Personal Tax Filing Services UK

Need professional help preparing and filing your personal tax information with HMRC?

Audit Consulting Group supports UK individuals who need help organising the information required for Self Assessment, checking what needs to be reported, preparing the filing and submitting it to HMRC where submission is included in the agreed service.

Your situation may involve self-employment, property income, employment alongside additional income, dividends, investments, foreign income or several income sources. We first establish what applies to you and what information is required before preparation begins.

Get Help With Personal Tax Filing

Personal Tax Filing at a Glance

For the 2025/26 tax year, the standard online filing deadline is 31 January 2027. Different deadlines can apply in some circumstances.

Do You Need Personal Tax Filing Help?

• more than one source of income;
• self-employment alongside employment;
• rental income;
• dividends or investment income;
• foreign income;
• information from several records that needs to be brought together for one filing;
• uncertainty about what needs to be included.

Professional support is not compulsory simply because you need to file. If your affairs are straightforward and you are comfortable completing the process yourself, HMRC provides its own online filing route and guidance.

Check if you need to send a Self Assessment tax return on GOV.UK

Are You Ready for ACG to Start Your Personal Tax Filing?

Ready to Prepare

You know the relevant tax year, your Self Assessment position is in place and you have the main records covering the income that needs to be reported.

Something Is Needed First

• Self Assessment registration;
• UTR confirmation;
• missing bookkeeping;
• missing income or expense records;
• clarification of relevant income sources.

You May Need a Different Service

A different ACG service may be more appropriate for amendments, penalty appeals, tax planning or ongoing Making Tax Digital compliance.

Check Your Filing Requirements With ACG

What Our Personal Tax Filing Service Covers

• employment income and tax deducted;
• self-employment income and relevant business records;
• property income and relevant expenses;
• dividends and investment income;
• pension or other taxable income;
• foreign income;
• other information relevant to your personal filing.

Work That May Require a Separate Scope

• substantial catch-up bookkeeping;
• Self Assessment registration;
• amendments to previously submitted filings;
• penalty appeals or disputes;
• detailed tax planning;
• historic compliance work;
• ongoing MTD work;
• extensive HMRC correspondence after filing.

What ACG Does and What You Receive

1. Review the tax year and filing situation.
2. Review information supplied for the agreed scope.
3. Identify material missing information or questions.
4. Prepare the relevant personal filing.
5. Provide it for review or approval where required.
6. Submit it to HMRC where submission is included.
7. Provide relevant submission confirmation or next-step information where applicable.

ACG’s deliverable is the professional preparation and agreed filing work. HMRC remains responsible for its own records, processing, enquiries and subsequent authority decisions.

What We Need From You

You are responsible for giving ACG complete and accurate information relevant to the agreed scope.

Expert Insight from Iryna Shmulenko, Head of Accounting & Tax

The most important preparation question is often not “Do you have all your documents?” but “Have we identified all of the income sources that may need to be considered?” Establishing the full income picture first helps determine which records and supplementary information are actually required.

How Personal Tax Filing Works With ACG

1. Tell Us About the Tax Year and Your Situation

Tell us which year needs attention, your main income sources and whether you are registered for Self Assessment.

2. We Confirm the Scope

ACG establishes whether Personal Tax Filing is the appropriate service and identifies additional work separately.

3. You Provide the Relevant Information

We request records based on your circumstances.

4. ACG Prepares the Filing

We review the information, raise relevant queries and prepare the filing within the agreed scope.

5. Review, Submission and Next Steps

You review or approve the filing where required. ACG submits it where included in the engagement and provides the relevant confirmation or next-step information.

Personal Tax Filing Cost

Personal Tax Filing Deadline

• General notification date where applicable: 5 October 
• Standard paper filing deadline: 31 October 
• Standard online filing deadline: 31 January 
• Self Assessment tax due: generally 31 January 

ACG Preparation Time

For a standard Personal Tax Filing, our typical preparation time is 3–5 working days after we receive all required information and documents.

More complex cases, missing records or additional queries may require additional time. We will let you know if this applies to your filing.

ACG’s preparation time is separate from HMRC’s processing or response time.

What Happens After Your Filing Is Submitted?

1. Retain the submission confirmation and relevant records.
2. Check the tax calculation and payment position.
3. Make required payment to HMRC by the applicable deadline.
4. Keep relevant records for the required period.
5. Respond if HMRC subsequently asks for information.

HMRC controls its own processing and subsequent enquiries. Additional professional work outside the original engagement may need to be scoped separately.

Missing Information, Mistakes or an Outstanding Filing

An Income Source Is Missing

Tell ACG about the source so its relevance can be assessed.

Records Do Not Match

Differences between bookkeeping, bank records, certificates or statements may need clarification.

Preparation Starts Too Close to the Deadline

The HMRC filing deadline is not the same as the date an accountant needs your information.

Already late? Establish what needs to be submitted rather than continuing to delay. A penalty dispute or appeal may require a separate service.

Is Personal Tax Filing the Right ACG Service?

Tax Return service | Self Assessment Registration | Amend a Submitted Self Assessment | Self Assessment penalty support

Personal Tax Filing and the SA100 Form

A Note About Making Tax Digital for Income Tax

Why Use Audit Consulting Group for Personal Tax Filing?

• identifying the filing situation before preparation starts;
• requesting information based on the client’s actual income sources;
• separating standard filing work from additional work;
• giving the client an opportunity to clarify information before submission;
• distinguishing ACG’s professional work from HMRC-controlled processing.

Client Reviews

“I was struggling with my first Self Assessment tax return, but ACG explained everything clearly and submitted it on time.”

Emma Williams — Freelancer

“The UK Self Assessment form used to take me weeks. With ACG, it’s completed in days and stress-free.”

James Wilson — Consultant, Leeds

“I had no idea how to report dividends. ACG completed my Self Assessment accurately and on time.”

Hannah Patel — Small Business Owner, London

Related Personal Tax Services

• Personal Tax / Self-Assessment — broader personal tax service family.
• Self Assessment Registration — where registration is required before filing.
• Amended Self Assessment — where an existing submission needs correction.
• Self Assessment Penalties & Appeals — where the issue is a penalty or dispute.
• Personal Tax Consultation — where the main requirement is advice.
• Making Tax Digital for Income Tax — where ongoing digital reporting applies.

Personal Tax Filing FAQs

What information do you need for personal tax filing?

It depends on your sources of income. ACG may need employment records, self-employment accounts or bookkeeping, rental information, dividend or investment statements, foreign-income records and relevant HMRC correspondence.

Can ACG help if I have several sources of income?

Yes, where those sources fall within the agreed Personal Tax Filing scope. Tell us about all relevant income sources at the outset.

What is the Personal Tax Filing deadline for 2025/26?

The standard online deadline is 31 January 2027 and the standard paper deadline is 31 October 2026. Different deadlines can apply in some circumstances.

What if my filing is already late?

Tell us which tax year is outstanding and whether HMRC has contacted you. A penalty dispute may require a separate service.

How much does personal tax filing cost?

Our standard Personal Tax Filing service costs £200 + VAT. This includes reviewing the information provided, preparing your personal tax filing and submitting it to HMRC where included in the agreed service.

If additional or more complex work is required, we will confirm any additional fees with you before proceeding.

Can I file myself?

Yes. HMRC provides online Self Assessment services. Professional help may be useful where you have several income sources, incomplete records or uncertainty over what should be reported.

What happens after ACG submits my filing?

ACG provides relevant confirmation or next-step information within the agreed engagement. HMRC controls subsequent processing and enquiries.

Is Personal Tax Filing the same as ACG’s Tax Return service?

The services are closely related. This page focuses specifically on Personal Tax Filing readiness and the filing transaction. ACG maintains a separate Tax Return service page for that search and service intent.

Official HMRC Resources

• Check if you need to send a Self Assessment tax return
  
• Who must send a Self Assessment tax return
  
• Register for Self Assessment
  
• HMRC Self Assessment guidance

Get Help With Your Personal Tax Filing