Best Payment Processors for Dental Practices in 2026

TL;DR

For most dental practices, Helcim's interchange-plus pricing wins on cost and transparency: it is the cheapest option in our engine at $10K and $50K a month. Stax's subscription ($199 or more a month at these volumes) overtakes Helcim above about $60K a month of steady volume, and is cheaper at $250K. Square fits practices that want simple setup with no practice management software integration needs. In our engine at $50K a month in person, Clover (2.67%) and Stripe (2.80%) cost 0.63 to 0.76 points more than Helcim (2.04%), about $315 to $380 a month (prices checked Oct 2026).

How we ranked

Six criteria, weighted by what actually moves the P&L on a dental statement:

1. Effective rate at $80K monthly volume with a $280 average ticket (40 percent weight)
2. Contract length, early termination fee, and equipment lease lock-in (15 percent)
3. Recurring billing for in-house dental membership plans (15 percent)
4. Practice management software integration with Dentrix, Eaglesoft, Open Dental, Curve, and Carestream (15 percent)
5. HSA and FSA card acceptance and correct merchant category coding, checked against Visa's interchange pages (10 percent)
6. Settlement speed from authorization to deposit (5 percent)

At a glance

Six providers most likely to surface in a dental processor search, with the numbers an operator actually compares:

Helcim

Helcim runs interchange-plus pricing: card-present at IC + 0.40 percent + $0.08, card-not-present at IC + 0.50 percent + $0.25, with automatic volume tier discounts that drop the markup monthly without renegotiation, per helcim.com/pricing. No monthly fee, no contract, no early termination fee, no equipment lease. The Smart Terminal costs $349, or $32 a month for a year, and deposits arrive the next business morning.

From $50K to $100K a month, our engine puts Helcim at about 2.04 percent in person and 2.55 percent online, using a $50 average sale and a 60 percent credit, 40 percent debit mix (prices checked Oct 2026). Higher dental tickets shrink the share of the fixed fee; your card mix moves the interchange part, which Visa and Mastercard set per their published schedules.

Helcim supports recurring billing for in-house membership plans (recurring payments add 0.4 percent) and ACH at 0.5 percent plus $0.25, capped at $6. Open Dental's manual does not list Helcim among its integrated processors. Helcim offers a Dentrix extension that it says "is not a direct API integration" and is not endorsed by Dentrix. Above about $60K a month of steady volume, Stax is cheaper by our engine's formula.

Best for: independent practices and small groups doing up to about $60K monthly.

Avoid if: you need a direct Dentrix or Eaglesoft integration, which Helcim does not offer.

Stax

Stax charges $99 a month up to $150,000 a year in volume, $139 from $150,000 to $250,000 and $199 or more above that, plus interchange plus $0.08 per card-present transaction and $0.15 per card-not-present transaction, per staxpayments.com/pricing. No percentage markup at all. The flat subscription replaces the per-transaction percentage, which is why the model only wins above a volume threshold.

For example, at $80K monthly with a $280 average ticket (about 286 transactions), Stax costs $199 or more plus interchange plus about $23 in per-transaction fees. If interchange averages 1.55 percent, our estimate, that is about 1.83 percent. In our engine Helcim is still cheaper at $50K a month ($1,020 against $1,055 in person) and Stax is cheaper at $250K ($4,475 against $4,850).

We found no Dentrix, Eaglesoft or Open Dental integration named on Stax's own pages, and Open Dental's manual does not list Stax; ask Stax before you count on one. Recurring billing for membership plans is built in. Hardware is priced on its page: SwipeSimple reader $125, Dejavoo QD4 $310, QD2 $495. Deposits arrive the next business day.

Best for: established practices and small DSOs with steady volume above about $60K monthly, especially with high average tickets from restorative or implant work.

Avoid if: monthly volume sits below $50K consistently, where the subscription cost outpaces percentage savings.

Payment Depot

Payment Depot sells interchange-plus pricing by quote. Its pricing page (archived Oct 2025) lists no monthly or per-transaction price; it says $0 setup and no cancellation fees.

Without published prices we cannot compute its full cost at any volume, so it is not in our cost ranking. Ask for a written quote and compare it against the interchange tables on Visa's site and your own statements.

We could not confirm its practice management integrations; Open Dental's manual does not list it. Ask which systems and terminals it supports before signing.

Best for: cost-focused practices that want interchange-plus pricing and will get the full quote in writing.

Avoid if: you need confirmed PMS integration or a fully published price.

Square

Square charges 2.6 percent + $0.15 in person on its Free plan, 3.3 percent + $0.30 online on Free (2.9 percent + $0.30 on paid plans), and 3.5 percent + $0.15 for keyed transactions, per squareup.com/us/en/pricing. No monthly fee on the Free plan, no contract, no early termination fee. Hardware starts at $59.

For example, a small practice doing $20K a month at a $280 average ticket pays about 2.65 percent on Square's Free plan, or $531 a month. Helcim at interchange + 0.40 percent + $0.08 comes to about 1.98 percent, or $396, if interchange averages 1.55 percent, our estimate. That is about $135 a month, or $1,620 a year, which can be less than the time cost of switching for a solo office.

Square Appointments handles scheduling, and Square's recurring billing covers simple membership plans. PMS integration is limited: no native Dentrix or Eaglesoft connector. Funding lands the next business day at no cost, or the same day for 1.95 percent.

Best for: solo practices under $25K monthly with no PMS integration requirement.

Avoid if: processing more than $35K monthly or running on Dentrix, Eaglesoft, or Curve.

Stripe

Stripe charges 2.9 percent + $0.30 for online card transactions and 2.7 percent + $0.05 in person on its standard plan, per stripe.com/pricing. No monthly fee, no contract. Stripe Terminal hardware runs $59 to $329 depending on model.

In our engine, Stripe online costs $1,750 a month at $50K against $1,275 on Helcim, a gap of about 0.95 points or $475 a month. In person the gap is 0.76 points (2.80 percent against 2.04 percent), or $380 a month at $50K (prices checked Oct 2026).

Stripe is strong on developer tooling and API integration, which matters for custom patient portals or third-party billing platforms. Native PMS integration is rare in dental. Most offices use Stripe only for online estimate deposits or self-pay portals, not the in-office card terminal.

Best for: practices with custom patient-pay portals or tech-forward DSOs building proprietary billing flows.

Avoid if: card volume is mostly in-office and the goal is the lowest effective rate.

Clover

Clover bundles hardware with software plans from $0 (Starter) to $84.95 or more a month (Growth bundles), plus transaction rates of 2.6 percent + $0.10 on Starter, 2.5 percent + $0.10 on Essentials and 2.3 percent + $0.10 on Growth in person, and 3.5 percent + $0.10 keyed, per clover.com/pricing. Clover is also sold through banks and resellers, whose rates and terms can differ from Clover.com, so read what you are actually quoted.

In our engine, Clover on a Growth bundle costs about 2.67 percent in person at $50K a month ($1,335), against 2.04 percent on Helcim. Ask whether the device can be used with another processor before you buy.

Clover integrates with some PMS systems through middleware. Hardware on Clover.com: Clover Go $199, Clover Compact $349 or $16 a month for 36 months, Station Solo bundles from $1,799.

Best for: small group practices wanting a turnkey POS plus payments bundle.

Avoid if: you object to a 36-month hardware term or reseller-set rates.

Verdict

For most independent dental practices running up to about $60K monthly card volume, Helcim wins on transparency, total cost, and absence of contract or hardware lock-in. The interchange-plus pricing with automatic volume tiers means the effective rate gets better as the practice grows, without a renegotiation cycle.

With steady volume above about $60K monthly and a higher average ticket from restorative or implant work, Stax's subscription ($199 or more a month at that volume) can beat Helcim's percentage markup; by our engine's formula it does above about $60K a month in person (at $100K, 1.91% against 1.94%) and at $250K costs $4,475 against $4,850. The crossover point depends on card mix and ticket size; run a side-by-side on the last 90 days of statements before switching.

Square remains a reasonable call for practices under $25K monthly with no PMS integration needs. The flat rate costs more per dollar processed (in our engine $290 against $211 on Helcim at $10K), but the setup is simple.

Stripe and Clover work for specific narrow cases but cost 0.63 to 0.76 points more than Helcim in person at $50K a month in our engine, about $3,780 to $4,560 a year at that volume (prices checked Oct 2026).