Live · Making Tax Digital compliant

accurate.compliant.sorted.

The only MTD-native platform built for UK self-employed people. Six modules. Four capture channels. One AI tax advisor. No accountant required.

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HMRC MTD certified No accountant needed 14-day free trial
5M+
UK self-employed
£100
Minimum HMRC fine
4
Capture channels — only MerxTax
2026
MTD mandatory deadline
The Platform

Six modules.
Zero compromises.

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REDITUS
Income & Expenses

Every penny tracked in real time. Full HMRC category mapping, VAT handling, cash basis accounting, and a P&L that updates the moment you add a transaction.

Instant P&L · HMRC categories · VAT ready
VIGIL
Compliance & Deadlines

Your personal compliance score, updated live. Penalty point tracker, quarter readiness indicator, and deadline alerts — so HMRC never surprises you.

Live compliance score · Penalty risk · Quarter readiness
IMPENSUM
Receipt Capture — 4 channels

The only UK tax app with four capture methods: snap a receipt, speak a transaction, let GPS auto-log your mileage at 45p/mile, or connect your bank feed. AI reads it all.

Photo · Voice · GPS mileage · Open Banking — nobody else has all four
LUMEN
AI Tax Advisor

Ask anything, any time. Trained on HMRC guidance — Class 4 NI, mileage rates, cash vs accruals, self-assessment deadlines. A £3,000/year accountant for £14.99/month.

UK tax trained · 24/7 · No judgement · No hourly fee
FACTURA
Invoicing

Create professional invoices, save repeat clients as templates, mark paid — and the income flows straight into REDITUS automatically. No double entry. Ever.

Repeat client templates · Auto-posts to ledger · PDF ready
QUARTUS
MTD Submissions

Submit your quarterly update to HMRC in one click. Pre-flight audit catches duplicates and anomalies before you submit. Confidence score included.

Pre-flight audit · Confidence score · HMRC live and sandbox
Why MerxTax
MTD from day one.

Not retrofitted. Every module was built around Making Tax Digital. FreshBooks, QuickBooks and Xero added MTD as an afterthought. We started with it.

The only MTD-native platform for UK self-employed.
AI that actually knows UK tax.

LUMEN is trained on HMRC guidance — Class 4 NI, the 45p mileage rate, cash basis accounting. Ask it anything at 11pm before a deadline. It knows.

UK tax specifically. Not generic finance AI.
Four ways to capture. Zero excuses.

Photo, voice, GPS mileage, bank feed. No other UK tax app gives you four capture channels in one place. The gardener, the consultant, the freelancer. All covered.

The only UK app with photo + voice + GPS + banking.
Pricing

Simple.
No surprises.

SOLO
£14.99/mo
£149/yr annuallySave £30/yr

One income source. Full MTD. AI advisor included.

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MTD Income Tax quarterly submissions
LUMEN AI advisor — unlimited
IMPENSUM receipt capture
VIGIL compliance tracker
FACTURA invoicing
REDITUS income & expense ledger
Most popular
PRO
£24.99/mo
£249/yr annuallySave £51/yr

Multiple income streams. Open Banking. Priority AI.

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Everything in SOLO
Multiple income sources
Open Banking via Yapily
Priority LUMEN AI
Advanced P&L reporting
VAT tracking and reporting
AGENT
£59.99/mo
£599/yr annuallySave £121/yr

Manage all your clients from one dashboard.

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Everything in PRO
Unlimited client accounts
HMRC agent authorisation
Multi-client compliance dashboard
Client approval workflow
White-label ready

No setup fees · No hidden charges · Cancel any time · 14-day free trial on all plans

MTD is coming.
Be ready.

From April 2026, every self-employed person earning over £20,000 must file quarterly with HMRC. Miss a deadline and the penalty points start. Four and you're fined.

MerxTax handles it all. Takes under 5 minutes to set up.

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No credit card required · Cancel anytime