You made this income in what tax year? 2019? You will receive a 1099Misc for 2019 in January 2020 that you will have to put on your 2019 tax return. If you expect to owe over $1000 when you file, it would be a good idea to pay some estimated tax now. Otherwise, pay at tax filing time. We do not know what other income you had in 2019 so we don't know if you should file estimated tax.
Try the taxcaster tool:
https://turbotax.intuit.com/tax-tools/calculators/taxcaster/
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**