Thanks. Now that I know you have TurboTax Desktop, I'd suggest saving a copy of the .tax file after filing. Then I'd suggest, to document the transaction, re-input the sale of home. Most times, when I notice a miscalculation in a return for myself, it's because of my input error. Well done on catching the gain on the sale in the first place. Use the info in the answer to try again with fresh eyes and new knowledge....after you e-file. While there are known issues with TurboTax from time to time, most at this time of the season are either resolved or documented. The software is 99.9999% bug-free. This would be after taking into account thousands of calculations and millions of permutations in tax situations and changes in the tax code a mere 3 weeks ago. Good Luck! and thanks again.
