[dewilson58]

Originally Posted by retiredguy123

If you use TurboTax to prepare your taxes, the software will calculate the 4 quarterly payments you need to make to avoid any underpayment tax penalty for the next year, with the payments due on April 15, June 15, September 15, and January 15. As long as you make those payments on time, it doesn't matter how much your income increases, you will not owe a penalty. I would rather make the estimated tax payments myself than to allow another entity to do it for me. If I make an overpayment, I just apply it to the next year's return. I never get a refund.

Rates are so low, I always under pay.