<prompt> Human: I know that that these companies normally mail out 1099...but in the case you didnt get it for what and you arent aware that you should have gotten one...can you call IRS to verify all your 1099 info?  <response>: Do your best at estimating your gross income. If you miss some, they will send you a letter with the discrepancy and ask you to pay the difference in taxes you missed. Its happened to me before, theres nothing scary about it - a letter comes a few months after you file your taxes, you see the mistake you made, and you write the IRS a check for the extra. You might owe a couple dollars in fees, but its definitely not going to be a huge penalty. In the future, try keeping better tabs of your self employment income so you dont need to wait for the companies to send out 1099s. As long as what you report in gross income is equal to or more than the total 1099s the IRS gets, youre in the clear. I never wait for all my clients to send me those forms, I just take a look at my accounting software to give me the total. 