AI-powered tax & business law research

Defensible answers to UK tax questions

Built for tax professionals who value speed, accuracy, and traceability.

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We handle the research. You bring the judgement.

Compress hours of statute hunting into minutes. So your day belongs to the work only you can do.

Accurate answers

Grounded in legislation, HMRC manuals, and guidance. Verifiable in one click.

Client intelligence

Profiles, documents, and tax positions centralised securely. AI answers in full client context.

Document analysis

Upload any document – from returns to HMRC notices. Spot issues, identify opportunities, get answers in context.

Document drafting

Draft memos, HMRC correspondence, and client letters in seconds. With citations to hand.

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Tested. Measured. Published.

98.3%

Accurate

20

Tax domains

1.7%

Hallucination

22

Question types

Designed and validated by tax experts.

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The impact of tax research AI

5 hrs

Per week saved by AI adopters

Thomson Reuters

Future of Professionals 2025

21%

Increase in billable hours per adviser

Stanford / MIT

AI productivity study 2023

8.5%

Time shifted to high-value work

Stanford / MIT

AI productivity study 2023

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Security and compliance, built in

UK Data Residency

Customer data stored in the United Kingdom only

Role-Based Access

Granular permissions and full audit trail

GDPR Aligned

Full data subject rights: access, export, deletion

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From solo practitioners to national firms, and in-house tax teams

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Trusted by tax professionals

Sarah W.

Tax Director, Chartered Tax Adviser (CTA)

GAIN Tax has cut our research and drafting workload by more than half. It's like giving every advisor an extra few hours each day without adding a headcount.

David C.

Finance Director, ACCA

GAIN Tax equips our accounting team with fast and accurate tax guidance and planning support. It's become one of the most valuable tools in our stack.

Emma R.

Head of Tax, CTA

Helpful for technical areas where you want to double-check your understanding against legislation.

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