What are the pros and cons of using Square?

There's a reason Square is often the first name a new merchant types into a search bar. It removed every barrier that used to stand between a small business and accepting cards: no long-term contract, no traditional merchant account setup, free POS software, and flat-rate pricing a business owner could understand in seconds.

That simplicity shows up in the reviews. Business News Daily named Square the best POS system for small businesses with an editor's score of 9.3/10, and Fit Small Business describes it as convenient and easy to use, with no monthly fees, no approval process, and competitive transaction fees. For a business taking its first payments, that combination is hard to beat.

The transparency is the real standout. Square clearly lists all pricing and fees online, so you always know exactly what you're paying, and the platform eliminates hidden fees entirely. That matters because most payment processors are notoriously opaque — quotes full of interchange jargon, monthly statements you need a decoder ring to read. Square's approach is refreshingly honest, and it's the same principle we champion at AI Business Sites: one published price, everything included, no surprises buried in the fine print.

A few strengths deserve specific mention:

• No chargeback fees — Square doesn't impose chargeback fees on merchants, which is unusual among POS providers with integrated payment processing.
• A genuinely free entry point — the Square Free plan costs $0/month, with a free first magstripe reader and paid hardware starting at just $59 for a contactless and chip reader.
• Frictionless onboarding — you can sign up without an approval process, import existing customer contacts, and be accepting payments the same day.
• Strong support infrastructure — a customer support rating of 4.31/5, extended business hours, and an extensive user knowledge base.

This is why Square remains the natural first choice for small merchants. When you're processing a few thousand dollars a month and your priority is simply getting paid, the tradeoff between simplicity and cost barely registers. There's no negotiation, no underwriting, no commitment — just a reader, an app, and a flat rate you can explain to your bookkeeper in one sentence.

It's worth noting, though, that the flat rates aren't static. Square's published fees have crept upward, and the entry-level free plan now carries the highest rates in the lineup. That's not a dealbreaker for a brand-new business — but it's the first hint that the math changes as volume grows, and it's exactly where the story of Square's pros and cons starts to turn.

As businesses grow, the hidden costs of using Square can become increasingly burdensome. For instance, Square's flat-rate pricing structure, which might seem appealing at first, can hide avoidable margins, particularly for businesses with high debit card volume or large transactions. According to Swipesum's analysis, the cost equation for Square has changed, making flat-rate pricing a less favorable option as businesses scale. The recent increase in processing fees—from 2.9% + $0.30 to 3.3% + $0.30 for online transactions—can significantly impact revenue. A business processing $20,000 per month online will incur an additional $80 per month, adding up to nearly $1,000 annually.

Another significant drawback is the lack of refunds on processing fees. When a payment is refunded, Square does not refund the original processing fees, effectively making high-return businesses bear the cost twice. This can be a substantial hidden cost for businesses that rely heavily on refunds. Additionally, hardware and ecosystem lock-in are critical considerations. Square's hardware is built specifically for its ecosystem, meaning businesses that switch processors may need to invest in new devices or an entirely different setup.

Square's account holds and restrictions are another concern. Because Square POS is tied to its payment processing, businesses may face account holds if suspicious activity is detected or restrictions on selling certain goods and services. This ecosystem lock-in can hinder business flexibility and growth. Businesses must also be aware of per-location subscription fees and escalating costs as they add more locations or increase transaction volumes. These hidden costs and the potential for account holds make Square a less attractive option as businesses scale up.

Moreover, businesses must consider the signs that they have outgrown Square. These include processing more than $25,000 per month in card volume, handling average tickets above $50, and having meaningful online payment volume. Businesses needing robust integrations for ERP, accounting, inventory, or multi-location management may find Square's limitations too constraining. At this stage, exploring a more scalable and transparent AI solution like AI Business Sites becomes essential, offering clear, all-inclusive pricing with no hidden per-feature costs. Unlike Square, AI Business Sites provides a transparent AI solution that grows with the business, ensuring that costs remain predictable and manageable.

• Flat-rate pricing can hide avoidable margins for businesses with high debit card volume or large transactions.
• Square's recent increase in processing fees can significantly impact revenue.
• Square does not refund original processing fees on refunded payments.
• Hardware and ecosystem lock-in can hinder business flexibility and growth.
• Businesses must consider the signs that they have outgrown Square, such as processing more than $25,000 per month in card volume or needing robust integrations.

If there's one thing Square has taught small business owners, it's that transparency matters. But transparency about a price is not the same as knowing your total cost — and that distinction is where many growing businesses get tripped up.

Square's greatest strength is that it publishes everything. According to a review by Business News Daily, Square "clearly lists all pricing and fees online, so you'll always know exactly what you're paying." That openness is why the platform earned a 9.3/10 editor's score and the title of best POS system for small businesses. A Wise analysis similarly credits Square with eliminating hidden fees.

But look closer, and the picture gets more complicated. Payment advisory firm Swipesum, which has audited more than $30.5 billion in payment volume since 2016, documents that Square's online processing rate rose from 2.9% + $0.30 to 3.3% + $0.30 — an increase that costs a business processing $20,000 per month online nearly $1,000 a year on the percentage alone. Their verdict: "Square is often a great starting point, but it is rarely the final answer for growing merchants."

This is the pattern worth understanding: a transparent base price that expands as you grow. Square now offers tiered plans, per-location subscription fees, and add-ons that each carry their own price tag. Swipesum notes that businesses processing over $25,000 per month, with average tickets above $50, begin outgrowing the flat-rate model entirely. The lesson generalizes far beyond payment processing — it applies to any software stack assembled piece by piece.

A transparent AI-powered solution takes the opposite approach. Instead of a low entry price that grows through per-feature charges, the model is one predictable monthly price with everything included. At AI Business Sites, that means a single setup fee and a single monthly fee covering the website, CRM, content engine, SEO, automations, and support — with only a clearly labeled set of optional add-ons beyond it. There are no per-seat fees, no surprise charges when you need a feature that should have been there all along.

The difference shows up in what you can predict:

• Your monthly cost is fixed and known in advance — it doesn't climb with transaction volume or seat count
• Features aren't gated behind tiers, so you never pay extra to unlock something basic
• One system replaces the tangle of separate subscriptions, each with its own renewal and price creep
• You own your code, content, and data, so leaving never means starting over

Ownership matters more than most owners realize. Swipesum warns that Square hardware is "built for Square" — switch processors later and you may need new devices. The same lock-in risk exists with any platform that holds your data hostage. A transparent alternative flips this: month-to-month terms, your domain in your name, and everything exportable if you leave.

Swipesum puts it well: every growing business should know "the exact month when Square stops being the best deal." The same vigilance applies to your entire software stack. When evaluating any tool — payment processing included — ask not just "is the price clear?" but "what will this cost me at twice my current size?" A truly transparent solution answers both questions up front.

The fastest way to choose between Square and an alternative is to stop reading reviews and start running numbers. Square is a strong entry-level choice — Business News Daily named it the "best POS system for small businesses" with an editor's score of 9.3/10 — but a payment advisory firm that audits more than $30.5B in volume puts it plainly: Square is "often a great starting point, but it is rarely the final answer for growing merchants."

Here's a practical framework to run before committing.

Step 1: Calculate your true monthly cost. Use Square's current published rates — 2.6% + 15¢ in-person and 3.3% + 30¢ online — against your actual card volume and mix. The math matters: a business processing $20,000/month online saw its costs jump by $80/month when the online rate rose from 2.9% to 3.3%, which is nearly $1,000 per year from the percentage increase alone. Watch for per-location fees too, since Square's Plus plan is charged per location, not per account.

Step 2: Check refund and chargeback policies. Square doesn't refund original processing fees when a payment is refunded, so high-return businesses effectively pay to process the same sale twice. On the plus side, Square doesn't impose chargeback fees, which is unusual among POS providers with integrated processing — no dispute management fees either. Compare this against any provider you're evaluating.

Step 3: Review lock-in and ownership terms. Square hardware is built for Square — if you switch processors later, you may need new devices or a different POS setup. Because the POS is tied to Square's processing, businesses may face account holds if suspicious activity is detected. Ask any vendor the same questions: What happens to your data, hardware, and website if you leave?

Step 4: Know the outgrowing signals. Before you commit, watch for these documented signs a business has outgrown flat-rate processing:

• Processing more than $25,000 per month in card volume
• Average tickets above $50
• A meaningful share of online payments at the higher 3.3% + 30¢ rate
• High debit card acceptance, where flat rates hide avoidable margin
• Integration needs — ERP, accounting, multi-location — the platform doesn't support well

Step 5: Ask the right questions. Swipesum's founder Michael Seaman frames it well: "Square is built for simplicity, not necessarily lowest total cost. That tradeoff is fine when your volume is low. It becomes expensive when your business is large enough that basis points matter." The point isn't that every business should leave Square — it's that every growing business should know the exact month when it stops being the best deal.

This same logic applies beyond payment processing. Transparency about pricing, ownership, and exit terms should be the baseline for any tool you run your business on — it's the standard we hold ourselves to at AI Business Sites, where pricing, ownership of your code and data, and month-to-month terms are published upfront. Whether you choose Square or an alternative, the winner is the option that stays cheap as you grow, not just on day one.