The 2026 professional liability submission for architects and engineers does not start with the application form anymore. It starts with the QA/QC file. The underwriter is reading the file before the application — and the firms that figured that out in 2025 are getting different quotes than the firms that have not.
WTW's 2026 Insurance Marketplace Realities for A&E, the Ames & Gough carrier survey, and Aspen's market commentary all read the same way at the headline level. Capacity is stable. Limits above five million are widely available. Rates are mostly stable on favorable accounts. Seventy-three percent of A&E professional liability insurers are planning rate increases in the single-digit range for 2026.
The 2026 question on the application is no longer “Do you have a QA/QC process.” It is “Show us the QA/QC file.” That is a structural shift in how this line is being underwritten.
The file is what the defense attorney reads first
Ames & Gough reports that 85 percent of A&E professional liability carriers cite increasing claim severity as the dominant 2026 driver. Social inflation, longer claim tails, larger settlements on standard-of-care disputes, and emerging risks from AI and climate are reshaping what counts as a defensible engineering or design decision. The QA/QC file is what the defense attorney reads first in a deposition. It is now what the underwriter reads first in a submission.
ISO's three new generative AI exclusion endorsements — CG 40 47, CG 40 48, and CG 35 08 — took effect January 1, 2026. Several A&E specialty markets have filed their own absolute AI exclusions for E&O. The underwriter now wants to see documented human-in-the-loop review of every AI-assisted deliverable: who used the tool, who reviewed the output, what the signed-and-stamped check produced, and what the QA/QC log records.
The Berkley Design Professional claim library has documented examples where a civil/surveyor firm neglected to perform a printed 2D drawing check inside its QA/QC process before issuing construction documents. The resulting claim was not about engineering judgment — it was about process. The defense attorney's first request in that kind of claim is the QA/QC checklist signed and dated for that submittal.
Pre-claim contract review services from the major A&E carriers are now generating documentation that the same carriers want to see referenced inside the QA/QC log on the next renewal.
The submission is now a documentation problem
PFTN's 4-Step Strategic Process treats the A&E file the way the defense attorney treats it. Strategic Discovery starts with the QA/QC system, the AI controls, the contract review log, and the stamp-and-seal process. Risk Assessment quantifies the firm's AI exposure under the new exclusion endorsements. Solution Design builds the submission around the file the underwriter is going to read first.
The professional liability quote is no longer a market problem. It is a documentation problem. The shift starts with one conversation — and preferably with the QA/QC binder open.
— Ryan Mefford, President & Risk Advisor