Amerisure automates complex billing on Guidewire Cloud for Special Risk business

Amerisure’s cloud modernization hit its real stress test in Special Risk, where billing is tangled up with retrospective rating, large deductible programs, prefunded structures, endorsements, audits, and collateral management. Guidewire said the carrier became the first to automate Loss Sensitive programs end to end on Guidewire Cloud, a milestone that says as much about operational complexity as it does about software.

The project was not a standalone experiment. Amerisure had already gone live on ClaimCenter in 2023 across all lines of business, and on February 6, 2025, it said PolicyCenter and BillingCenter were in production on Guidewire Cloud, starting with Workers’ Compensation across all the regions where it operates. PwC served as the lead implementation partner. Amerisure’s earlier rollout also showed the shape of the wider program: the company said it was still bringing additional lines, including commercial auto and loss sensitive, onto the cloud platform.

That progression matters because Special Risk is where many modernization projects lose momentum. Amerisure’s loss sensitive programs cover workers’ compensation, general liability, and automobile policies, with structures that can include non-stacking collateral and pricing tied to actual loss experience. Those are exactly the kinds of workflows that expose gaps in legacy billing systems, especially when brokers, credit teams, and internal service staff all need a clear view of account-level activity.

Amerisure said the new platform gave it more modern policy and billing tools, better account visibility, and easier access to detailed policy information across the organization. Mark Fowler said the team was up and running in weeks rather than months, a detail that underscores how much of the work was about adoption, not just implementation. Amerisure’s June 4 spotlight on the case study framed the move as a continuation of a broader core transformation, not a one-time systems swap.

Guidewire later said phase one of the Loss Sensitive billing program launched in April 2025, cut invoice processing times to three days, and saved 4,000 to 6,000 manual hours each year across credit and IT teams. In Guidewire’s own words, Amerisure “transformed complex billing with industry-first cloud innovation.” For commercial P&C carriers, that is the real question now: whether core platforms can finally absorb the messiest specialty workflows without forcing people to keep patching the gaps by hand.

Amerisure’s 2025 annual report, released May 15, 2026, said the company had more than $55 million in surplus growth, remained licensed in all 50 states, and had been in business for more than 100 years. In that context, the Special Risk billing work looks less like a narrow billing upgrade and more like proof that cloud core modernization can reach the hardest corners of commercial insurance.