Canada's Amazon &
E‑Commerce Accountants
We handle the bookkeeping, tax, and compliance so Amazon and e-commerce sellers can focus on growing their business. We're sellers ourselves.
Professional
Accountants
Every service built for
e-commerce sellers
General accountants don't know your business. We specialize exclusively in Amazon and e-commerce. Every service is built around how your business actually works.
E-Commerce Bookkeeping
Monthly books, clean financials, and seller-ready reports. We reconcile Amazon, Shopify, and Walmart payouts, COGS, PPC, and inventory in QuickBooks Online.
Learn more →Corporate Tax Returns
T2 corporate returns optimized for e-commerce income. We understand inventory, PPC deductions, and the nuance that general accountants miss.
Learn more →Personal Tax Returns
T1 personal returns for founders drawing salary or dividends from their e-commerce business. Structured to minimize your overall tax burden.
Learn more →Non-Resident GST/HST
If you sell on Amazon.ca from outside Canada, you likely have GST/HST obligations. We handle registration, filing, and ongoing compliance for international sellers.
Learn more →CBSA Record Custody
We serve as your authorized Canadian record custodian. Encrypted storage, BSF900 filing, and audit support for non-resident importers.
Learn more →Exit Planning
Preparing to sell? We normalize your financials, calculate SDE/EBITDA, document add-backs, and make your numbers buyer-ready.
Learn more →Preparing to Sell
Your Business?
Prepared businesses sell for 20-40% more than unprepared ones. We reverse your tax-minimized books to show buyers what your business actually earns, with SDE/EBITDA calculations, documented add-backs, and a clean financial package.
- ✓SDE and EBITDA calculations with documentation
- ✓Owner add-back identification and evidence
- ✓Recast financial statements (3-5 years)
- ✓Revenue quality and concentration analysis
- ✓Working capital analysis for deal structuring
- ✓Buyer-ready financial package
- ✓Canadian tax planning (LCGE) where applicable
Not just accountants.
Amazon specialists.
Jones & Cosman is one of a small number of Canadian accounting firms that hold Official Amazon Service Provider status. That means Amazon has vetted us as qualified experts for their seller community.
We have been serving e-commerce sellers since 2012. We're sellers ourselves, and we understand how your business works from the inside.
Whether you sell from Canada or into Canada as a non-resident, see how our Amazon seller accounting brings bookkeeping, tax, and GST/HST under one roof.
What our clients say
"Rob and Marsha have been providing tax services for my companies and family for over 4 years. Highly recommend!"
"What used to take me 6+ hours to piece together, they handle in about an hour. Incredible team."
"They took care of everything - corporate tax, personal tax, GST filing. I just focus on selling now."
Tax and compliance guides
written for sellers
Shopify Is Auto-Migrating Canadian Stores to a Paid Tax Service. Here’s How to Stay Free.
If you run a Shopify store in Canada, check your [...]
Business taxesHoldco/Opco Structures for Canadian E-Commerce Sellers: When It Makes Sense and What to Watch For (2026)
A Holdco/Opco structure can defer six figures of personal tax per year and shelter $1.275M of capital gain on sale, but only when the e-commerce business has reached the right s…
Business taxeseBay Canada Marketplace Tax: How GST/HST Works for Canadian and Non-Resident Sellers (2026)
eBay Canada is a marketplace facilitator. Here is how the platform collects and remits GST/HST, PST, and QST on your behalf, when to register, and how to recover GST on eBay fees.
