Are there other tax forms that are typical to get from a client? (law.stackexchange.com)
This is required for «all enrolled agents, as well as all tax return preparers who are compensated for preparing, or assisting in the preparation of, all or substantially all of any U.S. federal tax return, claim for refund, or other tax form submitted to the IRS,» with a few exceptions listed by the IRS. (policygenius.com)
Form 1040 - ES is similar to a lot of other tax forms in that you fill out various fields, subtract and add a few of them up, and come up with your owed tax amount. (policygenius.com)