Tax disputes
HMRC disputes made simple
Independent support that helps you understand your HMRC letter, explain what it means, and guide you through the right next steps.
- Free initial assessment
- Fast, specialist advice
- Typical response in two working days
How dispute support works
Share your HMRC letter
Upload the details in our secure form so we can see exactly what HMRC is asking.
We break it down
A specialist explains what it means, what HMRC wants, and what your options are.
We handle the response
We prepare and send the right reply to HMRC, and keep you updated at every step.
Built for real-world HMRC disputes
From first letter to final resolution, Taxbax makes dealing with HMRC clear and manageable. Clean guidance, quick decisions, and ongoing support.
Check your caseAbout our support service
Getting a letter from HMRC can be stressful, especially when you’re not sure what it means or what they expect from you. Our dispute support service is designed to make the process simple, calm and easy to understand. We explain your situation in plain English and help you take the right next step without the stress.
How our service helps
Once you get in touch, we review your HMRC letter, explain what the issue is, and outline your options. You’ll understand whether the problem is routine, urgent or incorrect, and what HMRC is actually asking for. If you need help responding, gathering evidence or challenging a decision, we can handle that too.
Making sense of your HMRC letter
Most people come to us because they’re unsure if their letter is serious or if HMRC has made a mistake. Whether it’s a compliance check, an underpayment demand, a penalty notice or a sudden tax code change, we help you understand what’s behind it and what to do next. Our goal is to replace worry with clarity.
When to reach out
If HMRC has contacted you and you’re not confident about how to respond, that’s the right time to speak to us. Many clients reach out before calling HMRC so they know exactly what to say and what to avoid. Early clarity can make a big difference to the outcome.
Real situations we deal with
You might have received a compliance letter you don’t understand, a penalty that doesn’t seem fair, or an underpayment demand that feels wrong. You may simply want someone to check your tax code or explain why HMRC has contacted you. Whatever the situation, we help you make sense of it and guide you toward a fair resolution.
Ready to take the next step?
If you’re unsure what your HMRC letter means or how to respond, we’re here to help. Send us your details and a Taxbax specialist will be in touch shortly with clear, friendly guidance on what to do next. Your details are kept secure and confidential.
Our simple mission
Disputes shouldn’t be a source of stress
Our mission is to simplify tax disputes and make the process as clear and stress free as possible. With years of experience handling HMRC checks, penalties and letters, we give our clients the strongest chance of a fair outcome.
Frequently asked questions
What should I do if I receive a letter from HMRC?
If you receive a letter from HMRC, the most important step is to read it carefully and understand what they’re asking for. If anything is unclear, Taxbax can review the letter, explain what it means, and guide you through the right next steps.
Can Taxbax help with HMRC compliance checks?
Yes. We review what HMRC has asked for, explain which parts of your tax affairs are being checked, help you gather the right evidence and prepare the response on your behalf.
How do I challenge an HMRC penalty or underpayment?
Start by working out why it was issued and whether the figures are right. We look at the letter, check the calculation and set out your options — which may be an appeal, a reasonable excuse, or simply correcting the information HMRC holds. Letters carry deadlines, so it is worth getting in touch as soon as one arrives.
Do I need to speak to HMRC directly?
Not usually. We can deal with HMRC on your behalf as your tax agent. Many clients come to us before calling HMRC so they know exactly what to say. You are always free to contact HMRC yourself.
Is Taxbax affiliated with HMRC?
No. Taxbax Limited acts as a tax agent and is independent of HMRC. For tax refund requests and advice, you can contact HMRC directly.
Get help today
Tell us what’s going on and we’ll review it and get back to you quickly with our next steps.
Get help todayTypical response in two working days · Secure and confidential