When you form a company, an accountant helps with four things: checking that a company is actually the right structure for you, getting the formation details right the first time, handling the tax registrations that follow, and setting up the records, payroll and processes the company needs before it starts trading. One boundary to state plainly at the outset: this is accounting and tax support. Company formation also has legal dimensions (shareholder agreements, disputes, complex share rights) and those need a solicitor. An accountant works alongside legal advice; nothing here is a substitute for it.

Before anything else: is a company the right structure?

Forming a company is quick and inexpensive, which is exactly why it is worth pausing first. The registration itself, described on GOV.UK, is the easy part. The question that deserves the thought is whether a limited company suits your situation better than operating as a sole trader, and the honest answer varies.

An accountant looks at your expected profits, whether you need to leave money in the business or take it all as income, your appetite for administration, what your customers or industry expect, your other income, and your plans. Sometimes the answer is “form the company”; sometimes it is “stay a sole trader for now and revisit when the numbers change”. Both are good outcomes if they are reasoned. Companies bring real obligations (statutory accounts, a Company Tax Return, filings on fixed dates) and taking those on when they buy you nothing is a cost without a benefit.

If you are moving from existing self-employment rather than starting fresh, the transition has its own considerations: timing, transferring assets, and closing off the sole trade correctly. These are worth a conversation of their own before you register anything.

Getting the formation details right

Several choices made at formation are awkward to change later, and an accountant advises on the ones with accounting and tax consequences:

  • Share structure. How many shares, of what class, held by whom. This decides how profits can be distributed and matters immediately if there are two or more people involved. Getting it wrong is the classic formation error.
  • Directors and their responsibilities. Directors take on legal duties from day one; GOV.UK’s guidance on running a company sets these out, and an accountant makes sure you know what you have signed up for.
  • Accounting reference date. The company’s year end, which shapes its filing calendar.
  • Registered office and statutory registers. Practical details that must be right and kept current.

Where the situation involves anything beyond straightforward shareholdings, such as investors, unequal contributions or family arrangements, the accountant will say so and point you to a solicitor for the legal design, then implement the accounting side of whatever is agreed.

The registrations that follow formation

Incorporation at Companies House is not the end of the paperwork; it is the start. Depending on circumstances, the new company needs to be registered for Corporation Tax, set up as an employer for PAYE if it will pay salaries (including the director’s own), and registered for VAT where required or beneficial. Each registration has its own process and timing rules, set out on GOV.UK.

An accountant handles these in the right order at the right time, which prevents the two common failure modes: registrations missed until a deadline has passed, and registrations made unnecessarily, creating filing obligations the company did not need yet.

Setting up the foundations before trading

The most valuable work happens before the first invoice:

  • A business bank account, so company and personal money never mix. With a company this separation is a legal matter, not a preference
  • Bookkeeping set up properly from day one: digital records, sensible categories, receipts captured as they happen
  • Payroll established if salaries will be paid, with the reporting cycle understood
  • A filing calendar for everything now due: accounts, Corporation Tax, VAT periods, payroll submissions, the confirmation statement
  • A plan for taking money out: salary, dividends, expenses and the director’s loan account, and the discipline of documenting each correctly

Companies that start this way never experience the expensive archaeology of reconstructing their first year. Companies that do not usually meet it at their first year end. What the ongoing relationship looks like after formation is described in what an accountant does for a limited company, and the wider first-year picture in what an accountant does for a startup.

Frequently asked questions

Can I just form the company myself online?

Yes, and mechanically it is straightforward. The risk is not the process but the choices made inside it (structure, shares, dates), which are easy to set badly and tedious to fix. The review before formation is where the value sits.

No. Accountants advise on the accounting and tax dimensions. Shareholder agreements, complex share rights and anything contractual between founders need a solicitor. A good accountant tells you when you have crossed into that territory rather than improvising.

When should I involve an accountant: before or after forming?

Before, ideally. The structure question and the share setup are both cheaper to get right than to correct afterwards. If the company already exists, the setup work is still worth doing properly. Just do it before trading builds up.

What ongoing obligations does a company bring?

Annual accounts, a Company Tax Return, a confirmation statement, payroll reporting if there are salaries, and VAT returns if registered, each on its own timetable. Current requirements and deadlines are on GOV.UK.

Should the company register for VAT immediately?

It depends on your customers, your costs and your expected turnover. Registration is compulsory in some circumstances and optional in others, and voluntary registration helps some businesses and burdens others. This is a specific question worth an accountant’s specific answer. See how an accountant can help with VAT.

For the wider picture of the ongoing relationship once the company exists, start with what an accountant does for a small business.

How we can help

Our company formations service covers the structure decision, the formation, the registrations and the day-one setup, so the company starts compliant instead of catching up. Request a quote before you register and we will make sure it is set up properly.