Incorporation is the easy part. The decisions that actually shape your first trading year are the ones founders rush past on the Companies House form.
Most founders treat incorporation as the starting line. In practice it is a set of small, sticky decisions that are cheap to make well on day one and expensive to unpick in month nine. The form takes under an hour. The consequences last as long as the company does.
Decide what the company is for before you name it
Your SIC code, registered office and share structure all get chosen in the same sitting, usually in a hurry. Each one leaks into things you will care about later: which lenders and payment providers will underwrite you, what shows on your public record, and how painful it is to bring in a co-founder or investor.
- SIC codes describe what you actually do — pick the ones a bank or PSP would recognise, not the most flattering ones.
- Your registered office is public. If you work from home, use a service address rather than putting your flat on the register.
- Issue more than one share. A single £1 share makes even a small equity split awkward later.
- Keep the company name and the trading brand separable — you can trade under a different name without re-incorporating.
Open the operational rails in the same week
A company number on its own does not let you trade. The gap between incorporation and first invoice is where momentum dies. Business bank accounts increasingly ask for proof of trading activity, which is circular if you have not traded yet — so line up the account, the payment provider and the accounting software while the incorporation is still fresh.
The companies that trade fastest are not the ones that incorporated first. They are the ones that treated setup as a system rather than a certificate.
Know which clocks started
Incorporation starts several deadlines at once: your accounting reference date, your confirmation statement, and your Corporation Tax registration with HMRC. None of them are difficult. All of them generate penalties if they are discovered late. Put them in a calendar the same day, not the same quarter.
VAT is the one worth understanding early even if you are nowhere near the threshold. Registration is mandatory above a rolling twelve-month turnover limit, but voluntary registration can be worth it if you sell mainly to other VAT-registered businesses and carry real input costs. Confirm the current threshold and rules on gov.uk before you decide — the figure moves.
What we would do differently
If we were setting up again tomorrow, we would spend the saved hour on the customer journey instead of the company structure. Register cleanly, get the rails open, then put everything else into the thing that actually produces revenue: a clear offer, a way to be found, and a way to be paid.