Every business owner’s nightmare is an internet outage during a busy lunch rush or retail weekend. But what happens to your EPOS system if the Wi-Fi goes down? Do EPOS systems work offline?
The short answer: Yes, some do — and they’re called offline or hybrid EPOS systems.
Join us as we break down how offline-capable EPOS systems work, their pros and cons, and which UK providers offer the most reliable solutions in 2025.
What is an Offline or Hybrid EPOS System?
An offline or hybrid EPOS system is a point-of-sale solution that continues functioning even when there is no internet connection. While traditional cloud-based EPOS systems rely entirely on connectivity, hybrid systems store essential data locally and sync it with the cloud once your internet is restored.
How Offline EPOS Systems Work
- Local storage: The system temporarily stores your device’s transaction data, orders, and product details.
- Auto-sync: Once the connection is re-established, all offline data is automatically uploaded to your central system.
- Functionality varies: Depending on the setup and provider, you may still be able to print receipts, take orders, or even accept card payments.
Pros of Using an Offline EPOS System
✅ Continued Sales During Outages
You can keep trading even when your internet drops — essential for businesses in rural areas or those with patchy Wi-Fi.
✅ Reduced Downtime
Avoid long queues, frustrated customers, and revenue loss caused by unexpected internet issues.
✅ Syncs Automatically
Once you’re back online, your sales, reports and stock levels will sync seamlessly without manual input.
Cons of Offline EPOS Systems
❌ Limited Functionality
Some features, such as CRM updates, email receipts, or real-time reporting, may be restricted offline.
❌ Card Payment Limitations
Not all systems or card machines can process payments offline and you may need to use a 4G backup or integrated solution.
❌ Hardware Dependency
Offline systems often require compatible hardware or local servers, which may add to setup costs.
Features to Look For in an Offline EPOS System
- Automatic Data Syncing
- Integrated Card Payment Support (e.g. 4G fallback)
- Stock and Product Lookup Access
- Receipt Printing and Order Recording
- Multiple Device Compatibility
Best UK EPOS Providers with Offline Functionality (2025)
Provider | Best For | Offline Features | Starting Price |
| Retail & Hospitality | Offline sales, receipt printing, automatic sync | From £55/month |
| Small Shops & Cafés | POS works offline, receipts, stock tracking offline | Free plan + fees |
| Multi-site Retail | Hybrid system, offline mode for sales, order taking | From £59/month |
| Cafés & Quick Service | Offline order processing, sync on reconnection | From £29/month |
| Restaurants & Pubs | Local network support, full till offline | From £45/month |
Vend by Lightspeed | Inventory-heavy Retail | Offline transaction queueing, cloud sync | From £59/month |
Real-Life Scenarios Where Offline Mode Saves the Day
- Power cuts in pubs: EPOS Now users can continue taking orders and printing receipts even if broadband drops.
- Pop-up markets with patchy 4G: Square sellers use offline mode to queue payments and sync later.
- Busy cafés during maintenance: Goodtill keeps the queue moving when the Wi-Fi is down for updates.
Do Card Payments Work Offline Too?
Yes, but it depends on your provider and hardware as some integrated card machines, such as those from Dojo or SumUp, require a live connection and others like Square allow transactions to be queued for later processing, though this carries a small risk if the card is declined after the fact.
our top tip: Consider a 4G router or backup SIM-enabled terminal if you need ultra-reliable card processing.
Final Thoughts
Having a backup connectivity plan is essential for customer-facing UK businesses, and offline EPOS systems ensure that your business stays operational and profitable even in the face of internet failures.
If you’re running a café, restaurant, pub or retail store, an offline or hybrid EPOS system can be the safety net you need.
Need Help Choosing an Offline-Capable EPOS System? Use our EPOS comparison tool to find providers that offer offline functionality, card payment support, and UK-based assistance.
Read more about EPOS Systems here: