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Personal Finance (Not Investing) • How much of my social security is federally taxable?

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... Am single. ...
New plan:
2024 int and dividends 30k
2024 Roth conversion 40k
2024 social security 40k
Wondering what amount of the 40 k social security income will be taxable.
Worksheets are available in the publication https://www.irs.gov/pub/irs-pdf/p915.pdf
This calculator may be of assistance:
https://thefinancebuff.com/social-secur ... lator.html
Referring to the IRS worksheet mentioned by Asyouwish, the Finance Buff says,
You can go through the 19 steps in the worksheet to calculate the amount of Social Security benefits that will be taxable but the worksheet isn’t the easiest to use. I made an online calculator that helps you calculate it much more quickly. It only needs three numbers plus your tax filing status. You’ll have your answer with the click of a button.
The calculator shows that $34,000 or 85% of the $40,000 SS benefit is taxable. But it doesn't show how that result is arrived at. You can see the steps of the calculation -- but easier than with the IRS worksheet -- in the table below:

Code:

Row                                    Col A     Col B   Formula in Column B  2                   Single = 1 / Joint = 2         1  3                  Social Security benefit    40,000  4      Other income (including tax exempt)    70,000  5  Relevant income (1/2 SS + Other income)    90,000  =B3/2+B4  6                            50% threshold    25,000  =CHOOSE(B2,25000,32000)  7                            85% threshold    34,000  =CHOOSE(B2,34000,44000)  8              Relevant income 50% taxable     9,000  =MAX(0,MIN(B5,B7)-B6)  9              Relevant income 85% taxable    56,000  =MAX(0,B5-B7) 10                         SS taxable @ 50%     4,500  =50%*MIN(B8,B3) 11                         SS taxable @ 85%    29,500  =MIN(85%*B9,85%*B3-B10) 12                         Total SS taxable    34,000  =B10+B11 13                  % of SS that is taxable     85.0%  =B12/B3
To use this calculator with other assumptions in cells B2:B4; Select All, Copy, and Paste [*] the following at cell A1 of an Excel sheet:

Code:

Col ACol BSingle = 1 / Joint = 21Social Security benefit40000Other income (including tax exempt)70000Relevant income (1/2 SS + Other income)=B3/2+B450% threshold=CHOOSE(B2,25000,32000)85% threshold=CHOOSE(B2,34000,44000)Relevant income 50% taxable=MAX(0,MIN(B5,B7)-B6)Relevant income 85% taxable=MAX(0,B5-B7)SS taxable @ 50%=50%*MIN(B8,B3)SS taxable @ 85%=MIN(85%*B9,85%*B3-B10)Total SS taxable=B10+B11% of SS that is taxable=B12/B3Other income to reach 50% threshold=B6-B3/2Other income to reach 85% threshold=B7-B3/2Other income to reach 85% of SS max=(0.425*B3+0.5*B6+0.35*B7)/0.85
* If you have trouble pasting, try "Paste Special" and "Text".

Statistics: Posted by #Cruncher — Tue Sep 03, 2024 12:07 am — Replies 10 — Views 804



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