Meet Lex
Your accounting intelligence expert.
Available at every hour.
Lex is Lexendo's AI intelligence engine, built on 12,000+ verified legal and regulatory sources: 198 HMRC guidance manuals, 810 Finance Act policy notes covering every measure from Budget 2017 to Budget 2025, 334 FTT and Upper Tribunal decisions, 514 binding precedents from the UK Supreme Court and Court of Appeal, and 10,079 statute provisions across 10 major UK tax acts. Covering employment tax, corporation tax, VAT, CGT, IHT, AML/KYC, capital allowances, CIS, MTD, R&D, and audit. Precise, cited answers in seconds.
Live demo · 3 free questions
Ask Lex anything from the right: MTD obligations, CIS deduction rates, AML/KYC requirements, R&D eligibility, employment tax, and more. No account needed for your first three questions.
See plans to keep asking Lex →HMRC Investigation Risk Checker
Score any client against the triggers HMRC actually weights. Tick what applies, watch the risk tier update live, then email yourself a white-labelled summary to hand to the client. No account needed.
- ✓31 enquiry triggers across 8 risk areas
- ✓Live Low / Medium / High scoring
- ✓White-labelled client summary PDF
Multiple high-weight triggers cluster here. Hold a file review and weigh an unprompted disclosure before the return goes in.
The platform
Be the firm that catches the problem
before HMRC does.
Seven domains of UK tax and compliance coverage, all included in every plan. Hover any domain to see what Lexendo finds.
Find unscreened IR35 contractors and P11D gaps before the 6 July deadline.
One undetected IR35 misclassification: up to 3 years of PAYE back charges.
Catch unverified subcontractors before the 30% deduction rate applies to their payments.
An unverified subcontractor triggers the 30% deduction rate, not 20%, on every payment.
Identify unclaimed R&D relief, missed capital allowances and share-scheme exposure before year end.
Average unclaimed R&D relief for eligible SMEs: £53,000 per claim.
Flag clients who need Enhanced Due Diligence and track every MTD client toward the April 2026 deadline.
A single AML failure under MLR 2017: minimum £100,000 in fines. £200 per missed MTD quarterly submission, per client.
Catch VAT errors before HMRC does: return anomalies, threshold breaches and unclaimed pre-registration input tax.
Late VAT registration: HMRC penalty starts at 5% of unpaid VAT. Each de minimis miss locks in irrecoverable input tax for a full year.
Compute Self-Assessment liability, CGT due, and Basis Period transition adjustments for individual clients.
Late-filed SA: £100 immediate penalty, rising to £900 after 3 months. Missed 60-day CGT reporting on residential property: £100 + £10/day after 3 months.
Upload a PDF bank statement and get ISA 240 anomalies and going concern risk flagged in seconds.
Bank statement reconciliation: from 4 hours to under 5 minutes, per client.
Audit Intelligence
Bank statement analysis.
Built for ISA compliance.
Upload a PDF bank statement and Lexendo categorises every transaction, flags anomalies under ISA 240 fraud risk indicators, and produces an audit ready summary in seconds.
4 hrs to 5 min
per client bank statement analysis
All 5 ISAs
full standard coverage in one upload
Zero entry
PDF parsed automatically, no transcription
The founder
Built by someone who has seen the other side of the risk.
I built Lexendo after watching accounting practices miss risks that were already in their data: risks that cost their clients tens of thousands of pounds once HMRC arrived. My background is in law and AI consultancy.
Every module, every risk flag, and every case citation in Lex was chosen with one question in mind: would a tax barrister be satisfied with this answer?
10 founding practices.
Shape what gets built next.
Lexendo is accepting 10 founding practices into the Advisory Circle. Locked in pricing, direct founder access, and a role in deciding every major product decision. In exchange: honest feedback that makes the platform better for every practice that follows.
Apply to join →Pricing
Transparent pricing. No surprises.
All plans include the 30 day money back guarantee. Pay annually and get two months complimentary.
Lexendo Managed
A fully managed tax risk intelligence service. We run the assessments, interpret the findings, and deliver client ready compliance summaries under your firm name. For practices that want Lexendo's intelligence without managing the platform themselves.
Contact us to discuss →Bespoke scope, priced on practice size and portfolio complexity.
If Lexendo doesn't find a risk worth acting on: full refund.
Full access from day one. No time limited trial. If Lexendo hasn't surfaced a risk worth acting on within 30 days, we refund every penny. No questions asked.
Get started, 30 days risk free →FAQ
Common questions
Everything you need to know before getting started.