How Fusion Consulting Achieved 44% Reduction in Late Payments with Kolleno

Fusion Consulting is a multidisciplinary advisory firm based in London, working across tax, accountancy, law, and recruitment for private individuals and fast-growth businesses.

The firm built its reputation helping other businesses run more efficiently, advising clients across a wide range of disciplines as its own client base expanded.

Fusion’s client list was growing, but its view of who owed what wasn’t keeping up. Payment information was scattered across email, spreadsheets, and Xero, with nothing tying it together. “Before implementing Kolleno, we had very limited visibility into our receivables,” says Adam Maurice, Director at Fusion Consulting Group. “We were essentially operating in the dark when it came to predicting when payments would come in, making financial planning incredibly challenging.” Even simple questions, like which invoices were still outstanding, meant cross-referencing multiple sources by hand.

Chasing payments was just as manual. The finance team drafted every reminder individually, with no consistent timing or tone, so some clients got chased repeatedly while others slipped through unnoticed. Each overdue invoice meant another round of follow-ups, eating into a week that was already stretched thin. For a firm that advises other businesses on how to run efficiently, the irony wasn’t lost on them. Fusion needed to fix its own operations before it could keep scaling.

Fusion needed automation, a real Xero connection, and reporting that actually reflected reality, not just incremental fixes. “We evaluated several solutions, but Kolleno stood out when we actually saw the tool and spoke to the team,” says Maurice. Once live, Kolleno built customized communication sequences based on invoice age, customer segment, and payment history, so every client got a timely, consistent reminder without anyone on the team having to remember to send it. High-value clients still got a personal touch; everyone else was handled automatically. “Before Kolleno, our follow-up process was entirely manual and often inconsistent,” Maurice says. “Now, every client receives appropriate reminders at the right time, without our team having to remember to send them.”

The Xero connection runs both ways. An invoice created in Xero shows up in Kolleno automatically, and a payment recorded in either system updates the other instantly, so nobody is reconciling two versions of the same record by hand anymore. “The Xero integration has been transformative,” Maurice says. “We no longer waste time manually updating records or cross-checking information between systems. Everything syncs automatically, giving us complete confidence in our financial data.”

Reporting moved from something the team had to build to something that was just there. Kolleno’s dashboards now show collection performance, aging balances, and payment trends in real time, instead of reports that were already out of date by the time they were finished. “The reporting functionality has been eye-opening,” Maurice says.

Overdue payments dropped 44% in the first six months. Cash flow improved 29% within three months, and time spent chasing payments fell 33% in the first month alone.

The bigger shift was in how the team spent its time. Hours that used to go into drafting reminders and updating spreadsheets by hand now go toward the strategic work Fusion actually bills for. Automated workflows handle the routine follow-ups, the Xero sync means nobody is reconciling two systems, and reports that used to take days now happen automatically.