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Template · HMRC
HMRC Complaint Letter Template (UK, Free Download)
A template for lodging a formal complaint regarding HMRC service failures, delays, or errors.
Built by a practising Chartered Accountant · Unlimited users · 60-day free trial · Last updated 23 September 2026
Quick answer
If you have experienced poor service, significant delays, or repeated errors from HMRC, you can file a formal complaint. HMRC has a structured complaints process, and you should typically start by contacting the relevant department before escalating to a formal letter. [VERIFY] Complaints can also be submitted online in some cases.
Who is this sent to, and when?
- Sent to
- HMRC
- When to send it
- After standard resolution attempts have failed
When should you file a complaint with HMRC?
File a complaint when standard channels have failed to resolve an issue, such as long delays in processing returns, incorrect penalties that aren't being fixed, or poor conduct by staff.
Keep a log of all previous phone calls, names of staff you spoke to, and copies of letters sent. This evidence is vital for a successful complaint.
Preview the template
Check the current process on GOV.UK before sending — many requests are now made online.
HMRC Complaint Letter Template
Formal Complaint to HMRC
HMRC Complaints
[Relevant Address or 'HMRC, BX9 1AB']
Date: [Date]
Client Name: [Client Name]
UTR/VAT Number: [Reference Number]
Complaint Reference (if any): [Reference]
Dear Sir/Madam,
I am writing to lodge a formal complaint regarding the service received from HMRC in relation to [Topic, e.g., 'the delay in processing my VAT registration'].
The details of my
Preview shows the opening and key sections. The full editable file is free to download below.
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Send this from Remindoo
Save it once in Remindoo and send it from there. Store the wording as an email template, then use tokens so client names, company numbers and dates fill in automatically. Send it to one client or to a filtered group with bulk client emails. For requests that repeat, pair it with automated reminders and a recurring task so it goes out every period without anyone remembering. For engagement letters and proposals, use proposals and letters of engagement with e-signatures.
What are the common mistakes?
- Being overly aggressive or rude
- Not providing specific dates or references
- Failing to state the desired outcome
- Complaining about a technical tax point rather than service
“Automation saves time and no follow-up is missed.”
Frequently asked questions
How long does a complaint take?
HMRC aims to respond within 15 working days, but complex cases can take longer.
Can I get compensation?
Yes, in cases of significant service failure, you can claim for 'worry and distress' or reimbursement of professional fees incurred due to their error.
What if I'm still not happy?
You can ask for a 'Tier 2' review by a different officer, and eventually escalate to the Adjudicator's Office.
Can my MP help?
Yes, you can ask your MP to refer your case to the Parliamentary and Health Service Ombudsman if all other routes fail.
Should I keep paying tax during a complaint?
Generally, yes. A complaint about service doesn't usually pause your statutory tax obligations.
Is there an online form?
Yes, you can often find a 'Complain to HMRC' link on the relevant service page on GOV.UK.
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Sources
Last updated 23 September 2026. General guidance, not regulatory advice.
Why recording every task matters in an accountancy practice
Accounting firms run on deadlines: VAT returns, payroll, confirmation statements, accounts and Self Assessment. Recording every job as a task, with an owner and a date, is the simplest way to make sure nothing is missed.
Avoid penalties
HMRC and Companies House charge penalties for late filing. A task for every deadline, with an internal date before it, gives the team a buffer.
Nothing depends on memory
Recorded tasks mean work continues when someone is off sick, on leave or has left the firm.
Consistent quality
Subtask checklists make every job follow the same steps and reviews, whoever does the work.
Visibility for managers
Filters by owner, status and deadline show at a glance what is late, what is due and who needs help.
Practical tips from UK practice
- Set an internal deadline two to four weeks before every statutory deadline.
- Use recurring tasks for repeat work such as VAT, payroll and bookkeeping.
- Break larger jobs into subtasks, including a review step.
- Comment on the task instead of by email, so the history stays with the work.
Related Remindoo features
Written and reviewed by Waqas Sagar ACA FCCA FMAAT, Chartered Accountant with 18+ years in practice. Founder and MD of Accotax, an ICAEW, ACCA and AAT regulated London practice that has served over 5,000 clients, and founder of Remindoo. Guidance is general; check current GOV.UK and professional body guidance for your firm.
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