The deadline to file taxes is Tuesday, but for many gay couples the deadline isn’t the problem. Instead many couples are refusing to file separately, which they are required to do because the federal government doesn’t recognize same-sex marriage because of the Defense of Marriage Act.

A group called Refuse to Lie is telling gay couples to file together in an effort to protest the need for repealing DOMA, so they no longer have to lie about being married by filing as single.

“The federal Defense of Marriage Act (DOMA) not only denies legally married gay couples the benefits of marriage, but we are also told to disavow our spouses and file our taxes as ‘single,’” RTL states on its website. “Across the country, legally married gay couples are taking a stand. We are refusing to lie about the fact that we are married. Taking this principled stand is not without risk and each person doing so needs to carefully consider those risks before deciding if it is a stand you are willing to take.”

The Human Rights Campaign has released an issue brief on federal taxation that explains how LGBT families are denied benefits and pay significantly more in taxes.

HRC is encouraging the public to use Facebook and Twitter to spread the message using the hashtag #gaytax and to tweet to House Speaker John Boehner (@speakerboehner) and Majority Leader Eric Cantor (@ericcantor) about their stories of tax inequality in an effort to get them to stop defending DOMA.

Watch a segment on the movement from MSNBC below: