Stop Losing Money
to Bad Bookkeeping
& Missed Tax Deductions
TSA & COO Private Limited handles your accounts, taxes, and compliance — so you can focus 100% on scaling your Amazon, Shopify, eBay, or Etsy store.
Trusted by sellers on all major platforms
Running an eCommerce Store Shouldn't Feel Like Financial Chaos
Most online sellers are unknowingly overpaying taxes, missing deductions, and operating without accurate financials. That's money walking out the door every single month.
Our Promise to You
We guarantee accurate books, 100% compliance, and measurable tax savings — or we work for free until we deliver.
Messy Multi-Channel Books
Shopify payouts, Amazon settlements, eBay fees — all landing in one confused spreadsheet. You don't know your real profit.
Surprise Tax Bills
Sales tax nexus violations, missed VAT registrations, and incorrect filings can trigger audits and penalties that destroy margins.
No Real Financial Visibility
Without clean P&L statements, you're scaling blind. You can't get a loan, attract investors, or make smart buying decisions.
Hours Wasted on Admin
Every hour you spend reconciling transactions is an hour not spent on product research, listings, or marketing.
The Complete Financial Engine
for eCommerce SellersEverything you need to stay compliant, save tax, and scale with confidence
eCommerce Bookkeeping
We reconcile every Shopify payout, Amazon FBA settlement, eBay fee, and Etsy transaction — giving you clean books updated on your schedule (daily, weekly, or monthly).
- Multi-channel transaction reconciliation
- COGS tracking & inventory accounting
- Returns, refunds & chargebacks handling
Sales Tax & VAT Filing
Stay compliant across all jurisdictions. We handle nexus analysis, state registrations, periodic returns, and remittances — including UK/EU VAT for international sellers.
- US sales tax nexus & registration
- UK VAT returns (MTD compliant)
- EU OSS & IOSS filing
Financial Reporting
Clear, eCommerce-specific P&L, balance sheets, and cash-flow statements every month. Know your true margins after COGS, platform fees, advertising, and returns.
- Monthly management accounts
- Profitability by SKU / channel
- Cash flow forecasting
Tax Planning & Advisory
Year-round proactive tax strategy — not just year-end filing. We identify every deduction you're entitled to and structure your business to minimise liability legally.
- Annual income tax preparation
- Business structure optimisation
- Deduction maximisation review
CFO Advisory (Scale Package)
For 6- and 7-figure sellers who need strategic financial leadership without the cost of a full-time CFO. Monthly strategy calls, KPI dashboards, and growth forecasting.
- Monthly CFO strategy sessions
- Inventory financing guidance
- Investor-ready financials
Onboarding & Cleanup
Coming from a mess? We specialise in historic bookkeeping cleanup — going back months or years to create accurate records you can actually use and trust.
- Historical data cleanup & catch-up
- Chart of accounts setup
- QuickBooks / Xero migration
Why 500+ Sellers Choose TSA & COO Over Generic Accountants
Most accountants understand general tax law. We understand Amazon FBA fee structures, Shopify Payments payouts, cross-border VAT, and multi-currency reconciliation. That's the difference.
Learn About Our Team →eCommerce-Only Specialists
We don't work with restaurants, retail shops, or law firms. 100% of our clients are online sellers — which means we know your world inside out.
Audit-Proof Compliance
Every filing is reviewed, double-checked, and submitted on time. If HMRC, IRS, or FBR ever comes knocking, your books will be spotless.
Real-Time Financial Visibility
No more waiting until year-end to know where you stand. Live dashboards and monthly reports give you the numbers you need to make smart decisions.
Dedicated Account Manager
You get a named accountant who knows your business — not a call centre. Respond within 24 hours, guaranteed.
Real Results From Real Sellers
Don't take our word for it. Here's what eCommerce sellers say after working with us.
"I was paying $4,000 a year to a local accountant who had no clue about Amazon FBA. TSA & COO saved me $14,000 in my first tax year and cleaned up 18 months of books in 2 weeks."
"Our Shopify + eBay sales were completely mixed up. Within 48 hours of onboarding, TSA & COO had everything separated, reconciled, and our VAT sorted. Absolute lifesavers."
"As a 7-figure Etsy and Shopify seller, I needed someone who understood eCommerce accounting deeply. TSA & COO's CFO package gave me the visibility I needed to raise investment."
Frequently Asked Questions
Everything you need to know before getting started.
Get Your Free eCommerce Financial Health Check
In 30 minutes, our specialist will review your current bookkeeping, identify tax risks, and show you exactly how much you could save. No obligation. No sales pressure.
Identify Tax Savings
Find deductions you're currently missing.
Spot Compliance Risks
Catch nexus violations before they become penalties.
Get a Custom Roadmap
Walk away with a clear action plan for your finances.
Book Your Free 30-Min Consultation
Join 500+ eCommerce sellers who made the switch. Limited Spots
Ready to Stop Overpaying Tax & Start Scaling?
Join 500+ eCommerce sellers who have cleaner books, lower tax bills, and more time to grow.
Book Your Free Consultation Today✓ No contracts ✓ Cancel anytime ✓ Results guaranteed