Colossal
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Case Study

Eliminating manual payroll admin for a small accountancy firm

IndustryAccountancy and Business Services
FocusPayroll processing, client data collection, compliance
ServiceAI Automation - Custom Integration
3 days to half a day
Monthly payroll admin time
Zero
Missed submissions since go-live
Automated
All client chasing and follow-ups
Staff freed
From collection and coordination

Three days. Every month. Just to collect the data.

Payroll is non-negotiable. Staff must be paid accurately, on time, every month, regardless of how late the data arrives. For a small accountancy firm running payroll for 20-plus client businesses, that meant three days of chasing each month before the actual payroll work could even begin. Emails to clients requesting hours and changes. Follow-up emails when nothing came back. Spreadsheets tracking who had responded and who hadn't. A single slow client could delay the entire run. And because the firm had no automated tracking of what was outstanding, oversight depended entirely on individual staff memory.

That's not a process problem. It's an architecture problem.

The automation

On a fixed date each month, the system triggers automatically for every active payroll client. Each client receives a structured form to submit their hours, changes, new starters, and leavers. No email thread. No attached spreadsheet. No ambiguity about what's needed.

Submissions collate in real time. Any client who hasn't responded within 48 hours gets an automatic follow-up. The payroll run only initiates once all data is confirmed received. Staff see a live dashboard of who's in and who's still outstanding, and they only get involved when there's a genuine exception to handle.

What changed

  • Payroll admin reduced from three days to half a day
  • Zero missed submissions since the system went live
  • No incomplete runs. The payroll only starts when the data is complete.
  • Staff doing actual payroll work rather than chasing emails

The firm now runs payroll for a growing client base with the same team that was previously stretched to handle it.

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