You just started something. Let's keep it legal, tidy and yours.
One Great Idea handles the accounts, filings and HMRC admin for newly formed UK companies, so the idea that got you here keeps your attention, not the paperwork.
Registered HMRC agent · works with Companies House filings
Your first year, roughly
Day one
Company incorporated — bookkeeping should start now
Month 12–14
First confirmation statement due at Companies House
Month 21
First annual accounts and tax return due
What a new company actually has to do
Three things keep a company compliant. We do all three for you.
Start bookkeeping
Every invoice and expense recorded from day one, in software that's ready for HMRC's Making Tax Digital rules.
File the confirmation statement
A yearly check-in with Companies House confirming who owns and runs the company. Miss it and the company can be struck off.
File accounts & tax return
Year-end accounts to Companies House and a Corporation Tax return to HMRC — the two filings that matter most.
The Launch Package
Everything a first-year company needs to stay compliant, for one fixed monthly fee.
No setup fee. Cancel any time.
Built for people who'd rather be building the business
One fixed fee
No surprise invoices for the odd question or extra filing. It's all in the monthly price.
A real, named accountant
One person who knows your company, not a rotating support queue.
Built for founders, not just filings
Accounting and light consulting from people who've set companies up themselves.
Thanks — that's with us.
We'll be in touch within one working day to get your company set up.
Tell us about your company
A couple of details and we'll take it from there.
Or call +44 20 3807 2808 · email onegreatidea2026@gmail.com
74 Endlebury Road, London, E4 6QG · Registered in England & Wales, company no. 16654735
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Ask us anything about getting set up — a real person reads these.