Duet shows your customer two real prices on every invoice — a lower one for bank, a higher one for card. They choose. You net the cash price. It plugs into your Square account in about five minutes.
That’s $30 on a $1,000 invoice. $3,000 on $100,000 of monthly card volume. Real money you earned and don’t keep. Duet recovers it — legally — without switching processors or surprising your customer.
Not a surcharge added at checkout. Not a fee revealed late. Two real prices, disclosed end-to-end — the customer makes an informed choice. That’s what makes Duet legal in all 50 states.
No interchange jargon. No “PCI” anything. You set the price you want deposited, and the rest is wired up for you.
Surcharges are heavily regulated, banned outright in several states, and require network registration and tricky disclosure. Dual pricing is different — two prices from the start, disclosed at every touch point — and it’s legal in all 50 states.
Duet builds the disclosures into your invoices, emails, payment pages, and receipts. You don’t have to figure out the legal part — you just send invoices.
No long contract. No setup fee. ACH is fee-free from Duet’s side, every time — Square’s standard ACH rate still applies, capped at $10.