When choosing an online fiscal register, the most important thing is that the software is an approved ESIR, works without hardware and has a fair monthly price. Also look at the QR code, the integrations you need and support.
Seven things to check
- Approved ESIR - first check: is it in the Tax Administration register of approved ESIRs
- No hardware - it runs on the device you already have
- QR code and online fiscalisation - the buyer can verify the receipt
- Fair price - a clear number of included receipts, no hidden costs
- Integrations - SEF (e-invoices), bank and web shop, if you need them
- Simplicity - active in minutes and easy daily use
- Support - phone and email when customers are waiting
Online or classic
If you are a service business, small firm or flat-rate entrepreneur, an online register is almost always the right choice.
A quick check before deciding
Use the free trial to see whether the register suits your daily work, and confirm it is in the register of approved ESIRs. An example that meets all of the above is Tezga eKasa.
Key takeaways
- An approved ESIR is the first and most important check
- No hardware, a QR code, a fair price
- Integrations (SEF, bank) and support as needed
- Try it free before deciding
Frequently asked questions
Check it is an approved ESIR, works without hardware, has a QR code and a fair price, offers the integrations you need and support.
The best one is approved, simple and fits your line of work. For service firms that is a simple online register with no hardware.
In the public register of approved ESIRs of the Tax Administration, by name and identification number.
What you get with Tezga eKasa
- Check it is an approved ESIR (Tax Administration register)
- It works without hardware and has a QR code
- Fair monthly price and the integrations you need
- Phone and email support
Read more
The simplest fiscal cash register in Serbia: type a sentence, get a receipt → Tezga eKasa is an officially approved ESIR: what that means for your business → e-Invoicing in Serbia 2026: who must comply, deadlines, and how →Try Tezga eKasa free
Fiscal receipts and e-invoices for service businesses - a register that keeps it simple.
Korisni vodiči za male firme - jednom mesečno, bez spama.