If you are not a S corp and you file schedule C in your personal return for it then you just use 1040ES estimates. Is there anything on the 720 you need to pay? Excise tax is like sales tax you collect.
<a rel="nofollow" target="_blank" href="
https://www.irs.gov/pub/irs-pdf/f720.pdf">https://www.irs.gov/pub/irs-pdf/f720.pdf</a>
Here is the 1040ES
<a rel="nofollow" target="_blank" href="
https://www.irs.gov/pub/irs-pdf/f1040es.pdf">https://www.irs.gov/pub/irs-pdf/f1040es.pdf</a>
