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Corporation tax and company filing guides
Every guide in one place: what you owe, when it is due, what happens if you file or pay late, and what an accountant should cost. Written for UK limited company directors and reviewed for 2026/27.
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QuickBooks PartnerCertified ProAdvisor100+ yearsCombined team experienceFully insuredUp to £2m indemnityCompanies House late filing penalties: full guide
Companies House late filing penalties for private companies, from £150 to £1,500, repeat offence rules, appeals and practical next steps.
Director tax guideS455 tax explained: director's loan account tax
S455 tax explained for overdrawn director's loans, including the 35.75% charge, nine month deadline, benefit in kind rules and repayment relief.
Corporation Tax guideHow to pay Corporation Tax to HMRC
How to pay Corporation Tax to HMRC safely, find the correct 17 character reference, choose a payment method and avoid allocating tax to the wrong period.
Corporation Tax guideUK Corporation Tax rates: current rates explained
Current UK Corporation Tax rates explained, including the 19% small profits rate, 25% main rate, marginal relief and associated company rules.
Corporation Tax guideHMRC Corporation Tax: complete guide for limited companies
A complete HMRC Corporation Tax guide for limited companies, covering registration, taxable profits, rates, records, payment, CT600 filing and corrections.
Company deadline guideCorporation Tax deadlines: when does a company pay?
Corporation Tax payment and CT600 deadlines explained with examples, first year rules, quarterly instalments, weekends and separate Companies House dates.
Corporation Tax guideCT600: what is a Corporation Tax return?
What a CT600 company tax return contains, who must file, the 12 month deadline, required accounts and computations, penalties and common mistakes.
Corporation Tax guideWhat happens if you pay Corporation Tax late?
Late Corporation Tax explained, including HMRC interest, CT600 penalties, Time to Pay, debt recovery and the practical steps directors should take.
Company property tax guideStamp Duty for limited companies buying property
Stamp Duty Land Tax for limited companies buying residential property in England, including higher rates, the £500,000 corporate rate, reliefs and ATED.
Limited company guideDo I need an accountant for my limited company?
There is no legal requirement to appoint an accountant for a UK limited company. Here is what you must do yourself, where directors get caught out, and when the fee pays for itself.
Limited company guideHow much does an accountant cost for a limited company?
Real UK price ranges for limited company accountants in 2026/27, what each fee level includes, what is usually excluded and how to compare quotes properly.
Accountancy fees guideLimited company accounts cost: what should you pay?
Limited company accounts costs explained, from annual-only filing to monthly packages, including what affects fees, hidden extras and how to compare quotes.
Dormant company guideDormant limited company: accounts, tax and filing guide
Dormant limited company requirements explained, including dormant accounts, confirmation statements, Corporation Tax status, allowable transactions and penalties.
Director tax guideDirector's loan account: complete guide
Director's loan accounts explained, including credit and overdrawn balances, s455 tax, beneficial loans, dividends, write offs and bookkeeping records.
Limited company tax guideHow much tax does a limited company pay?
Limited company taxes explained, including Corporation Tax, VAT, PAYE, employer National Insurance, dividend tax, business rates and tax on company cars.