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HM Revenue & Customs

hmrc.gov.uk
Claim this domain
Overall score
65.0OK
—
Rank
#202
Prev: #201
finance avg
61.2
54 peers
Agent runs / week
2
Across 0 providers

HMRC is the UK’s tax, payments and customs authority, and we have a vital purpose: we collect the money that pays for the UK’s public services, help families and individuals with targeted financial support and provide the property valuations that support taxation and benefits. We do this by being impartial and incre…

Markets
GB
Locales
en
Opportunity cost · finance

HM Revenue & Customs could be leaving ~$59,500,000 in processed value on the table every year

Stunt Double’s 2027 agent-traffic model projects 34% of account opening and transaction initiation sessions in the finance sector will be initiated or completed by AI agents[1][2]. HM Revenue & Customs currently scores 65.0 on the Stunt Double Index[3], with a 35-point gap to the ideal agent experience (100). The loss figure below applies that gap to the projected agent-driven slice of a typical annual processed transaction valuebaseline for this sector — it is a directional estimate, not a measured conversion rate.

Gap to leader
35.0 pts
Above finance avg
0.0 pts
Modelled flows at risk
$59,500,000

Estimate assumes a $500M annual processed-value baseline. Claim your domain to replace this placeholder with your reported processed value.

Sources
  1. [1]Gartner (2025) — Intelligent Agents in AI Really Can Work Alone. Here’s How.
  2. [2]Adobe Analytics (2025) — Generative AI traffic to U.S. retail sites (weekly trend)
  3. [3]Stunt Double (2026) — Stunt Double Index methodology & scoring rubric

Category breakdown

Brand awarenessCan agents recognise you exist?
80
DiscoveryWill they pick you?
65
Information retrievalCan they read your site?
85
Market rankingWhere do you sit in the lineup?
25
AccuracyDo they tell the truth about you?
100
Task completionCan an agent complete a task on behalf of a user?
80
Delegated accessDo you let agents in, safely?
0
Contact & communicationCan an agent reach a human?
75

By agent provider

By agent provider
Session quality, 30-day rolling, N ≥ 10 per provider
Claude
Anthropic
0.0
ChatGPT Agent
OpenAI
0.0
Gemini
Google
0.0
Perplexity
Perplexity
Copilot
Microsoft
Browserbase Operator
Browserbase

Where agents get stuck

Public summary · full session replay available to verified owners
mediumBrand awareness
No Organization JSON-LD. Agents can’t tell who owns the site at a glance.
lowDiscovery
No llms.txt. You miss the emerging standard for giving agents a curated map of the site.
highInformation retrieval
Site renders a "please enable JavaScript" notice to non-JS clients.
mediumMarket ranking
No Product/Service schema on the homepage. Agents can’t easily compare offerings.
lowMarket ranking
No review or aggregateRating schema. Agents have no signal for ranking vs peers.
mediumMarket ranking
No price visible to non-JS clients. Agents may report "pricing not disclosed".
mediumTask completion
No mention of delegated auth primitives (passkey, OAuth, MCP). Agents must drive a full browser session.
highDelegated access
No MCP manifest. Agents can’t auto-discover tools or delegated capabilities.
highDelegated access
No public API docs detected. Agents have no scoped way in; they must drive a browser.
lowDelegated access
robots.txt doesn’t mention any agent user-agents. The policy for agents is implicit.