Plain-English guides to UK Corporation Tax and CT600 filing.
Late CT600 filing penalties explained: from 1 April 2026, £200 on day one and £400 at 3 months — doubled from previous rates. Plus 10% tax-geared penalties and 7.75% late payment interest. How to minimise the damage.
Complete guide to Corporation Tax for property investment companies. Buy-to-let through a limited company, allowable expenses, mortgage interest relief, and CT600 filing.
Complete guide to HMRC penalties for Corporation Tax — late filing (from £100 fixed, rising to £200 for deadlines from April 2026, plus up to 20% of unpaid tax), late payment interest, and inaccuracy penalties. How to avoid them.
Complete guide to filing CT600 for property investment companies. Covers rental income reporting, mortgage interest deductions, capital allowances on furnishings, property disposal gains, and step-by-step filing instructions for buy-to-let landlords.
Missed your CT600 deadline? Learn the exact HMRC penalty structure — £200 initial then 10% and a further 10% for filing dates from April 2026 — how late payment interest works at 7.75%, and the steps to fix it fast. Plus how to appeal.
What are the penalties for filing your CT600 late? Understand HMRC penalty rates, interest charges, and how to avoid or appeal late filing penalties.
How is bank interest taxed for UK limited companies? Learn the CT600 treatment, reporting requirements, and how to reduce your corporation tax on savings interest.
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.
HMRC charges interest on late corporation tax at base rate + 4% — currently 7.75%. Learn current rates, how interest is calculated, and how to avoid it.
Understand HMRC corporation tax penalties for late filing and payment, how interest is calculated, and how to appeal. Complete guide for UK company directors.
Corporation tax for property companies. Mortgage interest relief, capital gains, allowable expenses, and filing your CT600.
Missed your CT600 deadline? Learn about HMRC late filing penalties (fixed penalties escalating to 10% tax surcharges), interest charges, how to appeal, and the fastest way to get back on track.