If I'm retired what form do I use no job just a pension from previous employer and social security? Do I have to file im low income?

[joshmassie18]

This is for 2021

[DoninGA]

You may have to file if your taxable income from the pension and your taxable Social Security benefits is greater than the Standard Deduction for your filing status -

Standard deductions for 2021

Single - $12,550 add $1,700 if age 65 or older
Married Filing Separately - $12,550 add $1,350 if age 65 or older
Married Filing Jointly - $25,100 add $1,350 for each spouse age 65 or older
Head of Household - $18,800 add $1,700 if age 65 or older

Up to 85% of Social Security Retirement/Disability/Survivors benefits becomes taxable when all your other income plus 1/2 your social security reaches:

Married Filing Jointly - $32,000
Single or Head of Household - $25,000
Married Filing Separately - 0

[Critter-3]

EVERYBODY uses the form 1040 now no matter what your income comes from.   If your AGI will be $73K or less than you could use one of the IRS FREE FILE options here :  https://www.irs.gov/filing/free-file-do-your-federal-taxes-for-free

[rjs]

You can use the calculator at the following link on the IRS web site to see if you have to file a tax return.

Do I Need to File a Tax Return?