Retail space in Singapore is expensive, so small shops need every square metre and every staff hour to count. Your POS should be compact — ideally just a phone — while still producing correct GST invoices and the reports your accountant needs.
This guide covers what small Singapore retailers should look for in retail POS software in 2026, with a checklist and answers to common questions.
GST in Singapore: What Your POS Must Handle
- 9% GST: Since 1 January 2024, GST-registered businesses charge 9% GST on most local sales.
- Tax invoices and price display: GST-registered businesses must issue proper tax invoices and show GST-inclusive prices to consumers.
- GST returns: You report GST collected each period, so totals need to be easy to extract.
Rules change, so confirm current requirements with the Inland Revenue Authority of Singapore (IRAS) or your accountant before going live.
Key Features to Look For in a Singapore Retail POS
1. Configurable GST and Tax Invoices
Set the 9% GST rate, show it clearly on every invoice and include your business details using a custom bill format.
2. GST and Sales Reports
Pull tax summary and sales reports by period to make GST return preparation quick.
3. Compact, Phone-Based Billing
Run the whole POS on an Android or iOS smartphone and save counter space. RetaPOS is cloud-based and needs a stable Wi-Fi or 4G/5G connection.
4. Inventory for Small Shops
Track up to 500 SKUs with barcode scanning, low-stock alerts and supplier purchase orders.
5. Loyalty and Customer Messaging
Run loyalty points and birthday offers, and keep in touch with customers by WhatsApp or SMS.
How to Choose a Retail POS in Singapore: Checklist
| What to check | Why it matters in Singapore | RetaPOS |
|---|---|---|
| Configurable 9% GST | Correct tax on every sale | Yes |
| Tax invoice formats | Proper invoices for customers | Yes, custom bill formats |
| Tax summary reports | Faster GST returns | Yes |
| Runs on a phone | Saves expensive counter space | Android and iOS |
| Inventory for a small catalog | Accurate stock without complexity | Up to 500 SKUs |
| Simple yearly price | No surprise add-ons | US$399/year, unlimited users |
RetaPOS for Singapore Small Retailers
- Configurable GST with tax shown on every invoice
- Custom invoice formats with your business details
- Tax summary, sales and profit reports
- Inventory for up to 500 SKUs with barcode labels and alerts
- Loyalty, birthday offers and WhatsApp/SMS campaigns
- US$399/year, billed in US dollars, with unlimited users
Explore all RetaPOS features →
Singapore Retail POS: Frequently Asked Questions
What is the best POS system for a small business in Singapore?
The best POS for a small Singapore business applies 9% GST correctly, produces tax invoices and GST reports, runs on a phone to save counter space and manages inventory at small-shop scale. RetaPOS does this for US$399/year with unlimited users.
How much does RetaPOS cost in Singapore?
RetaPOS costs US$399/year per store, billed in US dollars, with every feature and unlimited users included.
Can I run RetaPOS on just a smartphone?
Yes. RetaPOS is mobile-first and runs on any Android or iOS smartphone, with optional Bluetooth receipt printers and barcode scanners.
Does RetaPOS work offline?
No. RetaPOS is a cloud POS and needs a stable Wi-Fi or 4G/5G connection.
Bottom Line
The best retail POS for a small Singapore shop in 2026 gets GST right, takes up almost no counter space and helps you keep regular customers. RetaPOS does this from the phone you already own. Also see our Australia retail POS guide.
