SEATTLE -- The year is nearly half over, so it's a good time to check your federal income tax withholding.

"So that you don't get a surprise come April when you submit your tax return for 2009 that you may owe money or get less of a refund," said Judy Monahan with the Seattle IRS office.

The American Recovery and Reinvestment Act lowered the withholding rates for millions of Americans, so there would be a bit more money in each paycheck.

The IRS says because of that, certain types of taxpayers should make sure enough tax is being withheld.

"People who have had multiple jobs during the year, or if both spouses work, or workers who could be claimed as a dependent on another’s tax return or pensioners," Monahan said.

It's real easy to find if you're on track. The IRS has a withholding calculator on its Web site. You can adjust your withholding by filing a revised Form W-4 with your employer.

More Information:

Check Your Withholding