Multi-State Sales Tax Compliance Services
Economic-nexus review, multi-state registration, monthly filings, remittance, and back-period voluntary disclosure agreements for U.S. businesses with multi-state sales tax obligations.
Why sales tax businesses need accounting built for them.
Post-Wayfair (2018), nearly every state imposes economic-nexus sales tax obligations once a seller crosses a revenue or transaction threshold. Most businesses with online sales have triggered nexus in multiple states without realizing it, and the back-period exposure grows monthly. Filing in even a few states manually creates real risk; filing in dozens manually is unmanageable. Most generalist accountants do not own this work.
What we deliver for sales tax clients.
Every engagement combines our core accounting practice with the industry-specific knowledge sales tax businesses need.
Nexus Review
Multi-state nexus analysis identifying every state where you have collected or sourced revenue triggering obligation.
Registration
Registration in obligated states including business license registration where applicable.
Monthly Filings
Returns prepared and filed on the cadence each state requires.
VDA Negotiations
Voluntary disclosure agreements for unregistered states with back-period exposure.
Tax-Engine Setup
Avalara, TaxJar, or Stripe Tax setup and ongoing reconciliation.
Audit Defense
Representation for state sales-tax audits and exemption certificate reviews.
Practice depth, documented standards, accountable people.
We hold ourselves to documented editorial standards, a published client success methodology, and the compliance posture appropriate to a U.S. professional accounting firm. Specifically for sales tax engagements:
- Economic-nexus review across all 45 states with general sales tax
- Marketplace facilitator analysis: where Amazon or Shopify collects vs. where the seller must
- Sales tax registration in all required jurisdictions
- Monthly, quarterly, or annual filings as required
- Voluntary disclosure agreement (VDA) negotiations for back-period exposure
- Tax-engine implementation: Avalara, TaxJar, Stripe Tax, Sovos
- Product-taxability research for industries with category-specific rules (food, services, SaaS)
We are not a CPA firm. For engagements requiring CPA attestation, we coordinate with our licensed CPA partner network. We do not exaggerate credentials, and the named team on your engagement is the team that performs the work.
FAQ for sales tax clients
Do I really have to register in every state?
You have to register in every state where you have nexus and where your products or services are taxable. Sales tax thresholds and product taxability vary by state; the review identifies which states actually require registration.
What if marketplaces collect for me?
Most states now require marketplaces (Amazon, Etsy, Walmart, eBay) to collect on behalf of sellers. Your direct-to-consumer sales still create nexus and registration obligations.
I have back-period exposure, what are my options?
Voluntary disclosure agreements typically waive penalty and limit lookback to three or four years. Without a VDA, states can look back indefinitely once they identify you.
Do you handle international VAT?
No. We handle U.S. state and local sales tax. For international VAT/GST we coordinate with international tax partners.
Three steps from here to a working engagement.
Generate a quote
Eight questions, 90 seconds, a locked final monthly price scaled to your specific sales tax profile.
Discovery call
A 20-minute call to confirm the scope, meet your account lead, and align on the engagement details.
Onboard in 2 to 6 weeks
We rebuild your books to a clean baseline and run our first monthly close in parallel before fully taking over.