Contractor Tax Return Example for UK Ltd Companies

A contractor tax return example is most useful when it shows how the figures connect, rather than simply listing tax rates. For many UK contractors operating through a limited company, there are two separate tax positions to manage: the company’s Corporation Tax return and the director’s personal Self Assessment return. Payroll, dividends and allowable expenses sit between them.

This example uses the 2025/26 tax year and assumes the contractor lives in England, Wales or Northern Ireland. It is illustrative only. Your position can change materially if IR35 applies, you have other income, your company has associated companies, or you live in Scotland.

Contractor tax return example: limited company

Meet Alex, an IT contractor who works through Alex Consulting Ltd. During the year, the company invoices clients £80,000, excluding VAT. Alex is outside IR35 for the contracts in this example and has no other personal income.

The company pays £8,000 of allowable business expenses. These include accountancy fees, professional subscriptions, business insurance, software, a proportion of mobile costs and legitimate travel expenses. Expenses must be incurred wholly and exclusively for the business. A personal purchase does not become deductible simply because it was paid from the company bank account.

Alex takes a salary of £12,570 through PAYE. This broadly uses the standard Personal Allowance, although the right salary level depends on the tax year, National Insurance position and wider circumstances. The company also pays employer’s National Insurance of £1,135.50 on this salary. We have assumed no Employment Allowance is available.

Here is the company’s simplified profit calculation:

| Company calculation | Amount | | --- | ---: | | Sales income | £80,000.00 | | Less allowable expenses | (£8,000.00) | | Less director’s salary | (£12,570.00) | | Less employer’s National Insurance | (£1,135.50) | | Taxable company profit | £58,294.50 |

For 2025/26, a company with taxable profits between £50,000 and £250,000 may qualify for marginal relief, subject to its circumstances. In this example, the estimated Corporation Tax is £11,698.05.

After Corporation Tax, the company retains approximately £46,596.45. That is not automatically Alex’s personal money. It remains company money unless it is paid out correctly, for example as salary, reimbursed expenses, employer pension contributions or dividends supported by sufficient distributable profits.

Alex decides to declare and pay dividends of £40,000. The remaining £6,596.45 stays in the business as working capital for future costs, tax and quieter periods between contracts.

What appears on the director’s Self Assessment return

Alex’s personal tax return will report salary and dividends, not the company’s turnover or its full list of business expenses. The £80,000 invoiced belongs on the company accounts and Corporation Tax return. This distinction is one of the most common sources of confusion for new limited company contractors.

Alex’s total personal income is £52,570:

• Salary: £12,570

• Dividends: £40,000

The salary is covered by the Personal Allowance in this example, so no Income Tax is due on it. The dividend calculation then uses the remaining basic rate band and the £500 dividend allowance available for 2025/26.

The first £500 of dividends is taxed at 0%, but it still uses part of Alex’s tax bands. Most of the remaining dividends fall into the basic rate band and are taxed at 10.75%. A small proportion falls into the higher rate band and is taxed at 35.75%.

Alex’s estimated dividend tax is £4,642.50. This is normally paid through Self Assessment by 31 January following the end of the tax year, rather than when the dividend is paid. The total personal tax can be different where a contractor has rental income, employment income, pension income, Gift Aid payments or a spouse who receives some dividends.

Alex’s overall picture

Alex’s company has paid estimated Corporation Tax of £11,698.05. Personally, Alex has an estimated dividend tax bill of £4,642.50. The salary was processed through PAYE, while the company also accounted for employer’s National Insurance.

This does not mean Alex has been taxed twice on the same income in an unfair way. Corporation Tax is charged on the company’s profit. Dividend tax is charged when the shareholder receives a distribution of post-tax company profits. A limited company can still offer useful planning options, but the benefit depends on profit level, contract status, the need for cash personally and how much profit can be retained for business purposes.

Which returns does a contractor need to submit?

The phrase “contractor tax return” can describe several different filings. For a limited company contractor, the usual responsibilities are:

• Annual statutory accounts for Companies House.

• A Company Tax Return and Corporation Tax calculation for HMRC.

• PAYE reporting each time the company pays a salary.

• A personal Self Assessment tax return for the director where required.

VAT returns may also apply if the company is VAT-registered. They are not included in Alex’s figures because VAT is generally collected and paid over separately, rather than treated as sales income or a business cost. The precise treatment can differ under the Flat Rate Scheme or where there are partially exempt supplies.

Key dates to plan around

Good records make deadlines manageable, but cash planning matters just as much. A contractor can be profitable on paper and still face a difficult payment month if tax funds have been spent on drawings or business costs.

For most companies, Corporation Tax is due nine months and one day after the accounting period ends. The Company Tax Return is generally due 12 months after the period end. Self Assessment returns are normally due by 31 January after the end of the relevant tax year, with any balancing payment due on the same date.

There may also be payments on account for Self Assessment. If Alex’s tax liability is high enough, HMRC may ask for advance payments towards the following year’s personal tax bill. This often catches contractors out in their second year because the January payment can include the previous year’s balance plus the first payment on account.

What changes if you are inside IR35?

This contractor tax return example assumes Alex works outside IR35 through a genuine limited company engagement. If a contract is inside IR35, tax and National Insurance are usually deducted from the deemed employee income. Where the client is a medium or large business, it will commonly be responsible for determining status and operating deductions.

The company may still have filing obligations, but the salary-and-dividend approach needs careful review. Do not assume that an outside-IR35 company calculation can be reused for an inside-IR35 engagement. Contract wording, actual working practices and who controls the work all matter.

What if you are a sole trader contractor?

A sole trader’s contractor tax return is simpler in one respect: there is no separate company. You report business income and allowable expenses on Self Assessment, then pay Income Tax and self-employed National Insurance on the resulting profit.

However, simplicity is not automatically cheaper. A sole trader cannot pay themselves dividends, retain profits in a company, or separate personal and business finances in the same way. The right structure depends on expected profit, commercial risk, administrative preference, IR35 status and future plans. It should be reviewed rather than chosen purely because another contractor uses it.

Records that make the return easier

The figures above only work if they are supported by accurate records. Keep sales invoices, expense receipts, bank statements, mileage records where relevant, dividend vouchers, board minutes and payroll reports. Reconcile the company bank account regularly and keep personal spending separate from company transactions wherever possible.

A clear monthly process also gives you a better view of what is actually available to withdraw. Revenue is not profit, and cash in the bank is not always spare cash once VAT, Corporation Tax, payroll and future operating costs are allowed for.

The strongest contractor tax return is not prepared at the last minute. When bookkeeping, payroll and tax planning are kept up to date, you can make decisions with confidence and keep more attention on the contracts and clients that grow your business.