Some people are surprised to learn they're due a large federal income tax refund when they file their taxes. Others are surprised that they owe more taxes than they expected. When this happens, it's a good idea to check your federal tax withholding or payments. Doing so now can help avoid a tax surprise when you file your 2013 tax return next year.

Here are some tips to help you bring the tax you pay during the year closer to what you'll actually owe.

Wages and Income Tax Withholding

  • New Job. Your employer will ask you to complete a Form W-4, Employee's Withholding Allowance Certificate. Complete it accurately to figure the amount of federal income tax to withhold from your paychecks.
  • Life Event Change your Form W-4 when certain life events take place. A change in marital status, birth of a child, getting or losing a job, or purchasing a home, for example, can all change the amount of taxes you owe. You can typically submit a new Form W-4 anytime.
  • IRS Withholding Calculator This handy online tool will help you figure the correct amount of tax to withhold based on your situation. If a change is necessary, the tool will help you complete a new Form W-4.

Self-Employment and Other Income

  • Estimated Tax. This is how you pay tax on income that's not subject to withholding. Examples include income from self-employment, interest, dividends, alimony, rent and gains from the sale of assets. You also may need to pay estimated tax if the amount of income tax withheld from your wages, pension or other income is not enough. If you expect to owe a thousand dollars or more in taxes and meet other conditions, you may need to make estimated tax payments.
  • Form 1040-ES. Use the worksheet in Form 1040-ES, Estimated Tax for Individuals, to find out if you need to pay estimated taxes on a quarterly basis.
  • Change in Estimated Tax. After you make an estimated tax payment, some life events or financial changes may affect your future payments. Changes in your income, adjustments, deductions, credits or exemptions may make it necessary for you to refigure your estimated tax.
  • Additional Medicare Tax A new Additional Medicare Tax went into effect on Jan. 1, 2013. The 0.9 percent Additional Medicare Tax applies to an individual's wages, Railroad Retirement Tax Act compensation and self-employment income that exceeds a threshold amount based on the individual's filing status. For additional information on the Additional Medicare Tax, see our questions and answers.
  • Net Investment Income Tax A new Net Investment Income Tax went into effect on Jan. 1, 2013. The 3.8 percent Net Investment Income Tax applies to individuals, estates and trusts that have certain investment income above certain threshold amounts. For additional information on the Net Investment Income Tax, see our questions and answers.

See Publication 505, Tax Withholding and Estimated Tax, for more on this topic. You can get it at IRS.gov or by calling 1-800-TAX-FORM (1-800-829-3676).

TaxACT helps you determine how much you should withhold and complete a Form W-4 you can print and turn into your employer. Simply sign in to your TaxACT Online account or start your desktop program and click on the blue "Next Year" tab.

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Upcoming Tax Dates

March 2All businesses
File information returns (for example, Forms 1099) for certain payments you made during 2014.

March 2Farmers & fishermen
File your 2014 income tax return (Form 1040) and pay any tax due - Details

March 2Payers of gambling winnings.
File Form 1096 along with Copy A of all the Forms W2G you issued for 2014. If you file Forms W2G electronically, your due date for filing them with the IRS will be extended to March 31. The due date for giving the recipient these forms remains February 2.

March 2 All employers
File Form W3, Transmittal of Wage and Tax Statements, along with Copy A of all the Forms W2 you issued for 2014. If you file Forms W2 electronically, your due date for filing them with the SSA will be extended to March 31. The due date for giving the recipient these forms remains February 2.

March 2 Large food and beverage establishment employers
File Form 8027, Employer's Annual Information Return of Tip Income and Allocated Tips. Use Form 8027T, Transmittal of Employer's Annual Information Return of Tip Income and Allocated Tips, to summarize and transmit Forms 8027 if you have more than one establishment. If you file Forms 8027 electronically, your due date for filing them with the IRS will be extended to March 31.

March 2 Wagering tax
File Form 730 and pay the tax on wagers accepted during January.

March 2 Heavy highway vehicle use tax
File Form 2290 and pay the tax for vehicles first used in January.

March 10 Employees who work for tips
If you received $20 or more in tips during February, report them to your employer - Details

March 11 Communications and air transportation taxes under the alternative method.
Deposit the tax included in amounts billed or tickets sold during the first 15 days of February.

March 13 Regular method taxes
Deposit the tax for the last 13 days of February.

March 16 Corporations
File a 2014 calendar year income tax return (Form 1120) and pay any tax due - Details

March 16 S Corporations
File a 2014 calendar year income tax return (Form 1120S) and pay any tax due - Details

March 16 S Corporation election
File Form 2553, Election by a Small Business Corporation, to elect to be treated as an S corporation beginning with calendar year 2015. If Form 2553 is filed late, S corporation treatment will begin with calendar year 2016.

March 16 Electing larger partnerships
Provide each partner with a copy of Schedule K1 (Form 1065B), Partner's Share of Income (Loss) From an Electing Large Partnership, or a substitute Schedule K1. This due date applies even if the partnership requests an extension of time to file the Form 1065B by filing Form 7004

March 16 Social security, Medicare, and withheld income tax
If the monthly deposit rule Page 6 Publication 509 (2015) applies, deposit the tax for payments in February.

March 16 Nonpayroll withholding
If the monthly deposit rule applies, deposit the tax for payments in February.

March 25 Communications and air transportation taxes under the alternative method.
Deposit the tax included in amounts billed or tickets sold during the last 14 days of February.

March 27 Regular method taxes
Deposit the tax for the first 15 days of March.

March 31 Electronic filing of Forms W2
File copies of all the Forms W2 you issued for 2014. This due date applies only if you electronically file.

March 31 Electronic filing of Forms W2G
File copies of all the Forms W2G you issued for 2014. This due date applies only if you electronically file.

March 31 Electronic filing of Forms 8027
File Forms 8027 for 2014. This due date applies only if you electronically file.

March 31 Wagering tax
File Form 730 and pay the tax on wagers accepted during February.

March 31 Heavy highway vehicle use tax
File Form 2290 and pay the tax for vehicles first used in February.

March 31 Electronic filing of Forms 1097, 1098, 1099, 3921, 3922, and W2G.
File Forms 1097, 1098, 1099, 3921, 3922, and W2G with the IRS. This due date applies only if you file electronically. Otherwise, see March 2. The due date for giving the recipient these forms generally remains February 2. View More Tax Dates