Business Credit Cards Don't Have These Protections

What's actually different

• Rate changes. A consumer issuer must give 45 days' notice before raising your APR and generally can't raise the rate on an existing balance without cause. A business issuer can typically change the rate, including on a balance you already carry, without that notice.
• Fraud liability. Under the Fair Credit Billing Act, a personal cardholder's liability for an unauthorized charge is capped at $50, often $0 if the physical card was never lost. That cap doesn't extend to business cards. If a business card is compromised, the business can be on the hook for the full unauthorized amount, and issuers that do offer voluntary fraud protection often require you to report it within a much tighter window, sometimes 24 hours, to qualify.
• Credit report disputes. The Fair Credit Reporting Act's standard consumer dispute process generally doesn't cover commercial credit reports, so correcting an error tied to a business account can be a different, less standardized process.
• Personal liability. Most small business cards are personally guaranteed. Even though the card is billed to the business, you are usually still personally on the hook for the balance if the business can't pay.

What issuers do anyway

None of this means every business card behaves like the pre-2009 era. Several major issuers voluntarily apply CARD Act-style protections, advance notice on rate changes, standard fraud protection, to their business products, even though nothing legally requires it. The catch is that it varies by issuer and isn't guaranteed, so you can't assume your card works this way just because a competitor's does.

What to actually do about it

• Read the cardmember agreement for your specific card's fraud-liability and rate-change terms rather than assuming CARD Act protections apply.
• Ask your issuer directly whether they voluntarily extend consumer-style protections to their business cards.
• Report a lost or compromised card immediately. Since the $50 cap doesn't apply, the faster you report it, the better your position, whatever your issuer's voluntary policy allows.
• Keep business and personal spending on separate cards. It matters for accounting, and it keeps you from carrying a large balance on the card with fewer legal guardrails without realizing it.
• The interest math itself doesn't change, a business card's APR still works the same way. See how credit card interest is calculated and run your numbers with the interest calculator.
• New to business credit entirely? The same "pay it in full" logic covered in when interest actually starts still applies here, the protections differ, the interest math doesn't.
• Wondering if the interest itself is deductible? See when business credit card interest is tax deductible, since that depends on the purchase, not the card.