Money Guides
⏱ 2 min read
📅 Updated Apr 2026
What Is AER? Annual Equivalent Rate Explained UK 2026
UK Finance Guide — April 2026 AER (Annual Equivalent Rate) is the standard measure used to compare savings accounts in the UK regardless of how often interest is paid. It shows what your annual interest rate would be if interest were paid and compounded once per year. AER vs Gross Rate| Rate | What It Shows | Notes |
|---|
| AER | Effective annual rate including compounding | Always use this to compare | | Gross Rate | Interest before compounding | Lower than AER if interest paid more than annually | | Net Rate | After basic rate tax deduction | Rarely used — personal savings allowance applies |
| Simple rule: Always compare savings accounts using AER. Two accounts with different gross rates but the same AER will earn you the same amount. |
AER Example| Deposit | AER | Interest in 1 Year | Balance After 1 Year |
|---|
| £1,000 | 4.81% | ~£49 | ~£1,049 | | £5,000 | 4.81% | ~£245 | ~£5,245 | | £10,000 | 4.81% | ~£491 | ~£10,491 | | £20,000 | 4.81% | ~£981 | ~£20,981 |
Best Savings AER Rates April 2026| Account Type | Best AER | Notes |
|---|
| Easy access savings | 4.81% | Instant withdrawal variable rate | | Cash ISA easy access | 4.50% | Tax-free instant access | | 1-year fixed | 4.80% | Locked 12 months | | Regular savings | 7.00% | Monthly deposits max £500/month | | Premium Bonds | 4.40% equivalent | Prize-based not guaranteed |
Does AER Include Tax?No — AER is the gross rate before tax. Most UK savers pay no tax on savings interest thanks to the Personal Savings Allowance — basic rate taxpayers earn up to £1,000 tax-free per year. Bottom line: Always use AER when comparing savings accounts. The best easy access rate in April 2026 is 4.81% AER — on £10,000 that is £491 per year, far more than the average high street bank rate of around 1.5%. |
By Chandraketu Tripathi · Updated April 2026 · kaeltripton.com |
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Editorial Disclaimer
The content on Kaeltripton.com is for informational and educational purposes only and does not constitute financial, investment, tax, legal or regulatory advice. Kaeltripton.com is not authorised or regulated by the Financial Conduct Authority (FCA) and is not a financial adviser, mortgage broker, insurance intermediary or investment firm. Nothing on this site should be construed as a personal recommendation. Rates, figures and product details are indicative only, subject to change without notice, and should always be verified directly with the relevant provider, HMRC, the FCA register, the Bank of England, Ofgem or other appropriate authority before any financial decision is made. Past performance is not a reliable indicator of future results. If you require regulated financial advice, please consult a qualified adviser authorised by the FCA.
CT
Chandraketu Tripathi
Finance Editor · Kaeltripton.com
Chandraketu (CK) Tripathi, founder and lead editor of Kael Tripton. 22 years in finance and marketing across 23 markets. Writes on UK personal finance, tax, mortgages, insurance, energy, and investing. Sources: HMRC, FCA, Ofgem, BoE, ONS.
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