Editorial Team

Sales Tax at Scale Team

Behind Sales Tax at Scale is a team of practitioners who have spent their careers in the trenches of sales tax compliance. The group includes registered sales tax managers, CPAs, former state revenue department advisors, Streamlined Sales Tax Governing Board participants, and ecommerce accountants who have managed compliance across all 50 states and built the systems and workflows that support it. They contribute to Sales Tax at Scale to help growing ecommerce brands spend less time on compliance operations and more time focused on growing their business.

The Sales Tax at Scale Team writes with a focus on the operational side of sales tax — the processes, systems, and decisions that determine whether a compliance program holds up at scale.

Contributors are experts in multi-state nexus exposure, voluntary disclosure agreements (VDAs), marketplace facilitator obligations, and the filing and reconciliation workflows that mid-market brands rely on across all states.

Content published under this byline is reviewed for accuracy against state statutes, department of revenue guidance, and Streamlined Sales Tax (SST) program standards. The team draws on direct experience with WooCommerce, Shopify Plus, marketplaces, and wholesale channel compliance, as well as ERP integrations with NetSuite, Business Central, SAP, and QuickBooks.

Sales Tax at Scale Team

29 articles

What happens if you ignore a state sales tax notice?

What does a defensible sales tax workpaper look like for a multi-state ecommerce brand?

How does a state sales tax audit work: the lifecycle from notice to assessment?

How do auditors test exemption certificates during a sales tax audit?

What does a state sales tax auditor’s first Information Document Request include?

How do you build sales tax audit-readiness into your monthly close?

How are marketplace-facilitated sales treated during a direct seller’s sales tax audit?

How do you respond to a sales tax audit notice from a state where you’re not registered?

How do you run the three-way reconciliation between Shopify, NetSuite, and a tax engine at month-end?

When does the native tax functionality in NetSuite, Business Central, Acumatica, or Sage Intacct stop being enough for a multi-state ecommerce brand?

What goes wrong in a NetSuite SuiteTax implementation for a Shopify Plus ecommerce brand?

How do you handle sales tax on refunds and partial returns at high order volume?

What latency budget should the tax-calculation step get inside a checkout flow?

What instrumentation should sit between your checkout and your tax provider?

When should sales tax calculation be synchronous, and when should it be asynchronous?

How to design a checkout fallback when the sales tax API times out or errors

How do you handle sales tax API rate limits and burst traffic in production?

How do you plan capacity for a product drop, restock, or viral moment at high TPS?

What TPS profile should a mid-market ecommerce brand design the sales tax stack for?

When should sales tax be calculated in the checkout flow: at cart, checkout, or order placement?

How do you detect and resolve missing or duplicate tax calculations in production?

What does it cost to get your sales tax returns filed?

What to look for in a sales tax platform at every stage of growth

Which states removed the 200-transaction nexus threshold?

What is the reference architecture for sales tax at 100 to 1,000+ TPS?

When does iPaaS middleware (Celigo, Workato, Boomi, MuleSoft) belong in a sales tax integration?

How do non-profit and government exemption certificates work?

How does sales tax penalty abatement work on an audit assessment?

How does a mid-market DTC brand orchestrate sales tax across Shopify, Amazon, Walmart Marketplace, and TikTok Shop?