Pricing

Core features. No add-ons. No extra fees.

Always know exactly what you're paying for. Every Ratio plan includes the full product — research, drafting, add-ins and the authoritative UK tax library.

Individual

Best for sole practitioners and individual tax professionals

£50/month per user

7-day free trial, then £50/month. Cancel anytime.

Everything included:

Unlimited tax questions, drafting and file uploads
Full access to Ratio's authoritative UK tax library
Verifiable answers with unlimited source lists
Word, Excel and Outlook add-ins included
Memo builder with Word export and tracked-changes review
Image generation in chat
Private, encrypted storage — never used to train AI models

Team

Best for firms with multiple tax and accounting professionals

Contact for pricing

Tailored to your firm's size and workflow.

Everything in Individual, plus:

Team projects with shared chats, documents and knowledge
Membership-based access controls
Guided onboarding and training
Priority support

Talk to us

A product specialist will get back to you within 24 hours

Everything included, in every plan.

Answers

Verifiable answers to tax questions in seconds

Conversational follow-up questions
Upload and analyse files, including PDFs
In-line source links included with answers
Download answers as Word documents
Instantly draft memos and emails
Image generation for diagrams and visuals

Sources

An authoritative UK tax library behind every answer

Comprehensive, current UK tax legislation
HMRC manuals and published guidance
Supporting reference material
Sources surfaced with answers so you can verify directly

Add-ins

Ratio inside the tools you already use

Word add-in with tracked changes
Excel add-in with approval-controlled workbook edits
Outlook add-in for drafting — you always send
Memo builder with section-by-section drafting

Security & privacy

Built for confidential client work

Encrypted storage and transmission
Strict project isolation between teams
Client data never used to train AI models
Client details stripped before external research

Final judgement, review and sign-off always remain with you — Ratio supports your work, it doesn't replace professional review.

Try Ratio free for 7 days.

Start your trial today, or talk to us about a tailored plan for your firm.

Book a demo