A Sales Tax License (also called a Sales Tax Permit, Seller’s Permit, or Resale Certificate) authorizes a business to collect, report, and remit sales tax to the appropriate U.S. state authority. If your business has sales tax nexus—such as selling products, taxable services, or operating online in certain states—registration is mandatory. Failure to register can lead to penalties, interest, audits, and forced back-tax assessments. Our Sales Tax Registration Service handles the entire process end-to-end. We determine where you must register, prepare and file applications accurately, and ensure your business is fully authorized to collect sales tax without compliance risk.
We determine where your business is required to register based on physical and economic nexus rules.
We prepare and submit accurate sales tax registration applications with the appropriate state authority.
You receive your sales tax license/certificate and guidance on collection, filing frequency, and next steps.
Who needs a sales tax license?
Any business selling taxable goods or services with sales tax nexus in a U.S. state is required to register.
What creates sales tax nexus?
Nexus can be created through physical presence, employees, inventory, or economic nexus (sales volume or transaction thresholds).
Is a sales tax license the same as an EIN?
No. An EIN is a federal tax ID. A sales tax license is a state-level authorization to collect sales tax.
Do online businesses need sales tax registration?
Yes. Most states enforce economic nexus laws that apply to e-commerce and digital sellers.
What happens if I don’t register but should have?
You may face back taxes, penalties, interest, and audits. Voluntary compliance options may be available.
If you’re not sure which plan fits your situation, start with the structured intake below. We’ll review your details and guide you to the cleanest compliance path.