Tax day: The clock ticks

April 15 is here.

If you're among those who've waited until the last minute to file your taxes, everything you want to know, but haven't taken the time to ask, can be found at the Internal Revenue Service Web site (www.irs.gov). There, you can also find forms from "A" to "EZ," information on refund status and, if you're just not going to make it, information on how to file an extension.

Tax professionals say they're swamped with last-minute filers, and they attribute the promise of economic stimulus checks - for which you have to file a tax return to qualify - for increasing their work load.

The clock is ticking. Here, a tax filing checklist from the IRS site to get you started.

· Review your return: Check to see that the right numbers are in the right places.

· Social Security number: Make sure all Social Security numbers are correct.

· Check the math: Recheck all math entries; simple math errors are one of the most common mistakes on tax returns.

· Sign and date it: Don't forget to sign the return. For a joint return, both spouses must sign, even if one is not reporting any income.

· Attach all forms: Forms W-2, Wage and Tax Statement and other forms that reflect tax withheld should be attached to the front of the return. Don't forget to send required federal forms in with your state return.

· Consider filing electronically: The IRS computer software helps ensure the return is accurate and complete. If your adjusted gross income is $54,000 or less in 2007, you can use Free File, an online tax preparation and e-filing service available through the IRS.

· File for an extension: A six-month extension is available by filing Form 4868 with the IRS, but the form must be filed by April 15. The extension gives you time to get the paperwork done but does not extend the time you have to pay any tax due. Check for state extension filing requirements.

· File to get a rebate check: Even if you're not required to file, you must file this year to get a rebate check.

SideBar: Post office hours

The United States Postal Service has announced extended hours for several metro-Atlanta locations.

In Gwinnett, the following post offices are extending hours to assure that all-important April 15 postmark appears on your envelope.

· 1605 Boggs Road, Duluth (open until midnight)

· 121 E. Crogan St., Lawrenceville (8:30 a.m. to 6 p.m.)

· 1557 Buford Drive, Lawrenceville (9 a.m. to 7 p.m.)

· 5600 Spalding Road, Norcross (8:30 a.m. to 7 p.m.)

· 990 Peachtree Industrial Blvd., Suwanee (8:30 a.m.

to 6 p.m.)

· 4370 Lawrenceville Highway, Lilburn (8:30 a.m.

to 6 p.m.)