State Tax ID Registration · United StatesEvery state you sell into or hire in can mean another registration. We work out which ones you actually need.
We map your sales, staff and inventory against each state’s rules, then register you for sales tax, payroll withholding and unemployment insurance where it is required, and not where it isn’t.
Business & Incorporation
At a glance
- Authorities
- State departments of revenue (names vary by state) · State workforce or labor agencies · Streamlined Sales Tax Governing Board (SSTRS)
- Forms & references
- Sales tax permitState withholding accountState unemployment insurance accountSSTRS registration
- Registered with
- Each state’s revenue department and workforce agency
- Common accounts
- Sales tax permit, withholding, unemployment insurance
- Triggered by
- Nexus in the state, or employees working there
- Cost
- Often free; some states charge a fee or ask for a security deposit
Overview
What it is, and why it matters.
An EIN covers you federally, but states run their own tax systems and issue their own account numbers. Depending on what you do and where, a business may need a sales tax permit, a state withholding account and a state unemployment insurance account, and in some states a separate income or franchise tax account.
What you need depends on nexus and employees. Sales tax registration follows physical presence or economic nexus, which in most states means passing a sales threshold, most commonly $100,000 a year at the time of writing. Payroll registrations follow where employees physically work, so a remote hire in a new state usually means two new accounts.
Registering too early has a cost as well. Once registered, you must file returns on the schedule the state assigns, even when there is nothing to report, and each state has its own process for closing an account.
Who needs it
Who typically needs it.
- 01
Online sellers crossing economic nexus
E-commerce businesses whose sales into a state have passed its threshold, including sellers based outside the US.
- 02
Businesses hiring their first employees
Employers who need state withholding and unemployment insurance accounts before the first payroll.
- 03
Companies with remote staff in several states
Each state where an employee works generally needs its own payroll registrations.
- 04
Businesses opening a location or storing inventory
An office, shop, warehouse or third-party fulfillment center can create physical nexus.
- 05
Telecom and VoIP providers
Providers that must register for state communications taxes and 911 fees in the states they serve.
When you need it
The moments that usually trigger it.
- Your sales into a state have passed, or are about to pass, its economic nexus threshold.
- You are running payroll for the first time.
- You have hired someone who works from a state where you have no accounts.
- Your inventory is now stored in a fulfillment center in another state.
- A state revenue department has sent you a nexus questionnaire or notice.
- You are opening an office, shop or warehouse in a new state.
Scope
Exactly what we handle.
Our engagement letter lists these specifically, so you know what is included before any work begins.
- 01
Reviewing where you have physical or economic nexus, and where you don’t
- 02
Checking whether your products or services are taxable in each state
- 03
Registering for sales and use tax permits directly with each state or through SSTRS
- 04
Setting up state withholding and unemployment insurance accounts for payroll
- 05
Recording each account number, filing frequency and due date in your compliance calendar
- 06
Giving your payroll provider the state account numbers and rates it needs
- 07
Closing accounts properly when you no longer have nexus or employees in a state
The process
How it runs, step by step.
Timings depend on the authority and on how quickly documents come together. We tell you what’s typical for your case at the start.
Start with a conversationNexus and payroll review
We look at sales by state, where inventory is stored, where staff work and what you sell, and list the registrations each state requires.
Agree the plan
You receive a short summary of the states to register in now, the states to watch and the ones you can leave alone, with the reasons.
Register
We submit each application with the state, or through SSTRS for member states, using your EIN and company details.
Set up filing
When account numbers and filing frequencies arrive, we add them to your calendar and connect them to your sales tax or payroll process.
Monitor
We recheck thresholds as sales grow, so new registrations happen when they are due rather than after the fact.
What we’ll need
The information to have ready.
A typical checklist. After the first conversation we send a version specific to your situation, so you don’t gather anything you don’t need.
Business details
- EIN and formation documents
- Legal and trade names, and business addresses
- Names, addresses and identification details of owners and officers
- Description of the products or services you sell
For sales tax
- Sales by state for the current and previous calendar year
- Locations of offices, staff and inventory
- Marketplaces you sell through
- The date you first passed each state’s threshold
For payroll
- Date of first wages in each state
- Number of employees and where each one works
- Payroll provider details, if you use one
Please don’t email passports or bank statements. Once we’ve spoken, you’ll get access to a secure upload.
Common mistakes
Where this usually goes wrong.
The problems we are most often asked to fix, and what they tend to cost.
- Mistake 01
Collecting sales tax without a permit
Many states prohibit charging sales tax before you are registered, and any tax you have collected still has to be paid over.
- Mistake 02
Registering everywhere just in case
Every registration brings returns to file, often monthly or quarterly, even when there is nothing to report. Late zero returns can still attract penalties.
- Mistake 03
Ignoring marketplace sales when measuring the threshold
Some states count sales made through marketplace facilitators such as Amazon toward your threshold and some don’t, so the same figures can mean nexus in one state and not another.
- Mistake 04
Running payroll for a remote employee in the wrong state
Withholding and unemployment insurance generally follow where the employee works, not where the company is based. Getting it wrong means corrections in two states.
- Mistake 05
Waiting for a notice before registering
Sales tax that should have been collected for past periods usually has to be paid by the business itself, with interest and penalties. Registering promptly, or using a voluntary disclosure agreement for past periods, limits that exposure.
Worth knowing
The limits, stated upfront.
Each state issues accounts on its own timetable, and some ask follow-up questions or require a security deposit before issuing a permit.
Some state online systems expect an officer to have an SSN. For owners abroad, registration may need a paper application and take longer.
City and county business licenses and local tax registrations vary widely. We flag the ones we know apply, but local requirements should be confirmed with the city or county.
Registration is the first step. Filing the sales tax returns that follow is covered by our Sales & Use Tax service.
Questions
State Tax ID Registration: frequently asked.
If yours isn’t here, ask us directly. We’ll answer in plain terms.
Ask a questionWhat is a state tax ID?
It’s the account number a state issues when you register for one of its taxes, such as a sales tax permit or an employer withholding account. Unlike an EIN, there is no single state tax ID: you may have several accounts in one state and none in another.
Do I need to register for sales tax in every state I sell to?
No. You register only in states where you have nexus and sell taxable goods or services. Delaware, Montana, New Hampshire and Oregon have no general sales tax, and Alaska has no statewide one, although Alaska’s local sales taxes can apply to remote sellers.
Do my Amazon sales count?
Marketplace facilitators such as Amazon generally collect and remit sales tax on the sales they process, but some states still count those sales toward your own economic nexus threshold. If you also sell through your own site, the combined figure can take you over the line.
I have one remote employee in another state. Do I need to register there?
Usually, yes. Withholding and unemployment insurance generally follow where the employee physically works, so you will typically need both accounts in that state. The employee’s presence can also create income or franchise tax nexus there.
Does it cost anything to register?
Many states register businesses for sales tax free of charge, but some charge a fee and some ask for a security deposit or bond, particularly from new businesses. Any state charge is separate from our fee for handling the registration.
How long does registration take?
Some states issue an account number online within days; others take a few weeks, especially if they have questions or the application has to go on paper. We tell you what to expect for each state before we file.
Related
Often needed alongside this.
The equivalent in our other countries
Speak with a consultant
Talk to us about state Tax ID Registration.
Pick the closest match and we’ll take it from there. You’ll get a written scope and fee before any work begins.
Or use our three-step guide, or email hello@fiscorra.com
