Yes you should. Will it be on your W2 or will he give you a 1099 for it? Here are the blank Estimates and instructions (the actual 1040ES forms are at the very bottom so scroll way down)
http://www.irs.gov/pub/irs-pdf/f1040es.pdf
Or You can pay directly on the IRS website https://www.irs.gov/payments
Be sure to pick the right kind of payment and year.....2022 Estimate
