International Reply Coupons (IRCs) are being phased out as of December 31, 2026

Many thanks to SWLing Post contributor Paul Evans for pointing us to this update from the Universal Postal Union (UPU): after nearly 120 years since their introduction in 1907, International Reply Coupons (IRCs) are being phased out as of 31 December 2026. IRCs have long served as a universal postage currency, allowing SWLs to prepay [...]