Nontechnical teams can use AI-built scripts to automate repetitive work, reclaim valuable time, and turn an accounting firm’s operational problem into a marketable product.

It's Not Just the Numbers
With Penny Breslin and Damien Greathead
For CPA Trendlines

Most accounting firms talk about AI automation in the future tense. They're waiting for the right tool, the right vendor, or the right moment to start using it seriously.

Trent Yesberg didn't wait. As director of Regional Business Services in Townsville, Australia, he started asking Claude and ChatGPT to write scripts that run his firm's internal workflows directly, with no ongoing subscription or per-task cost attached.

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What began as a way to save his own team a few hours a week turned into Twine Biller, a tool now used by other firms to fix one of accounting's quietest profit leaks: subscription rebilling that slips through the cracks month after month.

His approach cuts against a common assumption, that AI automation in a firm has to mean either building an entire internal platform from scratch or renting one from a big software vendor. There is a middle path, and Yesberg has been living in it for the better part of a year.