The payer's EIN would be OnlyFans info. If you don't receive a 1099-NEC, you can still enter your income into TurboTax by following these steps:
- Open or continue your return.
- Go to Schedule C.
- Answer the general questions about your business (or select Edit at the work summary screen).
- At the Let’s enter income for… screen, select Other self-employed income.
Here is a TurboTax Help Article with more information on this topic.