Every savings rate we track, ranked

Every rate we track, ranked by rate. Collected each morning from the provider's own page, dated per row. The ones we've checked by hand say so. Information, not advice.

ISA allowance

Live example

Example: pay £4,000 into ISAs this tax year and £16,000 of the £20,000 allowance is left.

1195 accounts from 88 providers · rates last checked 23 Sep 2026 · ranked by rate · nothing changes that order · how we make money · what Blooom can’t do

Same £1, different shelves. Every rate here is what each £1 earns in a year — but shelves differ in how much they'll take and when you can have it back. An 8% regular saver only takes £200 a month; an easy-access account takes your whole balance today. So the front page shows the top of each shelf, not one mixed list — tap a shelf for its full ranked feed.

Cash ISA · Tax-free wrapper — ranked by rate within this shelf

68 providers

Cash ISAs come in two shapes, so they're shown apart — an easy-access ISA you can dip into, and a fixed-term ISA you lock away for a set period. Ranked by rate within each.

Easy-access ISA

Beverley Building Society Regular Saver Cash ISA
4.50%
AER
4.50%
AER
Max in
Whole balance
Access
Out any day · tax-free
Condition
2.4% + 2.1% bonus
Checked
collected automatically from the provider's own page · 23 Sep 2026
Plum Cash ISA
4.44%
AER
4.44%
AER
Max in
Whole balance
Access
Out any day · tax-free
Condition
2.54% + 1.9% bonus
Checked
collected automatically from the provider's own page · 23 Sep 2026
Monument Bank Easy Access Cash ISA Boosted Rate
4.34%
AER
4.34%
AER
Max in
Whole balance
Access
Out any day · tax-free
Condition
3.74% + 0.6% bonus
Checked
collected automatically from the provider's own page · 23 Sep 2026
Tandem Bank Instant Access Cash ISA
4.00%
AER
4.00%
AER
Max in
Whole balance
Access
Out any day · tax-free
Condition
3.75% + 0.25% bonus
Checked
collected automatically from the provider's own page · 23 Sep 2026
Sidekick Cash ISA
3.23%
AER
3.23%
AER
Max in
Whole balance
Access
Out any day · tax-free
Condition
1.85% + 1.38% bonus
Checked
collected automatically from the provider's own page · 21 Sep 2026

Fixed-term ISA

Newcastle Building Society 5 Year Fixed Rate ISA (Issue 87)
4.65%
AER
4.65%
AER
Access
Locked 60 months · tax-free
Condition
Fixed to 22 Aug 2031; withdrawals permitted subject to 365 days of lost interest
Checked
collected automatically from the provider's own page · 21 Sep 2026

Rates are collected automatically from each provider's own website and dated per row. Rates and terms can change at any time and occasionally a provider's page changes faster than we do — always confirm the current rate with the provider before opening an account. No provider pays to appear or to rank.

Interest shown is the amount earned before any tax. Whether you owe tax on it depends on your circumstances and is settled through your own tax return — it isn't worked out or deducted here.

Interest earned inside an ISA is tax-free.