Cross-border e-commerce has the most tax complexity per dollar. We tame it.
Shopify and Amazon don't tell you when you've triggered sales-tax nexus in a dozen states or tripped a foreign-ownership filing. We give online sellers a single team for multi-state sales tax, clean platform bookkeeping, and international compliance — for one monthly fee.
Se habla Español · Se fala Português. Fixed-fee engagements — you always know the price before work begins.
The liability builds quietly — until it doesn't
E-commerce stacks state nexus, inventory accounting, and international ownership rules on top of each other. Most generalist bookkeepers see only one layer.
Sales-tax nexus you didn't know you had
Hit a state's sales threshold — or store inventory in an Amazon warehouse there — and you owe sales tax, registration, and filings. Uncollected back tax comes out of your pocket, not your customers'.
Platform payouts aren't your revenue
Shopify, Amazon, and Stripe net out fees, refunds, and reserves before they pay you. Books built off deposits are wrong — and wrong books mean wrong tax.
Foreign founder? Add a whole second layer
If the store is foreign-owned, Form 5472, intercompany pricing on inventory and IP, and U.S. corporate filings all apply on top of the state mess.
For online sellers operating across states — and borders
Whether you're a foreign founder selling into the U.S. or a U.S. seller with overseas warehousing and suppliers, the complexity is the same: high.
Tell us about your situation- Selling on Shopify, Amazon, or multiple channels at once
- Triggering sales-tax nexus in several states (or unsure if you have)
- A foreign-owned LLC or corporation selling into the U.S. market
- Carrying inventory that needs proper COGS and cutoff accounting
- Paying or charging a related company overseas for goods or IP
- Drowning in platform reports that don't reconcile to your bank
One monthly fee for the whole stack
Bookkeeping with platform integrations, multi-state sales tax, and international filings — bundled. Most growing stores choose Growth.
E-com Starter
- Bookkeeping with A2X / Synder / Shopify sync (to 1,000 txns/mo)
- Sales-tax filings in up to 5 states
- Form 1120 + 5472 if foreign-owned
- State franchise/annual filing — one state included (Texas franchise report, or your state's equivalent)
- Annual nexus refresh
- Quarterly call
E-com Growth
- Everything in Starter, plus:
- Multi-channel bookkeeping (up to 3 platforms, 2,000 txns)
- Sales tax in up to 12 states
- Inventory accounting / COGS reconciliation
- Transfer-pricing method & agreements — 2 transaction types
- Monthly KPI dashboard
- Annual nexus study + voluntary disclosure if needed
E-com Strategic
- Everything in Growth, plus:
- Sales tax in up to 25 states
- Fractional CFO layer (cash flow, AOV/CAC, runway)
- Up to 5 platforms / multi-currency
- Transfer-pricing method & agreements — up to 4 transaction types
- Nexus optimization + Avalara/TaxJar implementation oversight
Fees are starting points based on transaction volume, channels, and states. Setup includes your initial nexus study and registrations as listed. EU VAT, customs/duties, and product-classification studies are referred out to specialists.
Not ready for a full engagement?
Start with a 60-minute Orientation Session — your realistic paths, your exact filing list and deadlines, and a one-page written summary. $750 flat, credited in full toward any engagement within 60 days.
Sales tax, bookkeeping, and international — under one roof
Most sellers bolt together a bookkeeper, a sales-tax app, and a tax preparer who never speak. We replace all three with one specialist team.
From first call to filed & handled
No surprises, no scope creep, no jargon. Just a clear path and a fixed fee.
Free strategy session
We map your channels, states, and ownership to find the real exposure.
Engagement letter
A fixed monthly fee and clear scope, in writing, before work starts.
Connect & clean up
We integrate your platforms and get the books reconciled and right.
Run & optimize
Ongoing filings, dashboards, and nexus management — on autopilot for you.
International e-commerce tax, answered
How do I know if I owe sales tax in a state I've never been to?
Economic nexus rules mean crossing a state's sales or transaction threshold creates a filing obligation — and storing inventory in a state (common with Amazon FBA) can create it instantly. A nexus study, included in our packages, tells you exactly where you stand.
Why can't I just use my Shopify or Amazon reports for bookkeeping?
Because those payouts are net of platform fees, refunds, chargebacks, and reserves. Recording the deposit as revenue understates your sales and misstates your tax. We use proper integrations (A2X, Synder) to record gross sales and reconcile correctly.
I'm a foreign founder with a U.S. LLC store. What's different for me?
A lot. On top of sales tax, you likely have Form 5472, a U.S. corporate return, and intercompany pricing on inventory or IP bought from your home-country entity. All of that is built into our foreign-owned e-commerce packages.
Can you fix back sales tax I should have been collecting?
Often yes — through voluntary disclosure agreements that can limit look-back periods and waive penalties. We assess this as part of the Growth and Strategic tiers and coordinate the cleanup.
Do you handle EU VAT or customs duties?
Those sit outside U.S. tax and we refer them to specialist partners, while we stay your lead on everything U.S. side. We'll tell you clearly where our scope ends.
Do you only work with companies in Texas?
No. Federal international filings — Forms 5472, 5471, 1120-F, FIRPTA withholding — have no state boundary, and we serve foreign-owned companies in all 50 states. We're based in Houston, one of America's largest international business hubs, and we prepare state filings for whichever state your entity is in (Texas franchise reports included for Texas entities).
Get your e-commerce tax under control before it controls you
Book a free strategy session. We'll map your nexus and ownership, flag your exposure, and quote a fixed monthly fee.