usps priority mail flat rate envelope 11 x 15

For First-Class letter-sized envelopes, one ounce is 55 cents and 15 cents for each additional ounce. Some tax returns include many forms and require additional postage.

Clearly and correctly address your envelope, including the return address, and use the correct ZIP Code, if not using the Internal Revenue Service (IRS) pre-addressed envelope.

Your tax envelope must be deposited prior to the last scheduled pick-up time posted to receive the April 15 postmark.

If depositing a tax return in a blue collection box on April 15, double check the scheduled pick-up time.

Mail early in the day at any Post Office. Be sure to verify Post Office hours of operation.

Postal employees offer the following Tax Day tips:

Visit, select “Mail and Ship” on the toolbar, and then from the drop menu, choose “Find a USPS Location.” and can help you meet that all important April 15 deadline.

Aviation mail security & hazardous materialsĪpUSPS Offers Tax Tips for Last-Minute Filersīirmingham, AL -If you’re still sharpening your pencil to work on your federal income tax next Monday, many Alabama Post Offices regularly are open after 5 p.m.

Usps priority mail flat rate envelope 11 x 15