International Business

Need Help Understanding US Sales Tax?


The US has some of the most complex sales tax laws in the world. And for some business accustomed to working outside the US, each individual state can be seen s a country – each with its own rules and regulations.

With constantly evolving laws and different taxability and nexus rules per state, it's a lot for any business to keep up with. With TaxConnex, we help you:
  Determine where you have sales tax nexus
  Evaluate whether your products or services are subject to sales tax
  Estimate and mitigate prior period exposure
  Register your business for sales tax in each of the applicable states
  Manage the ongoing compliance process including return preparation and filing 
Determine Sales Tax


Understand where you have nexus and where your products/services are considered taxable.

Manage Ongoing



You get us the data, we handle the rest. We manage the filing and remittance of tax, state registrations, jurisdictional correspondence and more!

Dedicated Support




We align each of our clients with a dedicated practitioner to provide ongoing support. We focus on service first.

Common Sales Tax Challenges

Tracking Where You Have Nexus

Nexus is the connection you have between a state or local taxing jurisdiction. Without nexus, you have no sales tax obligation. Nexus is determined by either a physical or economic presence. Unless you have an office, employees or a warehouse in the US (although there are other forms of physical presence that should be considered), you’ll mainly be working with economic nexus.

Ever since economic nexus was enacted in 2018, states have been changing their thresholds and how to qualify. When you work with TaxConnex, we can help you identify where you have nexus and help you monitor your footprint going forward.

Learn More About Nexus


Understanding Taxability

Once you’ve determined nexus, you need to determine if your products and/or services are taxable. For some, this is an easy answer. But for many industries, the answer is not so straightforward. Just like with nexus, states differ in their taxability laws.  

TaxConnex can perform a taxability review to help you understand where your products or services are taxable and help you manage this as your business grows (expansion into new states, changing laws, new product launches and mergers or acquisitions).  

Learn More How TaxConnex Can Help



Establishing a Calculation and Remittance Process 

Determining the most effective international sales tax calculation process needs to consider many variables: where you have nexus, the complexity of the taxability of your products/services, whether your invoices are recurring to the same customers each month, and the capabilities and limitations of your invoicing system. Some businesses can manage the calculation of sales tax without separate sales tax software systems. Other businesses will benefit from a tax rate-only solution, while other more complex taxing schemes will require sales tax software. TaxConnex can help you determine which option is best for you. 

Calculating international sales tax is only part of the challenge. How do you build a process to file the returns and remit payment? Filing and remittance solutions will need to accommodate multiple data files and formats, e-file and paper returns, electronic payments and checks, notice management and resolution, tax calendar updates, and an audit trail to minimize penalty assessments. 

Learn More About Our Compliance Services

calc & remittance image

Navigating Prior Period Exposure

If you haven’t been collecting and remitting international sales tax but you now have nexus and taxable sales, you could have some prior period exposure. The longer you’ve neglected your obligation, the larger the amount owed (and penalties and fees) will be. But, there are options.  

TaxConnex can help you calculate your prior period exposure and guide you to make the right decision in how to mitigate your exposure and create a process to move forward in compliance.  

Learn More About Mitigations Options in our eBook


"TaxConnex will register companies in different states for us. They'll handle the returns for us. They handle the payments for us, they will handle the notices. So it's a complete package as far as I'm concerned."
Cheryl Solaris


Learn more about the TaxConnex® Difference.

Contact Us