Expert insights
for UK directors

How UK limited companies use trading losses in 2026: current-year relief, 12-month carry back, carry forward against total profits, the £5m deductions allowance, property losses and the exact CT600 boxes (45, 160, 250, 275, 280, 285, 780).

Everything you need to know about registering a UK limited company in 2026: company types, names, directors, shareholders, PSCs, identity verification, share capital, fees, timelines and your first-year obligations to Companies House and HMRC.

A comprehensive guide to WeFile’s free Self Assessment feature: who it supports, how the guided SA100 process works, what you need before starting, direct HMRC submission, amendments, security and current limitations.

Simplify your 2026 compliance. Discover the best software to file dormant company accounts and nil CT600 tax returns with HMRC and Companies House easily.

Learn what disallowable expenses are, why they are added back in a Corporation Tax computation, common examples and how they affect a Company Tax Return.

How WeFile protects filing credentials and company data using encryption, access controls and redacted audit records, plus the limits you should know.

Capital allowances for limited companies in 2026: AIA, full expensing, writing-down allowances and the correct CT600 boxes for each claim.

Understand common HMRC and Companies House CT600 submission codes, what each response means, and the practical steps to fix rejections.

CT600E for charities and CASCs explained: exemption claims, boxes E5 to E200, long accounting periods and separate Companies House accounts filing.