What was the standard deduction in 2021 for married filing separately? $13,900 or $12,550? Turbo Tax gave me the $13,900, but IRS is saying $12,550 and wants more money?

Check your date of birth.

For 2021 the standard deduction amounts are:

Single 12,550 + 1,700 for 65 and over or blind (14,250)

HOH 18,800 + 1,700 for 65 and over or blind

Joint 25,100 + 1,350 for each 65 and over or blind

Married filing Separate 12,550 + 1,350 for 65 and over or blind

@cathyb510 - agreed - check the date of birth you entered into Turbo Tax - the standard deduction is automated based on the DOB