Insights

BILL is shutting down Finmark on April 1, 2026. If you’re one of the thousands of founders who used it to build their financial model, you need a migration plan in the next two months. But the bigger story isn’t about one product. It’s about what’s happening to an entire category of tools that startups depend on. What Finmark was Finmark was one of the few financial modeling tools built specifically for startups and priced so early-stage companies could actually afford it. At $50/month, it gave founders a structured way to build projections, model revenue, and track burn rate without wrestling with spreadsheet formulas. ...

Most founders build one financial model. They spend weeks getting the numbers right, defend it to their board, and treat it as a plan to execute. This is exactly backwards. A financial model isn’t a prediction. It’s a tool for thinking through possibilities. And the most useful part of it isn’t the base case you built first. It’s the scenarios you run after. The anchoring problem Daniel Kahneman’s research on cognitive bias identified something called anchoring: once you see a number, it distorts your judgment about what the right number should be. The first estimate you encounter becomes a reference point that’s hard to escape, even when you know it’s arbitrary. ...

Over the past two years, the three tools that best served startup financial modeling have all been acquired and absorbed into larger companies. Finmark was acquired by BILL and is sunsetting in April 2026. Causal was acquired by Lucanet in October 2024. Pry was acquired by Brex for $90M. Each of these products was built specifically for startups. None of them exist independently anymore. This isn’t a coincidence. It’s a pattern worth understanding, because it left a real gap that affects real founders. ...

A founder I know discovered last year that her runway was off by four months. Not because her assumptions were wrong. Because a SUM range in row 47 didn’t include the last three hires she’d added to the team sheet. The formula referenced B12:B24. Her team list went to B27. She’d been making hiring decisions based on a number that was silently, confidently wrong. No error message. No red cell. Just a clean-looking spreadsheet telling her she had until March when she actually had until November. ...