Do you pay taxes on a IRA at withdrawal or at end of tax year?

This would be your choice and depending on your filing status and other information and the amount taxable amount of the distribution and your age you will have make this decision your self because you are the only one that has knows all of the information that you will need to help you decide how you want to do this.

You are the only one that has all of the necessary information that will have to be reported on your income tax return for the year in order to do the calculation for the numbers that you are looking for.

If you would like to do some estimated tax calculations you would need to go to the IRS.gov website and use the search box for 1040ES go to page 7 for the estimated tax worksheet and page 8 has the tax rate schedules.

You can find the estimated tax worksheet and instructions by using the below enclosed Related link

You are welcome to try any of the calculators for some estimates to get an idea of what things may look like after using the correct IRS forms and compare the numbers.

Click on the below Related Link