Credit Compound
Mastercard
Mercury IO
Business · No AF

Mercury IO Mastercard

1.5% on everything for companies that already bank with Mercury.

7.8/10MercurybusinessCash Back
View Current OfferBest for: Startups already banking with Mercury

Welcome Bonus

None

No public welcome offer

Spend Requirement

None

Annual Fee

$0

No FTF

Credit Score

Business

financials, no personal guarantee

Historical Offers Chart

Every public offer change we've tracked. Hover for details, timing your application is worth hundreds of dollars.

Sign-Up Bonus (value)Spending Requirement ($)
$0$0$0$0$0$0$0.375$0.75$1.125$1.52026-01Sign-Up BonusSpending Requirement ($)

Last verified 2026-06-11 · spot an outdated offer? Tell us in the comments.

Earning Rates

  • 1.5xAll settled purchases

Credits

No statement credits, this card wins on earn rates, not coupons.

Benefits

  • No personal guarantee or personal credit pull
  • Most US businesses qualify from day one with Mercury
  • Higher limits and flexible payment schedules unlock at $15,000 in Mercury balances
  • Unlimited virtual cards with spend controls

Why it earns its spot

  • +Flat 1.5% with no category tracking
  • +Tight integration with Mercury banking, all in one dashboard
  • +Builds business credit history from day one

Where it costs you

  • Requires a Mercury account; the card is a banking add-on, not standalone
  • Limits are tied to your deposit balance
  • No category bonuses for travel-heavy spenders

The Compound Verdict

If your startup already banks at Mercury, taking IO is close to free money: 1.5% on everything with no fee and no personal guarantee. If you bank elsewhere, the card alone is not a reason to switch since Ramp matches the rate without the deposit relationship. A banking perk done well rather than a destination card.

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