Payments for Day Spas: What Stripe, Square, and the Big Processors Actually Cost You

The short version: spas take bigger tickets than salons — $120 massages, $800 packages — which means the wrong processor costs you more per transaction, and the gift-card liability has its own fee traps. On an $800 package, the gap between the cheapest and priciest way to take the money is over $15. Here is what Stripe, Square, and the big processors actually cost a day spa. Also see Day Spas, AI for Day Spas, and Tech for Day Spas.

The fee table: what each processor actually charges you

Rates checked October 2026. Square: 2.6% + 15¢ in-person, 2.9% + 30¢ online, 3.5% + 15¢ keyed/stored. Stripe: 2.7% + 5¢ in-person, 2.9% + 30¢ online, 3.4% + 30¢ stored. GlossGenius: 2.6% flat on everything, no keyed penalty. Fresha: 2.29% + 20¢ card-present, 2.79% + 20¢ online, 3.3% + 20¢ keyed. Interchange-plus: ~0.3% markup, effective ~2.0% card-present.

$120 massage (reader): Square $3.27 · Stripe $3.29 · GlossGenius $3.12 · Fresha $2.95 · Interchange-plus ~$2.40

$200 facial (reader): Square $5.35 · Stripe $5.45 · GlossGenius $5.20 · Fresha $4.78 · Interchange-plus ~$4.00

$200 facial (keyed in): Square $7.15 · Stripe $7.10 · GlossGenius $5.20 · Fresha $6.80 · Interchange-plus ~$5.60

$800 5-pack (invoice, online): Square $23.50 · Stripe $23.50 · GlossGenius $20.80 · Interchange-plus ~$16.30 · ACH $5.00

The $800 row is where spas diverge from salons: Square vs ACH is $23.50 vs $5.00 — an $18.50 tax on taking the package by card. Sell ten 5-packs a month and the card-vs-ACH choice is $2,220 a year. Offer ACH as the default for packages; keep cards as the convenience option.

The break-even: big tickets flip early

Big tickets flip early. IC+ plans carry ~$10-25/mo in fixed costs; flat-rate plans carry none. At $10,000/mo in cards: Square in-person costs ~$275. Interchange-plus at ~2.0% effective costs ~$200 + ~$20 = ~$220. Savings: ~$55/mo from day one. At $20,000/mo (a 4-room spa at decent utilization): Square ~$550; IC+ ~$400 + $20 = ~$420. Savings: ~$130/mo, ~$1,560/yr.

The flip for spas is around $6,000-8,000/mo — most 3+ room spas clear it. Below that, GlossGenius's flat 2.6% with no keyed penalty is the sweet spot. Above it, interchange-plus, and the gap widens with every package sold.

The second flip is card-vs-ACH on packages: a $800 package costs $16-23 in card fees versus $5 by ACH. Ten packages a month is $110-180/mo in avoidable fees. Price the package for ACH, offer the card as convenience. Clients buying $800 of wellness do not flinch at a bank transfer; they flinch at a 3% surcharge they were not expecting.

The workflow checklist the big processors fail

Run every processor against this checklist before you sign:

• Package billing. Selling a $800 5-pack means one large charge plus session-by-session redemption tracking. The processor must handle the large ticket without triggering risk holds — Square's aggregated-risk model is documented to freeze legitimate accounts on outlier transactions, and an $800 package is an outlier.
• Deposits on card on file. The 90-minute-service deposit is the policy that protects the table. GlossGenius (2.6% flat, stored included) and Fresha handle it natively. Square charges 3.5% + 15¢ on stored cards. Stripe: build it yourself.
• Gift-card processing. Gift cards sold online are card-not-present transactions — Square's 2.9% + 30¢, Stripe's 2.9% + 30¢, GlossGenius's flat 2.6%. Sell gift cards through the booking platform so issuance, redemption, and liability track in one place.
• Membership billing. A $89/mo membership is recurring card-on-file billing — Square's 3.5% + 15¢ stored rate applies. That is $3.27/mo per member versus $2.31 at GlossGenius's flat rate. At 100 members, the stored-card rate is a $96/mo decision.
• The keyed scenario. Portable readers in treatment rooms die. Keyed: Square 3.5% + 15¢, Stripe 3.4% + 30¢, Fresha 3.3% + 20¢, GlossGenius 2.6% flat. On a $200 facial, that is $7.15 vs $5.20.
• Marketplace commissions. Fresha's marketplace takes 20% ($6 minimum) on new clients. On a $120 massage, that is $24 — compare it against your own review campaign, not against 2.6%.

The honest verdict on each processor

Square — the starter kit with a ceiling. Fine under ~$6k/mo: free booking tools, familiar hardware. But the 3.5% + 15¢ stored rate taxes both your deposit policy and your membership billing, and $800 packages are exactly the outlier transactions that trigger holds. Steelmanning Square: zero monthly cost, fastest path to open doors.

Stripe — the engine without the car. Great API, no spa workflow: no native deposits, no package tracking, no gift-card liability ledger. Custom software material only.

GlossGenius — built for this business. 2.6% flat on everything including keyed and stored, deposits and packages native, from $24/mo (Practice Essentials at $148/mo if you add clinical services). The catch: team features gate behind Gold/Platinum — price the real tier.

Fresha — cheapest in-person rate, watch both catches. 2.29% + 20¢ card-present is the lowest here; $19.95/$14.95 per team member is cheap. The catches: 20% marketplace commission and 3.3% + 20¢ keyed. Great if clients come from your marketing.

Adyen, Chase Payment Solutions, Fiserv, Global Payments, Worldpay — absent. Quote-based enterprise sales, zero spa-specific content: nothing on packages, gift-card liability, or membership billing. Not competing for your business.

How a spa actually wires this up: notes from Finix's public docs

ClaroPro pairs bilingual voice-to-ticket with payments — the relaxation-room workflow (speak the deep tissue, the aromatherapy add-on, the package conversion; text the link; paid before she leaves the room) runs on one system.

For the plumbing, Finix's public docs describe the patterns that matter for spas. Tokenized payment instruments for card-on-file deposits and membership billing; subscription-style recurring billing as a standard pattern rather than a bolt-on; ACH transfers for package balances over $500 at ~$2 instead of card rates; separate merchant accounts per location so location two's launch does not re-trigger risk review on location one; and webhooks on failed payments that fire the update-card text before the next membership draft. Standard infrastructure documented at docs.finix.com. Knowing these are commodities is how you spot which booking platforms implement them and which ones charge extra for the word "enterprise."

FAQ

Should package balances go on ACH? Yes for balances over $500 — $5 versus $16-23 in card fees. Offer ACH as the default, cards as convenience.

Can I surcharge credit cards? State-dependent; several states restrict or ban it. Most spas do better pricing the menu for cards and offering a small cash discount.

How do I handle gift-card breakage? Track every card: sold, redeemed, expired — in the booking platform, not on paper. Unclaimed balances are regulated in some states; know your state's gift-card rules before you count breakage as revenue.

Do I need deposits for 60-minute services? The confirmation sequence plus card on file is usually enough at $120. Require deposits for 90-minute services and packages — match the friction to the ticket.

What about chargebacks on packages? The signed package agreement, the per-session redemption record, and the confirmation texts are your three documents. Processors side with the merchant who has all three.

The order: 1) deposits on every 90-minute service and package, on a processor with no keyed penalty. 2) Interchange-plus above ~$8k/mo — spas hit the flip fast on big tickets. 3) ACH for package balances over $500. 4) Gift cards sold through the booking platform so the liability tracks itself. Then read Tech for Day Spas — the subscription math per room decides the rest.