Sales Tax & Business Admin
U.S. sales tax is state and local, not one national rule. Whether you charge tax can depend on where you work, what you sell, whether labor is taxable, and whether the customer is residential, commercial, or exempt.
Use these guides to understand what to ask your accountant or state revenue department. For federal estimated tax, start with IRS Form 1040-ES guidance and adjust as your income changes.
Business records every contractor should keep
The quotes, invoices, receipts, licenses, and customer records worth keeping organized.
Quarterly estimated taxes for self-employed contractors
How to think about federal estimated tax payments and where to verify the details.
Sales tax by state: what contractors should check
U.S. sales tax depends on your state, locality, service type, and customer.