WASHINGTON — The U.S. Department of the Treasury and the Internal Revenue Service (IRS) today ruled that same-sex couples, legally married in jurisdictions that recognize their marriages, will be treated as married for federal tax purposes. The ruling applies regardless of whether the couple lives in a jurisdiction that recognizes same-sex marriage or a jurisdiction that does not recognize same-sex marriage.

The ruling implements federal tax aspects of the June 26 Supreme Court decision invalidating a key provision of the 1996 Defense of Marriage Act.

Under the ruling, same-sex couples will be treated as married for all federal tax purposes, including income and gift and estate taxes. The ruling applies to all federal tax provisions where marriage is a factor, including filing status, claiming personal and dependency exemptions, taking the standard deduction, employee benefits, contributing to an IRA and claiming the earned income tax credit or child tax credit.

Any same-sex marriage legally entered into in one of the 50 states, the District of Columbia, a U.S. territory or a foreign country will be covered by the ruling. However, the ruling does not apply to registered domestic partnerships, civil unions or similar formal relationships recognized under state law.

Legally-married same-sex couples generally must file their 2013 federal income tax return using either the married filing jointly or married filing separately filing status.

Individuals who were in same-sex marriages may, but are not required to, file original or amended returns choosing to be treated as married for federal tax purposes for one or more prior tax years still open under the statute of limitations.

Generally, the statute of limitations for filing a refund claim is three years from the date the return was filed or two years from the date the tax was paid, whichever is later. As a result, refund claims can still be filed for tax years 2010, 2011 and 2012. Some taxpayers may have special circumstances, such as signing an agreement with the IRS to keep the statute of limitations open, that permit them to file refund claims for tax years 2009 and earlier.

Additionally, employees who purchased same-sex spouse health insurance coverage from their employers on an after-tax basis may treat the amounts paid for that coverage as pre-tax and excludable from income.

How to File a Claim for Refund

Taxpayers who wish to file a refund claim for income taxes should use Form 1040X, Amended U.S. Individual Income Tax Return. Taxpayers who wish to file a refund claim for gift or estate taxes should file Form 843, Claim for Refund and Request for Abatement. For information on filing an amended return, see Tax Topic 308, Amended Returns, available on IRS.gov, or the Instructions to Forms 1040X and 843. Information on where to file your amended returns is available in the instructions to the form.

Future Guidance

Treasury and the IRS intend to issue streamlined procedures for employers who wish to file refund claims for payroll taxes paid on previously-taxed health insurance and fringe benefits provided to same-sex spouses. Treasury and IRS also intend to issue further guidance on cafeteria plans and on how qualified retirement plans and other tax-favored arrangements should treat same-sex spouses for periods before the effective date of this Revenue Ruling.

Other agencies may provide guidance on other federal programs that they administer that are affected by the Code.

Revenue Ruling 2013-17, along with updated Frequently Asked Questions for same-sex couples and updated FAQs for registered domestic partners and individuals in civil unions, are available today on IRS.gov. See also Publication 555, Community Property.

Treasury and the IRS will begin applying the terms of Revenue Ruling 2013-17 on Sept. 16, 2013, but taxpayers who wish to rely on the terms of the Revenue Ruling for earlier periods may choose to do so, as long as the statute of limitations for the earlier period has not expired.

It's easy to file an original or amended return with TaxACT 2010, 2011 or 2012. TaxACT Deluxe 2010, 2011 and 2012 include unlimited tax help by email and phone, plus accuracy and maximum refund guarantees. Although the IRS does not accept e-filed 2010 and 2011 returns, or amended 2012 returns, taxpayers can still e-file original 2012 federal returns with TaxACT.

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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