Post Office Prices April 2024 Post Office. From 01 january 2024, interest rates for post office monthly income scheme will be 7.4% per annum, payable monthly. Royal mail has announced that from april 2024, the price of stamps will go up.

For every additional 100 gms or part thereof, exceeding 100 gms. First class stamps will cost 10p more at £1.35, and second class stamps will also increase by 10p.