<prompt> Human: My wife falls under the 25bracket for MFS I fall under 15bracket MFS. Jointly our income falls under 25. Should we file separate or jointly?  <response>: Im a tax accountant. Married filing separately is often the worst possible choice. It may knock your spouse into a higher bracket, but it makes you both ineligible for tons and tons of different credits and deductions. If youre using a reputable accountant, theres a 100 chance they can click a button in their software that will tell them which filing status is best. 