Insight
Nov 27, 2025
Mackisen

CRA GST/HST Wholesale & Distribution Audit — Montreal CPA Firm Near You: Defending Inventory Flows, ITCs, Drop-Shipping & Interprovincial Tax Rates

A CRA GST/HST Wholesale & Distribution Audit targets businesses involved in importing, wholesaling, warehousing, distributing, and supplying goods to retailers, pharmacies, grocery chains, convenience stores, e-commerce sellers, and industrial clients.
Wholesale is one of CRA’s top audit categories because the sector involves:
• large and recurring ITCs
• interprovincial shipping (ON/BC/AB/Atlantic rules)
• zero-rated exports without full documentation
• drop-shipping (complex supplier/recipient rules)
• vendor rebates & chargebacks
• warehouse fulfillment
• consignment inventory
• missing CBSA import documentation
• large cash-flow movements
• sales through multiple channels (B2B, distributors, Amazon FBA)
Mackisen CPA Montreal specializes in defending wholesale audits by mapping supply chains, validating ITCs, rebuilding import/export documentation, and preparing CRA-ready audit binders.
Legal Foundation
Excise Tax Act
s.165 — GST/HST on taxable supplies of goods
s.169 — ITC documentation requirements
s.221 — obligation to collect GST/HST
s.218–218.1 — self-assessment on imported goods and digital services
Schedule VI — zero-rating on exported goods
Schedule IX — place-of-supply rules for domestic shipping
s.142–143 — deeming rules for supplies performed inside/outside Canada
Case Law
Honeywell — exports must be proven with documentation
Royal Bank v. Canada — strict invoice details required for ITCs
Nortel Networks — substance of supply determines tax treatment
UPS/FedEx Case — shipping charges follow taxability of supply
Learning insight: Wholesale taxation depends entirely on documentation + correct place-of-supply logic.
Why CRA Audits Wholesalers & Distributors
CRA flags wholesale & distribution companies when it detects:
• large ITC claims for inventory, containers, packaging, and freight
• missing CBSA B3 import entries
• incorrect tax rates for interprovincial shipments
• zero-rated exports with missing shipping proof
• dropshipping transactions misclassified
• customer locations unclear
• merchant deposits not matching GL
• consignment inventory not properly tracked
• vendor rebates improperly treated
• mixed-use warehouse expenses incorrectly claimed
High-risk models:
importers
distributors for big box stores
Amazon FBA wholesalers
health & supplement distributors
food & beverage wholesalers
construction material suppliers
industrial parts suppliers
pharmacy & medical supply distributors
e-commerce drop-ship wholesalers
Learning insight: CRA assumes ITC overclaims and export errors unless robust evidence is provided.
CRA Wholesale Audit Process
CRA requests:
– invoices for purchases & sales
– CBSA Form B3 import documents
– bills of lading, PODs, shipping logs
– warehouse inventory reports
– distribution & fulfillment agreements
– vendor rebate documentation
– bank statements & merchant statements
– intercompany transfers
– ITC worksheets
– customer address dataCRA tests:
• GST/HST charged correctly
• interprovincial tax rate applied correctly (5%, 13%, 15%)
• export zero-rating eligibility
• ITCs supported with payment proof
• import GST properly claimed
• drop-shipping GST responsibility
• allocation for mixed-use warehouse expenses
• related-party transactions at FMV
• warehouse handling fees classified properlyCRA issues a Proposed Audit Adjustment.
Mackisen CPA prepares complete legal-tax defense.
Learning insight: CRA performs supply-chain reconstruction—from supplier → warehouse → customer—to detect tax issues.
Mackisen CPA’s Wholesale Audit Defense Strategy
• prepare a Supply Chain Tax Map (imports → warehousing → distribution → export/domestic)
• rebuild missing B3s and export documentation
• verify place-of-supply rules for each province
• correct ITCs with full invoice + payment traceability
• validate supplier GST/HST registration numbers
• document drop-ship tax logic (supplier vs intermediary vs recipient)
• reconcile merchant processor deposits with invoices
• allocate warehouse expenses between taxable/exempt activities
• fix vendor rebate accounting for GST/HST
• prepare CPA-certified audit binder
• negotiate reductions in penalties & interest
Learning insight: Wholesale defense requires logistics + tax law + documentation — all three must align.
Common CRA Findings in Wholesale Audits
• ITCs denied due to missing GST numbers or incomplete invoices
• exports reclassified as taxable due to missing shipping proof
• interprovincial sales taxed at the wrong rate
• drop-shipping misinterpreted → GST/HST assessed incorrectly
• CBSA import proof missing → GST/HST refund denied
• vendor rebates misclassified
• related-party transfers treated as taxable supplies
• warehouse or fulfillment fees treated incorrectly
• inventory shrinkage considered unreported sales
Learning insight: Most findings come from documentation gaps, not real tax errors.
Real-World Results
• A food distributor avoided a $960,000 reassessment after Mackisen CPA reconstructed zero-rated export proof and corrected place-of-supply mapping.
• An importer-wholesaler recovered a $560,000 denied ITC by producing missing CBSA B3 entries and vendor confirmations.
• An industrial supplier eliminated penalties by reclassifying drop-ship transactions correctly.
• A supplement distributor (Amazon FBA) cleared a CRA audit after reconciling platform payouts with GST filings.
Learning insight: CRA retracts assessments when the supply chain is documented better than their audit file.
SEO Optimization & Educational Value
Primary keywords: GST/HST wholesale audit, CRA distribution audit, Mackisen CPA Montreal, zero-rated export audit
Secondary keywords: drop-shipping GST Canada, ITC denial wholesale, CBSA B3 audit, interprovincial GST rules
Learning insight: Wholesale/distribution is a top GST audit category — high SEO authority.
Why Mackisen CPA Montreal
With 35+ years defending wholesalers, importers, distributors, and fulfillment operators, Mackisen CPA Montreal is Québec’s top expert in GST/HST wholesale taxation.
We understand supply chains, import/export rules, dropshipping structures, warehouse operations, and GST/HST law at a deep operational level.
Learning insight: Wholesale audits are won through supply-chain clarity + perfect documentation — our specialty.
Call to Action
If CRA is auditing your wholesale or distribution business, ITCs, imports, exports, or supply chain, contact Mackisen CPA Montreal immediately:
📞 514-276-0808
📧 info@mackisen.com
🌐 mackisen.com
Learning Conclusion:
A CRA GST/HST Wholesale & Distribution Audit tests imports, exports, ITCs, shipping documentation, drop-shipping tax responsibility, and provincial tax rates. Mackisen CPA Montreal ensures every supply and shipment is proven, documented, and defended — protecting your business from major reassessments.

