The cost of mailing a letter in the U.S. increased by 5 cents on Sunday, with first-class stamps rising from 73 to 78 cents.

Metered letters now cost 74 cents, domestic postcards 61 cents, and international mail $1.70. This marks the 10th rate hike in nine years.

The USPS plans further increases through 2027, NBC 5 Chicago has reported.

Meanwhile, the Trump administration has discussed reforms, including potential privatization or moving USPS under White House control, though such changes would need congressional approval.

Written by B.C. Begley