When is the Self Assessment tax return deadline?

31 October for paper returns, and 31 January for online returns and payment of tax due, for the tax year ending 5 April.

What is the penalty for filing a tax return late?

An initial £100 penalty if up to three months late, plus £10 per day for up to 90 days if more than three months late, with further penalties after six and twelve months, plus interest on unpaid tax.

When is the Corporation Tax deadline?

The return is due within 12 months of the end of your accounting period, but any tax owed must be paid within nine months and one day after the end of the accounting period.

Fleet, Hampshire · IAB Regulated

Personal and Small Business Tax Preparation Services

MSA Accountants Fleet provide personal tax services for Self Assessment and income tax — stay compliant and optimise your tax return with expert help.

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Tax services

At MSA Accountants, we understand the complexities of tax regulations, and we are here to help you navigate through them seamlessly. Our tax services are designed to ensure compliance and reduce stress for our clients.

Personal tax

We offer a range of specialised services tailored to meet your individual needs.

✓Tax return filing
✓Rental income tax filing
✓Capital gains tax
✓CIS refund claim
✓Income tax advice
✓Tax relief claims
✓Rental and dividend income reporting
✓Tax residency advice
✓HMRC correspondence

Business tax

We offer a range of specialised services tailored to meet your individual needs.

✓Corporation tax return filing
✓VAT registration and filing
✓PAYE and National Insurance compliance
✓CIS return filings
✓Tax planning and strategy
✓Capital allowances
✓HMRC correspondence
✓Dividend vs salary tax planning

Personal Tax Services in the UK

From £165.00

Who Needs to File a Self Assessment Tax Return?

In the UK, you are required to file a Self Assessment tax return if you:

✓Are self-employed or a partner in a business
✓Earn over £100,000 annually
✓Receive income from rental properties, dividends, or overseas income
✓Claim Child Benefit and your income exceeds £50,000
✓Have capital gains to report
✓Earn untaxed savings or investment income exceeding £10,000

What Information Do You Need to File?

You must report all sources of income, including:

✓Employment income (if not fully taxed at source)
✓Self-employment earnings
✓Rental income
✓Capital gains from the sale of assets
✓Foreign income & dividend income
✓Any other taxable benefits or savings

When Are the Filing Deadlines?

Paper returns31 October

Online returns31 January

Payment due31 January

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Initial Penalty£100 if your return is up to three months late.

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Daily Penalties£10 per day (up to 90 days) for returns more than three months late.

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Further PenaltiesAdditional fines for returns over six and twelve months late.

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Interest ChargesInterest accrues on any unpaid tax.

Business Tax Services in the UK

From £350.00

Who Needs to File Business Taxes?

✓Sole Traders and Partnerships: must file a Self Assessment tax return
✓Limited Companies: must file a Corporation Tax return with HMRC

What Documents Need to Be Filed?

✓Sole Traders: report business income and allowable expenses through Self Assessment
✓Partnerships: submit a partnership tax return, plus individual Self Assessment returns for each partner
✓Limited Companies: file a Corporation Tax return, including full accounts, tax computations, and capital allowances

When Are the Deadlines for Business Tax Filing?

Self-employedOnline returns due by 31 January following the end of the tax year

Corp. Tax filingWithin 12 months of the end of your accounting period

Corp. Tax paymentNine months and one day after the end of the accounting period

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Self-employed & PartnershipsPenalties are similar to those for personal tax.

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Corporation Tax£100 penalty for late filing, increasing to £200 if more than three months late. Additional daily penalties and interest may apply.

Why Choose Our UK Tax Services?

Our experienced team is here to ensure your tax affairs are managed efficiently and in full compliance with HMRC requirements.

✓Expert Tax Advice ✓Accurate & Timely Filing ✓Strategic Tax Planning ✓HMRC Representation

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