Postal Service will offer last-minute Tax Day postmark on Monday night

SEATTLE – Two U.S. Postal Service locations in the Puget Sound area will offer late hours for federal tax mail collection Monday, April 18.

This year’s deadline has been extended by the IRS to April 18 due to a holiday in the Washington, D.C. area.

Tax forms may be deposited in the collection box until 10:30 p.m. at the Tacoma Mail Processing Center, 4001 S. Pine St. (The collection box is on S. 42nd St. on the south side of the building.) The adjacent Evergreen Station will be open until 7 p.m.

A Postal Service representative will be in the lobby of the Tukwila Post Office, 225 Andover Park W., until midnight on April 18 to assist customers using the self-service kiosk to mail their tax returns.

Here are some tax mailing tips:

Make sure your tax return has sufficient postage.

First-Class postage is 47-cents for the first ounce and 20-cents for each additional ounce.  If you are mailing a number of supplementary forms and schedules with your return, the envelope is likely to weigh more than one ounce.

The IRS will not pay postage due.  Mail with insufficient postage is returned to sender.  If you are in doubt about how much postage to apply, use a lobby scale or ask a postal clerk for assistance.

When mailing your return at a post office, check the times posted on the blue collection box to determine the last scheduled pickup time.