Stay Compliant,
Scale Boldly
across US & Canada
Expert US & Canada sales tax and income tax compliance for Amazon FBA, Shopify stores, and cross-border structures. One-stop service from a bilingual team of licensed US & Canadian CPAs.
& Waived
US & Canada
Compliance
States Covered
Why Cross-Border Sellers Choose VATaxus
Sales tax compliance is far more than filing returns — it involves FBA-triggered physical nexus, self-collected Shopify taxes, multi-channel threshold aggregation, and entirely different legal frameworks in the US and Canada. We are one of the few truly one-stop cross-border US & Canada tax teams.
$25M+ Audit Defense Record
Seasoned experience handling tax authority audits and voluntary disclosure agreements (VDA), with over $25 million in penalties and interest successfully abated or waived for our clients.
10+ Years of NA Compliance
Deep expertise in US sales tax, federal & state income tax, and Canada GST·HST·PST compliance — with specialized knowledge of Amazon FBA and Shopify cross-border operations and their common pitfalls.
US & Canadian CPA Licensed
Full-service advisory from licensed US and Canadian CPAs — covering cross-border restructuring, VDA applications, nexus assessments, and bilateral income tax filings under one roof.
Bilingual & Diligent Team
Our entire team communicates fluently in English and Chinese, deeply familiar with the operational context of Chinese cross-border sellers. From state tax notices to formal IRS / CRA correspondence, we handle it all.
One-Stop US & Canada Service
Most US CPAs only handle US taxes; most Canadian CPAs only handle Canadian taxes. We cover both countries — sales tax filings and income tax advisory — through a single point of contact, saving you time and cost.
Amazon SPN Certified Provider
VATaxus is vetted and listed in Amazon's Solution Provider Network (SPN) for tax services — meeting Amazon's standards for expertise, compliance history, and quality. An extra layer of credibility for your FBA business.
US & Canada Sales Tax at a Glance
Two countries, two completely different tax systems — each with its own registration thresholds and filing rules.
Economic Nexus Thresholds
45 states levy sales tax. Cross $100K–$500K in sales and you must register. Amazon MPF collects on your behalf — but the Permit and filing obligation remain yours.
US Rules →Federal Sales Tax
Exceed CAD $30,000 in annual sales and you must register with CRA. Amazon.ca collects on your behalf, but your GST/HST registration and filing duty is independent.
Canada Rules →Provincial Sales Taxes
BC, SK, MB, and QC each have separate provincial tax registration requirements — with non-resident thresholds as low as $0. Entirely independent of federal GST/HST.
Provincial Details →4 Misconceptions Sellers Get Wrong
These misunderstandings can result in substantial back taxes, penalties, and even account suspension risks.
Amazon only collects sales tax as an MPF. You must still independently determine nexus, obtain Sales Tax Permits, and file returns. Collection ≠ exemption from registration.
Non-resident sellers are fully subject to Wayfair economic nexus rules. Most states don't require an SSN — an EIN or ITIN suffices. Canada has additional non-resident obligations with lower thresholds.
FBA warehouses, trade shows, employees, and office addresses all create physical nexus — regardless of sales volume. Physical nexus triggers registration instantly and is the most common cause of back-tax assessments.
Many states charge 5% per month in penalties, up to 25%, with some states auditing back 7 years. Voluntary Disclosure Agreements (VDA) can dramatically reduce penalties — acting early is always cheaper.
5 Steps to Full North America Compliance
From nexus diagnosis and permit registration to periodic filings and record retention — a structured playbook that turns compliance into a competitive edge.
Read the Full Playbook →Book a Free 30-Min
Tax Assessment
Tell us your platform (Amazon / Shopify), fulfillment setup (FBA / 3PL), and approximate sales volume. We'll map out your nexus exposure and registration obligations — at no charge.
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