Every fintech vendor has a good demo. The data loads cleanly, the dashboards look sharp and nothing breaks. But finance teams do not live in the demo. Instead, they live with the contract, the integration and the support desk for years.

Many buyers learn this the hard way. In a Capterra survey of 3,500 professionals, reported by CIO Dive, seven in 10 said their organisation regretted a software purchase made in the past 18 months. Financial firms blamed poor vendor handoffs, unmet expectations and tools that failed the ROI test.

So we asked industry leaders one question: how should a finance team evaluate a new fintech vendor beyond the demo? We wanted real criteria, red flags and lessons from bad contracts. We heard from the curator of a CFO knowledge platform, the founder of an outsourced accounting firm and an attorney.

Test a fintech vendor on the unhappy path

A demo is a script. The vendor picks the data, the workflow and the order of the clicks. As a result, it tells you very little about what happens when a payment fails or a refund lands in the wrong period.

The fix is simple, though few teams do it. Ask for a sandbox and load it with your own data, including the ugly parts. Then call customers the vendor did not choose for you.

“A demo only shows you the happy path, so test the unhappy one. Ask for a sandbox, run your own messy data through it and see how it copes with a failed payment, a refund and a month-end close that goes wrong. Then speak to two customers your size, not the ones the vendor picks, and ask what they had to fix in their first year.

I’m wary of vendors that sell a custom plan they won’t explain on their website, have nobody to help with the ERP integration, and go vague when you ask what happens when something breaks.

The contract matters more than the features. I had a client who signed a deal that renewed automatically every year and said nothing about exporting their data if they left. Leaving would have cost them more than staying. So read the exit clause, and get the data export terms confirmed in writing before you sign.”

Ankit Sarawagi, Curator, CFO Matrix

US bank regulators make the same point about references. Their 2023 interagency guidance on third-party risk warns that past experience with a supplier is no substitute for proper due diligence. The guidance was written for banks. Still, its checklist works well for any finance team buying from a fintech vendor.

Read the exit clause before the feature list

Auto-renewal is the quiet trap in most software deals. A contract rolls over, the notice window passes and the team is locked in for another year. If the contract is also silent on data export, leaving gets even harder.

Small print can shape a switch in other ways too. For example, Fintechbits found that Mercury Payroll is free through 2026. However, a footnote stops companies moving from another provider until 1 January 2027, the day free pricing ends. That detail sat in a footnote, not in the demo.

The interagency guidance is blunt about exits. It tells buyers to check for heavy upfront or termination fees and to set limits on price rises. It also says contracts should allow an orderly exit without prohibitive cost, with data returned or destroyed on time.

The legal red flags a fintech vendor contract can hide

Contract risk is not only about getting out. It is also about who carries the blame when something goes wrong. Here a lawyer’s view adds weight to the finance view.

“I come at this as a lawyer, not a CFO, but I’ve seen what happens when these contracts go wrong. Start with data ownership: who owns your data once it runs through the vendor’s platform? Then look at liability if their system fails and harms your customers, and at auto-renewal clauses that make it painful to leave. A promise of ‘reasonable uptime’ is worth very little when the system goes down at a critical moment. You want service levels with real financial penalties.

Watch the indemnification clauses too. Some fintech contracts push responsibility for compliance failures onto the client, even when the vendor’s own design caused the gap. It reads as reasonable in dense contract text, but it leaves you exposed if regulators or customers come after you.”

Loretta Kilday, Spokesperson, Debt Consolidation Care

Her last point matters most. Under the interagency guidance, using a third party does not remove a firm’s own compliance duties. In other words, the regulator will still knock on your door, whatever the fintech vendor’s contract says. Rules also move fast, as our roundup on which fintech rule changed how leaders work showed.

Controls, integration and hidden manual work

A tool can pass every test and still make the team slower. That happens when it does not fit the way the finance team already works. Integration gaps tend to show up as spreadsheets, rekeying and manual checks downstream.

“Judge a fintech vendor on four things: does it solve our business problem, what controls does it give us, how does it integrate, and do the economics work? The demo shows you what the product does. Your finance team still has to work out how it fits into your current process.

I look at data security, our compliance obligations, integration and automation, reporting, service levels and pricing. In the contract, I check who owns which controls. Complicated pricing is a warning sign, and so is any tool that quietly creates manual work further down the line. Get clear on process ownership, system ownership and compliance needs before you sign, then test it against real scenarios.”

Abhinav Gupta, Founder, Profitjets

Ask for the audit reports too. A SOC 1 report covers the controls that touch your financial reporting, while a SOC 2 report covers security and availability. Most finance teams need both from a fintech vendor. Then read the section on user entity controls. It lists the checks the vendor expects your team to run, and a clean audit opinion does not cover them.

Birmingham City Council shows what happens when the buyer skips this work. It went live with Oracle Fusion in April 2022. Later, auditors found its officers had little understanding of the system they bought, so they could not challenge their suppliers. By early 2025, The Register reported the estimated cost had climbed from about £19 million to £108 million.

Treasury teams face a version of the same problem. When Ripple added 24/7 Returns to its treasury platform, the release gave no rate and no payer. Those are exactly the questions a treasury lead should ask before any money moves.

Plan for the vendor failing

The worst case is not a bad tool. It is a fintech vendor that collapses while holding your records. Synapse, a banking-as-a-service middleman, filed for bankruptcy in April 2024. According to the CFPB complaint, covered by FinTech Futures, its records did not match those of its partner banks, leaving a shortfall of $60 million to $90 million. Meanwhile, some consumers could not reach their money for weeks or months.

The lesson for finance teams is direct. Ask who keeps the ledger, how often it is reconciled and whether you can see it. Also, get data return rights that survive the fintech vendor’s insolvency.

What to do before you sign

Taken together, the advice is consistent. First, test the fintech vendor with your own messy data. Next, call references the vendor did not pick. Then, read the exit, liability and indemnity clauses before you look at features. Finally, put the fintech vendor’s renewal date in the calendar on the day you sign. A good demo opens the conversation. The contract decides how it ends.