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

Your tickets are weird: $65 a visit, $1,300–$1,800 for a care plan, $5,000–$15,000 on a PI lien. Stripe, Square, Adyen, Chase, Fiserv, Global Payments, and Worldpay priced for coffee shops. What their published rates cost you at real chiro ticket sizes — and the workflows their generic pages ignore: visit packages up front, card-on-file for cash plans, HSA/FSA cards, and PI receivables. Rates checked October 2026. Also see Chiropractors, AI for Chiropractors, and Tech for Chiropractors.

The fee table: what each processor actually charges you

Square (Free plan): 2.6%+$0.15 in-person, 3.3%+$0.30 online, 3.5%+$0.15 stored/keyed. Stripe: 2.7%+$0.05 in-person, 2.9%+$0.30 online, 3.4%+$0.30 card-on-file. Clover (Fiserv): 2.3–2.6%+$0.10 in-person, 3.5%+$0.10 keyed/online. Interchange-plus = 0.3% markup estimates.

$65 visit (in-person): Square $1.84 · Stripe $1.81 · Interchange-plus ~$1.41

$65 visit (card on file for cash plans): Square $2.43 · Stripe $2.51 · Interchange-plus ~$1.41

$1,560 care plan, paid in full (in-person): Square $40.71 · Stripe $42.17 · Interchange-plus ~$31.35

$1,800 care plan (card on file): Square $63.15 · Stripe $61.50 · Interchange-plus ~$36.15 · ACH (0.8%, capped at $5) $5.00

At volume: 400 visits/month at $65 = $26,000/month in card revenue = $312,000/year. Square in-person: ~$8,830/year. Interchange-plus: ~$6,790/year. Difference: ~$2,040/year — modest, because your tickets are small. The real money is in the packages: 10 paid-in-full $1,560 plans a month on stored cards costs Square ~$7,578/year vs ~$4,338 on interchange-plus. Every processor rides on payments infrastructure — companies like Finix build the rails moving card money from your patients' banks to yours.

The row your statement hides: the per-visit billing trap. Billing 24 visits individually at 3.5% stored-card costs ~$58 in fees on a $1,560 plan. Collecting it once up front costs ~$41 in-person — and you get the cash 24 visits earlier. Per-visit billing is the most expensive way to collect a care plan, in fees and in dropout risk.

The workflow checklist the big processors fail

Where chiro practices actually lose money:

• Packages paid up front. The $1,560 plan collected at the report of findings — in-person rate, cash today. Per-visit billing at stored-card rates is the most expensive collection method you have.
• Card on file for cash plans. The family plan, the maintenance plan — auto-billed monthly. Stripe 3.4%+$0.30 and Square 3.5%+$0.15 on every cycle; their generic pages never mention stored-card rates.
• HSA/FSA cards. Chiropractic is HSA/FSA-eligible, and these cards run on your normal terminal. January through March is HSA season — patients with fresh balances buy care plans. Market to it in December.
• PI liens are not card payments. The $8,000 PI case settles in 18 months via attorney lien — no processor helps here. What helps: tracking the lien like the receivable it is, with follow-up automation. Don't run PI balances through card processing hoping for the best.
• No-show fees. $25–$50 with a card on file and signed consent. In a high-frequency practice, no-shows are a scheduling tax — price the tax.
• ACH on paid-in-full plans. $5 flat on $1,560 vs $63 stored-card on Square. “Card today, or bank transfer and keep the $58” — their savings, your margin. Settles in 3–5 days.
• Dual pricing. A cash/check price and a card price, both displayed — legal in all 50 states, unlike surcharging (banned in Connecticut and Massachusetts). On small tickets the 3% card price is the difference between profit and paperwork.
• Refunds cost you twice. Stripe and Square don't return the original fee. Structure plan downgrades as credit adjustments, not refunds, wherever your agreement allows.

Flat-rate vs. interchange-plus: the break-even at $65 visits

Chiro is the friendliest case for flat-rate in this whole cluster: at $65 a visit, the gap between Square's $1.84 and interchange-plus's ~$1.41 is 43 cents. Across 400 visits a month, that's ~$172/month — real money, but not life-changing.

The break-even that matters is on packages, not visits. Ten $1,560 paid-in-full plans a month: Square in-person costs ~$4,885/year in fees; interchange-plus ~$3,762. The ~$1,100/year gap is modest — until you add stored-card billing on the plans you didn't collect up front, where the gap triples. The honest advice: fix the collection workflow first (paid-in-full at the report of findings), then optimize the rate. A practice collecting 80% of plans up front on Square beats a practice billing per-visit on interchange-plus, in fees and in cash flow.

Adyen, Chase, Fiserv, Global Payments, Worldpay: quote-based, zero chiro guidance. If your volume is under ~$30k/month, their sales process costs more in time than the rate saves. Past that, interchange-plus in writing.

The honest verdict on each processor

• Square: genuinely fine for most chiro practices — small tickets, in-person, simple. Outgrow it when packages and stored-card billing become the business. No chargeback fees is a plus.
• Stripe: overkill for a cash-practice counter; useful if you're building online plan sales or multi-location billing. Developer tool, not a front-desk tool.
• Clover/Fiserv: fine hardware, but 3.5%+$0.10 on stored cards punishes the package model. Negotiate or skip.
• Adyen: enterprise; not a chiro product.
• Chase, Global Payments, Worldpay: quote-based. Worth the call past ~$30k/month; not before.
• EHR-integrated payments (ChiroTouch, Genesis): convenient, Square-priced. The ledger posting is worth real front-desk hours — fine for year one and beyond at chiro volumes.
• Interchange-plus via an independent ISO: the answer when packages dominate and volume crosses ~$30k/month.

ClaroPro pairs bilingual voice-to-invoice with payments — the care-plan invoice and payment link leave the report of findings before the patient does.

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

Finix's public docs at docs.finix.com are the blueprint for package billing done right:

Card on file — tokenization. The family authorizes the plan at the report of findings; you never store the card number. Finix's Tokenization Forms embed a PCI-compliant form — the card number lives only inside Finix's iframe, your server gets a token starting with “TK” and creates a Payment Instrument on the patient's Identity via POST /payment_instruments. Monthly maintenance plans bill the stored instrument. Account Updater refreshes reissued cards.

Packages without a developer. Payment Links you text the patient — no integration — and Invoices with partial payments. The paid-in-full $1,560 plan: one link, collected today.

Authorize now, capture per visit — or don't. For per-visit billing, POST /authorizations can hold the plan balance and capture per visit — but the better move is collecting up front and tracking visits as credits. Authorize-and-capture exists for the edge cases, not the business model.

Webhooks close the loop. Finix fires an event on every settlement, so visit credits decrement and the ledger updates without anyone checking a dashboard.

The catch: Finix is infrastructure: dashboard tools work with no code; API flows need a developer. Test at finix.sandbox-payments-api.com first. You don't open a Finix account the way you open Square — its rails reach you through a provider built on top, the same way your tables run on hydraulics you didn't build.

FAQ

Should I bill per visit or sell packages? Sell packages, paid up front. Per-visit billing costs more in fees, collects slower, and dies at visit 4. The package is the product; the visit is the delivery.

Do HSA/FSA cards work for adjustments? Yes — chiropractic is an eligible expense, and the cards run on your normal terminal. Market HSA season (January–March) in December.

How do I handle PI payments? Through the attorney lien, not your card terminal. Track it as the receivable it is, with follow-up automation — and document like opposing counsel is reading, because they are.

Can I surcharge for credit cards? In most states yes, but dual pricing (cash price and card price, both displayed) is cleaner — legal in all 50 states, no bans to track like Connecticut and Massachusetts have for surcharging.

What's the cheapest way to take a $1,560 plan payment? ACH — about $5 flat vs $63 stored-card on Square. Offer it at the report of findings: “card today, or bank transfer and keep the $58.”

Will switching processors interrupt the practice? Not with a one-week overlap. Stored cards for maintenance plans need re-tokenization — migrate deliberately, then cancel.

The processor decision is worth roughly $2,500–$4,000 a year; the workflow decision (packages paid up front, card on file, HSA season marketing) is worth more. Sell the plan and collect it at the report of findings — AI for Chiropractors shows the voice-to-paid package close. Once a year, run this fee table against your last 12 months of statements. Re-check these numbers yearly.