Written by the TaxTune Editorial Team·Reviewed by our qualified accountants·Updated June 2026

Why directors file a return

Being a director of a limited company does not by itself force you to file a Self Assessment return, but in practice most owner directors do need one. The reason is that you typically pay yourself in two ways, a salary and dividends, and the personal tax on the dividends is not collected through the company payroll.

You will generally need to file where you have dividend income above the small allowance, where you have higher rate tax to pay, or where HMRC has asked you to. Because most owner directors take meaningful dividends, a return is usually required. The company itself reports its profit and pays corporation tax separately through its limited company accounts, while your Self Assessment deals with you as an individual. Our overview of Self Assessment sets out the basics.

Declaring salary and dividends

On your personal return you bring together all of your income, but the two key items for a director are usually salary and dividends.

Your salary from the company has normally already had income tax and National Insurance dealt with through payroll, and the figures come from your P60 or payslips. You still enter it on the return so HMRC can see your full picture. Many owner directors take a modest salary, often around the £12,570 personal allowance, because it is tax efficient.

Your dividends are paid from company profit after corporation tax. They are not a business expense for the company and they do not go through payroll, so the personal tax on them is collected through your return. You enter the total dividends you received in the tax year. The way directors structure this mix is explained in our guide to how directors pay themselves.

The dividend allowance and rates

Dividends have their own allowance and their own tax rates, which sit on top of your other income.

The first slice of dividends is covered by the dividend allowance of £500, which is taxed at 0%. Above that, dividends are taxed at 8.75% while they fall in the basic rate band, and at 33.75% once your total income pushes them into the higher rate band.

Crucially, dividends sit on top of your other income when deciding which band they fall into. So a small salary uses part of your personal allowance and basic rate band first, and your dividends are then taxed at 8.75% until your total income reaches the higher rate threshold, after which the rate jumps to 33.75%. This banding is why the salary and dividend split is planned carefully.

A worked example

Worked example

A director with salary and dividends

Tom owns his company and is the only director. He takes a salary of £12,570 for the year, which uses up his personal allowance, and dividends of £40,000.

His salary uses the £12,570 personal allowance, so there is no income tax on it. His dividends of £40,000 are then taxed. The first £500 is covered by the dividend allowance at 0%. The basic rate band runs to £50,270, and after his £12,570 salary there is £37,700 of band left.

So £37,200 of dividends, being the £37,700 of remaining band less the £500 already used by the allowance, is taxed at 8.75%, which is £3,255. The remaining £2,300 of dividends falls into the higher rate band and is taxed at 33.75%, which is £776.25. His dividend tax for the year is therefore about £4,031, payable through Self Assessment.

Common mistakes

Director returns go wrong in a handful of recurring ways.

  • Assuming the company accounts cover everything. The company return and your personal return are separate. Dividend tax is yours to settle.
  • Treating dividends as a company expense. Dividends are paid from after tax profit and do not reduce the company corporation tax bill.
  • Taking dividends with no profit. Dividends must be paid from available retained profit and properly recorded, otherwise they can be challenged.
  • Forgetting the banding. Dividends stack on top of salary, so once total income crosses the higher rate threshold the rate jumps to 33.75%.
  • Missing other income. Bank interest, rental income or a second job all belong on the same return.

What you should do

Keep your payroll records and dividend vouchers together, and make sure each dividend is supported by available profit and a board minute. Plan the salary and dividend mix at the start of the year rather than scrambling at the end, and set money aside for the dividend tax because it is not collected as you go.

The online filing deadline is 31 January after the tax year, which is also when the tax is due. You can model different splits with our tax calculators, and TaxTune can handle both your company accounts and your personal return so the two line up. When you are ready, start your quote.

In short

A guide to why directors file Self Assessment, how to report salary and dividends and how dividend tax is worked out.

Frequently asked questions

Do all company directors have to file a tax return?
Not automatically, but most owner directors do. If you take dividends above the small allowance, have higher rate tax to pay, or HMRC asks you to file, you will need a Self Assessment return. Most owner directors take dividends, so a return is usually required.
How are dividends taxed?
The first £500 of dividends is taxed at 0% under the dividend allowance. Above that, dividends are taxed at 8.75% in the basic rate band and 33.75% in the higher rate band, sitting on top of your other income.
Why do directors take a small salary plus dividends?
A salary around the £12,570 personal allowance is tax efficient and keeps the company National Insurance and income tax low, while dividends are taxed at lower rates than salary. The split is planned to use the allowances and bands well.
Are dividends a company expense?
No. Dividends are paid from profit after corporation tax, so they do not reduce the company tax bill. The personal tax on them is paid by you through Self Assessment.
When is the director tax return due?
The online Self Assessment deadline is 31 January after the end of the tax year, and any personal tax you owe, including dividend tax, is due on the same date.
Does my salary still go on the return if tax was taken at source?
Yes. Even though payroll has dealt with the tax and National Insurance on your salary, you still enter it on the return so HMRC has your full income picture.