Business credit card underwriting varies significantly by issuer — some weigh personal credit heavily, others focus more on business revenue and banking history. Here is what each major issuer actually checks, based on documented approval patterns.
Approval Requirements by Issuer
| Issuer / Card | Personal Credit | Time in Business | Bureau Checked | Notes |
|---|---|---|---|---|
| Capital One Spark Secured | Accessible to fair credit | Any | D&B, Experian | $200 deposit; good entry point below 670 personal credit |
| Capital One Spark Cash | 670+ | 6+ months preferred | D&B, Experian | Flat-rate cash back; reports to business bureaus |
| Chase Ink Business Cash/Unlimited | 680+ | Established preferred | D&B, Experian | Chase 5/24 rule applies — 5+ new accounts in 24 months can trigger denial regardless of credit score |
| Amex Blue Business Cash/Plus | 670+ | Established preferred | D&B, Experian | Amex evaluates prior Amex relationship history alongside credit score |
| Amex Business Platinum/Gold | 700+ | Established, revenue-verified | D&B, Experian | Higher-tier products require stronger business financials, not just personal credit |
| Brex / Ramp | Not checked | 6-12+ months, verifiable revenue | D&B, Experian (after approval, for reporting) | No personal guarantee; underwritten on business bank balance and revenue instead of personal credit |
Key Underwriting Differences
Personal Guarantee vs. No Personal Guarantee
Most traditional bank business cards (Chase, Amex, Capital One at the consumer-facing tier) require a personal guarantee — the owner is personally liable if the business defaults, and personal credit is checked as part of underwriting. Brex, Ramp, and similar fintech-native cards skip this entirely, underwriting purely on business bank balance and revenue.
Application Velocity Rules
Chase's 5/24 rule — generally denying applicants who have opened 5 or more new credit accounts (personal or business) in the trailing 24 months — applies to business card applications as well and is independent of credit score. A 750 FICO score does not override this rule.
Existing Relationship Weight
Amex and Chase both document giving more favorable treatment to applicants with an existing card relationship in good standing, even when comparing otherwise similar credit profiles.
Building your business credit profile first? See the Build Business Credit guide — Step 5 covers exactly when to apply for your first business card based on your PAYDEX score and tradeline history.
Curious about personal card approval odds too? See the Bank Approval Intelligence Database for per-issuer personal card requirements.
