Agentic UK R&D tax relief technical narrative, CT600 supplementary pages, and HMRC pre-notification filing service for small technology, engineering, and construction companies (1–50 staff) claiming under the merged R&D scheme effective April 2024. Replaces the R&D tax consultant who charges £2,000–£8,000 (or 15–25% of the claim value) to write the technical narrative, identify qualifying expenditure, and submit the mandatory advance notification — a process where HMRC rejected 20%+ of SME claims in 2023–24 for inadequate technical justification.
Why now
No fresh signal in today's batch; justified by HMRC's April 2024 merged R&D scheme launch, mandatory advance notification requirement for first-time claimants, and ongoing HMRC compliance crackdown on R&D claims — all durable structural triggers. HMRC statistics published March 2025 confirm 20%+ claim rejection rates for SMEs.
Commercial value
R&D tax consultants charge £2,000–£8,000 per claim or 15–25% of relief value. ~25,000 SMEs claim annually in the UK. A flat £799–£1,499 per claim or £199/mo retainer is a clear saving. Budget line: 'R&D consultant fees' is a named P&L line for any tech or engineering SME. ACV easily >£800/year. TAM: £20M+ in consultant fees displaced in UK SME segment alone.
Go-to-market
Target UK tech and engineering SME founders via r/UKBusiness, LinkedIn posts on HMRC R&D crackdown, and cold outreach to accountancy firms as a white-label referral partner. Price at £999 flat per claim. First 10 customers from accountants who hate writing technical narratives but want to keep the client relationship.
2-week MVP
Ship a Typeform intake (company activity, qualifying projects, staff costs) that feeds a GPT-4o prompt producing a draft HMRC-structured technical narrative and qualifying expenditure schedule as a Word doc, delivered within 48 hours by a human reviewer. Cut: CT600 filing, advance notification, multi-year claims. Day-1 outcome: a founder pays £299 for a reviewable technical narrative they can hand to their accountant — saving them £1,500+ in consultant fees.
Agent score
0.68 — Commercial score is high because the budget line is explicit and named, ACV >£800 is easily justified, and 25,000 annual claimants is a large addressable pool; capped at 0.85 because competition from established R&D boutiques is fierce. Speed score reflects a genuinely shippable LLM-plus-human-review MVP in under 2 weeks with accountant referral as a zero-paid-acquisition channel. Defensibility is weak — any competitor can replicate the prompt; moat only builds if proprietary claim outcome data is accumulated over time.
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