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Company accounts

No law requires a limited company to use an accountant. When directors can file their own accounts and CT600, and when an accountant is worth paying for.

By Sameer Mushtaq Published 3 min read
Short answerNo. UK law doesn't require a limited company to use an accountant. Directors can prepare and file their own accounts and Company Tax Return, and Companies House has guidance for doing so. The directors stay legally responsible either way, so an accountant is worth it when the company's affairs are complex.

Does the law require an accountant?

No. There is no legal requirement for a UK limited company to use an accountant, and no qualification is needed to prepare a company’s accounts or tax return. Companies House’s guidance Using software to file your company’s information (updated 25 September 2026) includes a “file your own accounts” route for directors: choose the accounts type, find suitable software and have it in place before 1 April 2028.

What the law does require is that the accounts are right and on time. GOV.UK’s guide to running a limited company puts it plainly: directors may hire an accountant, but “you’re still legally responsible for your company’s accounts, records and performance”.

What does a small company have to file each year?

Filing Who When
Annual accounts Companies House 9 months after the accounting reference date
Confirmation statement Companies House At least once every 12 months
CT600 Company Tax Return HMRC 12 months after the period ends, if HMRC sends a notice
Corporation tax payment HMRC 9 months and 1 day after the period ends

Dormant companies file accounts and a confirmation statement, and usually no tax return. The dormant company guide explains why.

When can a director do it themselves?

Self-filing works best when the company’s affairs are simple. Typical cases:

  • A dormant company, which files a balance sheet that rarely changes from year to year;
  • A micro-entity with a handful of transactions, such as a contractor or consultant company with one or two clients;
  • A property holding company with rent in and mortgage interest out, and no staff;
  • A company the director runs alone, with tidy bookkeeping in a spreadsheet or bookkeeping app.

The micro-entity thresholds guide explains which companies count as micro-entities.

When is an accountant worth paying for?

An accountant earns their fee when there is judgement involved, or when mistakes are expensive:

  • employees on payroll, or directors paid through a mix of salary and dividends that needs planning;
  • VAT registration and returns;
  • R&D tax relief, losses carried back, group relief or overseas income;
  • accounts that need an audit, or full small-company accounts;
  • disputes or enquiries with HMRC.

Choosing one doesn’t move the responsibility. Companies House’s late filing penalties guidance lists “you relied on your accountant” among the reasons unlikely to succeed in an appeal.

What changes in April 2028?

From 1 April 2028 all accounts must be filed with commercial software in iXBRL, as described on the WebFiling closure page. Directors who type their accounts into the Companies House website today will need either software or an accountant who uses it. The change doesn’t add new accounts content for small companies: abridged accounts and the option to leave out the profit and loss account both remain.

What the cost difference looks like

The gap is wide. Accountants’ published fees for dormant accounts start around £80 plus VAT, and accounts with a CT600 for a micro company from around £299, based on fees shown in Google results for “file dormant company accounts” and “file company tax return” (DataForSEO SERP capture, 6 November 2026). Software for self-filers on HMRC’s supplier list starts at about £10 plus VAT a year for dormant companies (FileMyLtd research, November 2026).

UK searches for “do i need an accountant for a limited company” run at about 170 a month (DataForSEO, November 2026), with high advertiser bids, which says more about the value of the answer to accountants than to directors. For a dormant or simple micro company, the honest answer is usually no, as long as the deadlines are met.

Sources

  1. Using software to file your company's information (GOV.UK), updated 25 September 2026. Checked 6 November 2026.
  2. Set up a private limited company (GOV.UK), updated 14 October 2026. Checked 6 November 2026.
  3. Late filing penalties (Companies House), updated 16 January 2026. Checked 6 November 2026.

Search figures are 12-month UK averages from DataForSEO (Google Ads data), pulled 6 November 2026. Spotted something out of date? Tell us and it will be corrected.

Sameer Mushtaq

Founder and director, Cyber Spark IT Services Ltd. Checks every guide against GOV.UK and Companies House guidance on the date shown.

FAQ

Can a director file the company's accounts without an accountant?

Yes. Companies House guidance has a route for filing your own accounts, and many dormant and micro-entity companies do. From 1 April 2028 the accounts must be filed with software.

Am I still responsible if I use an accountant?

Yes. Companies House guidance says directors who hire an accountant are still legally responsible for the company's accounts, records and performance. A late or wrong filing is the company's problem, not the accountant's.

Is relying on an accountant a reason to appeal a late filing penalty?

No. Companies House lists relying on an accountant, or an accountant's illness, among the reasons unlikely to succeed on their own in an appeal against a late filing penalty.

When is an accountant worth paying for?

When the company has complex affairs: employees on payroll, VAT, R&D tax relief claims, losses to use, group structures, overseas income, or accounts that need an audit.

Create an account, add your company from the Companies House register and see your deadlines in a couple of minutes. FileMyLtd is in early access. Accounts and tax returns are being tested with Companies House and HMRC; live filing opens to early-access members first.