Other users indicate Amended Return Calc has same error for their 1040-R's: When I report my missing 1040-I amount (~$1,000) in the 1040-X return, the amount of my income is increased by double my entry (~$2,000)! Of course, the calculations then double the amount of the tax that I owe for the addition! I've tested this numerous times without saving. Your amended return program clearly has a bug! Call or email me if you can't replicate it, and I will send you a pdf of the printed copy of the errored calculation. My amended return is simple. Users with large amendments could have large tax mistakes/costs that could be costly to them, and you.
