This bill matters because while the Supreme Court has ruled that same-sex marriage is legal and that same-sex couples are entitled to equal federal benefits, the actual text of the Internal Revenue Code has not been fully updated to reflect this. Many provisions still use traditional gendered terms that could, in theory, create confusion or be used to challenge equal application of tax laws.

If this bill becomes law, it would formally align the written tax code with existing legal precedents, ensuring that all married couples receive consistent tax treatment without question. If it does not become law, the existing gendered language would remain, potentially leaving room for misinterpretation or making the tax code less inclusive, even if current practice generally treats all married couples equally.