Square Review — The Standard for Taking Payments On-Site in the Field

Real Pricing

⚠ Card-not-present (invoices, keyed-in): 2.9% + $0.30 per transaction. First card reader is free. Instant deposit costs an extra 1.75%. No monthly fees for basic processing. Square Appointments for scheduling is a separate paid add-on.

What It Actually Does

Square lets you accept credit card payments anywhere using a small reader that plugs into your phone or connects wirelessly. When a customer wants to pay by card, you plug in the reader, they tap or insert their card, and the money shows up in your bank account in one to two business days. That’s the core of it.

Beyond the reader, Square gives you digital invoices you can email or text with a pay now button, a free point-of-sale app that tracks sales and customers, payment links you can text to someone who owes you money, and basic reporting on what you’ve been paid and when. The invoicing is clean and simple. A customer gets an email with a button that says pay now. They click it, enter their card, and you get paid. No app download required on their end.

Square also offers a checking account and debit card for your business, which means incoming payments are available instantly instead of waiting for a bank transfer. And if you need a loan, Square offers financing based on your payment history rather than your credit score. Both of those features are optional and separate from the core payment processing.

What It Costs

The reader is free when you sign up. That’s not a promotional trick. Square makes money on processing fees, not hardware. You pay 2.6 percent plus 10 cents every time someone taps or inserts a card in person. On a $500 electrical repair, that’s about $13 in fees. Digital invoices and keyed-in cards cost slightly more at 2.9 percent plus 30 cents because there’s more fraud risk when the card isn’t physically present.

For large transactions, the math shifts. On a $50,000 pool project, the processing fee at 2.6 percent is $1,300. That’s real money. For large amounts like that, offer ACH bank transfer as an alternative. Square supports ACH payments too, and the fee structure is different. Or use Stripe for large online invoices where the ACH rate is capped at $5.

Instant deposit costs an extra 1.75 percent of the transaction amount if you want the money in your account immediately instead of waiting one to two business days. For most contractors, the standard deposit timeline is fine. If you need the cash flow, instant deposit is available but it adds up.

There are no monthly fees for basic payment processing. You pay only when you process a payment. That’s why Square makes sense even if you only take a few card payments a month. There’s no subscription to justify.

Square vs Stripe

This is the comparison that comes up most often. Square is built around in-person payments. The card reader, the POS app, the simple interface. It’s designed for someone standing in front of a customer who wants to tap their phone and pay. Stripe is built around online payments. Invoicing, subscriptions, integrations with websites and apps. It’s designed for businesses that take payments remotely.

Most contractors should have both. Square for on-site card payments when you’re standing in the customer’s kitchen. Stripe through your invoicing tool for online payments when you send an invoice by email. They serve different purposes and the cost is similar enough that having both doesn’t add meaningful expense.

The one exception is large invoices. Stripe caps ACH fees at $5 per transaction. Square doesn’t offer the same cap. On a $15,000 HVAC system replacement, Stripe ACH costs $5 while Square card processing costs about $390. For big jobs where the customer is paying online anyway, use Stripe through your invoicing tool instead of Square.

From the Trenches

Square is table stakes at this point. If a customer asks whether you take cards and you say no, they’re calling the next contractor on Google. It doesn’t matter how good your work is if you make it hard to pay for it.

The free reader is the key to getting started. Sign up, plug it into your phone, and the next time a customer asks about cards you say yes. That one moment pays for every processing fee you’ll ever pay. The customers who would have gone with someone else because you only took checks now stay with you.

For pool contractors taking large progress payments, give Square a heads up before running a $20,000 payment. Large transactions sometimes trigger fraud reviews, and a five-minute phone call to Square’s support team before the charge prevents the hold. The payment goes through cleanly, and you don’t have to call the customer back to explain why their card was declined when it wasn’t.

The digital invoices are underrated. When you send an invoice with a pay now button instead of a list of line items and your mailing address, people pay faster. Not because they’re more motivated. Because it takes three seconds instead of finding the checkbook, writing a check, finding an envelope, finding a stamp, and remembering to put it in the mail. The easier you make it to pay, the faster you get paid.

Alternatives

• Cheaper: Cash or check (free but slower and requires chasing)
• Simpler: Venmo or Zelle (free for personal use but not built for business)
• More powerful (and more expensive): Stripe (same rates, better for online invoicing and automation)