Can You Require a Minimum Purchase Amount for Credit Cards?
By Yan Payments
Can a merchant legally require a minimum purchase for credit cards?
Yes. Federal law lets you set a minimum purchase amount for credit card transactions, as long as it’s $10 or less and applies the same way to every credit card brand and issuer. This isn’t a gray area or something card networks merely tolerate. It comes from an actual statute, and Visa, Mastercard, and the other networks have built it directly into their own merchant rules, so using it doesn’t put you in breach of your card agreement.
Where the $10 cap actually comes from
The rule traces back to the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, which amended the Electronic Fund Transfer Act to let merchants set a minimum dollar amount for accepting credit cards. The FTC’s own guidance for retailers describes it plainly: a payment card network can’t stop you from setting a minimum, as long as it’s the same for every credit card issuer and network and doesn’t exceed $10. The law gives the Federal Reserve the authority to raise that cap by regulation. As of this writing, it hasn’t: $10 has been the ceiling since the rule took effect in 2010.
What “can’t differentiate” means in practice
You can’t set a $10 minimum for Visa and Mastercard while leaving American Express or Discover uncapped because their fees run higher. You also can’t post a $5 minimum for Bank of America-issued cards and $10 for everyone else. One minimum, applied the same way across every credit card you accept, is the rule. You’re still free to set a different policy for cash versus card entirely; the uniformity requirement only applies within the universe of credit card transactions.
Does this $10 rule apply to debit cards too?
No. The FTC’s guidance describes this specific allowance as covering credit card acceptance, not debit. If you want to discourage small debit transactions the same way, you’re outside the protection this particular federal rule gives you, and you’d need to check your processor’s and card network’s own merchant rules before copying your credit card minimum onto debit purchases. Don’t assume the two work the same way just because they’re both plastic.
A quick reference
| Card type | Minimum allowed under this rule | Cap |
|---|---|---|
| Credit card, any brand | Yes | $10, same across all issuers and networks |
| Debit card | Not covered by this rule | Check your processor’s card network rules separately |
| Prepaid, EBT, or gift cards | Not covered by this rule | Check your processor’s card network rules separately |
Why a small swipe costs you more than it looks like
Say your processing rate runs something like 2.6% plus $0.10 per transaction, a common structure for small merchants (your actual rate may run higher or lower, so check your own statement). On a $3 coffee, that’s about $0.18 in fees, roughly 6% of the sale. On a $20 ticket, the same formula works out to about $0.62, closer to 3%. The percentage fee stays flat, but the flat per-transaction piece doesn’t shrink with the sale, so the smallest tickets eat the biggest share of their own revenue in fees. That math is exactly why a minimum purchase rule exists as an option in the first place, not because card companies wanted to punish small purchases, but because flat per-swipe costs don’t scale down with ticket size.
If the real goal is discouraging tiny card swipes generally
A minimum purchase amount is one tool, but it’s a blunt one, since it turns away a sale outright rather than just pricing it differently. If what you’re actually trying to do is recover the cost of swipe fees on small transactions rather than refuse them, a compliant surcharge or cash-discount program is worth comparing against a flat minimum. We’ve written separately about how surcharge and cash-discount rules work in California, including the disclosure requirements that come with either approach.
A checklist before you post a sign at the register
- Set one minimum for all credit cards, not a scale by brand or issuer.
- Keep it at $10 or under.
- Post the minimum clearly at the point of sale or checkout; card network rules generally expect disclosure before the transaction, not a surprise after someone’s already swiped.
- Don’t apply the same minimum to debit without separately confirming your processor’s and network’s rules on debit transactions.
- If swipe-fee cost recovery is the actual goal, compare a minimum against a compliant surcharge or cash-discount program before picking one.
If you want help setting this up correctly on your Clover terminal, or sorting out whether a minimum or a surcharge program fits your business better, reach out and we’ll walk through it. This is general information about how the federal rule and card network rules work, not legal advice for your specific situation.
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