A point-of-sale system is more than a cash register now. A modern POS handles sales, tracks inventory, manages customer data, and generates reports — all in one place. For a small retail shop, it’s one of the most impactful tech decisions you’ll make.

The challenge is that the options range from free (Square) to thousands of dollars per year, and the marketing makes everything sound equally good. Here’s a practical guide to finding the right fit.

What a small retail POS actually needs to do

Before comparing systems, nail down what you need. Most small retail shops need:

  • Accept payments: Credit cards, debit, contactless (Apple Pay, Google Pay), and cash
  • Track inventory: Know what you have, get alerts when stock runs low, see what’s selling
  • Generate basic reports: Daily sales totals, best-selling items, sales by time of day
  • Customer records: Basic purchase history, maybe email capture for marketing
  • Receipts: Email receipts, printed receipts, or both

Extras that are nice to have but not essential for most small shops: employee time tracking, gift cards, loyalty programs, and e-commerce integration. These features add cost; decide which ones you actually need before comparing pricing.

The main options

Square for Retail: The most popular choice for small retail, and for good reason. The basic tier is free software; you pay only a per-transaction fee (2.6% + 10 cents per swipe). The free reader works with iPhone and Android; the more capable terminal or register hardware costs $300–800. Square’s inventory management is solid, reporting is easy to understand, and setup takes an afternoon. Customer loyalty and gift card features are available on the paid plan (~$60/month).

Shopify POS: Best if you also sell online. Shopify POS integrates your physical store inventory with your Shopify online store, so you’re managing one inventory list for both channels. The catch is you need a Shopify subscription ($29–299/month) plus the POS hardware. If you have or want an online store, this integration is genuinely valuable. If you’re retail-only, the extra cost is harder to justify.

Clover: Hardware-focused with a polished, iPad-style terminal experience. More customizable than Square, with an app store that lets you add features for specific industries. The upfront hardware cost is higher ($500–1500 depending on the setup), and software fees apply on top. A good option if you want a dedicated terminal rather than a tablet setup.

Lightspeed Retail: The option for more established shops with complex inventory needs. Supports multiple locations, vendor purchase orders, detailed inventory tracking with variants (size, color, etc.), and strong reporting. More expensive ($69–229/month depending on tier) and a steeper learning curve, but the inventory management depth is worth it for shops with hundreds of SKUs. Probably overkill for a shop under 3 years old.

Toast (for cafes and restaurants): Not a retail POS, but mentioned because small businesses that are food-adjacent (a bakery, a café, a farm stand) often look at both categories. Toast is purpose-built for food service and handles table management, modifiers, and kitchen displays.

The payment processing fee question

Every POS charges a processing fee on each transaction. This is how they make money on the “free software” model. The fees look small — 2.6% — but add up over a year:

At $400,000 annual revenue with 2.6% fees: $10,400 in processing fees.

Processing fees vary:

  • Square: 2.6% + $0.10 (card present), 3.5% + $0.15 (manual entry)
  • Shopify: 2.7% card present (with Shopify Payments); higher if using third-party payment processor
  • Clover: Varies by plan, typically 2.3–2.6%
  • Lightspeed: Partners with payment processors; rates negotiable above certain volume

At high volumes, negotiating processing rates directly with a payment processor (Stripe, Square, or a merchant services provider) can save meaningfully. Square doesn’t negotiate; most enterprise providers will at $500K+ annual volume.

Hardware considerations

Tablet-based (iPad + reader): The most flexible and portable option. Square, Shopify, and Lightspeed all offer tablet setups. The register can move around the store, work at markets or pop-ups, and be upgraded by just buying a new iPad. The tradeoff is that a tablet on a stand feels less permanent than a dedicated terminal to some customers.

Dedicated terminal: Clover and Lightspeed sell purpose-built hardware that looks like a traditional register. More durable for high-volume environments, a more professional visual appearance, and often better receipt printer integration.

Receipt printer, cash drawer, barcode scanner: These peripherals connect to any of the systems above. Confirm compatibility before buying — most retail POS systems support standard Star Micronics and Epson receipt printers, but check your specific model against their compatibility list.

What to check before committing

  • Offline mode: What happens when your internet goes down? Can you still take card payments? (Square and Shopify have offline modes; some systems don’t.)
  • Contract length: Some POS companies (particularly Clover through certain resellers) lock you into multi-year contracts with equipment lease agreements. Read carefully.
  • Data portability: If you switch systems later, can you export your customer data, inventory, and sales history? You should own your data.
  • Support hours: When the POS has a problem on a busy Saturday, is anyone available to help?

For most small retail shops opening for the first time: start with Square for Retail. It’s free to start, the hardware is affordable, and the inventory and reporting features are sufficient for the first few years. Upgrade to Lightspeed when inventory complexity demands it.

A good POS system becomes part of how your business runs every day — it’s worth a few hours of research and a 30-day trial before committing to anything. Most of the main options offer trials; run your actual business through one for a few weeks before buying the hardware.