Limited company vs sole trader: how the bookkeeping, tax and admin differ

The choice between operating as a sole trader and setting up a limited company is usually discussed in terms of tax. But it is also a choice about paperwork. The two structures need different books, different filings and different habits. Whichever you choose, you should know what you are signing up for. This article compares them side by side, focusing on the bookkeeping and admin consequences, with the main tax points so you can see the whole picture.

The legal difference in one paragraph

A sole trader and their business are the same legal person. The business has no separate existence: you own its assets, owe its debts and take its profits personally. A limited company is a separate legal person. It owns its assets and owes its own debts, and you, as director and shareholder, are separate from it. That separation brings limited liability, but also more rules and records.

Side-by-side comparison

	Sole trader	Limited company
Legal status	Same person as the business	Separate legal entity
Liability	Unlimited personal liability	Limited to the company's assets, generally
Registration	HMRC only	Companies House and HMRC
Business bank account	Recommended	Required, in the company's name
Accounting method	Cash basis or accruals	Accruals
Annual filings	Self Assessment return	Accounts, Corporation Tax return, confirmation statement
Tax on profit	Income tax and Class 4 NIC	Corporation Tax, then tax on pay and dividends
How you get paid	Drawings	Salary, dividends, expenses, loans
Records kept for	5 years after 31 January	6 years from the accounting period end
Privacy	Business details private	Company details public

Bookkeeping for a sole trader

For a sole trader, bookkeeping is the recording of income and allowable expenses so that taxable profit can be calculated. You also record drawings, which are simply you taking your own money out, and they have no tax effect in themselves. Typical tasks include recording sales and expenses, reconciling the bank, keeping receipts and, if registered, handling VAT. From April 2026, sole traders with income over £50,000 must also send Making Tax Digital quarterly updates. Our guide to sole trader bookkeeping goes through it.

Bookkeeping for a limited company

A limited company needs everything a sole trader needs, plus more.

A director's loan account. Every transaction between you and the company that is not salary, dividends or expenses is recorded here. An overdrawn balance can trigger a 33.75% tax charge. See director's loan account explained.

Salary and payroll. If you pay yourself a salary, the company must operate PAYE, file reports on or before each payday and pay HMRC. See payroll bookkeeping for small employers.

Dividends. Distributions from post-tax profit need board minutes and dividend vouchers, and can only be paid from distributable profits.

Statutory accounts. The company must prepare annual accounts in a prescribed format and file them at Companies House, where they become public.

Corporation Tax. The company files its own tax return and pays tax on its profits. See our Corporation Tax calculator.

Year-end procedures. Accruals, prepayments, stock and fixed assets all matter more because accounts must follow accounting standards. See the year-end bookkeeping checklist.

Our limited company bookkeeping guide covers each of these in detail.

Tax: the headline differences

Sole trader. Pays income tax on profit at 20%, 40% or 45% above the personal allowance, plus Class 4 National Insurance at 6% and 2%. Our sole trader tax calculator shows the result.

Limited company. The company pays Corporation Tax at 19% on profits up to £50,000 and 25% above £250,000, with marginal relief between. The director then pays income tax and National Insurance on salary and dividend tax on dividends. Because the company pays tax first, and dividends are taxed again when received, the total depends on how much you pay yourself.

At lower profits, the difference can be small or even in favour of sole trader once you add the cost of running a company. At higher profits, the ability to retain profit in the company and to make employer pension contributions can favour a company. Our director salary and dividend calculator compares them using your own numbers, and an accountant can advise on your situation.

VAT, payroll and other obligations

VAT works the same for both, with registration at £90,000 of taxable turnover. See our VAT guide. Both must follow Making Tax Digital for VAT. Employers' obligations are the same in both structures, but a company director who is the only employee has a different position on Employment Allowance.

Costs and time

A limited company costs more to run. You will normally need an accountant to prepare statutory accounts, there are Companies House fees, and bookkeeping takes longer. In our instant quote tool, a limited company adds about half an hour a month to the base bookkeeping time, which is £7.50 at £15 an hour, and more if you add VAT and payroll. Our guide to bookkeeping costs shows typical totals for each. A sole trader typically pays less, but remember to include the accountant and the time you spend.

Control and privacy

A sole trader makes every decision and takes all the profit, with fewer formalities. A company has directors who owe duties to the company and must keep statutory records. Company filings, including accounts and director details, are public, while a sole trader's business affairs are private.

Credibility and borrowing

Some customers and lenders prefer dealing with a limited company, and a company can raise equity and have multiple shareholders. A sole trader can find it harder to bring in investors. If you plan to grow, hire or sell the business, a company is often the better vehicle.

Switching from sole trader to limited company

Many businesses start as sole traders and incorporate later. The switch involves new books, a new bank account, transferring assets, deregistering and re-registering for VAT in some cases, and telling HMRC. Plan the move for the start of a tax year or VAT period, and make sure your books at the changeover date are clean. Our software migration and bookkeeping clean-up services help.

Which is right for you?

Ask yourself:

1. How much profit do you expect over the next few years?
2. Do you need limited liability?
3. Do you want to retain profit in the business?
4. Do you want to bring in investors or partners?
5. How much admin are you willing to take on, or pay for?
6. Do your customers prefer dealing with a company?

If you are unsure, speak to an accountant. At Bookkeeping Services we keep the books for either structure at the same £15 hourly rate. See bookkeeping for limited companies and bookkeeping for sole traders.

Frequently asked questions

Is bookkeeping harder for a limited company?

Generally yes. There are more accounts, more filings and a director's loan account, so it usually takes more time.

Do I pay less tax as a limited company?

Not necessarily. If you pay out all the profit, the difference at moderate profits can be small. It depends on your profit and how you take it.

Can a limited company use the cash basis?

No. Companies must use accruals.

Do I need a separate bank account?

For a company, yes. A sole trader should have one, though it is not a legal requirement.

Can you do my bookkeeping either way?

Yes. Get an instant quote and choose your business type.