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US Sales Tax

compliance & automation
Tech when it counts.
Human where it matters.
Request a Free Risk Assessment

US Sales Tax

compliance & automation

US Sales Tax

compliance & automation
Tech when it counts. Human where it matters.
Request a Free Risk Assessment
Tech when it counts.
Human where it matters.
Request a Free Risk Assessment
Request a Free Risk Assessment
Managing US sales tax compliance.

Managing US sales tax across multiple states requires careful oversight. Different jurisdictions apply different tax rates, nexus thresholds and reporting requirements. Our solutions help businesses manage multi-state obligations through sales tax compliance automation, state nexus compliance solutions, and a scalable US sales tax API that supports accurate calculations and filings across jurisdictions.

Sales tax compliance at scale.
Monitoring

nexus obligations, state by state

Automating

compliance for businesses in over 14 000 jurisdictions

Over 10 million

sales tax calculations processed every month

What we do.

Monitoring

Track economic and physical nexus obligations across states in real time. Our state nexus compliance solutions help identify where sales tax registrations are required.

Calculation

Calculate state and local sales tax by location and product classification in real time using our US sales tax API and automated tax engine.

Filing

Prepare and submit accurate filings and remittances to tax authorities through sales tax compliance automation across multiple US jurisdictions.

Management

Manage filings, exemption certificates and compliance records in one place with sales tax compliance automation that supports audit-ready reporting.

What working with us looks like.
You get a dedicated Account Manager who supports you with day-to-day queries and ongoing compliance oversight.
Your Account Manager communicates directly with tax authorities on your behalf, handling notices, queries, and follow-ups when needed.
A dedicated onboarding team guides you through the full setup process, ensuring a smooth and structured implementation.
Our registration team manages new state registrations or takes over existing ones, handling the process end-to-end.
With a centralised view of your global filings, you can track status, deadlines, and submissions in real time, supported by a dedicated account manager who ensures accuracy and compliance.
Where nexus creates tax obligations.

Selling across state lines can quickly trigger sales tax nexus. Once it does, businesses may need to register, collect and file sales tax in that state. Our state nexus compliance solutions help businesses monitor nexus exposure and stay compliant across jurisdictions.

Explore State Sales Tax Rules
Navigating multi-state sales tax.
The Challenge Our Solution
Tracking where sales tax nexus applies across multiple states Our state nexus compliance solutions monitor economic and physical nexus thresholds across jurisdictions.
Thousands of tax rates across states and local jurisdictions Our US sales tax API calculates accurate tax rates in real time based on location and product type.
Managing filings and deadlines across multiple states Sales tax compliance automation prepares and submits filings across jurisdictions.
Keeping up with changing sales tax rules Our specialists monitor regulatory changes to support compliant multi-state reporting.

 

Tracking where sales tax nexus applies across multiple statesOur state nexus compliance solutions monitor economic and physical nexus thresholds across jurisdictions.
Thousands of tax rates across states and local jurisdictionsOur US sales tax API calculates accurate tax rates in real time based on location and product type.
Managing filings and deadlines across multiple statesSales tax compliance automation prepares and submits filings across jurisdictions.
Keeping up with changing sales tax rulesOur specialists monitor regulatory changes to support compliant multi-state reporting.
The cost of getting sales tax wrong.
  • Financial penalties: Incorrect tax calculations, missed filings or failure to register can result in fines and interest charges.
  • Audit Exposure: Unmonitored nexus thresholds or inaccurate reporting can increase the likelihood of multi-state audits.
  • Operational exposure: Sales tax issues can delay expansion into new states or interrupt ongoing business operations.
  • Revenue loss: Incorrect tax calculations can lead to under-collection, over-collection or costly reconciliation work.
Talk to a sales tax expert
Frequently asked questions.

Sales tax compliance services help businesses manage their sales tax obligations across different US states. This typically includes identifying where tax must be collected, calculating the correct sales tax on transactions, and preparing and submitting tax filings to state authorities.

Businesses selling goods or services to customers in multiple US states often need sales tax compliance support. This includes ecommerce companies, SaaS providers and international businesses entering the US market who must manage tax obligations across different jurisdictions.

You may need state nexus compliance solutions when your business creates a taxable connection, or “nexus”, with a US state. This can happen through employees, inventory, offices or by exceeding economic sales thresholds in that state.

Sales tax compliance services reduce risk by helping businesses monitor nexus thresholds, apply accurate tax rates and submit filings on time. This helps avoid penalties, reduces audit exposure and ensures businesses remain compliant across jurisdictions.

Sales tax compliance automation typically includes automated tax calculations, nexus monitoring, return preparation and reporting across multiple states. Automation helps businesses manage sales tax obligations efficiently as regulations change.

Yes. Sales tax compliance automation is designed to manage sales tax obligations across multiple states and jurisdictions. Automated systems apply the correct tax rates and help manage filings across different locations.

Yes. A US sales tax API can integrate with ecommerce platforms, checkout systems and ERP software to automatically calculate the correct sales tax during transactions and support accurate reporting.

Their words. Our results.
Their words.
Our results.
“
Our experience with VAT IT has been amazing, from the onboarding all the way through to the monthly submissions. We moved from another service provider to VAT IT and are very happy!
GOODMAN GALLERY 
Accountant
“
Our company, ExecuJet Aviation , has been working with VAT IT since 2002. I would like to highlight VAT IT’s continuous success in claiming back the VAT on our France expenditure. Their expertise, transparency and customer-centric approach make them a valuable partner for any business.    
Execujet Aviation
Finance Director
“
G2 Travel , has been working with VAT IT for the past year. We are now able to file tax reclaims in various jurisdictions, thanks to their expertise. This instance not only met our objectives but also showcased VAT its ability to deliver results efficiently and effectively. 
G2 Travel
Director
“
Embraer, has been working with VAT IT for the past 12 years.  Our problem has been working with 10 companies that have 10 different accounting processes. Different staffing in various jurisdictions. VAT IT has been able to work with all our complications and keep us on task with all the deadlines.    
Embraer 
Tax Director
“
Annely Juda Fine Art , has been working with VAT IT/Cash Back since 2006. From my experience, I would say that they are very professional, they give clear instructions on what information they require and always respond to any questions or queries very promptly.   I would be happy to recommend their services.
Annely Juda Fine Art
Finance Controller
“
Hi Fly , has been working with VAT IT for the past 5 years. Before working with VAT IT, we were not able to claim our paid VAT on different country and regulations. In particular, a claim with the Portuguese Authorities that contained a very large amount of documents and a very short deadline, that was fully processed and submitted on time.    
HI FLY
C-level
“
Our experience with VAT IT has been amazing, from the onboarding all the way through to the monthly submissions. We moved from another service provider to VAT IT and are very happy!
GOODMAN GALLERY 
Accountant
“
Our company, ExecuJet Aviation , has been working with VAT IT since 2002. I would like to highlight VAT IT’s continuous success in claiming back the VAT on our France expenditure. Their expertise, transparency and customer-centric approach make them a valuable partner for any business.    
Execujet Aviation
Finance Director
“
G2 Travel , has been working with VAT IT for the past year. We are now able to file tax reclaims in various jurisdictions, thanks to their expertise. This instance not only met our objectives but also showcased VAT its ability to deliver results efficiently and effectively. 
G2 Travel
Director
“
Embraer, has been working with VAT IT for the past 12 years.  Our problem has been working with 10 companies that have 10 different accounting processes. Different staffing in various jurisdictions. VAT IT has been able to work with all our complications and keep us on task with all the deadlines.    
Embraer 
Tax Director
“
Annely Juda Fine Art , has been working with VAT IT/Cash Back since 2006. From my experience, I would say that they are very professional, they give clear instructions on what information they require and always respond to any questions or queries very promptly.   I would be happy to recommend their services.
Annely Juda Fine Art
Finance Controller
“
Hi Fly , has been working with VAT IT for the past 5 years. Before working with VAT IT, we were not able to claim our paid VAT on different country and regulations. In particular, a claim with the Portuguese Authorities that contained a very large amount of documents and a very short deadline, that was fully processed and submitted on time.    
HI FLY
C-level

Execujet Aviation

Our company, ExecuJet Aviation , has been working with VAT IT since 2002. I would like to highlight VAT IT’s continuous success in claiming back the VAT on our France expenditure. Their expertise, transparency and customer-centric approach make them a valuable partner for any business.

Execujet Aviation

Finance Director

GOODMAN GALLERY

Our experience with VAT IT has been amazing, from the onboarding all the way through to the monthly submissions. We moved from another service provider to VAT IT and are very happy!

GOODMAN GALLERY

Accountant

Embraer

“ Embraer, has been working with VAT IT for the past 12 years. Our problem has been working with 10 companies that have 10 different accounting processes. Different staffing in various jurisdictions. VAT IT has been able to work with all our complications and keep us on task with all the deadlines.

Embraer

Tax Director

Annely Juda Fine Art

Annely Juda Fine Art , has been working with VAT IT/Cash Back since 2006. From my experience, I would say that they are very professional, they give clear instructions on what information they require and always respond to any questions or queries very promptly. I would be happy to recommend their services.

Annely Juda Fine Art

Finance Controller

HI FLY

Hi Fly , has been working with VAT IT for the past 5 years. Before working with VAT IT, we were not able to claim our paid VAT on different country and regulations. In particular, a claim with the Portuguese Authorities that contained a very large amount of documents and a very short deadline, that was fully processed and submitted on time.

HI FLY

C-level

G2 Travel

G2 Travel , has been working with VAT IT for the past year. We are now able to file tax reclaims in various jurisdictions, thanks to their expertise. This instance not only met our objectives but also showcased VAT its ability to deliver results efficiently and effectively.

G2 Travel

Director

Explore our latest blogs.
Explore our
latest blogs.

Your go-to hub for news, thought leadership and practical guides across VAT reclaim, VAT and sales tax compliance, and e-invoicing.

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May
28
Upcoming Webinar
WEBINAR
A Technical Guide to VAT Recovery
If your organisation is paying VAT on international invoices and writing it off as a cost of doing business, this webinar will show you exactly how to claim it back, and how much you could be leaving on the table.
  • May 28, 2026
  • 11:00 (EST)
Register Now
May
12
WEBINAR
E-Invoicing: What Accounts Payable Teams Need to Know

This webinar explains how US businesses can identify and recover foreign VAT, breaking down key concepts like reciprocity and showing where refund opportunities are often missed.

  • May 12, 2026
  • 10:00
Register Now
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