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    Don’t Ask Your New Hire to Do Two Jobs: Why US GAAP Conversions Need a Dedicated Expert

    March 23, 2026

    There’s a job spec circulating in European finance hiring circles that should come with a warning label. It reads something like: “We’re looking for a Finance Director with strong US GAAP experience to lead our conversion project and build out the finance function.” It sounds reasonable. It isn’t.

    Running a US GAAP conversion and running a day-to-day finance function are two completely different jobs. One is a project. The other is an ongoing operational role. Bundling them into a single hire is one of the most common and costly mistakes European companies make when preparing for US capital markets.

    Why GAAP Conversions Require a Different Skill Set

    A US GAAP conversion is a technical accounting project. It involves reviewing your chart of accounts, mapping your current accounting policies against US GAAP standards, identifying where local practice departs from what US GAAP requires, and documenting all of it in a format that will satisfy auditors and investors.

    This is specialized work. You need someone who has done it before, who understands how to structure a GAAP matrix, who knows which technical issues (revenue recognition, share-based compensation, lease accounting) are likely to surface for a European company, and who can produce the documentation layer that auditors will actually rely on.

    A strong CFO or Finance Director who has spent their career running FP&A, managing treasury, and closing the books every month probably doesn’t have this. That’s not a criticism. It’s a different skill set, and it’s genuinely rare in Europe.

    What Happens When You Try to Combine the Roles

    When companies try to find one person to do both, a few things go wrong.

    The job spec becomes nearly impossible to fill. You’re now looking for someone with deep technical GAAP expertise (rare in Europe), strong operational accounting skills (more common but still competitive), and the seniority to build out a finance function (senior and therefore expensive). The search takes longer, the candidate pool shrinks, and you often end up making a compromise hire.

    Even if you find someone who looks right on paper, the conversion project and the day-to-day role compete for the same time. The conversion is urgent and deadline-driven. The operational work never stops. Something gives.

    And the conversion itself suffers. A good GAAP conversion is documentation-intensive. It requires focus. When the person leading it is also managing payroll, handling investor reporting, and dealing with the audit, the documentation doesn’t get the attention it needs. You arrive at your first audit with gaps, and gaps are expensive to close under time pressure.

    The Better Approach: Split the Two Roles

    Bring in an external US GAAP conversion expert to lead the conversion project. This can be a fractional engagement or a defined project scope. The external expert brings specific technical knowledge, completes the conversion properly, and produces documentation that will hold up in an audit.

    Then hire (or promote or develop) the right person for the permanent day-to-day role. This is your Finance Director, your Controller, your VP Finance. The job spec becomes cleaner. You’re looking for operational strength, leadership ability, and a solid working knowledge of the reporting framework you’re moving to. That search is more manageable, and the candidate pool is larger.

    The Knowledge Transfer Happens Naturally

    One argument for combining the roles is that the incoming finance hire should own the conversion so they truly understand the accounting. There’s some logic in that. But in practice, a good external conversion expert will walk the in-house team through everything as the project progresses.

    By the time the conversion is complete, the permanent hire will understand the GAAP policies, know where the judgment calls were made, and have access to the full documentation set. The knowledge transfer happens through the project, not by having one person do everything solo.

    Think of it like bringing in a specialist contractor to design and install a new system while your team learns to operate it day-to-day. You end up with a better result and a team that actually understands what was built.

    A Cleaner Process for Everyone

    Companies that take this split approach typically see better outcomes:

    • The conversion is cleaner and better documented.
    • The permanent finance hire is set up to succeed from day one.
    • The business gets through a complex period without overloading a single person.
    • Auditors get the documentation package they need without last-minute scrambles.

     

    If you’re currently working on a job spec that says “will also lead the GAAP conversion,” it’s worth pausing and asking whether that’s really the right design. Most of the time, it isn’t.

    Working Through This Right Now?

    If your company is preparing for a US listing, acquisition, or institutional investment and you’re navigating the accounting side of that transition, this is exactly the kind of work I help with. Reach out to talk through what your conversion project needs and how to structure it properly from the start.