What self-filing actually involves
Filing yourself means preparing statutory accounts to the correct format, computing corporation tax adjustments such as capital allowances and disallowable expenses, and submitting through commercial software since HMRC withdrew its own free CT600 filing tool for anything beyond the simplest company.
It is achievable for a very simple dormant or micro company, but becomes materially harder once there is payroll, VAT, foreign currency transactions or cross-border tax questions, all of which are common for non-resident-owned companies.






