Tap to Pay turns a technician's own iPhone or Android phone into a contactless card reader. The customer taps their card, Apple Pay or Google Pay on the back of the tech's phone, and the payment goes through, with no separate card reader to buy, charge or lose. It needs a supported phone and a data connection, so keep a pay link or QR code as a backup for jobs with no signal.
How does Tap to Pay work?
Modern phones have an NFC chip, the same chip that lets you pay at a store with your own phone. Tap to Pay uses that chip in reverse: instead of paying, the phone accepts a payment.
On a job, it looks like this:
- The tech finishes the work and opens the invoice in their field app.
- They tap a button to take payment. The amount shows in large type.
- The customer holds their contactless card, or their phone or watch with a mobile wallet, near the top of the tech's phone.
- The phone confirms the payment in a second or two.
- The customer gets a receipt by text or email, and the invoice marks itself paid.
No card number is typed in, and the card details aren't stored on the tech's phone.
Which phones work?
Requirements are set by Apple, Google and the payment processor, and they change over time. As a general guide, using Stripe's published requirements in November 2026:
iPhone
- iPhone XS or later
- A recent version of iOS (beta versions aren't supported)
Android
- A built-in NFC sensor
- Android 13 or later
- A security update installed within the past 12 months
- Google Play services and the Play Store
- Not rooted or modified, with developer options turned off
Many recent Android phones from Samsung, Google, Motorola and others qualify, but not every model. If your crew uses their own phones, check each one before rollout day. Your field app should tell the tech if their phone can't take taps.
What cards and wallets are accepted?
Contactless Visa, Mastercard, American Express and Discover cards, plus phone and watch wallets like Apple Pay, Google Pay and Samsung Pay, according to Stripe's documentation for the US. Some larger payments may ask the customer to enter a PIN on the screen. Cards without the contactless symbol can't be tapped, so you'll still want another way for those customers to pay.
What does it cost?
Your payment processor charges a fee on each card payment. In-person card payments often cost a little less than online card payments. For reference, Stripe's standard published US rates in November 2026 were:
- In-person card: 2.7% plus 5 cents
- Online card: 2.9% plus 30 cents
- ACH bank debit: 0.8%, capped at $5
On a $350 repair at those rates, a tap costs about $9.50 and an online card payment about $10.45. The real savings come from getting paid on the spot instead of chasing an invoice for two weeks. Your own rates depend on your software and processor, so check what you'll actually pay.
On large jobs like system replacements, a bank payment is still much cheaper than any card. Many owners take a card for repairs and steer big invoices toward bank payment.
Why not just use a card reader?
Separate readers still work well, and some businesses prefer them. Tap to Pay's advantages for a field crew:
- Nothing extra to carry or charge. The phone is already in the tech's pocket.
- Nothing to lose. No reader left on a customer's counter.
- No pairing problems. No Bluetooth connection to fight with.
- Every tech can take cards. You don't need a reader per truck.
The trade-offs: it needs a supported phone and a data connection, and it doesn't take chip-insert or swipe cards. For customers whose card isn't contactless, a pay link or QR code covers the gap.
What if there's no signal?
Tap to Pay needs a connection to authorize the payment. In a basement or a rural property with no signal, you need a backup:
- A QR code the customer scans to pay on their own phone, now or later
- A pay link sent by text or email once the tech is back in range
- Cash or check, recorded on the job
Good field apps fall back to these automatically. Train your techs that "no signal" means "show the QR code," not "I'll send you a bill."
Can techs take deposits and tips with it?
Usually, yes. A tech can tap a card for the deposit when the customer approves a quote at the kitchen table, which locks in the job and covers ordered materials. Tips can be offered on the payment screen if you choose to accept them.
How do you roll it out to your crew?
- Check phones. Make a list of each tech's phone model and software version.
- Set rules. Who may take payments? Is there a maximum amount without office approval? Are tips on?
- Practice. Use test mode, if your software offers it, or run a small real payment on your own card and refund it.
- Teach the script. "How would you like to pay today? I can take a tap right here, or text you a link."
- Teach the fallback. No signal or no contactless card means QR code or pay link.
- Review weekly. Check that payments land on the right invoices and receipts go out.
For more habits that shorten the time between finishing a job and getting paid, see our guide to getting paid faster. For other things to look for in the app your techs use, see what to look for in a technician mobile app.
FAQ
Is Tap to Pay secure? It's built on the same contactless technology as store terminals. Card details are encrypted and aren't stored on the tech's phone. Keep phones locked with a passcode and remove access promptly when someone leaves.
Do customers need to download anything? No. They tap their card, phone or watch the same way they would at a store.
Is there a limit on the amount? Limits depend on the card, the issuing bank and your processor, and some larger contactless payments ask for a PIN. Check your processor's rules before you rely on taps for big tickets. For big invoices, bank payment is usually the better option anyway.
Can I refund a Tap to Pay payment? Yes, through your software or processor, back to the same card. Most owners keep refunds an office-only task.
How ServFlo helps
The ServFlo Tech app includes Tap to Pay through Stripe on supported Android phones, with iPhone support coming as soon as Apple approves it for the app, so technicians can take contactless cards, Apple Pay and Google Pay for an invoice or a quote deposit, and send the customer a receipt by text or email. With no signal, the app shows a pay-later QR code instead. Charging a customer's saved card from the field is off unless the owner turns it on for technicians. Payments are direct charges on your own Stripe account, and Settings shows your processing rates. See payments and the technician app, and the pricing page for plans.