What is the federal tax liability for a couple in their 70s with a total annual income of $21500 in social security?
Instead of asking here, wouldn't it be easier to look at the table in the tax forms and find out? Or look online on the IRS site?
0. Your local library may have people who can help you fill out your tax forms for free.
Under the new tax law their standard deduction is $24,000, which more than offsets their income leaving them with ZERO tax liability.