HMRC Self Assessment Specialists · Secure · GDPR-compliant

Let's get your Self Assessment reviewed.

A few quick details and we'll start a no-obligation review of your HMRC position to see whether you're owed a rebate. Most clients take under five minutes to complete this form.

Takes ~4 minutes

Encrypted submission

No upfront fee

About you

Your contact details so we know who we're talking to and how to reach you.

Full legal name *

Please enter your full name.

Mobile number *

Please enter a valid mobile number.

Email address *

Please enter a valid email address.

Home address *

Please enter your full address including postcode.

Your tax identifiers

Two numbers HMRC uses to identify you. You'll find your UTR on any letter from HMRC, and your NI Number on your payslip or NI card.

UTR (Unique Taxpayer Reference) *

10 digits — usually on HMRC letters labelled "Tax Reference".

UTR must be exactly 10 digits.

National Insurance Number *

Two letters, six digits, one letter — like AB123456C.

Please enter a valid NI Number (e.g. AB123456C).

HMRC Government Gateway access

To review your tax position we need temporary access to your HMRC Government Gateway account. Your credentials are encrypted in transit and only used by our review team.

Why we need this: Logging into your Gateway lets us see your Self Assessment history, CIS deductions, and any prior claims — so we can tell you exactly what you might be owed before you commit to anything.

We never make changes without your written permission.
You can revoke our access at any time by updating your Gateway password.
Credentials are stored in our secure UK-hosted system, accessible only to assigned staff.

Gateway User ID

Please enter your Gateway User ID.

Gateway Password

The password you use to log into the Government Gateway.

Please enter your Gateway password.

Do you agree to share your Gateway login with our review team? *

Yes — please review my tax position No — I'll provide access another way

Please choose one option to continue.

Consent & declaration

By ticking the box below you give Maximum Rebate permission to act on your behalf in reviewing your HMRC Self Assessment position.

You'll need to tick the consent box to submit.

Thank you — we've got it.

Your details are with our review team. We'll be in touch within one working day to confirm next steps and let you know what we find.

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