You can get them from the IRS site:
https://www.irs.gov/pub/irs-pdf/f1040es.pdf
You could also make your payments directly on the IRS site if you want to:
https://www.irs.gov/payments/direct-pay
https://ttlc.intuit.com/questions/1901110-do-i-need-to-make-estimated-tax-payments-to-the-irs
**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.**
