Reminder: If you are married on December 31, you are married for the entire year. If you are thinking of getting married in 2020, you might want to rethink that plan for the same reasons that apply in a divorce. The IRS could make advantageous savings available to you if you get married on or before December 31, 2019.
You should take time to calculate the numbers in your tax return both ways to know the tax benefits and pitfalls for your particular situation. But a quick trip to the courthouse may save you thousands of dollars.