Does each Shopify POS register need its own TSE?

How does Shopify's TSE app count locations and registers?

You turn Shopify's TSE (KassenSichV) app on for each store location you select as active. Once the app may integrate with the devices at a retail location, you can print receipts with TSE information at any of your store registers.

The app costs $9 USD per store location a month, on top of your POS subscription, and Shopify lists the charge for each store location.

What goes into the ELSTER notice when registers share a TSE?

Germany's finance ministry (BMF) answers the per-register question with a no: several cash registers can be connected to one TSE. The rule it cites, No. 1.6 of the AEAO on §146a, assigns each recording system or group of systems to exactly one TSE during trouble-free operation.

All recording systems of one business premises (Betriebsstätte) go into one notice. The form gives each recording system its own entry with a TSE serial field, so systems sharing a TSE repeat the same serial.

For the serial's format, see how to enter the TSE serial in the ELSTER notice.

What changes when you add a location or a register?

To add a new store location, select it under Manage TSE and approve the updated subscription; each added location costs another $9 USD a month, on top of your POS subscription.

For a new register at an active location, neither the TSE help page nor the app's App Store listing, read September 28, 2026, lists a separate fee. The help page's POS integration section says that to activate the integration, you need to update your POS app to the latest version.

When you update the ELSTER notice, list every recording system of that business premises, not only the new one. Whether the app sends anything itself is covered in what the TSE app submits to the tax office.

Third-party TSE apps can bill differently: OpenFiskal prices per register on its App Store listing, read September 28, 2026. Count registers for the bill only if you run a per-register app.