Customers will be able to drop returns in the drive through area at the Main Post Office in Downtown St. Louis. You'll have until midnight to get the forms postmarked.
Postal service officials say they will not have employees on the streets in front of the Post Office to collect returns like they've done in past years. Also, none of the offices in the St. Louis metro area will extend their retail hours on Tax Day.
If you're mailing in your return and not e-filing, post officials are encouraging customers to get their returns in the mail early in the day. Postal officials say if you need postage and mailing supplies, you can use the Downtown location until 8 p.m. Monday night.
Besides the drive-through collection area, there will also be large collection boxes right along Market Street where customers can drop off returns before midnight to get that all-important postmark.
The Postal service reminds people that the most common mistake Americans make in mailing their tax forms is not including enough postage and not providing the correct IRS mailing address, so make sure you get it right.