Must I File A Tax Return If My 2018 Income Was Social Security Disability? I Had No Earned Income For 2018. James

[IreneS]

No - If your only income was from Social Security Disability and your filing status is single, you don't need to file a return (unless your annual income exceeds $25,000).

[blaescm]

What if my only income was SSDI, but I'm married and my spouse's income was Social Security (not disability) and part time work income? 

[xmasbaby0]

Assuming you are filing a joint return, then since your spouse had some earned income, you enter all of the Social Security disability income and regular SS benefits received on the return.  You should both have a SSA1099 for the SS you received.

You need to file a federal return if half your Social Security plus your other income is $25,000 when filing single or head of household, or $32,000 when filing married filing jointly, $0 if you are filing married filing separately.

[VolvoGirl]

Yes you might have to file a tax return.  You should file a Joint return for all the part time income and the Social Security and SSDI.  Doesn't matter if it's just SS or SSDI (they are taxed the same)

Up to 85% of Social Security 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