I do a consulting assignment once a year, and I submit my bill in late December because I want the income in the following year and I know it usually takes the client 4-5 weeks.
This year accounts payable cut the check on December 27, but I have proof that it wasn't mailed until around January 17. When I got my 1099-NEC, they included the payments I got in January 2023 and also this check.
I've written to the company and asked them to reissue the 1099. Is it likely they will do that?
Suppose they don't. Do I just file my taxes using the actual amount constructively received in 2023 and if IRS says "Hey wait your 1099's don't match up" just send them a copy of the email I got from the client (AP sends the check to my client contact who mails it out, and I have an email from her showing that she wrote "1-17-24" on the top of the payment advice) and say "I didn't get this money in 2023; I'll pay tax on it in 2024? Is this asking for other trouble?