Flux gives nutritionists cards, ACH, and recurring billing through one integration, with hosted fields and SAQ-D Level 2 PCI coverage that keep sensitive data off your practice systems.
Why nutritionists choose Flux
PCI coverage without the burden
Card data is captured in origin-isolated iframes, so your practice is not running an audited card environment.
Recurring and plan billing
Charge memberships and payment plans automatically instead of re-running cards by hand.
Real-time settlement
Card payments settle in one to two business days so the practice is not waiting on cash flow.
How nutritionists get paid
Nutritionists typically take cards for copays and point-of-care payments, ACH for larger balances and plans, and can run recurring charges for memberships, all through Flux.
A typical Flux setup for nutritionists
Most nutrition practices never touch a terminal: consults are booked online, sessions happen over video or in a rented room, and everything is paid by card remotely. An initial consult is paid at booking through a payment link. Structured programs, a twelve-week plan for example, are sold as one up-front charge or as scheduled installments on a stored card. Ongoing coaching runs as a monthly subscription that renews until the client cancels.
Because there are no setup fees, monthly fees, minimums, or contracts, a practice of eight clients costs nothing to keep running in a slow month, which is the honest reality of a growing solo practice. Cards settle in one to two business days. QuickBooks sync keeps program revenue separate from one-off consults, and receipts carry dates of service so clients pursuing out-of-network reimbursement can attach them to a superbill.
What nutritionists should watch
Programs need a refund clause written before anyone pays: what happens if the client stops at week four of twelve, whether coaching calls used are deducted at the single-session rate, and whether meal plans already delivered are refundable at all. Ambiguity here is how a motivated-in-January client becomes a dispute-in-March client. Installment plans soften this, since a client who stops can simply stop being billed for future installments under your stated terms.
Subscription renewals fail quietly when cards expire, and a coaching client whose renewal failed is often a client drifting away, so treat a decline as a relationship signal and reach out personally. Make cancellation easy and documented: a client who cancels by email is a lost subscription, but a client who cannot figure out how to cancel is a chargeback. Everything you sell is card-not-present, so clear written terms are your only paper trail.
Simple, transparent pricing
Flux charges a flat 2.9% plus 30 cents per transaction, with volume discounts for higher-volume nutritionists and the option to pass the fee to the customer at checkout where local surcharging rules allow. No setup fees and no contracts. Accounts processing under $100,000 a year in card volume may be subject to a $20 monthly account fee.
Frequently asked questions
How do nutritionists accept payments with Flux?
Nutritionists accept credit and debit cards, ACH bank transfers, and stablecoins through one Flux integration, with drop-in hosted fields that keep card data off your own systems.
What does Flux charge nutritionists?
A flat 2.9% plus 30 cents per transaction, with volume discounts for higher-volume merchants and no setup fees or contracts. Accounts processing under $100,000 a year in card volume may be subject to a $20 monthly account fee. You can also pass the processing fee to the customer at checkout where local surcharging rules allow.
How fast do nutritionists get their money?
Card payments settle in one to two business days and ACH in one to three business days. Stablecoin payments go to your wallet instantly.
I only see a handful of clients a week. Does Flux make sense at my size?
Yes. There are no setup fees, monthly fees, minimums, or contracts, so the account carries no overhead in a slow month. You pay the flat 2.9% plus 30 cents when a client actually pays you, and nothing when they do not.
How should I structure billing for a twelve-week program?
Either one charge at enrollment or scheduled installments on a stored card, with the refund terms for early exit written into the program agreement before anyone pays. Installments have a practical virtue: a client who stops simply stops being billed for future installments under your stated terms.
Can my clients get reimbursed by insurance if they pay me directly?
Some can, through out-of-network benefits, by submitting a superbill to their insurer. Your role on the payment side is a clean receipt with dates of service and amounts that match the superbill, which your Flux receipts provide.
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