Annual Accounts Explained for Limited Company Directors

Every limited company in the UK has two separate annual filing obligations that run on different timelines to different government bodies — and confusing them is one of the most common compliance mistakes directors make.

Companies House requires annual accounts within 9 months of your financial year-end. HMRC requires a corporation tax return (CT600) within 12 months, with any tax due within 9 months and one day. The deadlines overlap but are not identical, and the penalties for missing each are structured differently.

What are annual accounts?

Annual accounts (also called statutory accounts) are a formal financial summary of your company's activity for a given accounting period — typically 12 months. They tell the story of what money came in, what went out, what the company owns, and what it owes.

For a small one-person limited company, they usually consist of:

• Profit and loss account (P&L) — income, expenses, and net profit or loss
• Balance sheet — what the company owns (assets) vs what it owes (liabilities) at year-end
• Notes to the accounts — disclosure of key figures and accounting policies
• Director's report — a brief statement on business activities (often just a paragraph for micro-entities)

The key deadlines for a limited company

Note: the corporation tax payment deadline is one month earlier than the return deadline. You must calculate what you owe and pay it before the return is due. Late payment incurs interest at HMRC's current rate (5.5% in 2026-27).

What micro-entity accounts look like

Most one-person limited companies qualify as micro-entities — companies with turnover under £632,000, assets under £316,000, and fewer than 10 employees (you need to meet two of three criteria). Micro-entity accounts are significantly simplified: no profit and loss has to be publicly filed, only a balance sheet goes to Companies House, and there's no audit requirement.

This means the accounts your accountant files at Companies House are not the same as the full accounts prepared for HMRC — the Companies House version shows far less. Competitors, clients, and the public can see only the balance sheet.

Understanding the profit and loss account

Your P&L shows the company's trading performance for the year:

• Turnover — total invoiced revenue (excluding VAT)
• Cost of sales — direct costs attributable to delivering your service (subcontractor costs, direct materials)
• Gross profit — turnover minus cost of sales
• Overheads / operating expenses — salary, accountant fees, subscriptions, office costs, etc.
• Operating profit — what's left after all expenses
• Corporation tax provision — the estimated tax due
• Profit after tax — what remains in the company to distribute or retain

Golden nugget: retained profit is not the same as cash

One of the most common points of confusion for new directors: your P&L might show £30,000 profit after tax, but your business bank account might only have £8,000 in it. This is normal. Profit is an accounting concept — cash is what's actually in the account. If you've taken salary and dividends during the year, paid corporation tax, and had debtors who haven't yet paid, the cash balance will differ significantly from the retained profit figure. Always look at both the P&L and the balance sheet together.

The corporation tax return (CT600)

Separate from the accounts, your accountant must file a CT600 return with HMRC detailing the company's taxable profits and the corporation tax calculation. This is not public — it goes to HMRC only. For most small companies it's a straightforward document, but it must be filed within 12 months of the company's year-end, even if no tax is due.

What to check before signing off your accounts

As a director, you're legally responsible for the accounts — even if an accountant prepared them. Before approving, check:

• Turnover matches what you invoiced during the period
• Your salary and dividends are correctly shown
• The director's loan account balance matches your records
• The corporation tax figure matches the payment you made (or need to make)
• Any significant one-off items (asset purchases, unusual expenses) are explained in the notes

If anything doesn't look right, ask your accountant before signing. Signing accounts you haven't reviewed is a legal risk — directors can be personally liable for false or misleading accounts filed at Companies House.