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Plain-English guides to UK Corporation Tax and CT600 filing.

9 results for “dormant company”Clear search
23 February 2026

Dormant Company CT600 — How to File a Nil Return

Your dormant company still needs to file a CT600 with HMRC. Here's how to file a nil return quickly and avoid penalties — even if your company did nothing all year.

ct600dormant-companynil-returncorporation-taxguide
23 February 2026

How to File a CT600 for a Dormant Company (Step-by-Step)

Complete guide to filing a dormant company CT600. Even if your company did nothing, you still need to file. Here's exactly how.

ct600dormant-companyhmrcguide
23 February 2026

Dormant Company Accounts & CT600: Filing Guide for Companies That Aren't Trading

How to file dormant company accounts with Companies House and a nil CT600 with HMRC. Step-by-step guide with deadlines and requirements.

ct600dormantcompanies-housecorporation-tax
23 February 2026

Dormant Company CT600: The 15-Minute Nil Return Guide (2026)

Got a dormant company? You still need to file a CT600. This 2026 guide shows you how to file a nil return in 15 minutes — even without HMRC's free service.

dormant companyCT600nil returncorporation taxHMRC2026
22 February 2026

Do I Need to File a CT600 If My Company Made No Profit?

Yes — even if your company made no profit, you almost certainly need to file a CT600. Learn about nil returns, dormant companies, and how to file for £59.

ct600nil returndormant companyno profitcorporation taxfiling
21 February 2026

Dormant Company Corporation Tax: Do You Need to File a CT600?

Find out if your dormant company must file a CT600 with HMRC. When you're exempt, when you must file, and how to submit a nil return.

21 February 2026

How to File a Nil CT600 Return for a Dormant Company

Step-by-step guide to filing a nil Corporation Tax return for your dormant limited company. Avoid penalties — even dormant companies must file with HMRC.

CT600dormant companynil returnHMRCcorporation tax
20 February 2026

Associated Companies — How They Affect Your Corporation Tax Rate

How associated companies change your Corporation Tax thresholds. What counts, what doesn't, dormant company exemption, and how to report them on your CT600.

associated companiescorporation taxthresholdsmarginal reliefCT600tax rate
19 February 2026

Dormant Company CT600 Filing: Do You Still Need to File? (Yes — Here's How)

Your dormant company still needs to file a CT600 with HMRC. Learn what counts as dormant, how to file, and the fastest way to stay compliant for just £59.

dormant companyCT600corporation taxHMRCfilingcompliance