Do I have to file alabama tax form if my retirement is nontaxable and my social security was only 16776 dollars?

[MichaelL1 · Accepted solution]

Who must file an Alabama individual income tax return?

Full year residents whose filing status is “Single” must file if gross income for the year is at least $4,000. Full year residents whose filing status is “Married Filing Separate Return” must file if gross income for the year is at least $5,250.  Full year residents whose filing status is Head of Family” must file if gross income for the year is at least $7,700.  Those whose filing status is “Married Filing Joint Return” and whose gross income for the year is at least $10,500 must file an Alabama income tax return.

https://revenue.alabama.gov/individual-corporate/faq/individual-income-tax/

It refers to "gross income" and does not distinguish between taxable income, so based on instructions, you would need to file a AL. return.