My wife is the executor of her mother's estate. In 2013 took her executor's fee from the estate account. It was not reported to the IRS and we didn't receive any W2 or 1099.

I completed and e-filed our taxes and I totally forgot to report this income. My understanding is that I should have reported it on line 21 of the 1040 as other income.

Now do I need to file an amendment? Or can we just return the money back into the estate account and try again for 2014? Or can we report it as a principal distribution so that it's not taxable since we have not trust taxes yet (although the check says "executor fees" on the memo line)?