calculate Form 2210AI, Line 1?: Adjusted Gross Income for each period | annualized income method

[davej]

If my only income during the year was social security, and I did a 4th quarter roth conversion and paid the tax for it during the 4th quarter, how do I show this on line 1 of 2210A1?  I want to avoid the penalty.

Thank-you !

[Mike9241 · Accepted solution]

Based on what you provided, none of the Social Security benefits would be taxable for the first 3 periods. Thus, AGI would be zero. TurboTax should automatically calculate the 4th period since that's the same as what's on your 1040-SR. Be sure to enter your tax payments in that section

[davej]

Thank-you !  More detail is TT says 70K of SS with 60K taxable. A 100K roth in 4th quarter with 13K tax paid then.

I just do not see where TT is recording that 13K 4th quarter date. I see the amount but how is the IRS being told I paid it then.  Maybe I should clear form 2210 and reload the data? I am in no rush and plan to do this every year for some time.  This is the first time as I just paid the penalty in the past.

[davej]

I think I found my mistake. I was entering my social security income and that was wrong.

Quarters 1 thru 3 should not have social security income and only the 4th quarter would show my entire 2025 income. Form 2210 does show the tax payment I made during the 4th quarter. No penaly on 1040.

[davej]

Adding on, the first 2 quarters had SS income less than the 44K federal tax limit for a couple. Zero income is reported on form 2210A1 for quarter 1  & 2. in line 1 part1.  The 3rd quarter had some income as the amount exceeded 44K.

This kept the penalty to zero.  I believe this is accurate and would appreciate a 2nd set of eyes.

The underpayment penalty section under TT  "other tax situations" is where this is found BTW

Google was very good helping me also.