- May 28, 2026
- By Merranti
Do company directors need to file a Self Assessment tax return?
A company director does not automatically need to file a Self Assessment tax return just because they are a director. However, many directors do need one because they receive dividends, have untaxed income, owe tax that has not been collected through PAYE, have a director’s loan issue, receive rental income, have capital gains, or HMRC has asked them to file.
GOV.UK’s Self Assessment guidance explains who must send a tax return and when a tax return may be needed.
GOV.UK’s dividend tax guidance explains how dividend income should be reported to HMRC.
Merranti’s Self Assessment registration guide is a useful starting point because directors often fall into Self Assessment through dividends, side income, rental income or other untaxed income rather than salary alone.
Being a director is not always enough by itself
There is a common belief that every company director must file a Self Assessment tax return.
That is too broad.
A director who receives only salary taxed fully through PAYE, has no dividends, no benefits, no untaxed income, no capital gains and no HMRC notice to file may not need a tax return purely because of the directorship.
However, many owner-managed company directors do not have that simple position.
They often receive dividends.
They may have director’s loan account movements.
They may receive benefits from the company.
They may own rental property.
They may have savings interest, investment income or capital gains.
They may also have income from more than one source.
That is why the practical answer is not “all directors must file” or “directors never need to file”.
The answer depends on what income and tax issues the director has in the tax year.
Salary through PAYE may not require a return
If your only income is salary taxed through PAYE, you may not need to register for Self Assessment.
PAYE usually collects Income Tax and National Insurance through payroll.
For a director who only receives a salary and has no other income or tax charge, there may be nothing extra to report.
But this assumes payroll is being run correctly.
It also assumes the director has no company benefits, no unpaid tax, no dividend income, no director’s loan benefit, and no other sources of income.
Merranti’s salary and dividends guide is useful because many directors take income through both payroll and dividends. That can change the Self Assessment position.
Dividends often trigger the issue
Dividends are one of the main reasons company directors need to think about Self Assessment.
GOV.UK’s dividend reporting guidance says you must tell HMRC every year you receive dividends that you have tax to pay on.
If you already send a Self Assessment tax return, you must report dividend income on the return.
If you do not send a tax return, how you report dividends depends on how much dividend income you received.
GOV.UK says that, for dividend income up to £10,000, you may be able to ask HMRC to update your tax code or contact the helpline if you do not already file a return.
For dividend income over £10,000, you need to fill in a Self Assessment tax return.
This matters for owner-managed company directors because dividends can be a normal part of income extraction.
A director taking a modest salary and larger dividends may need Self Assessment even where the company payroll itself is correct.
Merranti’s salary and dividends guide is relevant because dividends need to be planned alongside company profit, Corporation Tax, dividend tax and the director’s wider income.
Dividends still need proper company records
A Self Assessment tax return reports the director’s personal dividend income.
It does not fix bad dividend records inside the company.
A dividend should usually be supported by:
available distributable profit
a dividend decision
dividend vouchers
proper company records
accurate shareholder details
correct allocation between shareholders
If payments have been taken from the company without checking profit or preparing paperwork, they may not be valid dividends.
They may instead become director’s loans.
Merranti’s director’s loan guide is useful because unclear withdrawals can create tax problems for both the company and the director.
Merranti’s guide on how directors accidentally create tax bills is also relevant where money has been taken informally and then treated as a dividend after the event.
Director’s loans can create Self Assessment issues
A director’s loan can also affect whether a director needs to report something personally.
GOV.UK’s director’s loan guidance explains that where a director owes the company money, there can be company tax and personal tax consequences.
If a director owes the company more than £10,000 at any time in the year and does not pay interest at the official rate, the loan may create a benefit in kind.
That can lead to:
P11D reporting
personal tax for the director
Class 1A National Insurance for the company
Self Assessment entries
additional record-keeping
This is separate from the company’s Section 455 tax position.
A director can have a company-level tax issue and a personal tax reporting issue at the same time.
Merranti’s Section 455 tax guide explains why overdrawn loan accounts should be reviewed before the repayment deadline.
Benefits in kind may need reporting
Company benefits can also create personal tax.
Examples might include:
company cars
private fuel
medical insurance
beneficial loans
living accommodation
assets made available for private use
certain company-paid personal costs
Some benefits are reported through payroll. Others may be reported on a P11D.
A director who receives taxable benefits may need to check whether all tax has been collected through PAYE or whether Self Assessment is needed.
Merranti’s company vehicles and tax guide is useful where the benefit relates to a car, van, fuel or electric vehicle.
Merranti’s guide on taxable company perks is also relevant because benefits are often misunderstood in small companies.
Other income can bring a director into Self Assessment
The Self Assessment question is about the individual, not only the company.
A company director may need to file a personal tax return because of income completely separate from the limited company.
GOV.UK’s Self Assessment guidance says you may need to send a tax return if you have untaxed income such as rental income, tips and commission, savings, investments, dividends or foreign income.
This can include:
rental income
Airbnb income
foreign income
investment income
dividends from other companies
crypto gains
capital gains
self-employment income
partnership income
High Income Child Benefit Charge
income from trusts or estates
For example, a director may have a company salary fully taxed through PAYE, but still need a return because they rent out a property.
Another director may need a return because they sold shares or crypto and have a Capital Gains Tax position to report.
Merranti’s Self Assessment guide is useful because Self Assessment often becomes relevant when income sources become more varied.
HMRC can ask you to file
If HMRC sends a notice to file a tax return, you usually need to submit one even if you think there is no tax to pay.
GOV.UK’s Self Assessment overview says you must send a return if HMRC asks you to.
This is important.
A director should not ignore a notice to file just because their income was taxed through PAYE or because they believe no tax is due.
If a return is not needed, it may be possible to ask HMRC to withdraw the notice. But until HMRC agrees, the filing obligation should be taken seriously.
Ignoring the notice can lead to penalties.
The 5 October registration deadline
If you need to complete a tax return and have not sent one before, you usually need to tell HMRC by 5 October after the end of the tax year.
GOV.UK’s Self Assessment deadlines guidance explains the 5 October deadline for telling HMRC you need to complete a return.
For example, if a director first needs a return for the 2025/26 tax year, which ended on 5 April 2026, the normal registration deadline is 5 October 2026.
This deadline is often missed because many people think only of the January filing deadline.
The January deadline matters, but 5 October matters first if you are new to Self Assessment or need to reactivate your account.
Merranti’s Self Assessment key dates guide is useful because Self Assessment has several deadlines, not just 31 January.
The 31 January filing and payment deadline
For most online tax returns, the deadline is 31 January after the end of the tax year.
GOV.UK’s Self Assessment deadlines guidance explains that online returns and tax payments are normally due by 31 January.
This means the 2025/26 online Self Assessment return is normally due by 31 January 2027.
The tax payment is also normally due by that date.
This may include:
balancing tax for the year
Class 2 or Class 4 National Insurance for self-employed income where relevant
student loan repayments
Capital Gains Tax
High Income Child Benefit Charge
first payment on account for the next tax year
A director who takes dividends may find that tax is not collected automatically during the year, so the 31 January bill can feel larger than expected.
Merranti’s Self Assessment deadlines guide explains why the timing matters for cash flow.
Payments on account can surprise directors
Payments on account are advance payments towards the next tax year’s Self Assessment bill.
They commonly surprise directors who have dividend income.
If your Self Assessment tax bill is over the relevant threshold and not enough tax has been collected at source, HMRC may ask for payments on account.
This can mean paying:
the balancing payment for the year just ended
the first payment on account for the next year by 31 January
the second payment on account by 31 July
This can make the January payment feel much higher than the tax for one year alone.
Merranti’s Self Assessment key dates and penalties guide is useful because payments on account, filing deadlines and payment penalties often interact.
If income has fallen, it may be possible to reduce payments on account, but reducing them too far can create interest if the final tax bill is higher than expected.
The company tax return is separate
A director’s personal Self Assessment return is not the same as the company’s Corporation Tax return.
The company files its own Company Tax Return.
The director may also file a personal Self Assessment return.
GOV.UK’s Company Tax Return guidance explains that a company works out its profit or loss for Corporation Tax and its Corporation Tax bill. This is separate from the director’s personal tax position.
This distinction is important.
The company may have filed its accounts and Corporation Tax return correctly, but the director may still need to report dividends personally.
The director may have filed a personal tax return, but the company may still need accounts and a Company Tax Return.
Merranti’s Corporation Tax guide is relevant because owner-managed company directors often need both company and personal tax reviewed together.
Common mistakes directors make
The first mistake is assuming every director automatically needs a tax return.
That is not always correct. The need depends on income, tax owed, benefits, dividends and HMRC notices.
The second mistake is assuming PAYE covers everything.
PAYE may cover salary, but it does not automatically collect dividend tax, rental income tax, Capital Gains Tax or other untaxed income.
The third mistake is ignoring dividends.
Directors taking dividends often need to report them to HMRC, especially where dividend income is over £10,000 or tax is due.
The fourth mistake is confusing company tax and personal tax.
The company’s Corporation Tax return does not report the director’s personal dividend tax.
The fifth mistake is ignoring HMRC letters.
If HMRC asks for a return, the notice should be dealt with.
The sixth mistake is leaving the return until January.
By then, there is less time to correct dividend paperwork, review payments on account, gather records or plan for the tax bill.
Speak to Merranti before the Self Assessment deadline
A company director does not always need a Self Assessment tax return, but many do.
A proper review should check salary, dividends, benefits in kind, director’s loan accounts, rental income, investment income, capital gains, High Income Child Benefit Charge, HMRC notices and payments on account.
Merranti’s Self Assessment registration guide, Self Assessment key dates guide, salary and dividends guide, director’s loan guide and Corporation Tax guide are useful starting points.
If you are a company director and are unsure whether you need to register for Self Assessment, contact Merranti Accounting before 5 October or before taking dividends so the personal and company tax position can be reviewed properly.
Do all company directors need to file a Self Assessment tax return?
No. Being a director does not automatically mean you need to file a Self Assessment tax return. However, many directors do need one because they receive dividends, benefits, untaxed income, rental income, capital gains or have been asked by HMRC to file.
Do I need Self Assessment if I only take a PAYE salary?
Not usually, if the salary is fully taxed through PAYE and you have no other income, benefits, tax charges or HMRC notice to file. The position should still be checked if your circumstances change.
Do dividends need to go on a tax return?
If you already file a Self Assessment tax return, you must include dividend income on it. If dividend income is over £10,000, GOV.UK’s dividend reporting guidance says you need to fill in a Self Assessment tax return.
What is the Self Assessment registration deadline?
You usually need to tell HMRC by 5 October after the end of the tax year if you need to complete a return and have not sent one before. GOV.UK’s Self Assessment deadline guidance explains the deadline.
When is the Self Assessment filing deadline?
The online filing and payment deadline is usually 31 January after the end of the tax year. For the 2025/26 tax year, the normal online deadline is 31 January 2027.
Is my company tax return the same as my personal tax return?
No. The company’s Corporation Tax return reports company profits and Corporation Tax. A personal Self Assessment return reports the director’s personal income, such as salary, dividends, rental income and gains.
