United States Postal Service's Postage Rates Increase Today

The cost of mailing a letter or a bill just lot a little more expensive.

Beginning Sunday, the cost of a first-class stamp increased to 46 cents.

The cost of a stamp has more than doubled since 1985, when one cost $.22. Click here for a breakdown of the history of US postage rate increases.

Here's a rundown of the most recent price increases:

• Letters (1 oz.) — 1-cent increase to 46 cents
• Letters additional ounces — unchanged at 20 cents
• Letters to all international destinations (1 oz.) — $1.10
• Postcards — 1-cent increase to 33 cents

The USPS will also introduce a new First-Class Mail Global Forever Stamp. The stamp allows people to mail letters anywhere in the world for $1.10.

In addition, several new shipping services products will be available in January. Free tracking will be offered to all packages, including retail Priority Mail and Parcel Post.

Priority Mail rates also will see an increase. The new rates are as follows:

• Small box — $5.80
• Medium box — $12.35
• Large box — $16.85
• Large APO/FPO box — $14.85
• Regular envelope — $5.60
• Legal envelope — $5.75
• Padded envelope — $5.95