Every state has an economic-nexus threshold. Cross one without registering and the back taxes, penalties, and interest are yours. NexusRadar watches all of them — for one flat price, with no per-filing fees, ever.
Built for Shopify, Amazon, and Stripe sellers under $1M in revenue — the ones enterprise tools overcharge and over-complicate.
Enter your annual sales and order count per state. We check each against that state's current economic-nexus threshold and tell you exactly where you need to register and start collecting. Nothing leaves your browser.
A quick average combined rate (state + typical local) for any state, for collection planning.
Incumbents advertise a low base price, then bill per filing, per state, and per registration. For a seller in five states filing monthly, that quietly becomes hundreds a month. We don't do that.
| Provider | Model | Est. all-in / yr |
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Figures are representative published-pricing estimates for the stated profile (subscription + per-filing + registration where applicable); actual quotes vary. Sourced in the opportunity brief. NexusRadar does not file returns — see “What it does” below.
The expensive, error-prone part of sales tax is knowing where you owe and what to collect. That's what we do. Filing itself is cheap and we hand it to you or your accountant clean — which is why we can stay flat.
Since the 2018 South Dakota v. Wayfair Supreme Court decision, a state can require you to collect its sales tax once your sales into that state cross a threshold — typically $100,000 in sales, or a set number of transactions — even if you have no physical presence there. Cross it unknowingly and you're liable for the tax you should have collected, plus penalties and interest.
Because most tools bundle filing and charge for it — per return, per state, per registration. If you sell into five states and file monthly, that's sixty filings a year on top of the base subscription. NexusRadar separates the two: we monitor and calculate for a flat fee, and leave the (cheap, occasional) filing to you or your bookkeeper.
No — on purpose. Filing is where the runaway fees live. We give you a clean per-state summary of what you collected so filing takes minutes, either yourself through the state portal or by handing it to your accountant.
The nexus checker on this page runs entirely in your browser — nothing is sent anywhere. The paid product connects to your Shopify/Amazon/Stripe sales read-only to keep the numbers current.
No. NexusRadar is informational software to help you monitor thresholds and plan collection. For advice specific to your situation, talk to a licensed tax professional.