Image of the IO card at an angle with IO logo line drawing in the background

Get growing with the IO credit card

Unlock unlimited cashback, higher credit limits, and spend management tools. Exclusively for Mercury account holders.

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You must have an account with Mercury and meet deposit minimums to become eligible for IO.

Engineered for the startup journey

1.5% cashback on all spend

Easy and straightforward rewards

Higher credit limits for startups

Harness more spending power

Low cash balance minimum

Qualify with a $25K balance

Instant virtual cards for your team

Start spending immediately

Spend management tools

Maintain control as you scale

Simplify your finances

Consolidated banking and cards

Scale confidently with powerful spend management tools

Physical IO card with virtual cards in the background

Cards for your team

Issue as many cards as you need to your team – individually or in bulk with our Google Workspaces integration.

Accelerate your growth with the IO Mastercard

Increase cash flow with automatic cashback

  • Unlimited 1.5% cashback on all spend
  • Automatically deposited into your account
  • No confusing points system
  • No manual redemption
IO credit card highlighting 1.5% cashback

Start spending at startup speed

  • Qualify for IO with an industry-low $25K cash balance minimum
  • Get higher credit limits through our startup-friendly underwriting model
  • Start spending immediately with virtual cards
Bar chart showing IO credit limit higher than traditional banks

Get time back with built-in finance automations

  • Close the books faster with QuickBooks and Xero integrations
  • Ditch data entry with transaction categorization syncing
  • Generate NetSuite-friendly reports

There's more to IO

  • No interest, annual fees, or FX fees
  • Mastercard Zero Liability and Fraud Protection
  • Discounts on tools like Microsoft and Adobe
  • Can help improve your business credit score
  • Support when you need it via chat or email

Just one part of Mercury's full financial platform

If you have questions, we have answers

Ready, set, grow

Start spending – and growing – with credit cards available to Mercury account holders.