Case Study · Fintech

The business credit card that doesn't ask you to bet your house.

How we designed the landing page for IO by Mercury — turning a category built on fine print into one clear, checkable promise.

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The IO by Mercury Mastercard on the hero gradient
0K+Entrepreneurs on Mercury
1 in 0Startups choose Mercury
$0B+Monthly transaction volume
0Apple App Store rating
01 — The Client

Mercury, and a credit card built the opposite way.

Mercury is the banking stack that 300,000+ startups and founders run on. IO is its business credit card — and its differentiator isn't rewards or rates. It's what the card doesn't ask for.

No personal guarantee. No credit check. A limit based on the money you already hold at Mercury, not on a founder's personal assets.

Client
Mercury
Product
IO business credit card
Audience
Founders & finance leads
Goal
Account applications
Scope
Landing page design
Tone
Precise · calm · premium
02 — The Insight

They're not underwriting your business.
They're underwriting you.

A personal guarantee means that if the company can't pay, you personally can. That one sentence is the whole reason founders distrust business credit — and nobody in the category says it out loud. So we led with it.

Comparison: a traditional business card versus IO by Mercury
The comparison that reframes the category Real screenshot
03 — Design Craft

Two things, done properly.

The product does exactly two things worth talking about. Rather than pad the page with features, we gave each one a full card and a picture of the actual outcome.

Cashback deposited directly into the account

Unlimited 1.5% cashback

Every category, no cap. Deposited straight into your account when you pay the balance — nothing to claim, convert, or lose in a portal.

A credit limit based on your balance versus traditional banks

A limit based on your balance

Not on a credit file. A funded company with a history gets a real limit on day one — and it grows as the balance does.

04 — Design Craft

IO is a charge card. That's why
there's no interest.

The mechanic most cards bury in the terms is the one that earns trust here — so we gave it two full-width blocks and photographed it like a product, not a footnote.

Starting out

Daily repayment

Lower balances start on daily terms — cleared automatically each business day. It's how you get a card on day one instead of waiting to build a history.

  • No interest, because there's no revolving balance
  • Access on day one for eligible orgs
The IO card, photographed as a product
At a $15k balance

30-day terms

Switch to monthly repayment, deducted automatically. Pay early any time — cashback is credited in proportion to what you've paid.

  • Unlocks automatically as the balance grows
  • No annual fee, no points to redeem
Abstract product visual for 30-day terms
05 — Conversion Thinking

Give the team cards.
Keep the control.

The objection after "is it safe?" is "can I control it?" We answered it in the same breath — issue cards in bulk, lock them to merchants, and let the accounting reconcile itself.

  • Per-person limits, and cards locked to specific merchants
  • Receipts required above any threshold, matched automatically
  • Syncs to QuickBooks, Xero and NetSuite, coded by AI
The spend management dashboard with issued team cards
06 — Proof

One in three startups bank with Mercury.

In fintech, the strongest proof isn't a testimonial — it's scale. We put the numbers directly under the hero, then let real founders carry the emotional half of the argument further down.

Entrepreneurs
300K+
Startups choose Mercury
1 in 3
Monthly volume
$20B+
App Store rating
4.9
Karri Saarinen, Founder, Linear

"Unlike most financial institutions, Mercury is built on software. Everything can be done within the app in 1–3 minutes."

Karri SaarinenFounder, Linear
Feron Halstead, Founder, Place & Places

"We love Mercury's interface. Built-in permissions mean our accountant can easily make payments — literally one click and it's done."

Feron HalsteadFounder, Place & Places
07 — Conversion Thinking

Make them do the math on their own spend.

1.5% cashback is an abstraction. "$4,500 back a year" is a decision. Two questions — no email, no gate — and the page returns the buyer's own number.

A number they calculated themselves is the one they repeat to a co-founder.

The cashback calculator asking how much the business spends each month
"See what IO gives back." Real screenshot
The FAQ section: four things worth knowing
"Four things worth knowing." Real screenshot
08 — Conversion Thinking

Answer the four questions that stall the application.

Is there a separate application? How is my limit decided? Are there fees? Does it build business credit? Four questions, answered plainly, right before the final CTA.

Naming the friction removes it. In a category this distrusted, an honest FAQ converts better than another benefit.

09 — What We Now Treat As Defaults

Five rules for fintech pages.

01Name the thing the category hides.The personal guarantee was the real objection. Saying it first buys the rest of the page.
02Two claims, made properly.Beats eight features skimmed. Give each one a card and a picture of the outcome.
03Lead with scale, close with faces.Numbers establish safety; founders make it feel human.
04Let them compute the value.A cashback rate is abstract. Their own number is a decision.
05Put the awkward questions on the page.In a distrusted category, candour outperforms another benefit block.
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Selling something people are trained to distrust?

We design and build conversion-first landing pages for fintech, SaaS and regulated products — where the hard part is being believed.

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