taxable amount

[calixtoemilio]

In 4 years, age 66/10, my retirement is $3,100 to total $37,200 a year. Assumption: 15,000 withdrawn from 401k, to total $52,200 a year, $8,200 above the $44,000 threshold for couples and hence taxed 85% of my tax income.

does it mean my taxable amount is $37,200*.85 + $15,000 = $46,620? is that $37,200*.15 = $5,580 excluded from my taxable income?

is there a similar consideration for IRA, 401k retirement plans?

[HirschCPA]

From the description it looks like you are asking abut how much of your social security income will be taxed.    This link will give you a little more detail regarding how your social security is taxed (https://www.ssa.gov/benefits/retirement/planner/taxes.html)  

Regarding your IRA or 401K, this depends on a couple items:

- For an IRA or 401K, there is no "split" like on Social Security.

- Is it a Roth IRA / 401K?

- Is there a cost basis (sometimes people contribute to an IRA and it is not deductible.  You would have filled out a Form 8606 on your tax return).  

[rschule1]

Hi There:

Turbo Tax has a great App called TaxCaster which can assist with such calculations. Simply go online to TaxCaster and enter information as needed.