Savings over £85,000 |
Extra protection |
| Want Premium Bonds |
Unique product |
| Very risk-averse |
Government backing |
| Like tax-free prizes |
Premium Bonds |
NS&I Products Worth Considering
| Product |
When |
| Premium Bonds |
Want tax-free, like the gamble |
| Income Bonds |
Need monthly income, rate competitive |
| Green Bonds |
Want ethical, rate acceptable |
When to Choose Banks
Banks Make Sense If
| Situation |
Why |
| Want best rate |
Often higher than NS&I |
| Need instant access |
Better app/online banking |
| Under £85,000 |
FSCS protection sufficient |
| Want branch access |
NS&I is remote only |
Best Bank Products
| Situation |
Consider |
| Emergency fund |
Easy access, best rate |
| Short-term goal |
Notice account |
| Long-term saving |
Fixed rate bond |
| Tax-free |
Cash ISA |
Splitting Your Savings
Sensible Approach
| Amount |
Strategy |
| First £85,000 |
Best rates (any institution) |
| Additional £85,000 |
Different banking group |
| Beyond £170,000 |
NS&I for extra security |
| Fun money |
Premium Bonds |
Example Portfolio
| Product |
Amount |
Purpose |
| High-interest easy access |
£10,000 |
Emergency fund |
| Cash ISA |
£20,000 |
Tax-free savings |
| Fixed rate bond |
£30,000 |
House deposit |
| Premium Bonds |
£10,000 |
Tax-free, fun |
Summary: Quick Decision Guide
Choose NS&I If
| Criteria |
Check |
| Over £85,000 to save |
☐ |
| Want Premium Bonds |
☐ |
| Rate is competitive |
☐ |
| Value government backing |
☐ |
Choose Banks If
| Criteria |
Check |
| Want best rate |
☐ |
| Under £85,000 total |
☐ |
| Want app/branch access |
☐ |
| Need specific product |
☐ |
Always
| Action |
Why |
| Compare rates |
They change constantly |
| Check FSCS limits |
Know your protection |
| Use ISA allowance |
If beneficial |
| Spread if over limits |
Multiple institutions |
Key Resources
| Resource |
For |
| nsandi.com |
NS&I rates and products |
| MoneySavingExpert |
Best buy tables |
| Bank websites |
Current rates |
| FSCS |
Protection checker |
Neither NS&I nor high street banks are always better — it depends on current rates, your tax situation, and how much you’re saving. The smartest approach is usually a mix: use NS&I for its unique products (Premium Bonds) and extra security on large sums, and use banks when they offer better rates.