United Kingdom / Guides
United KingdomGuides that answer the question, then cite the source
Deadlines, obligations and bookkeeping practice in plain words. Every guide opens with the direct answer, dates its volatile figures, and links the statute or agency page it derives from — so you can check us instead of trusting us.
Deadlines & calendars
When a UK private company must file its annual accounts and confirmation statement with Companies House, and what happens when a filing is late.
Corporation tax: the CT600 and the two different deadlinesA UK company must pay its Corporation Tax 9 months and 1 day after its accounting period ends, but the Company Tax Return (CT600) that reports and confirms that liability is not due until 12 months after the same period end — roughly three months later, so the payment comes before the paperwork that documents it.
Making Tax Digital: where the timeline standsWhere Making Tax Digital actually stands today — VAT already mandatory, Income Tax rolling out in phases from April 2026 — and what digital records and compatible software require in practice.
The UK company year: ARD, periods and the tax yearHow a UK company's accounting reference date is set, the rules for changing it, and why a company's own financial year runs independently of the 6 April personal tax year.
UK payroll year end: P60s, P11Ds and the April rhythmWhat a UK employer's payroll year-end actually involves: the 5 April cut-off, the final payroll report, P60s by 31 May, P11Ds by 6 July, and the shift toward mandatory payrolling of benefits from 2027.
Penalties & what late costs
A UK private company that files its annual accounts even one day after the Companies House deadline is charged automatically, on a four-band scale from £150 to £1,500, and the amount doubles if accounts were also late the previous financial year.
VAT late-submission penalty points, explainedHow the VAT penalty points system actually works — separate points thresholds for monthly, quarterly, and annual filers, a fixed £200 charge once the threshold is reached, how points expire, and why late payment is a completely different penalty regime.
Practice, software & boundaries
Neither "bookkeeper" nor "accountant" is a protected title in the UK — what the law actually restricts is the word "chartered", the statutory audit report, and anti-money laundering supervision.
Can you file your own company accounts? Yes — here is how it worksA UK company director can prepare and file the annual accounts personally with no professional qualification required — what changes by company size is how much has to be filed, and from April 2028 how it has to be filed.
Does a UK limited company need an accountant? The law says no — here is the real pictureNo UK statute requires a limited company to have an accountant — a director can legally prepare and file the accounts and Company Tax Return themselves. The one activity company law reserves to a professional is the statutory audit, which must be carried out by a statutory auditor eligible via a Recognised Supervisory Body, and most small companies qualify for audit exemption entirely.
Outsourcing bookkeeping as a UK company: what to checkOutsourcing bookkeeping is lawful and common for UK companies; the checks that actually matter are whether a UK-facing provider is registered for anti-money laundering supervision, whether a lawful mechanism covers any transfer of personal data outside the UK, and who controls access to the accounts.