About and contact

What it does

You enter your expected profit and the tool shows how much to pay for each IRS due date. If your income arrives in lumps or seasons, it can use the IRS annualized income installment method, so the payments follow when you are paid. It is a planning aid only. Read the Disclaimer.

How we keep the numbers right

Tax figures come from IRS and Social Security Administration publications, listed with their dates on the How it works page. We re-check them when they change.

Who runs it

Electric Flock Ltd, a company registered in England and Wales, company number 16375990.
Registered office: 27 Old Gloucester Street, London WC1N 3AX, United Kingdom.

We are not affiliated with the Internal Revenue Service or any government agency, and we do not give tax advice.

Contact

A contact email address is being set up. Until it is live, you can write to us by post at the registered office below.

Questions about your own taxes are best answered by a qualified tax professional or by the IRS at irs.gov.

More: Terms of Use, Privacy Policy, Cookie Policy, Accessibility Statement.