Buy-to-Let Through a Company: Tax Guide
Should you hold buy-to-let property in a limited company? Complete guide to corporation tax on rental income, mortgage interest relief, and when a company structure makes sense.
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Plain-English guides to UK Corporation Tax and CT600 filing.
Company Losses: Trading vs Non-Trading on CT600
Trading losses, non-trading deficits, capital losses — learn the different types of company loss, how each is relieved, and where they go on your CT600.
Accountant vs DIY CT600 Filing: Honest Comparison
Should you pay an accountant or file your CT600 yourself? An honest comparison of costs, time, risks, and when each option makes sense for UK limited companies.
Electric Company Cars: Corporation Tax 2025
Buy an electric car through your company and claim 100% first-year allowance. Learn about BIK rates, capital allowances, and CT savings for EVs in 2025/26.
Close Company Rules & Corporation Tax Explained
Is your limited company a close company? Learn what it means for corporation tax, S455 tax on loans, and how it affects your CT600 filing.
HMRC Penalties for Late Corporation Tax Filing
What are the penalties for filing your CT600 late? Understand HMRC penalty rates, interest charges, and how to avoid or appeal late filing penalties.
Corporation Tax Deadlines Calendar 2026
Full 2026 calendar of Corporation Tax deadlines — CT600 filing dates, payment due dates, penalty dates, and quarterly instalment dates month by month.
Corporation Tax on Overseas Income: Guide
How UK companies pay corporation tax on overseas income. Covers foreign trading profits, dividends, rental income, double taxation relief, and CT600 reporting.
Optimal Director Salary 2025/26 Tax Year
Find the most tax-efficient director salary for 2025/26. We explain the NIC thresholds, employer costs, and how to save thousands through your limited company.
Disallowable Expenses for Corporation Tax (Full List)
Which expenses can't you deduct on your CT600? Complete guide to disallowable expenses for corporation tax — entertaining, fines, personal costs, and more.
Corporation Tax for Small Businesses: 2026
Complete 2026 guide to corporation tax for small businesses. Covers rates, allowable expenses, filing deadlines, payment dates, and tips to reduce your tax bill legally.
Company Tax Return (CT600) vs Annual Accounts: What's the Difference?
CT600 vs annual accounts: one goes to HMRC, one to Companies House. What each is, when they are due, and how they relate.