Building a Business Case a Bank Will Fund

Sep 28

At some point in a promising deal, your champion at a bank or credit union asks for something they can take to leadership. What they usually receive is an ROI calculator filled in with the fintech's own assumptions, a slide of customer logos, and a payback figure that would be hard to defend in a budget meeting. The champion then has to rebuild the case in their institution's format, with their institution's numbers, before anyone with spending authority will look at it, and a lot of deals stall during that rebuild. A business case gets funded when it is written for two people: the executive who approves the spend and the manager who will have to answer for the result a year later.

Short answer: a fintech business case that a bank or credit union will fund ties the purchase to a priority the institution has already committed to, starts from the institution's own baseline, counts every cost the institution will carry (including staff time and integration), shows a conservative range timed from go-live, and names how and when results will be measured. It should be short enough for your champion to present without you in the room.

Why do fintech business cases stall before they get funded?

Financial institutions see far more vendor pitches than they can evaluate, and technology spending gets hard scrutiny. In Independent Banker's 2026 Community Bank CEO Outlook, Jason Meyerhoeffer, president and CEO of $1.5 billion-asset First Federal Bank in Twin Falls, Idaho, said he could fill his entire day with vendor conversations, which is why his bank concentrates on the investments it expects to pay back for customers and for the institution. A 2025 survey of 268 community banks run by state banking supervisors found that 81% rated technology implementation and costs an extremely or very important internal risk, and cost or ability to implement was the single most cited barrier to adopting new technology, at 41%.

Credit unions report a gap after the purchase as well. In a PYMNTS Intelligence and Velera survey of 500 credit union executives in late 2025, 77% said innovation projects took longer than expected, and only 16.8% said the ROI objectives from their latest fintech collaboration had been fully achieved. The executive approving your deal has probably watched projections miss before, so a case built only on upside reads as one more projection to discount.

The pattern I see in the cases that stall is structural. They are written as sales documents: they lead with the product, rely on the fintech's benchmark figures instead of the institution's data, leave out internal costs, and assume value starts on the day the contract is signed. A CFO or a board member finds each of those gaps within minutes, and once one is found, the rest of the numbers lose credibility.

What does a fundable business case include?

In a go-to-market strategy for banks and credit unions, the business case is often the document that decides whether a qualified deal becomes a funded one. Six components separate a case that gets funded from one that gets parked, and each answers a question the approver will ask whether or not you address it.

1. A priority the institution has already committed to

Start from the institution's stated goals, which you can find in its strategic plan, its annual report, and what its leaders say publicly and in your meetings. In the same Independent Banker survey, almost 60% of community bank CEOs named growing deposits as one of their greatest challenges for 2026. If your product reduces fraud losses and the institution's plan for the year centers on deposit growth, the case has to explain the connection, or it will compete for money against projects that are already on the plan. Ask your champion which line in this year's plan the project supports. If they cannot name one, that tells you something important about the funding, a point covered in our post on how to qualify a bank deal.

2. A baseline built from their numbers

Use the institution's volumes, staffing, and loss rates, and keep your averages from other clients for shaping the range. Some of this is available before you ask anyone: every bank and credit union files quarterly financial data that is public, which gives you asset size, loan and deposit mix, and growth trends. Operational figures such as application volume, handling time, or dispute counts have to come from your champion, and whether they can get them for you is useful qualification in its own right. Where you have to estimate, label the estimate and show where it came from.

3. The full cost the institution will carry

License and implementation fees are the obvious costs. The institution will also count the staff hours spent on implementation and training, integration work or fees from its core provider, the time its team spends on vendor due diligence and contract review, ongoing administration, and any system it retires or keeps running in parallel. In the supervisors' survey, bankers named internal resources, including time and staffing, as a hurdle to implementation, and 62% expected core processor responsiveness to be a challenge over the next five years. Listing these costs yourself builds credibility, and a CFO who finds them missing will discount everything else in the document.

4. A range, timed from go-live

Show an expected case and a conservative case, and start counting value at go-live, with a ramp-up period, rather than at signature. For many implementations, year one is negative once internal costs are counted, and showing that honestly makes the rest of the model easier to believe. A payback that only works if everything goes right will be questioned by someone who has seen timelines slip before.

5. A measurement plan

Name the metric, the current baseline, the person at the institution who owns it, the system the number comes from, and when it will be reviewed, for example 90 days after go-live, at 12 months, and before renewal. This answers the question an approver worries about most, which is how anyone will know whether the purchase worked. It also means success is defined in terms both sides agreed to at the start, which is what you will rely on when renewal and expansion come up.

6. A format your champion can present without you

Keep it to one or two pages, in the institution's language (members at a credit union, customers at a bank), covering the decision requested, the cost, the range, the risks and how they are handled, and the measurement plan. Send it as an editable document so your champion can move it into their own template. When I was evaluating vendors on the credit union side, the proposals I could take upstairs fastest were the ones I could edit and put my name on, because leadership was asking for my recommendation and wanted it in my words. The approver is often a different person from the one you have been meeting with, a dynamic covered in our post on the readers inside an institution.

What does this look like in practice?

Illustrative example, with numbers invented for this post and not drawn from a client.

A credit union with about $900 million in assets processes 1,000 consumer loan applications a month, and its loan operations staff spend about 25 minutes per application on manual document review. A fintech's tool is expected to cut that to 10 minutes. That frees about 250 staff hours a month, or 3,000 hours a year, which is worth about $135,000 a year at a fully loaded cost of $45 an hour.

In year one, the credit union pays a $45,000 annual license and a $25,000 implementation fee, and its own staff spend about 300 hours on implementation and training, roughly $13,500 of time. Go-live comes five months after signing, so year one captures seven months of value, about $78,750. In the expected case, year one nets out at about negative $4,750 and year two at about positive $90,000. In a conservative case where only 60% of the time savings materialize, year one nets out at about negative $36,250 and year two at about positive $36,000, so the purchase roughly breaks even by the end of year two. A real version would also add any core integration fee, which the credit union confirms with its provider.

Two details make this case stronger than a typical vendor ROI slide. It shows the negative first year openly, and it can say what the freed hours will do. Saved hours become savings only when they avoid a hire, absorb loan growth without adding staff, or move people to member-facing work, and the case should state which of those the credit union intends, because the CFO will ask.

Where should you start?

Before your next conversation with a champion who has asked for something to take upstairs, work through this checklist:

Ask which priority in this year's plan the project supports and who approves spending at this size.
Pull the institution's public quarterly financial data so you understand its size, mix, and growth before you model anything.
Request the three to five operational numbers your baseline depends on.
List every internal cost the institution will carry, including staff hours, due diligence time, and core integration.
Build an expected case and a conservative case, both timed from go-live.
Draft a measurement plan with the metric, baseline, owner, source system, and review dates.
Send it as an editable one- or two-page document your champion can present without you.

A bank or credit union funds the business case it can defend, which means one tied to its own priorities, built on its own numbers, honest about cost and timing, and clear about how the result will be measured.

Frequently Asked Questions

What should a fintech include in a business case for a bank or credit union?

A link to a priority the institution has already committed to, a baseline built from the institution's own numbers, the full cost the institution will carry, an expected and a conservative case timed from go-live, and a measurement plan with named owners and review dates.

Should a fintech use its own ROI calculator in a bank deal?

It can structure the math, but replace the default assumptions with the institution's figures and show every assumption openly. A calculator filled with vendor benchmarks reads as marketing to the people approving the spend.

What payback period do banks and credit unions expect?

There is no universal threshold, and it varies with the institution and the size of the spend. Ask your champion what finance applies to purchases of this size and how recent approvals were judged, then build the case against that standard.

How long should the business case be?

One to two pages for the decision itself, with an appendix for assumptions and cost detail. Your champion needs to present it in a few minutes, and the approver needs to find the numbers without searching.

Who approves a fintech purchase at a bank or credit union?

It depends on the institution and the dollar amount. The champion sponsors it, finance usually reviews it, and larger purchases can go to an executive committee or the board. Ask early who approves spending at this size and what they will want to see.

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