I'm just about done filing for this year, when I discovered that my tax software only partially supports K-1 forms - specifically, it doesn't support 1041s (Beneficiary of trust, trust has income that didn't have taxes paid on it). Sigh.
I'd rather not switch software at this point. Is it feasible to add the income in as 'other income' (which will subject it to my usual tax rate), pay what needs paying, and then after that's been accepted file a 1040X to adjust it to the correct amount (it's mostly interest income with a little bit of dividend income in ordinary and qualified, only a few thousand total)? (Submitting the income as normal income will ensure I overpay, rather than underpay, so I end up with a small refund later on rather than owing penalties for late payment.) Or will the return likely be rejected by the IRS for not specifically mentioning the 1041, thus requiring me to file with a different software?