The U.S. Supreme Court ruled Section 3 of the Defense of Marriage Act (DOMA) unconstitutional, finding it violated the Equal Protection Clause of the Fifth Amendment. Section 3 defined marriage as between one man and one woman and denied federal benefits to same-sex couples. This means same-sex spouses will now be eligible for benefits previously only afforded to opposite-sex spouses, such as Social Security benefits, tax exemptions, and COBRA health insurance continuation. However, the full implications are unclear and additional IRS guidance is needed on how employers should update sponsored benefit plans to comply with the ruling.