Understand how the recent changes will increase corporation tax through reduced writing-down allowance for businesses.

June 13, 2026June 1, 2026Tax ReturnMerranti

Self Assessment for Company Directors: When You Need to File a Tax Return

Company directors do not automatically need to file a Self Assessment tax return just because they are directors. The need to file depends on your income, whether HMRC has asked you to file, and whether you have tax to report that is not fully dealt with through PAYE.

A director may need to file a Self Assessment tax return if they receive dividends, have untaxed income, claim certain reliefs, receive taxable benefits, have property income, make capital gains, or need to report other personal tax matters.

The key point is this: your limited company’s Corporation Tax Return is separate from your personal Self Assessment tax return. The company files its own tax return for Corporation Tax. You file a personal tax return only if your personal circumstances require it.

For help with personal tax returns, see Merranti’s Self Assessments page.

Company tax and personal tax are separate

A limited company is legally separate from its directors and shareholders.

That means there are two different tax positions:

the company’s tax position
the director’s personal tax position

The company may need to prepare annual accounts and file a Company Tax Return. The director may separately need to file a Self Assessment tax return if their personal income or circumstances require it.

This distinction matters because many directors assume that once the company accounts are done, everything has been reported. That is not always correct.

For example, the company may report salary through payroll and dividends through the company accounts, but the director may still need to report dividend income personally.

For company-side compliance, Merranti’s Limited Company Accounting and Annual Accounts pages are relevant internal links.

Do all company directors need to file Self Assessment?

No. Not every company director needs to file a Self Assessment tax return.

A director who only receives salary taxed correctly through PAYE and has no other income or tax matters may not need to file solely because of being a director.

However, many owner-managed company directors do need to file because they receive dividends, have benefits, take director’s loans, receive rental income, have investment income, or need to report other personal tax items.

GOV.UK says you may need to send a tax return if you have untaxed income, including money from renting out property, tips and commission, income from savings, investments and dividends, or foreign income.

So the question is not simply “am I a director?” The better question is: what income have I received personally, and has the right tax already been collected?

Dividends and Self Assessment

Dividends are one of the most common reasons company directors need to file a personal tax return.

If you own shares in your company and receive dividends, those dividends are personal income. The company does not deduct PAYE tax from dividends in the way it does from salary.

GOV.UK states that individuals can earn some dividend income each year without paying tax. For 2026/27, the dividend allowance is £500, and dividend tax rates above the allowance are 10.75% for basic-rate taxpayers, 35.75% for higher-rate taxpayers and 39.35% for additional-rate taxpayers. GOV.UK also notes that your dividend tax band is worked out by adding dividend income to your other income, meaning you may pay tax at more than one rate.

This is important for directors who take a low salary and dividends. Even if the salary is taxed through payroll, the dividends may create a personal tax bill.

Before year-end, directors should check:

salary received
dividends received
other employment income
savings interest
rental income
pension income
capital gains
student loan position
High Income Child Benefit Charge
payments on account

This helps avoid surprise personal tax bills in January.

Salary through payroll

Director salary is usually reported through payroll if the company operates PAYE.

If salary has been correctly reported and taxed through PAYE, it may not create a Self Assessment requirement by itself. However, the salary still forms part of your total income and affects how dividends and other income are taxed.

For example, if your salary uses up part or all of your Personal Allowance and basic-rate band, dividends may be taxed at a higher dividend rate.

Director salary should therefore be reviewed alongside dividends, not separately.

For support with director payroll, see Merranti’s Payroll page.

Benefits in kind

Some directors receive benefits from the company. These may include:

company cars
private medical insurance
living accommodation
beneficial loans
personal use of company assets
certain expenses paid by the company

Benefits in kind can create personal tax reporting requirements. Some benefits are reported through payroll, while others may be reported on forms such as P11D.

A director who receives benefits should check whether they need to file Self Assessment or whether the tax has been collected correctly through another route.

Company cars, medical insurance and director loans are common areas where personal tax issues can arise.

Director’s loan accounts and Self Assessment

A director’s loan account records money moving between a director and the company.

If a director owes money to the company, receives a loan, or has a loan written off, personal tax issues can arise. Loans above certain levels can also create benefit-in-kind issues.

A director’s loan is not automatically the same as income. But if the loan is written off, released, or treated as a benefit, the director may have personal tax to report.

This is why director withdrawals need careful recording. Money taken from the company should be categorised properly as salary, dividends, expense reimbursement, loan repayment, or director’s loan account movement.

Other income that may trigger Self Assessment

Company directors may need to file for reasons unrelated to their company.

Common examples include:

rental income
self-employment income
partnership income
savings or investment income
foreign income
Capital Gains Tax
High Income Child Benefit Charge
pension contributions requiring higher-rate relief
income from trusts or estates
student loan repayment issues
income over certain thresholds

GOV.UK states that you must send a tax return if, in the last tax year, you were self-employed as a sole trader and earned more than £1,000 before expenses, were a partner in a business partnership, had to pay Capital Gains Tax, had to pay the High Income Child Benefit Charge and do not pay it through PAYE, or were an off-payroll worker repaying a student or postgraduate loan.

Directors should therefore review their full personal tax position, not only their company income.

What are the Self Assessment deadlines?

For the 2025/26 tax year, which ran from 6 April 2025 to 5 April 2026, GOV.UK states the main Self Assessment deadlines are:

tell HMRC you need to complete a tax return by 5 October 2026, where required
paper tax return deadline: 31 October 2026
online tax return deadline: 31 January 2027
payment deadline for tax owed: 31 January 2027
second payment on account deadline, if relevant: 31 July

The deadline for online filing and paying tax is the same date, but directors should not wait until January to estimate the bill.

If dividends have been taken throughout the year, the personal tax bill may be significant. Planning earlier gives the director more time to set cash aside.

What records should directors keep?

Directors should keep records that support the figures included on the personal tax return.

These may include:

P60s
P45s
payslips
dividend vouchers
bank statements showing dividend payments
P11D forms
benefits information
director’s loan account summaries
rental income and expense records
savings interest certificates
pension contribution records
investment income records
capital gains records
charitable donation records
student loan information
previous tax return and HMRC statements

Dividend vouchers are especially important for owner-managed company directors. They show the date, company, shareholder, dividend amount and other supporting details.

For company record keeping, Merranti’s Annual Accounts page is a useful supporting link because personal dividend reporting should align with company records.

Common mistakes company directors make

Assuming PAYE covers everything

PAYE may cover salary, but it does not necessarily cover dividends, rental income, capital gains, benefits or other untaxed income.

Forgetting dividend tax

Dividends are not tax-free simply because Corporation Tax has already been paid by the company. The shareholder may still have personal dividend tax to pay.

Confusing company accounts with personal tax returns

The company files its own Corporation Tax Return. The director may separately need a Self Assessment tax return.

Not keeping dividend vouchers

Dividend paperwork supports both the company records and the director’s personal tax return.

Leaving the tax bill until January

Directors who take dividends should estimate personal tax before the deadline, not after the money has been spent.

Ignoring payments on account

Some taxpayers need to make payments on account towards the next year’s tax bill. This can make the January payment larger than expected.

What if HMRC sends you a notice to file?

If HMRC sends you a notice to file a Self Assessment tax return, you normally need to submit one, even if you think there is no tax to pay.

If you believe you no longer need to file, you should contact HMRC and ask to be removed from Self Assessment. Do not simply ignore the notice.

Ignoring a filing requirement can lead to penalties, even where the final tax bill is low or nil.

How to reduce Self Assessment stress

Directors can make Self Assessment easier by keeping personal tax records during the year rather than trying to reconstruct everything in January.

A practical process is:

Keep dividend vouchers as dividends are declared.
Save payslips and P60s.
Track any company benefits.
Review director’s loan account balances.
Keep rental, savings and investment records.
Estimate personal tax before 31 January.
Set aside cash for dividend tax.
Check whether payments on account apply.
Ask for advice before taking unusual payments from the company.
File before the deadline, not on the deadline.

How Merranti can help

Self Assessment for company directors can be straightforward when salary, dividends and records are organised. It becomes more difficult when dividends, benefits, director’s loans, rental income or other personal tax matters are left until the deadline.

Merranti Accounting can help company directors prepare Self Assessment tax returns, review dividend income, understand personal tax bills, align personal returns with company accounts and plan salary and dividends more effectively.

If you are a company director and are unsure whether you need to file, visit Merranti’s Self Assessments page, see Limited Company Accounting, or contact Merranti to discuss your position.

FAQ ideas

Do all company directors need to file a Self Assessment tax return?

No. Not every company director needs to file solely because they are a director. You may need to file if you receive dividends, have untaxed income, receive benefits, have rental income, make capital gains, or HMRC asks you to file.

Do I need to report dividends on a tax return?

You may need to report dividends if they exceed your available allowances or if HMRC requires you to file a tax return. Dividends should be reviewed alongside your salary and other income.

Is my company tax return the same as my Self Assessment tax return?

No. A Company Tax Return reports the company’s Corporation Tax position. A Self Assessment tax return reports your personal tax position.

What is the Self Assessment deadline for directors?

For 2025/26, online Self Assessment tax returns and tax payments are due by 31 January 2027. Paper returns are due by 31 October 2026.

What records should directors keep for Self Assessment?

Directors should keep payslips, P60s, dividend vouchers, P11Ds, benefits records, director’s loan account details, bank records and any information relating to other taxable income.

Can Merranti help directors with Self Assessment?

Yes. Merranti can help company directors prepare Self Assessment tax returns, review dividend income, understand personal tax bills and align personal tax reporting with company accounts.

Schema and publishing notes

Recommended structured-data candidates:

Article schema
FAQPage schema for the FAQ section
HowTo schema may be suitable for the director tax return preparation checklist
LocalBusiness or AccountingService schema if used within the wider site template