Best Savings Accounts for Large Sums UK — Where to Put £50,000+

Got a large sum to save? Here’s where to put it safely while earning the best returns.

FSCS Protection: The £85,000 Limit

What Is FSCS?

Protection	Details
What	Financial Services Compensation Scheme
Coverage	Up to £85,000 per person per bank
Joint accounts	Up to £170,000
If bank fails	Money returned within 7 days
Applies to	All UK-authorised banks

Key Rule

If You Have	Protection
£50,000 in one bank	Fully protected
£85,000 in one bank	Fully protected
£100,000 in one bank	£85,000 protected, £15,000 at risk
£100,000 split across two banks	Fully protected

Banks That Share a Licence

Same Banking Licence	Different Licences
Halifax & Bank of Scotland	HSBC
NatWest & RBS	Barclays
First Direct & HSBC	Lloyds
Nationwide (building society)	Santander

Check before spreading money — some banks share a licence!

Where to Save Large Amounts

Option 1: Multiple Bank Accounts

Strategy	How It Works
Split savings	Across different banking licences
£85k limit each	Stay under at each provider
Example for £200k	£85k Bank A, £85k Bank B, £30k Bank C

Option 2: NS&I (Government-Backed)

NS&I Product	Limit	Guarantee
Premium Bonds	£50,000	100% HM Treasury
Income Bonds	£1,000,000	100% HM Treasury
Direct Saver	£2,000,000	100% HM Treasury

NS&I is backed by the government — unlimited protection, not just £85k.

Option 3: Fixed-Rate Bonds

Product	Features
1-year fixed	Better rate, 12-month commitment
2-year fixed	Often best rates
Split across banks	For FSCS protection
Consider term	Match to when you need money

Option 4: Cash ISAs

Type	Features
Easy access Cash ISA	Flexibility, decent rates
Fixed-rate Cash ISA	Better rates, term commitment
Tax-free	Interest doesn’t count toward tax
Allowance	£20,000 per year total ISA limit

Best Accounts for Large Savings

Easy Access (Sample Rates)

Provider	Type	Rate	FSCS
Regular banks	Easy access	3-4.5%	Yes
Chase	Saver account	Competitive	Yes
Marcus (Goldman Sachs)	Easy access	Competitive	Yes
Chip	Instant access	Competitive	Yes

Fixed-Rate Bonds (Sample Rates)

Term	Typical Rate
1 year	4-5%
2 years	4-4.5%
3 years	4%
5 years	3.5-4%

Rates change constantly — always check current offers.

NS&I Products

Product	Rate/Prize Fund	Access
Premium Bonds	~4% prize fund	Easy
Income Bonds	Variable (check current)	Easy
Direct Saver	Variable (check current)	Easy

Strategy for Different Amounts

£50,000

Option	Approach
Simple	One high-rate account (under FSCS limit)
Better	Mix of fixed rates and easy access
Tax-efficient	Max ISA allowance first

£100,000

Priority	Action
1	Split across two banking licences minimum
2	£85k in Bank A, £15k in Bank B
3	Or £50k NS&I Premium Bonds + £50k in bank
4	Consider tax position

£250,000+

Approach	Details
Multiple banks	At least 3 different licences
NS&I	Up to £50k Premium Bonds + other NS&I
Cash ISAs	Max ISA allowance
Consider advice	Financial adviser for large sums

Tax Considerations

Personal Savings Allowance

Tax Band	Tax-Free Interest
Basic rate (20%)	£1,000/year
Higher rate (40%)	£500/year
Additional rate (45%)	£0

Example Tax Calculation

Savings	Interest Rate	Annual Interest	Tax-Free Allowance	Taxable
£100,000	4%	£4,000	£1,000 (basic rate)	£3,000
Tax at 20%	—	—	—	£600

Tax-Efficient Strategies

Strategy	Benefit
Cash ISA	Interest is tax-free
NS&I Premium Bonds	Wins are tax-free
Partner’s account	Use their PSA too
Overpay mortgage	Tax-free “return”

Premium Bonds for Large Savings

How They Work

Feature	Details
Maximum holding	£50,000
Minimum	£25
Prize fund rate	~4% annually
Prizes	Monthly, tax-free
No guaranteed return	Luck-based

Pros and Cons

Pros	Cons
100% government-backed	No guaranteed return
Tax-free wins	May win nothing
Easy access	Interest rate may be lower overall
Good for higher-rate taxpayers	Not optimal for basic rate

Who Premium Bonds Suit

Good For	Less Suitable For
Higher-rate taxpayers	Basic-rate taxpayers
Those wanting security	Those needing guaranteed return
Supplementing other savings	Sole savings vehicle
Fun element	Pure optimisation

Fixed-Rate Laddering Strategy

What Is Laddering?

Concept	How It Works
Split savings	Across different terms
Stagger maturity	Money available at intervals
Flexibility	Some access while earning better rates

Example: £100,000 Ladder

Amount	Term	Matures
£30,000	1-year fixed	Year 1
£30,000	2-year fixed	Year 2
£20,000	3-year fixed	Year 3
£20,000	Easy access	Anytime

Benefits

Benefit	Details
Higher total return	Fixed rates beat easy access
Regular access	Something matures each year
Rate flexibility	Reinvest at current rates
Spreads risk	Not locked to one rate

Summary: Large Sum Savings Plan

Step-by-Step

Step	Action
1	Calculate total amount
2	Check FSCS coverage across providers
3	Consider tax position
4	Decide on access needs
5	Split across multiple providers
6	Mix fixed and easy access

Sample £100,000 Plan

Allocation	Amount	Purpose
Cash ISA	£20,000	Tax-free interest
Premium Bonds	£50,000	Government-backed, tax-free
1-year fixed (Bank A)	£30,000	Better rate, different licence
Total	£100,000	Fully protected

Key Principles

Principle	Why
Stay under £85k per licence	FSCS protection
Use ISA allowance	Tax-free returns
Consider NS&I	Government guarantee
Match access to needs	Don’t lock away what you need
Review rates regularly	Rates change

With large sums, safety comes first. Spread your money, stay within FSCS limits, and balance returns with access needs.