Our Story
We built this firm because general accountants kept getting Amazon wrong
Rob and Marsha Cosman started Jones and Cosman in 2016 with one belief: Canadian Amazon sellers deserved accountants who actually understood their business.
Our Story
Specialists, not generalists
We know the difference between COGS normalization and cleanup. We understand FBA fee structures, PPC deductibility, and what a broker means when they ask for a clean TTM.
We are one of a small number of Canadian CPA firms with Official Amazon Service Provider status, vetted by Amazon as qualified experts for their seller community.
Today we serve Amazon sellers and e-commerce businesses across Canada.
Since 2016
Founded
ASP
Amazon Service Provider
CPA
Chartered Professional Accountants
Daily
Inside Seller Central
What Sets Us Apart
Why sellers choose Jones & Cosman
- Official Amazon Service Provider, vetted by Amazon
- CPA designated, Chartered Professional Accountants of Canada
- Inside Seller Central every day: we live in the same reports you do
- Always current: when Amazon changes fee structures, settlement reports, or policies, we update our processes immediately
- Amazon and Shopify fluency: FBA fees, PPC, COGS, settlements, reimbursements, Shopify payouts, multi-channel reconciliation
- Full-service: bookkeeping, tax, compliance, GST/HST, CBSA, and exit planning under one roof
Work with accountants who understand your business
Specialized e-commerce accounting since 2016. If you sell on Amazon in Canada, we are built for you.