01
Upload
Export your bank statement as CSV. We support Barclays, Lloyds, HSBC, NatWest, Monzo, Starling, Halifax and Santander.
Your MTD return
in 10 minutes
MTD ITSA is now in force on HMRC's phased timetable (first band from 6 April 2026). Upload your bank statement, review AI-categorised transactions, and submit quarterly updates and year-end declaration in one click.
From £39/year after your free first return · No credit card required
How it works
Three steps to filed
From bank statement to HMRC submission. Quarterly updates and year-end declaration. No jargon, no spreadsheets.
02
Review
AI categorises every transaction against HMRC expense categories. Review and confirm in minutes.
03
Submit
One click sends your quarterly update or year-end declaration directly to HMRC. Instant confirmation and a PDF summary.
Before you start
You'll need these
In place before connecting Quartax to HMRC.
MTD ITSA enrolment
HMRC must have enrolled you. Check your Personal Tax Account.
Bank statement CSV
Export from your bank's app or website for the quarter.
Not sure? Email us
Built for UK landlords and sole traders
Trusted, secure, and compliant with HMRC requirements.
Bank-level security
Bank details are stripped before AI processing. We never see your login credentials.
Official HMRC MTD API
Built on HMRC's published MTD endpoints. Submissions go directly to HMRC.
MTD ITSA compliant
Built for UK property income and self-employment as MTD obligations roll out by income band.
Your data, your control
Export anytime. Cancel with one click. We never sell your information.
Ready to simplify your tax filing?
Simple filing for landlords and sole traders — upload, review, submit. From £39/year after your free first return.
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