Mercury IO Mastercard
By Alex Compton · Last verified
1.5% on everything for companies that already bank with Mercury.
Welcome Bonus
None
No public welcome offer; 1.5% cashback confirmed, and Mercury pricing lists a 3% currency exchange fee on non-USD card transactions
Spend Requirement
None
Annual Fee
$0
3% 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.
No numeric welcome bonus recorded
This product has no points- or cash-denominated offer to plot. Dated no-offer observations, non-points benefits, corrections, and primary-source links remain preserved in the table below.
| Observed | Offer | Requirement | What changed | Evidence |
|---|---|---|---|---|
| 2026-10-12 | $0 | No recorded spend | Terms reconfirmedNo public welcome offer; 1.5% cashback confirmed, and Mercury pricing lists a 3% currency exchange fee on non-USD card transactions | Mercury IO card product page → |
| 2026-06 | $0 | No recorded spend | Terms reconfirmedNo public welcome offer | Archive record · no attached snapshot |
| 2025-06 | $0 | No recorded spend | Earliest record | Archive record · no attached snapshot |
Primary-source verification log
Append-only evidence ledger- changed
1.5% cashback and no PG confirmed; Mercury pricing lists 3% currency exchange fee on non-USD card transactions
Fields: foreignTransactionFee, benefits
Mercury IO product page and pricing page →
Source checked 2026-10-12 · spot an outdated offer? Report a correction above.
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Earning Rates
- 1.5xAll settled purchasesCash back deposits to your Mercury account monthly
Credits
No statement credits, this card wins on earn rates, not coupons.
Benefits
- ✦No personal guarantee or personal credit pull
- ✦Starts on daily repayment; 30-day terms unlock at $15,000 in Mercury balances
- ✦Limits based on Mercury balances, plus any external accounts you link
- ✦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
- −3% currency exchange fee on non-USD card transactions
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 offers a similarly simple no-guarantee alternative, though its actual reward rate is account-specific. A banking perk done well rather than a destination card.
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