Online or offline POS: what happens when the internet goes down?
Offline POS vs cloud POS: what keeps working without internet (cash, cards, receipts) and how to test it before you choose a POS.
Written with AI help and fact-checked.
An offline POS keeps the data on the computer in the shop. An online (cloud) POS keeps it on a server, so you can see reports from anywhere. A cloud POS with an offline mode keeps selling without internet, and syncs when the connection returns. The key question: what exactly works the minute the network goes down.
The difference in one table
| Local POS (offline) | Cloud POS (online) | |
|---|---|---|
| Where the data is | On the computer in the shop | On a server |
| Reports from home | No, or through remote access | Yes, from any browser |
| Several branches | Each branch is a separate system | All branches in one place |
| Backup | Your job | The provider's job |
| Updates | Manual, sometimes paid | Automatic |
| Computer dies or is stolen | Data at risk without a backup | Log in from another device |
| Without internet | Works as usual | Only with an offline mode |
| How you pay | Usually a one-time purchase | Monthly subscription |
What happens in a cloud POS when the internet goes down
There are three types:
- No offline mode: selling stops until the network returns. With a queue, that's a problem.
- Cash-only offline mode: keep selling for cash, and sales are saved on the device.
- Offline mode with several payment methods: for example cash and cheque.
Either way, check that sales upload to the server when the connection returns, and that stock and reports update.
And cards without internet?
The card terminal is usually a separate device with its own connection. Without a connection, some transactions won't go through:
- Phone payment (Apple Pay, Google Pay): always needs online approval.
- Transaction above a limit: needs online approval. The limit isn't published; the processing company sets it.
- Small card transaction: sometimes the terminal stores it and transmits when the connection returns. It depends on the card and the processing company.
What to do:
- A terminal with a cellular SIM keeps processing even when the shop's internet goes down. A terminal on the same router goes down with it.
- Ask your processing company what your terminal does without a connection.
- Check in the POS how to record a card payment made while the POS was offline. → Credit card processing for business · Pinpad: what it is
4 tests during the trial
- Turn off the Wi-Fi in the middle of a sale. Is the sale saved?
- Make 3–4 sales without internet. Is a receipt issued?
- Reconnect. Did the sales reach the server? Did stock go down?
- Ask the provider: how long, and how many sales, can the POS hold without a connection?
How to avoid downtime
- Backup internet: a phone hotspot or a router with a backup SIM.
- A terminal with a SIM: processing that doesn't depend on the shop's network.
- Battery: a tablet or mobile device keeps working through a short power cut.
- USB printer: keeps printing without a network.
Which POS suits which business
| Business | Recommendation |
|---|---|
| One shop, stable internet | Cloud POS with an offline mode |
| Several branches | Cloud POS, to see everything in one place |
| Market stall, food truck, fair | Cloud POS with an offline mode and a SIM terminal |
| No internet at all | Local POS, with regular backups |
How it works in KupaLi
Internet down? Keep selling with cash and cheques, and everything syncs when the connection returns. On every plan. Cards: on the terminal you already have, or on a pinpad connected to the register (₪1,500 + VAT). → Try 14 days free · The POS system guide
More questions
Is data in the cloud safe?
Ask the provider where the servers are and how they back up, and check that you can download a uniform-format file (קובץ במבנה אחיד) if you leave. In KupaLi you can download it on every plan.
What else do people ask?
Does a cloud POS work without internet?
Only if it has an offline mode. Check which payment methods work in it and whether sales sync afterwards.
Which is better, a local or a cloud POS?
For most businesses, cloud: backups, reports from home and all branches in one place. A local POS suits a place with no internet at all.
Can I process cards without internet?
Partly. Phone payments and transactions above the processing company's limit need online approval. A terminal with a cellular SIM keeps working even when the shop's internet goes down.
Does Apple Pay work without internet?
No. A phone payment always needs online approval.
What happens to sales made without internet?
In a POS with an offline mode they're saved on the device and upload to the server when the connection returns.