How Much Does A Postcard Stamp Cost 2024. The prices for domestic postcard stamps will also increase by two cents from 51 cents to 53 cents and international postcards will increase from $1.50 to $1.55. Explore the usps postage rate shifts for postcards, flats, and letter sizes in 2024, and optimize your mailing strategies accordingly to save costs.

Postal service filed notice with the postal regulatory commission of mailing services price changes to take effect july 14, 2024. The postal regulatory commission (prc) has approved the next usps postage rate increases, which will take effect on sunday, july 14, 2024.