Frequently asked questions

Directors of UK limited companies of any business type (trading, services or property) filing micro-entity (FRS 105) or small-company (FRS 102 Section 1A) accounts. Dormant companies, charities (CT600E) and community amateur sports clubs (CASCs) have dedicated routes, and you can manage several companies from one account. Accountants and agents can also file for clients in agent mode, using their own agent Government Gateway login. Taxley is designed for straightforward cases.

A CT600 return (with CT600E supplementary pages for charities), FRS 105 or FRS 102 Section 1A accounts, and tax computations in inline XBRL (iXBRL), ready to file with HMRC. You can also file the accounts at Companies House from Taxley, at no extra cost. PDF copies of the return, accounts and computation can be downloaded, marked as drafts until the return is filed.

Yes. Companies House accounts filing has been live in Taxley since 28 September 2026, at no extra cost, for micro-entity, small, abridged and dormant accounts. Once the return is paid and the accounts are finished, press “File accounts at Companies House”, using the company's 6-character authentication code. Taxley doesn't file confirmation statements, uploaded accounts, accounts Companies House already has, or some first accounts.

This is common in a company's first year. A Corporation Tax accounting period cannot exceed 12 months, so Taxley splits a long period of account into two accounting periods, time-apportions your figures and prepares two CT600 returns. You enter your figures once.

No. The Companies House lookup completes your company details from the public register, and you can upload a trial-balance CSV, which Taxley maps onto the profit and loss account for you to review.

Yes — but check what "dormant" means first. For Corporation Tax it means no significant transactions in the period; HMRC may already treat your company as dormant, so a return may not be needed at all (check your correspondence). A company with no income or expenses isn't dormant: it needs a normal return with zero figures — pick your usual business type and enter zeros. Dormant status in Taxley skips the profit and loss step — use only if you genuinely didn't trade. See gov.uk/dormant-company.

You are. Taxley prepares the return and accounts from the figures you enter, but their accuracy and completeness remain your responsibility as the person filing. You, not Taxley, make the declaration that the return is correct and complete.

Not for anything Taxley supports. Taxley carries losses forward and sets them against profits for you, and calculates most capital allowances claims for you. It also works out most chargeable gains on UK property and shares bought in one go. It works out section 455 tax on a director's loan that's still outstanding. Group relief between UK companies in a 75% group is supported too. Overseas interest, dividends and rent are supported, with relief for foreign tax. A trading loss can be carried back to the previous 12 months. Terminal loss claims or R&D claims aren't supported yet — Taxley can't file those parts of a return. Taxley is a software provider, not your accountant or tax agent.

No. Taxley is a software provider and only transmits a return when you choose to submit it. If you are an accountant or tax agent, you can use agent mode to file for your clients with your own agent Government Gateway credentials.

No. You remain responsible for paying HMRC by the deadline, normally 9 months and 1 day after the end of your accounting period, and for filing your return on time.

Your company's Unique Taxpayer Reference (UTR), Government Gateway credentials enrolled for Corporation Tax, and your company registration number (CRN). Taxley uses your Government Gateway user ID and password only to send your return and never keeps your password; the user ID is kept, encrypted, in the submission record.

Yes. Taxley applies the main rate, the small profits rate and marginal relief, including adjustments for associated companies and short accounting periods, apportioned across financial years. These calculations are flagged for review and should be checked.

Losses, yes: Taxley carries trading losses, UK property business losses and non-trading loan relationship deficits forward from one Taxley return to the next (or you enter the brought-forward figure) and sets them against profits, and you can claim to set this period's trading loss against the company's other profits of the same period. You can also carry a trading loss back against the profits of the previous 12 months (CTA 2010 s.37); HMRC then repays or sets off the earlier year's tax. Terminal-loss claims are not supported. Capital allowances are calculated for most claims — the annual investment allowance, the main and special rate pools, full expensing, the zero-emission car first-year allowance and the structures and buildings allowance — from what you bought and sold. Leasing, freeports, the VAT capital goods scheme, partial first-year-allowance elections and non-standard assets still need your own figure.

You will see HMRC's response in your account. Your prepared files remain available, so you can correct the issue and resubmit. HMRC's processing, acceptance decisions and service availability are outside our control.

Yes, if you filed it with Taxley. Press “Amend this return” on the filing page, correct the figures and file the amended return, normally within 12 months of the filing deadline. An amendment costs the standard fee for a return of that kind. It goes to HMRC. If that period's accounts aren't at Companies House yet, you can file them there too; Taxley doesn't file revised accounts Companies House already has.

Yes, back to accounting periods that started on 1 April 2020. Profits before 1 April 2023 are taxed at the single 19% rate, and a period that straddles that date is split, with marginal relief on the later part. For those older periods you enter the capital allowances yourself, and the super-deduction isn't claimed.

Yes. You can upload your own iXBRL accounts file instead of Taxley's, and Taxley checks the company number, dates and key figures against your return before filing it to HMRC. Taxley doesn't file uploaded accounts at Companies House, so you file those there yourself.

Personal and identity fields and your generated filings are encrypted at rest, all traffic uses TLS, and an audit trail records account activity with a hashed (never raw) IP address. You can export or delete your data from the My data page. See our Privacy policy and Security page for details.

A one-off fee per return, shown before you pay and charged through Stripe only when you choose to file. The fee also covers filing your company's annual accounts at Companies House — Companies House doesn't charge for this. There is no subscription, and preparing and previewing your return is free.

Tax records are kept in line with HMRC requirements, generally six years from the end of the accounting period. Other data is deleted on request, subject to that statutory retention.