Stop discovering too late that you have sales tax nexus in 12 new states because your Amazon FBA inventory moved around or you crossed economic thresholds months ago. Automatically sync tax rules across every jurisdiction you sell into, flag compliance gaps before penalties hit, and ensure you collect the right amount on every transaction whether you sell through Shopify, Amazon, TikTok Shop, or your wholesale channel.
Multi-jurisdiction tax rule mapping + economic nexus threshold monitoring + physical presence tracking + product taxability classification + cross-channel calculation sync + filing obligation alerting.
✓ Good fit when
You sell across state lines, use Amazon FBA or 3PLs that move inventory, have crossed or are approaching $100k in any state, sell products with varying taxability (clothing vs. electronics vs. digital), or have started getting "congratulations you have nexus" letters from states.
✗ Skip it when
You sell locally within one state only, do under $100k nationally, and handle all fulfillment from your garage so physical presence never changes.
Manual nexus tracking across 13,000+ tax jurisdictions, spreadsheet monitoring of economic thresholds, surprise penalty notices from states you forgot to register in, and the endless headache of wondering whether your products are taxable in Ohio but exempt in Massachusetts.
A DTC supplement brand got hit with a $47,000 penalty for uncollected sales tax across 8 states they didn't know they had nexus in. Amazon had moved their FBA inventory into new warehouses over 18 months, triggering physical presence in states they'd never shipped to directly. The tax authority didn't care that they didn't know. The penalties and interest were real.
These are the traps that stall most builds once the pitch deck ends. Pressure-test your partners on how they prevent each before you sign.
Two main triggers. Economic nexus happens when you cross a state's sales threshold, typically $100,000 or 200 transactions, even with no physical presence there [citation:1]. Physical nexus happens when you have inventory in Amazon FBA warehouses, employees or contractors working remotely, or even 3PL partners storing your products [citation:3]. Most DTC brands trigger both without realizing it.
Not even close. Marketplace facilitator laws mean Amazon collects on Amazon sales, but if you also sell through your Shopify site or wholesale channel into that same state, you still owe tax on those direct sales [citation:3]. Many brands assume "Amazon handles it" and forget they have independent obligations for every other channel. The state sees all your revenue, not just marketplace sales.
Faster than you think. A single viral TikTok video can push you over economic thresholds in multiple states within days [citation:4]. Or Amazon can silently move FBA inventory to balance their warehouse network, and suddenly you have physical presence in Ohio when all your stock shifts to a new fulfillment center [citation:7]. Without active monitoring, you only find out when penalty notices arrive.
Economic nexus now triggers income tax obligations in states like California, New York, and Massachusetts [citation:1]. Some states impose franchise taxes just for "doing business" there, like California's $800 minimum franchise tax [citation:1]. Others have gross receipts taxes based on total revenue, not profit, so you can owe tax even when you lose money on sales in that state [citation:1].
Every state has its own rules. Clothing is taxable in some states, exempt in others. SaaS is taxed as software in Washington, as a digital service in Massachusetts, and exempt entirely in Florida [citation:7]. Digital downloads, subscriptions, and bundled products all have varying treatment. The system maps your specific products against current rules for every jurisdiction so you collect correctly every time.
Most states require you to register and start collecting immediately, not at the next filing period [citation:8]. If you cross $100,000 in June but don't register until January, you owe tax on every sale from June forward out of your own pocket. The system alerts you the moment you hit threshold so you register immediately and collect going forward, avoiding back-tax liability.
Every state assigns frequencies based on your volume. You might file monthly in California, quarterly in Texas, and annually in a low-volume state [citation:10]. These can change without notice when your sales shift. The system tracks every state's requirements and deadlines so you never miss a filing, even when frequencies change automatically.
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