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BTL Limited Company · Annual Accounts · CT600 · Corporation Tax · Companies House · Micro-Entity · Dividends

BTL Limited Company Annual Accounts, CT600 Filing, and Corporation Tax Deadlines

A buy-to-let limited company must file annual statutory accounts at Companies House (within 9 months of year-end) and a Corporation Tax return (CT600) with HMRC (within 12 months). Corporation Tax is payable 9 months and 1 day after year-end — before the CT600 filing deadline. This guide covers micro-entity vs small company accounts, Companies House and CT600 filing deadlines, Corporation Tax payment mechanics, and how directors extract profits via salary, dividends, and director's loan accounts.

14 min readUpdated 6 June 2026Last reviewed: 17 May 2026limited-companycorporation-taxaccountsCT600

Annual accounts format — micro-entity, small company, or full accounts

The format of a company's statutory accounts depends on its size, measured by turnover, balance sheet total, and employee count. Most single-property or small portfolio BTL SPVs qualify as micro-entities.

  • Micro-entity accounts (FRS 105) — available where two of: turnover ≤ £632,000; balance sheet ≤ £316,000; employees ≤ 10; simplified balance sheet only; P&L not publicly visible (privacy advantage)
  • Small company accounts (FRS 102 s.1A) — available where two of: turnover ≤ £10.2m; balance sheet ≤ £5.1m; employees ≤ 50; full accounts but P&L can be abbreviated at Companies House
  • All accounts must be signed by a director and include the registration number and date of approval
  • Directors' report required for small companies (not micro-entities) — states principal activities and true and fair view confirmation

Companies House filing deadline — 9 months after year-end

A private limited company must file its annual accounts at Companies House within 9 months of its accounting reference date. Separately, every company must file an annual confirmation statement within 14 days of the anniversary of incorporation (£34 online fee).

  • First accounts — within 21 months of incorporation OR 3 months from accounting reference date, whichever is later
  • Subsequent years — 9 months after accounting reference date (e.g. 31 March year-end → file by 31 December)
  • Late filing penalties — £150 (up to 1 month), £375 (1-3 months), £750 (3-6 months), £1,500 (over 6 months); doubled for two consecutive late filings
  • Persistent failure to file can lead to Companies House striking off the company (administrative dissolution)

Corporation Tax return (CT600) and payment deadlines

The CT600 is filed with HMRC (not Companies House) and is separate from the statutory accounts. Corporation Tax payment falls due 9 months and 1 day after year-end — before the CT600 must be filed.

  • CT600 filing deadline — 12 months after the end of the accounting period
  • Corporation Tax payment deadline — 9 months and 1 day after year-end (e.g. 31 March 2025 year-end → CT payment due 1 January 2026)
  • Large companies (profits over £1.5m) must pay by quarterly instalment payments during the accounting period
  • CT600 discloses: taxable total profits; allowable deductions (mortgage interest, management fees, repairs, insurance, EICR/gas safety costs); losses brought forward; Corporation Tax rate applied

Extracting profits — salary, dividends, and director's loan account

A BTL company's profits belong to the company until extracted. The main routes are salary (deductible for Corporation Tax), dividends (from post-tax retained earnings), and repayment of director's loan account balances.

  • Salary — deductible from taxable profits; most directors take salary up to NI threshold (£12,570 for 2025/26) to avoid NI while remaining CT-deductible
  • Dividends — paid from post-tax retained profits; taxed at 8.75% (basic), 33.75% (higher), 39.35% (additional) after £500 dividend allowance (2025/26); NOT deductible for CT
  • Director's loan account — repayment of amounts lent by the director to the company is tax-free; loans from company to director trigger s.455 CTA 2010 charge (25%) if not repaid within 9 months of year-end
  • Retained profits — many BTL companies retain profits for future deposits; on a share sale, gain is subject to CT at company level; shareholders may qualify for Business Asset Disposal Relief (BADR)

Frequently asked questions

What is the filing deadline for a buy-to-let limited company's annual accounts?+

A private limited company must file its annual accounts at Companies House within 9 months after its accounting reference date (year-end). Late filing attracts automatic penalties: £150 (up to 1 month late), £375 (1-3 months), £750 (3-6 months), £1,500 (more than 6 months). Penalties double for two consecutive late filings.

When is Corporation Tax due for a property company?+

Corporation Tax must be paid 9 months and 1 day after the end of the accounting period — before the CT600 filing deadline (12 months after year-end). For a 31 March 2025 year-end, Corporation Tax is due 1 January 2026. Late payment attracts HMRC interest.

What are micro-entity accounts and can a BTL company use them?+

Micro-entity accounts (FRS 105) are available to companies satisfying at least two of: turnover ≤ £632,000; balance sheet ≤ £316,000; employees ≤ 10. Most single-property or small portfolio BTL SPVs qualify. Micro-entity accounts consist of a simplified balance sheet only — the P&L is not publicly visible, which is a privacy advantage.

Templates recommended in this guide

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