Postage stamp prices increase by another 5 cents starting Sunday, one of the United States Postal Service's biggest price hikes. Why it matters: This is the 20th stamp rate change since 2000 and the seventh increase since 2021.

First-Class Mail Forever stamps will cost 78 cents while postal insurance costs will decrease, as USPS seeks financial stability without taxpayer funding

USPS will raise rates on stamps and mail services as part of a plan to stabilize its finances. See how the changes could affect your mail and ways to save.