is it advantageous to file married filing separately?
<answer> No <context> In most cases, it's more advantageous -- and less expensive -- for married couples to file joint income tax returns than filing separately.For all you may have heard or read about the marriage penalty, tax law changes have minimized this former negative condition.arried Filing Jointly Advantages. If you or your spouse earn vastly higher income than the other, you'll enjoy tax advantages filing jointly, as the tax rates effectively average your total household income. Should you both earn high -- or roughly equal -- compensation, this advantage is minimized.