Plain-English guides to UK Corporation Tax and CT600 filing.
HMRC charges escalating penalties for late CT600 filing, starting at £100. Here's exactly what happens, how to avoid penalties, and what to do if you've already missed the deadline.
Late CT600 filing penalties explained: £100 at 1 day late, £200 at 3 months, plus interest and tax-geared penalties. How to avoid them.
HMRC is closing its free Corporation Tax filing service on 31 March 2026. Here's what this means for your company and the cheapest alternatives.
HMRC is closing its free Corporation Tax filing service on 31 March 2026. What this means for your company and how to prepare.
Calculate your CT600 filing deadline and Corporation Tax payment deadline. Different deadlines explained with examples for various accounting periods.
When to pay Corporation Tax, how to pay HMRC, payment reference numbers, and the consequences of late payment. Complete guide for limited companies.
How to file dormant company accounts with Companies House and a nil CT600 with HMRC. Step-by-step guide with deadlines and requirements.
HMRC's free CT600 filing service ends 31 March 2026. Here's exactly what to do if you've just found out — step-by-step, no panic required.
Miss your CT600 deadline and HMRC charges escalating penalties from £100 to 10% of unpaid tax. Learn the exact penalty structure, appeal options, and how to file on time.
HMRC is withdrawing its free CT600 filing service on 31 March 2026. Learn what this means for your company, your options for filing after the deadline, and how to switch to affordable software before it closes.
Complete guide to HMRC Business Tax Account for limited companies. Learn how to register, access your corporation tax records, check deadlines, view payments, and manage your CT600 obligations online.
Missed your CT600 deadline? Learn the exact penalty amounts (£100, £200, 10%, 20%), how interest is calculated, and the steps to fix it fast. Plus how to appeal.