Flux lets engineering firms take cards for convenience, ACH for larger invoices where the economics are friendlier, and pass the processing fee to the client at checkout where local rules allow.
Why engineering firms choose Flux
ACH for large invoices
Route retainers and big invoices over ACH where the per-transaction economics beat cards.
Pass the fee where allowed
On consumer pass-through, the processing fee is added to the client's total at checkout, where local surcharging rules allow.
Books that reconcile
A QuickBooks sync keeps engineering firms from retyping every payment into the accounting system at month end.
How engineering firms get paid
For engineering firms, ACH usually fits large invoices and retainers, cards suit smaller or on-the-spot payments, and Flux handles both through one integration with a clean record for your books.
Simple, transparent pricing
Flux charges a flat 2.9% plus 30 cents per transaction, with volume discounts for higher-volume engineering firms and the option to pass the fee to the customer at checkout where local surcharging rules allow. No setup fees, no monthly fees, and no contracts.
Frequently asked questions
How do engineering firms accept payments with Flux?
Engineering Firms 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 engineering firms?
A flat 2.9% plus 30 cents per transaction, with volume discounts for higher-volume merchants and no setup fees, monthly fees, or contracts. You can also pass the processing fee to the customer at checkout where local surcharging rules allow.
How fast do engineering firms 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.
Ready to get engineering firms paid with Flux?
Cards, ACH, and stablecoins in one platform. Apply in about two minutes.
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