Individual Taxes

Services


Filing a UK Self Assessment tax return can feel complex, time-sensitive and overwhelming, particularly with evolving compliance requirements from HM Revenue & Customs.

Whether you are a sole trader, landlord, company director or higher-rate taxpayer, accurate reporting is essential to avoid penalties, reduce tax risk and ensure you claim every allowable expense and relief available to you.

OMW accountancy provide a complete Self Assessment service, from reviewing your income sources and calculating your tax liability to submitting your return directly to HMRC and advising on payments on account. We work proactively to minimise your tax position where legally possible, ensure full compliance with UK tax legislation. 

With structured processes, secure digital systems and year-round support, we remove the stress of tax deadlines and give you confidence that your Self Assessment return is accurate, optimised and submitted on time.



Self Assessment Tax Returns

How much will your Self Assessment Tax return cost annually?

We charge fees for Self Assessment Tax Returns on a modular basis. After consultation of your requirements, we will provide you a quote, fees start from £200+ vat.

Who Needs to File a Self Assessment Tax Return?

You may need to submit a UK Self Assessment return if you:

 
    • Are self-employed or a sole trader
 

    • Receive rental income from property

    • Are a company director

    • Have high income over £100,000

    • Have untaxed income benefits

    • Need to claim tax reliefs

Full Tax Return
Preparation & Filing

Our accountants prepare and electronically file your UK Self Assessment tax return directly with HM Revenue & Customs, ensuring full compliance, accurate tax calculations and timely submission to prevent HMRC penalties.

Tax Calculation &
Payments Support

We calculate exactly how much tax you owe and break it down so that you fully understand your liabilities, payment deadlines and how payments on account affect future tax bills. Our goal is to remove uncertainty and help you plan confidently.

Expense & Relief
Optimisation

We take a proactive approach, ensuring all allowable business expenses, reliefs and tax-saving opportunities are fully explored and claimed. We help lower your tax bill wherever legally possible, so you are not paying more than you need to.

"Make Tax Digital" Ready Digital
Reporting Support

We set you up with Making Tax Digital compliant software that meets the requirements of HMRC, to ensure your digital records are correctly structured. We guide you through submission, so you remain compliant and confident under the new MTD rules.

Got All Your Paperwork Ready?
Let’s Get Your Tax Return Done!

Click here to start the process!

Frequently Ask Questions.

We have curated a list of the most common questions that we get asked.

When is the Self Assessment deadline in the UK?
Online returns and payments for a tax year must be submitted by 31 January following the end of the tax year.

Will penalties apply if I miss deadlines?
Yes — HMRC charges fixed and daily penalties as well as interest on late payments. We help you meet all deadlines and reduce penalty risk.

Do I need MTD software now?
If you fall under MTD requirements based on income thresholds, you must use compliant software from the implementation date. We use Xero as our preferred system.