Progeny Apps / Money, tax & reports / Nexum
For uS Shopify merchants selling into many statesEconomic nexus watch for Shopify stores.
Once your sales into a state reach its economic nexus line, you have to register there and collect its sales tax. Nexum totals sales and order counts by ship-to state, for last calendar year and this year to date, against each state's line, and warns at 80% so you can register before the line, not after. Bring in your Shopify orders export. The starting table of 45 states and D.C. is editable and each line can be confirmed. It watches and warns; it does not file. Not tax advice.
On its way to the Shopify App Store. Write to us and we will set your store up first - it is billed through your Shopify bill, like any app.

The problem
Watches your sales by state and warns before you cross a state's sales tax nexus line.
US Shopify merchants selling into many states. $9 a month - under the nexus apps already listed ($19 to $69), because it watches and warns rather than files.
What it does
Inside Nexum
every state with sales: its line, last year's and this year's sales and orders, and where it stands (under, getting close, over, registered, or no sales tax at all). Over a line and not registered is the first thing on the to-do list; "Registered today" takes a state off it.
bring in Shopify's own orders export (Orders, Export, CSV). Nexum keeps one row per order (the export has one per line item), adds only orders it has not seen, and leaves non-US orders out.
the starting table of 45 states and D.C., each line editable, with "Confirmed today" for each one the merchant has checked. The table is a starting point, not tax advice, and every near or crossed state without a confirmed line says so.
what counts as a sale (subtotal, plus shipping, or total), where the warning starts, light or dark, and a backup file. New York needs both its dollar line and 100 orders; a percentage never shows 100% until the line is actually reached.


Pricing
One flat price
No tiers to decode and no share of your sales.
$9 a month
- Sales and order counts by ship-to state, last year and this year
- Warning at 80% of a state's line, or where you set it
- Over-the-line, unregistered states top the to-do list
- Editable table of state lines you can confirm
- Reads your Shopify orders export, skipping repeat orders
Billed through Shopify's own app billing. Cancel by uninstalling. Privacy for this app
Questions
The ones merchants actually ask
Which Shopify plans does it work on?
Works on every Shopify plan.
How am I billed?
$9 a month through Shopify's own app billing, on your normal Shopify bill. No card is taken here and there is no share of your sales.
What happens to my data if I uninstall?
Shopify tells the app the moment you uninstall, and the app erases what it kept for your store. Customer data requests from Shopify are answered the same way. The full detail is on the app's own privacy page.
Is it on the Shopify App Store?
On its way to the Shopify App Store. Write to us and we will set your store up first - it is billed through your Shopify bill, like any app.
Who do I talk to?
A person, at support@progenyapps.com or (541) 208-6685. FHL Stephens LLC, Roseburg, Oregon.
Nexum, $9 a month
Watches your sales by state and warns before you cross a state's sales tax nexus line.


