If your previous sales tax provider filed some of your returns through SST (the Streamlined Sales Tax program), those accounts need to be moved to regular state accounts before Zamp can file for you. This article explains what we will need from you and what to expect along the way.
The process usually takes a few weeks, because many states send codes or letters by mail. Every business is a little different, so your onboarding specialist will guide you through anything specific to your account.
Before you start: what to have ready
Gathering these items up front makes the switch much faster.
Your SST ID. This is the ID your previous provider used to file for you through SST. Zamp needs it for every state we move. The SST begins with S followed by 8 numbers.
Your legal business name and FEIN (Federal Employer Identification Number).
Any existing state logins for the states being moved, if you have them.
Any registration letters or documents from the states. Look for registration IDs, letter IDs, PINs, or access codes. These would have been mailed to you upon the initial completed registration.
The email address used when your state accounts were set up. States often send important information to this address, so you will need to know which inbox to check.
Recent sales tax returns for SST states, or (optionally) access to your previous provider's account (see step 3 below)
Don't have logins? That's okay, we can work with you to create new usernames and passwords.
How the switch works, step by step
Let us know which of your states were filed through SST.
Send us the items from the checklist above. The most important one is your SST ID.
Send us your recent sales tax returns. Please share copies of your last few returns for your SST states. These states ask for past payment or return details before we can set up a new account (Arkansas, Georgia, Indiana, Iowa, Kentucky, New Jersey, and South Dakota). Your previous provider can usually give you copies, or you may be able to download them from their platform.
Optional: Instead of sending returns, you can add your Zamp state portal email address (it ends in @zamp-customer.com) as a user on your previous provider's account. This lets us look up your past returns ourselves. It's entirely your choice, and sending copies of your returns works just as well.Forward state emails to Zamp. Forward [email protected] any correspondence you receive from an SST state.
Contact each SST state. Email each state and ask for your regular (non-SST) registration ID. Please cc [email protected] on every email so we can follow along and pick up the state's reply. You'll find each state's email address in the table below. You don't need to email states that require a new registration, and a few states don't have a public email, so the table lists their phone number instead. You can use this message:
Subject: Non-SST Registration ID Request – [Your Company Name]
[Your Company Name] has previously been filing through SST. We will be filing outside of SST moving forward. Can you please provide our non-SST registration ID?
Legal business name: [Legal Business Name] SST ID: [SST ID] FEIN: [FEIN]
Thank you,
Some states need more than the registration ID. When you contact these states, add the extra item to your request:Minnesota: a letter with your temporary password
Nebraska: your PIN (Nebraska handles this by phone)
Ohio: your letter ID
Oklahoma: your letter ID
South Dakota: your username and temporary password
Utah: your PIN
Washington: your letter ID
Wisconsin: your letter ID
Wyoming: your PIN
If a state doesn't reply to your email, the responsible party (the business owner or officer listed on the state account) will need to call the state and request the registration ID, plus any extra item listed above.Watch for mail and email from the states. Many states send a letter or code to the mailing or email address they have on file. When something arrives, please send it to us as soon as you can. See the state-by-state section below for what to expect.
Zamp sets up your state accounts. Once we have what each state needs, Zamp can create your online login and connect your sales tax account so we can file for you.
Cancel your SST registration, and request to keep your state accounts open. See the next section for the details and timing.
Cancelling SST (and keeping your state accounts open)
Your SST registration must be cancelled, but your individual state sales tax accounts must stay active. If the state accounts are closed by mistake, you may have to register again in those states.
Who cancels it? Your previous provider will usually cancel SST for you when you cancel your account with the previous provider. Be sure to tell them to keep your sales tax accounts active. If your provider doesn't cancel it, you or Zamp will need to (Zamp can do this for you with your written approval).
When should it end? The cancellation date should be the last day of the month before the first period Zamp files.
Example: Zamp files your July return in August. Your SST cancellation date would be June 30.
How to cancel:
Cancellation date within the next 60 days: Log in to the SST registration system at sstregister.org and cancel there. If you can't log in, try the "forgot password" link.
Cancellation date more than 60 days away: Email [email protected] with your cancellation date and the states you want cancelled.
Need help? Email [email protected] or call 405-779-7702.
Whichever way you cancel, ask that your state accounts stay active.
Please check with Zamp before cancelling. Please note, a few states won't allow setup until SST is cancelled.
What to expect in each state
Each state handles this a little differently. Use this table to know what might show up in your mail or inbox. If a state doesn't reply to your email, you may need to call the state, since many states will only share account details with the business owner.
State | State email(s) | What you may receive | What we may need from you |
Arkansas | An email with your registration ID | Forward the email to Zamp | |
Georgia | An email with your registration ID | Forward the email to Zamp | |
Indiana | A letter from the state, if requested | Recent return or payment info, or the letter | |
Iowa | Not needed (new registration) | An access code by mail | Send us the access code. A new registration is required |
Kansas | Nothing in most cases | Approval to re-register. A new registration is often required | |
Kentucky | A letter by mail | Send us the letter. A new registration is often required | |
Michigan | A letter by mail, only if verification fails | Send us the letter | |
Minnesota | An email with your registration ID and temporary password | Email [email protected] asking for this letter. Include your legal business name and FEIN | |
Nebraska | No public email. Call 800-742-7474 or 402-471-5729 | Your registration ID and PIN, given by phone | Call the Nebraska Department of Revenue and ask for your non-SST registration ID and PIN |
Nevada | No public email. Call 866-962-3707 | An access code, if needed | Owners without a U.S. SSN may need to call the state |
New Jersey | Nothing in most cases | Your last payment amount | |
North Carolina | No public email. Call 877-252-3052 | Nothing in most cases | Nothing, in most cases |
North Dakota | Not needed (new registration) | An authorization code by mail | Send us the code. A new registration is required |
Ohio | A letter with your letter ID | Send us the letter. The owner's SSN (or SIN for Canadian owners) | |
Oklahoma | A letter with your registration ID and letter ID | Forward the letter to Zamp | |
Rhode Island | Not needed (new registration) | A PIN letter by mail | Send us the PIN letter. A new registration is required |
South Dakota | Your registration ID, username, and temporary password | In your email, also ask for your username and temporary password | |
Tennessee | Not needed (new registration) | New registration documents | Approval to re-register. A new registration is required |
Utah | A letter by email with your registration ID and PIN | Forward the letter to Zamp | |
Vermont | An access code letter by mail | Send us the letter. Owners without a U.S. SSN may need to provide a passport | |
Washington | No public email. Use the Department of Revenue's online contact form | Your registration ID and letter ID | Forward them to Zamp |
West Virginia | Your registration ID | Forward it to Zamp | |
Wisconsin | Your registration ID and letter ID | Forward them to Zamp | |
Wyoming | Your registration ID and PIN | Forward them to Zamp |
About new registrations: Some states won't let us reuse your SST account and require a brand-new registration. When that happens, Zamp will ask for your approval and register you with the correct start date (the day after your SST cancellation date).
Common questions
Do I need to do anything differently with my sales or invoicing? No. This only changes how your returns are filed with each state.
Why do states mail letters instead of emailing? Many states mail access codes to the address on file for security. Mail can take one to two weeks, so please keep an eye out and send letters to us as soon as they arrive.
What if I get a letter and I'm not sure what it is? Send it to us anyway. We'd rather see something we don't need than miss something we do.
The business owner lives outside the U.S. and doesn't have an SSN. Is that a problem? Not usually, but some states (such as Nevada, Ohio, and Vermont) need an extra step. We may ask for a Canadian SIN, an ITIN, or a passport, or ask the owner to call the state.
Who do I contact with questions? Reach out to your Zamp onboarding specialist, or email [email protected].