(NEXSTAR) — The United States Postal Service has, again, raised prices on first-class mail, marking just the latest cost increase in recent years.

Back in April, the U.S. Postal Service requested a price increase in order to help it achieve financial stability — the same reasoning it has used for previous rate hikes.

The increase, which took effect Sunday, marks a 7.4 percent bump on first-class mail stamps alone.

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