MerxTax
Free to use · Pay only to file

£0 to track.
From £24.99 to file.

The whole app is free — track income, scan receipts, ask LUMEN, watch your compliance score. You only pay when you file with HMRC. No subscription. Ever.

BEST VALUE · 2026-27

Season Pass

Every quarterly update for the 2026-27 tax year — all four — plus the year-end return once available, filed with HMRC.

£99.95/ year · one-time
⏳ HMRC filing activates at approval
Live submission to HMRC begins the moment we receive production approval — expected shortly. Pay now and your return is ready to file automatically at launch. If HMRC approval is not granted, or you need to file before then, you're entitled to a full refund — email support@merxtax.co.uk.
Launching soon. MerxTax isn't open to new customers yet — join the waiting list to be told the moment it launches.

Cheaper than buying each quarterly filing separately.

Rather not commit? Pay per filing instead.

Quarterly update
Per quarterly submission
£24.99
Charged when you file — pay from the filing screen.

Pay-per-file happens at the moment you submit, so you only buy the filings you actually make. The year-end return will cost £39.99when it's available, from April 2027 — it isn't available yet.

If a paid submission is rejected by HMRC because of a fault in MerxTax, you can resubmit at no extra charge.

Everything below is free, forever

REDITUS — income & expense ledger, live P&L
IMPENSUM — photo, voice & GPS-assisted capture
LUMEN — your AI tax advisor
VIGIL — compliance score & deadline tracker
FACTURA — invoicing
Connect to HMRC & prepare every quarterly update

Accountants charge £300–£1,200/year for MTD filing. The MerxTax Season Pass is £99.95 — and the rest of the app never costs a penny.