Post Office ISAs are provided by OneFamily. Savings in Post Office cash ISAs are deposited with Bank of Ireland UK. All other Post Office savings accounts are provided by Bank of Ireland UK

Compare our variable and fixed interest rates

Find the latest interest rates on all our available savings accounts

Variable rates

Easy Access Cash ISA

Issue 36

Minimum amount to open £100. Annual interest, calculated daily and paid annually in March.

Current rates effective from 06th March 2025

Interest rate with bonus (includes a fixed bonus of 2.25% gross for 12 months) 3.50%
Tax Free/AER variable 
Interest rate without bonus after 12 months 1.25%
Tax Free/AER variable 

Instant Saver

Issue 31

Minimum amount to open £100. Annual interest, calculated daily and paid annually between 20 and 25 March.

Current rates effective from 06th March 2025

Interest rate with bonus (includes a fixed bonus of 2.35% gross for 12 months) 3.60%
Gross/AER variable
Interest rate without bonus after 12 months 1.25%
Gross/AER variable

Online ISA Easy Access

Issue 47

Minimum amount to open £100. Annual interest, calculated daily and paid annually between 20 and 25 March.

Current rates effective from 15th April 2025

Interest rate with bonus (includes a fixed bonus of 2.80% gross for 12 months)

4.05%

Tax Free/AER variable 

Interest rate without bonus after 12 months 1.25%
Tax Free/AER variable

Online Saver

Issue 80 Annual Interest

Minimum amount to open £1. Annual interest, calculated daily and paid annually between 20 and 25 March.

Current rates effective from 15th April 2025

Interest rate with bonus (includes a fixed bonus of 2.80% gross for 12 months) 4.05%
Gross/AER variable
Interest rate without bonus after 12 months

1.25%

Gross/AER variable

Issue 80 Monthly Interest

Minimum amount to open £1. Monthly interest, calculated daily, will be paid on the first business day of each month.

Current rates effective from 15th April 2025

Interest rate with bonus (includes a fixed bonus of 2.73% gross for 12 months) 3.97%

Gross/

4.05%

AER variable

Interest rate without bonus after 12 months 1.24% 

Gross/

1.25%

AER variable

Easy Saver

Issue 12

Interest is variable, calculated daily and paid on the anniversary of the account opening date (or closest business day)

Current rates effective from 12th February 2025

Current Gross/AER
1.25%

Loyalty Bond Holding Account

Interest is variable, calculated daily and paid when funds are transferred into the Loyalty Bond

Current rates effective from 06th March 2025

Current Gross/AER
1.25%

 

Online ISA Holding Account

Interest is variable, calculated daily and paid annually in March

Current rates effective from 06th March 2025

Current Gross/AER
1.25%

 

Online Easy Saver

Issue 12

 

Interest is variable, calculated daily and paid on the anniversary of the account opening date (or closest business day)

Current rates effective from 12th February 2025

Current Gross/AER
1.25%

Definitions

Fixed: A fixed rate of interest remains the same and does not change for the duration of the term.

Variable: A variable rate of interest can go up or down throughout the lifetime of a savings account.

AER: AER stands for Annual Equivalent Rate. It shows what the interest rate would be if interest were paid and added to your account each year.

Gross: Gross rates means we will not automatically deduct tax from the interest we pay on money in your account. It’s your responsibility to pay any tax you may owe to HM Revenue & Customs (HMRC).

Tax-free: Tax-free means that interest paid will be free from UK Income Tax and Capital Gains Tax. The tax advantages depend on your individual circumstances and the tax treatment of your ISA may change in the future.