Guides
Plain answers about the filings your company can't avoid
Each guide answers one question directors ask, step by step. The rules are quoted from GOV.UK, each with a link, and none of it is advice about your own tax.
All guides
Start hereHow to file your Company Tax Return (CT600) online, start to finishWhat the Company Tax Return is, who must file, the deadlines and penalties, what you need, and each step of filing a CT600 online, from GOV.UK's own rules.Read the guide
Missed your Companies House deadline? Here's what happens next, and what you can do today.Companies House's late filing penalties for accounts, when they double, how appeals work, and getting the overdue accounts filed. GOV.UK's rules, quoted.Updated 
Accounts, tax return, confirmation statement: which one is due, and who gets it?Annual accounts, the Company Tax Return and the confirmation statement compared: who each goes to, what's in it and when it's due, from GOV.UK.Updated 
Your company's first accounts: why the first year is longer, and what's due when.Why a new company's first accounts usually run longer than a year, why it may need two tax returns, and the first deadlines, from GOV.UK's own examples.Updated 
Lost your Companies House authentication code? Here's how to get it back.What the company authentication code is, how to request it through WebFiling, how it arrives by post and how long it can take, and how to keep it safe.Updated - Looking for MTD-compatible software for Corporation Tax? Here's what GOV.UK actually says.Is there an MTD requirement for Corporation Tax? GOV.UK has a consultation and a summary of responses, but no start date or rules. Here's what it says.Updated
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