A San Francisco processor that charges a monthly subscription — from $250 — and takes zero markup on interchange, billing a flat $0.08 or $0.15 per transaction instead. Excellent economics above roughly $1m a year, wrong below it, and with a public track record still too thin to lean on.
Tell them what you need. This goes to Finix only.
Software platforms, marketplaces and vertical SaaS embedding payments, and direct merchants processing well over $1m a year who want interchange passed through at cost with the processor's margin isolated in a subscription line they can see.
Finix inverts the usual pricing model. Instead of a percentage markup on every sale, it charges a monthly subscription starting at $250 and takes 0% markup on interchange and card network fees, adding a flat $0.08 per card-present transaction and $0.15 per card-not-present transaction. Amex is 0.30%. ACH is 1% per same-day entry with a $1 minimum and a $10 cap. Disputes are $30. That structure is genuinely better than a percentage markup once volume is high enough for a fixed fee to be trivial, and genuinely worse below that point. Finix has been a card-network-certified processor since May 2023 rather than a reseller, with direct connections to Visa, Mastercard, Amex and Discover through banking partner Pathward. The caution is that its public merchant record is thin and mixed: a strong Capterra score from a small sample, an essentially empty BBB file, and complaints from platform partners about underwriting and loss allocation.
You process under roughly $1m a year. A $250 monthly floor is $3,000 a year before a single transaction, and a flat-rate provider or a conventional interchange-plus account will cost you less. Skip it too if you need a turnkey POS and hardware ecosystem out of the box, or if you want a long public complaint record to check before you commit — Finix does not have one yet.
The headline take, the audiences it's right (and wrong) for, and the genuine differentiators behind the verdict.
A San Francisco processor that charges a monthly subscription — from $250 — and takes zero markup on interchange, billing a flat $0.08 or $0.15 per transaction instead. Excellent economics above roughly $1m a year, wrong below it, and with a public track record still too thin to lean on.
The margin is a subscription, not a percentage. That makes the cost of the processor visible as its own line item and stops it growing simply because your sales grew, which is the structural complaint against percentage pricing.
Real-world cost at three volumes, plus the rates, fees, payouts, and contract terms that drive them.
Estimated annual cost at three realistic processing volumes, using Finix’s published online rate plus monthly fees. Real costs vary with average transaction size, chargeback rate, and any negotiated terms.
Finix states on its own site that it was founded in 2015, and it is run from San Francisco with further offices in Chicago, Orlando and Toronto. It spent its first years selling payment facilitation infrastructure — the plumbing that let a software platform become its own payment facilitator rather than handing the payments relationship to a third party. In May 2023 it became something different: Visa, Mastercard, American Express and Discover certified it as a processor, with direct connections to all four networks and Pathward Financial as its banking partner. It now processes rather than resells.
The pricing reflects that. Finix charges a monthly processing subscription starting at $250 and takes 0% markup on interchange and card network fees. Per transaction it adds a flat $0.08 card-present or $0.15 card-not-present, with American Express at 0.30%. ACH is 1% per same-day entry, floored at $1 and capped at $10. Disputes are $30 whether card or ACH. Subscription billing is 0.4%, the account updater $0.55 per update, network tokenization $0.15, a Plaid connection $3.
Percentage markup has one property merchants rarely price in: it grows with the business without the processor doing anything more. A 0.30% markup on $500,000 a year is $1,500; on $5m it is $15,000, for identical work. Finix's subscription breaks that link. The margin sits on its own line, you can see it, and it does not scale with your success.
The same property is what makes it wrong for smaller merchants. $250 a month is $3,000 a year before a single sale. A business doing $300,000 a year would pay about 1% of revenue in subscription alone, on top of interchange — worse than almost any flat-rate provider. Finix's own tiering, which moves to custom pricing above $1m in annual volume, is a fair signal of where it expects the model to start paying. Below roughly that line, this is the wrong shape of deal.
The published card is otherwise unusually complete. Dispute fees, ACH returns, validation, tokenization and account updater charges are all listed — the fees most providers keep off the website. Two things are conspicuously missing: any contract term, and any settlement time. Payout schedules are described as customisable rather than quoted, and no notice period or termination fee appears anywhere on the pricing pages.
Finix is well funded and visibly active. It raised a $75m Series C in October 2024 led by Acrew Capital and co-led by Leap Global and Lightspeed, with Citi Ventures and Tribeca Venture Partners joining, and its newsroom has carried product and partner announcements through mid-2026 — embedded payouts reaching roughly 10,000 nonprofits for the platform Change, payments for more than 57,000 contractors via Contractor Plus, and a rebuilt dashboard in August 2026. Reported totals for capital raised to date differ substantially between databases, so we are not quoting one.
Merchant-side evidence is thinner. Capterra shows 4.7 out of 5 across 42 verified reviews, with reviewers repeatedly singling out implementation support during the setup weeks; note that Capterra earns referral fees from vendors it links to. The BBB profile carries an A+ rating, but the file is close to empty — one customer review, a single one-star account from a platform describing serious operational problems, a business start date of 2001 that matches nothing else on record including Finix's own statement that it was founded in 2015, and a category of 'Farm Management Software'. An A+ on a file that thin means very little in either direction.
The negative reports deserve a careful reading, because they are thinner than they first appear. The loudest source is an anonymously operated website devoted entirely to complaints about Finix, alleging that fraudulent merchants cleared onboarding and that the resulting losses were pushed onto platform partners with no ability to approve or reject those merchants. We could not corroborate any of it, and a site of that construction is as likely to be a competitor's search play as a merchant's account. The one federal case we found on the docket, Satori Enterprise Holdings, LLC v. Finix Payments, Inc. (M.D. Fla., 6:25-cv-00934), was an ordinary contract dispute filed in May 2025 and dismissed in July 2025 — it is not evidence of the allegations above, and it is not evidence of a pattern. What remains is a genuinely thin record: not a bad one.
Card-not-present, e-commerce, and online payments
Card-present retail and point-of-sale transactions
Manually entered card-not-present transactions
Cross-border and foreign currency transactions
Recurring monthly account fee
Per-incident chargeback dispute fee
Fee for canceling before contract end
Regular deposit schedule to your bank account
Faster deposit option (may have additional fees)
Required commitment period
Not published. The pricing pages state neither a term nor a termination fee
How to terminate your account
Not published — ask for the term, notice period and any termination charge in writing before signing, since none of it appears on the public pricing pages.
Estimate your monthly costs
Pick a published plan, enter your volume and transaction profile, and we’ll compute the math the same way an underwriter would. Real costs vary with card mix, chargeback rate, and any negotiated terms.
Flat all-in rate (interchange built in)
Products, integrations, payment-type coverage, security posture, and how their support holds up in practice.
Full-stack card acceptance as a certified processor with direct connections to Visa, Mastercard, American Express and Discover, rather than as a reseller sitting on someone else's platform.
Same-day ACH entries, account validation, returns handling and instant payouts, with a Plaid integration for bank account linking.
The original Finix product: onboarding, split transactions and payouts, and white-labelled payment infrastructure that lets a software platform or marketplace monetise payments under its own brand. Recent examples include embedded payouts to roughly 10,000 nonprofits for the platform Change, and payments for more than 57,000 contractors through Contractor Plus.
Hosted payment links, low-code checkout pages and a virtual terminal for businesses without developers, alongside hosted fields that keep PCI scope minimal.
Recurring billing plus card account updater and card network tokenization to reduce involuntary churn from expired and reissued cards.
You pay a monthly processing subscription starting at $250, and Finix passes interchange and card network fees through at 0% markup. On top of that you pay a flat $0.08 per card-present transaction and $0.15 per card-not-present transaction, and 0.30% on American Express. ACH is 1% per same-day entry with a $1 minimum and $10 maximum. Disputes are $30. Businesses above $1m in annual volume are quoted custom pricing, and Finix notes the subscription can rise on notice if volume thresholds are exceeded.
We evaluate every payment processor independently — Payment Review does not accept paid placement. Our analysis combines hands-on product testing where possible, public pricing and policy documents, third-party reviews from BBB, Trustpilot, Google, and G2, and employee feedback from sites like Glassdoor and Indeed. We update reviews on a rolling cadence and flag the next review date so readers know how fresh the analysis is.
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