About Taxley
Why we built Taxley
Taxley is UK Corporation Tax filing software from Taxley UK LLP (LLP number OC461735, England and Wales) that lets directors of small limited companies prepare their own CT600 and iXBRL accounts, file the return to HMRC and file the accounts at Companies House. Taxley at taxley.co.uk is a UK business and is not connected with taxley.com (a US tax-resolution business), Taxly or any other similarly named business.
It is independent software with one fee per return, which also covers filing the accounts at Companies House. We built it because a simple Corporation Tax return shouldn't need an accountant-sized bill.
- Taxley UK LLP
- LLP no. OC461735
- Incorporated 30 September 2026
- ICO registration ZC263823
- Security & data
The problem
What problem does Taxley solve?
Many UK limited companies — a dormant company, a small landlord, a one-person consultancy — have genuinely simple tax affairs, yet the usual option is an accountant charging £500–£1,500 a year. And since HMRC closed its free online service for company accounts and tax returns on 31 March 2026, HMRC expects a company filing its own return to use commercial software.
The return itself is often the easy part. What's missing is a tool that walks you through it in plain English, works out the tax from your figures, produces the iXBRL accounts and computation HMRC expects, and files the return — for a price that matches the size of the job. Taxley can file the accounts at Companies House too, at no extra cost.
What we believe
What principles is Taxley built on?
Four principles shape the product: you pay one clear fee per return instead of a subscription, you stay in control of the figures and the declaration, guided steps use plain English rather than box numbers, and we're honest that Taxley is independent software, not an accountant.
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Pay for the job, not a subscription
One clear fee when you choose to file — shown before you pay, and nothing while you prepare or preview. No retainer, no lock-in.
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You stay in control
The figures are yours and the declaration is made by you, not by us. We show every number and the schedule behind it so you can check the return before it goes anywhere.
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Plain English over jargon
Guided steps, worked examples and a free calculator — not a wall of box numbers. The technical detail is there when you want it, tucked out of the way when you don't.
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Honest about what we are
We're independent software, not an accountant. We say so plainly, and we tell you when a case is beyond what the tool should handle on its own.
Being straight with you
Is Taxley an accountant or tax adviser?
No. Taxley prepares figures and files them on your instruction — it isn't tax advice, and using it doesn't make us your accountant or agent. It's independent software for straightforward returns, and we tell you when a case is beyond what the tool should handle on its own.
The product is still maturing. Some calculations and the iXBRL tagging are marked in the product for you to check carefully. Taxley carries losses forward and sets them against profits, carries trading losses back 12 months, calculates most capital allowances claims, works out most chargeable gains, handles section 455 tax on directors' loans, supports group relief between UK companies, and handles foreign income with double taxation relief, but it doesn't handle terminal loss claims or R&D claims — Taxley can't file those parts of a return yet. We'd rather tell you that up front than pretend a tool can do everything.
Taxley files through HMRC's Government Gateway with its own software vendor ID; live filing began in June 2026.
How we keep information accurate
Our guides are written from official sources — legislation, HMRC manuals and GOV.UK guidance — and link to them so you can check the figures yourself. Every guide shows when it was last updated; when we correct or refresh one, its update history says what changed and when, and corrections of fact are listed in our corrections log. Our editorial policy sets out the full standard, and our security page explains how we protect your data.
The company
Which company is behind Taxley?
Taxley is built and run by Taxley UK LLP, a UK limited liability partnership registered in England and Wales (LLP number OC461735), incorporated on 30 September 2026. Taxley UK LLP's members include Taxley Limited (company 17299929). We're a small, independent team — the same kind of business Taxley is designed to serve — and you can always reach a human.
- Legal name
- Taxley UK LLP
- LLP number
- OC461735
- Incorporated
- 30 September 2026
- Registered in
- England and Wales, United Kingdom
- Registered office
- 27 Old Gloucester Street, London, WC1N 3AX
- Data protection
- Registered with the Information Commissioner's Office (ICO), registration number ZC263823
Common questions
About Taxley, answered
No. Taxley at taxley.co.uk is a UK business and is not connected with taxley.com (a US tax-resolution business), Taxly or any other similarly named business. Taxley is run by Taxley UK LLP, a UK limited liability partnership registered in England and Wales (LLP number OC461735), and helps directors of small UK limited companies prepare their CT600 and iXBRL accounts and file the return to HMRC.
Taxley is built and run by Taxley UK LLP, a UK limited liability partnership registered in England and Wales (LLP number OC461735), incorporated on 30 September 2026, based at 27 Old Gloucester Street, London, WC1N 3AX. We are a small, independent team — the same kind of small business the product is designed to serve.
Yes. Personal and financial identifiers and the filings we generate are encrypted at rest, traffic is TLS-only, and there is a full audit trail. You can export or delete your data at any time, and we are registered with the ICO. See the Security page for detail.
Yes. You can reach us at support@taxley.co.uk or through the contact page, and a human replies — usually within one business day.
See it for yourself
Free to prepare and preview — you only pay when you choose to file.
Start your return