Postage Stamps 2025 Cost Uk. Buy 1st and 2nd class stamp books x 4, x 6 and x 12 from royal mail. If you want to make the most of lower stamp prices and avoid holding on to books of unusable stamps, pay attention to these deadlines over the next 12 months:
This is the new postage rate for international letters effective from 7 october 2025. See the prices for 1st class mail, and where you can purchase postage online or buy stamps
