New State Sales Tax Registration Checklist
A step by step checklist for registering for sales tax in a new state and switching collection on in every system that charges tax.
Reviewed for 2026, updated September 8, 2026.
Registering in a new state is more paperwork than mystery, but the mistakes that cost sellers money almost never happen on the registration form itself. They happen before it, when nobody wrote down why nexus exists or when it started, and after it, when the permit arrives and collection never gets turned on in the checkout, the invoicing tool, or the point of sale device. This checklist walks the whole path in order: confirm the reason you have nexus, gather what the state revenue department will ask for, register, record the filing schedule, and then check every system that touches a sale.
Print it or copy it into your task tracker once per state. Most registrations take a single afternoon if the information is ready, and the items at the end are the ones that keep you from filing a first return that does not match what you collected. If you are registering because you found past exposure, work through the voluntary disclosure question first, since most registration forms ask when nexus began and that answer is hard to change later.
- Confirm why you have nexus in this state: physical presence, an economic threshold crossed, or both, and write down the date it started.
- Record which sales the state counts toward its threshold (gross, retail, or taxable, and whether marketplace sales are included) and keep the calculation you used.
- Decide whether any past exposure should go through a voluntary disclosure agreement before you submit a registration that asks when nexus began.
- Gather your federal EIN, legal business name, any trade names, physical address, mailing address, and the NAICS code you use on other filings.
- List the owners or officers the state will ask about, with titles, contact details, and any identification the portal requires from them.
- Estimate your expected monthly taxable sales in the state so you can answer the filing frequency question honestly rather than guessing.
- Note the date you first sold into the state and the date you expect your first taxable sale under the new registration.
- Create or log into the state revenue department portal using a shared team account entry, not one person's private login.
- Complete the registration and save a PDF of the confirmation page, the permit or account number, and any letter the state mails you.
- Record the assigned filing frequency, the first due date, and any prepayment requirement in your filing calendar the same day.
- Check whether the state requires a separate local or home rule registration for cities or counties, and handle it before you move on.
- Turn on collection for this state in your storefront checkout and confirm the effective date matches your registration date.
- Turn on collection in your invoicing tool and any point of sale device, then place a small test order or draft invoice to confirm tax appears.
- Confirm your tax engine is applying the sourcing rule the state uses (destination or origin) and pulling local rates where they apply.
- Review product taxability settings for this state, including software, digital goods, shipping charges, and services you sell.
- Set up a process for collecting and storing resale or exemption certificates from wholesale customers in the state.
- Add the state to your nexus tracking worksheet, mark it as registered, and note the effective date and account number.
- Tell your accountant or filing service the account number, filing frequency, first due date, and how they can access the portal.
- Reconcile the first month of collected tax against your sales report by state before the first return is due.
- Schedule a review date after the first due date to confirm the return was filed, the payment cleared, and the portal shows no notices.
https://shoptaxie.com/templates/new-state-registration-checklist/Use it in your business, share it with your team, or link to it from your own site.
Also from ShopTaxie
- State by State Nexus Tracking Worksheet: A tracking sheet for logging each state's nexus rule, your direct and marketplace sales against it, and the next action you owe that state.
- Free calculators