TUCSON , AZ – To assist last-minute tax filers, Tucson’s Main Post Office at 1501 S. Cherrybell Stravenue will provide the city’s only location where tax returns may be mailed as late as midnight on Wednesday, April 15 – however, there will be a change from previous years.

This year, drive-through drop-off service will move from the center lane of Cherrybell Stravenue; customers will have to enter the Post Office parking lot off Cherrybell to access drive-through service between 5 p.m. and midnight. Drive-through acceptance of late-night tax returns will be offered only to customers who have the proper postage already affixed.

Full retail services will be available at the Main Post Office only until 8 p.m. This will be the only Tucson location where customers can mail tax returns after 5 p.m. that day and obtain the April 15 postmark. Customers are encouraged to purchase stamps during regular business hours at local retailers, contract postal units, or at a Post Office — locations may be looked up online at usps.com/tax.

The lobby of Tucson’s Main Post Office features an Automated Postal Center, which allows customers to purchase stamps and mail letters and packages 24 hours a day, seven days a week, using a debit or credit card.

Postmaster Carl Grigel urges postal customers to avoid the crowds by mailing their income tax returns earlier than April 15, or at least early on deadline day. Correct postage is a must. First-Class postage is 42 cents for the first ounce and 17 cents for each additional ounce. Customers are encouraged to check the collection times posted on each blue collection box to ensure pick up on April 15th.

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An independent federal agency, the U.S. Postal Service is the only delivery service that reaches every address in the nation, 149 million residences, businesses and Post Office Boxes, six days a week. It has 34,000 retail locations and relies on the sale of postage, products and services, not tax dollars, to pay for operating expenses. Named the Most Trusted Government Agency five consecutive years by the Ponemon Institute, the Postal Service has annual revenue of $75 billion and delivers nearly half the world’s mail.