Estate Planning · 2026
What Happens to Your CIS Tax Refund When You Die?
Nobody wants to think about this. But thousands of pounds in CIS overpayments are lost every year because subcontractors die without a Will, without clear records, and without telling anyone where to find their UTR. Here is what your family needs — and what you need to prepare today.
This is not a topic anyone enjoys reading. But it is one of the most practically important articles on this blog — because the consequences of not reading it fall not on you, but on the people you leave behind. A bricklayer with £6,800 in unclaimed CIS refunds, a clear Will, and one document folder left his family in a manageable position. Without those three things, the same money can take years to recover — or disappear entirely.
What HMRC Does — and Does Not Do — When You Die
HMRC does not proactively contact your family. When notified of a death, HMRC freezes the tax account. Any outstanding CIS refund — money you overpaid through deductions throughout the year — becomes part of your estate. It sits there, frozen, until someone with the legal authority to claim it comes forward with the right documents.
If nobody knows your UTR number, nobody knows you had an accountant, or nobody can access your tax records — that money can remain frozen indefinitely. HMRC will not search for your beneficiaries. The burden of recovery falls entirely on your family.
HMRC will not chase your family to give them money. Your family must chase HMRC — with the right documents, at the right time, through the right legal process. Without preparation, that process is long, expensive, and sometimes impossible.
CIS Tax Insights, 2026The Legal Process Your Family Must Follow
Recovering a CIS refund after death is not automatic. Your executor or next of kin must work through a specific process — and without the right preparation in place, each step can take months.
With Preparation vs Without: The Real Difference
Simple Will in place — named executor knew what to do
Wife knew his UTR number and where tax records were kept
Accountant was authorised to speak with family
CIS deduction statements were filed and accessible
Result: £6,800 released to family in 7 months
No Will — family must apply for Letters of Administration first
UTR unknown — family cannot access Government Gateway
Accountant cannot speak to family without authorisation
No CIS statements — refund amount cannot be established
Result: 18–36 months wait — or refund never recovered
If your estate is large enough — currently above £325,000 — the CIS refund forms part of the taxable estate and may be subject to Inheritance Tax at 40%. This is another reason why having a Will and professional estate planning in place matters, particularly for subcontractors who also own property or have significant savings.
Sole Trader vs Limited Company: Different Rules Apply
- The CIS refund is your personal asset — it belongs to you, not a business
- It forms part of your personal estate on death
- Distributed according to your Will (or intestacy rules without one)
- May be subject to Inheritance Tax if estate exceeds threshold
- Executor handles recovery through standard probate process
- The CIS refund belongs to the company — not to you personally
- Your family cannot access company funds without legal authority
- A new director must be appointed to manage the company
- The company must eventually be formally wound up
- Professional legal and accounting advice is essential — this is complex
The One Hour That Could Save Your Family Months
You do not need a solicitor, a financial adviser, or an afternoon. You need one hour and one folder. The contents of that folder are the difference between a family that recovers what they are owed in seven months and one that spends three years fighting for it.
Practical Checklist: What to Do This Week
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Make or Update Your Will — and Name the Right Executor A Will is the single most important document in this process. Without it, your family must apply for Letters of Administration before they can do anything — adding months to the process and removing your ability to specify who handles your affairs. Your executor should ideally be someone who understands your business, or who is willing to instruct a professional to help them.
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Create the Tax Folder and Tell Someone Where It Is Assemble the documents listed above into a physical folder or a clearly labelled digital folder in a location your family can access. Tell your partner, your executor, or your closest family member where it is. A folder nobody can find is the same as no folder at all.
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Authorise Your Accountant to Speak With Your Family HMRC and accountants are bound by strict confidentiality rules. Without formal authorisation, your accountant cannot speak to your family about your tax affairs — even to help them recover money owed to your estate. Ask your accountant what authorisation they need and put it in place now, while it is straightforward to do.
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Keep Your CIS Records Organised and Up to Date The final Self Assessment that establishes your CIS refund amount depends on your records being accurate and accessible. If your CIS deduction statements are scattered across emails, text messages, and a drawer somewhere, the person trying to file your final return will struggle. An annual records review — keeping statements filed by contractor and tax year — costs almost no time and makes a significant difference.
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Review This Every Year — Especially If Circumstances Change A Will made when you were single with no assets is not appropriate for a married homeowner with children. A tax folder compiled three years ago may have an out-of-date UTR or an accountant who has since retired. Set a calendar reminder to review both documents once a year — ideally at the same time as your annual accounts review.
One Conversation You Should Have Today
Tell your partner, your adult child, or whoever is most likely to handle your affairs where your tax documents are. Say the words: "If something happens to me, you need to find the folder in [location]. It has my UTR number, my accountant's details, and my recent CIS statements. That's what you'll need to claim anything HMRC owes."
It is not a pleasant conversation. It takes about ninety seconds. And it is the difference between a family that recovers what they are owed in months and one that spends years trying to navigate a process nobody explained to them.
Don't let HMRC keep money that belongs to your loved ones. The preparation takes one hour. The alternative can take years.
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Keep Your CIS Records Clean and Accessible.
Clean, organised records are the foundation of everything — from your annual refund to your family's ability to recover what you are owed.
This article is for informational purposes only and does not constitute professional legal, tax, or estate planning advice. Always consult a qualified solicitor for Will preparation and a qualified accountant for tax estate matters. Based on 2026 HMRC and UK probate guidance.