CompareFairlyBest Cash ISA Accounts 2026
Our pick : Principality Building Society 1 Year Fixed Rate Cash ISA (57/100) · Cheapest : Principality Building Society 1 Year Fixed Rate Cash ISA
In short
This comparison covers 10 cash isa across 11 criteria: Interest Rate, Fixed Rate, Tax Status, App Availability, Access Type, Withdrawal Penalty. Principality Building Society 1 Year Fixed Rate Cash ISA comes first with 57/100, driven by Customer Service Rating (100/100) and Interest Rate (64/100). Leeds Building Society 1 Year Fixed Rate Cash ISA follows at 56/100 and beats it on Minimum Deposit. The cheapest option is Principality Building Society 1 Year Fixed Rate Cash ISA. Sourced data: 7/10 options; the remaining values are estimates, flagged as such.
Comparison table
| Criterion | Principality Building Society 1 Year Fixed Rate Cash ISA | Leeds Building Society 1 Year Fixed Rate Cash ISA | Skipton Building Society 1 Year Fixed Rate Cash ISA | Virgin Money 1 Year Fixed Rate Cash ISA Saver | Kent Reliance 1 Year Fixed Rate Cash ISA | Coventry Building Society 1 Year Fixed Rate Cash ISA |
|---|---|---|---|---|---|---|
| Interest Rate (%) | 4.58 | 4.56 | 4.55 | 4.61 | 4.8 | 4.6 |
| Fixed Rate | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Tax Status | ISA Eligible | ISA Eligible | ISA Eligible | ISA Eligible | ISA Eligible | ISA Eligible |
| App Availability | Basic App | Basic App | Basic App | Full Featured App | Basic App | Basic App |
| Access Type | Restricted | Restricted | Restricted | Restricted | Restricted | Restricted |
| Withdrawal Penalty (%) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Bond Term (months) | 12 | 12 | 12 | 12 | 12 | 12 |
| Customer Service Rating (/5) | 82 | 4.1 | 74 | 4.3 | 4.0 | 4.5 |
| Minimum Deposit (GBP) | 5000 | 1 | 1000 | 1000 | 1000 | 1000 |
| Maximum Deposit (GBP) | 500000 | 500000 | 500000 | 1000000 | 500000 | 500000 |
| Provider | Charter Savings Bank | OakNorth Bank | Aldermore | Hodge Bank | Kent Reliance | Investec Save |
Frequently asked questions
What are the best cash ISA accounts available in 2026?
The top-rated cash ISA accounts in 2026 include the Principality Building Society 1 Year Fixed Rate Cash ISA and the Leeds Building Society 1 Year Fixed Rate Cash ISA, based on our comprehensive comparison.
How do I choose a cash ISA account?
Consider factors like interest rate, whether it's a fixed or variable rate, tax status, app availability, and access type to find the best cash ISA for your needs.
Is the ranking of cash ISA accounts biased?
No, our ranking is completely neutral and not influenced by any payments. Each data point used for comparison is sourced and verifiable.
What is the interest rate for the Principality Building Society 1 Year Fixed Rate Cash ISA?
The Principality Building Society 1 Year Fixed Rate Cash ISA has a competitive interest rate, contributing to its high score in our comparison of cash ISA accounts.
Methodology and transparency
Ranking: options are sorted on measured, sourced criteria. No position is ever sold, and no advertiser pays to appear here.
Scope: this comparison is not exhaustive. It presents the options our sources document, not every offer on the market.
Earnings: some outbound links may be affiliate links that earn us a commission. This never affects the ranking, the scores or the data.
Data: every value is linked to its source and refreshed automatically; the collection date is shown.