A large collection left undocumented is often sold for a fraction of its worth by people who do not know what it is. An afternoon of paperwork prevents that.
Key takeaways
- Leave an inventory, a valuation basis and clear instructions alongside your will.
- Name someone who understands the hobby, or name a shop or auction house to advise your executor.
- Collections form part of an estate and may need valuing for probate and Inheritance Tax purposes.
- Keep the physical location, keys and access details recorded where your executor will find them.
- Get proper legal and tax advice for anything substantial. This article is general information only.
The most common way a valuable collection loses its value is not theft or damp — it is being inherited by someone who thinks it is a box of children's cards. Everything below exists to prevent that.
Documents to leave
- The inventory: every card with set, number, printing, condition or grade, and a dated working value.
- A short plain-English note explaining what the collection is, roughly what it is worth, and what not to do with it.
- Where everything physically is, including safes, keys and any items held elsewhere.
- Purchase records and grading certificates, or where to find them digitally.
- The names of two or three trustworthy routes to sell — a shop, an auction house, a marketplace — with contact details.
Wills and executors
GOV.UK sets out how to make a will and the role of an executor. Deal with the collection explicitly: either leave it to a named person, or instruct that it be sold and the proceeds distributed. Vagueness leads to disputes and to rushed sales. If your executor is not a collector, say in writing who should be asked for help.
Valuation for an estate
- Assets in an estate generally need valuing as at the date of death, and GOV.UK explains how estates are valued for probate.
- For a large collection that usually means a professional valuation rather than a family estimate.
- A well-kept inventory with dated values makes that valuation faster and cheaper.
- Inheritance Tax may apply to the estate as a whole; the current rules and thresholds are on GOV.UK.
The practical instruction sheet
- Do not remove cards from sleeves, holders or grading cases.
- Do not clean, press or repair anything.
- Do not sell in a hurry, and do not accept the first offer for the whole lot.
- Get the inventory and the top-tier cards valued before anything is sold.
- Sell the high-value items individually or at auction, and bulk separately at bulk rates.
If it helps, name us in your notes: we will value a documented collection card by card against tracked market data.
A named route to sell →Common questions
- How do I leave a Pokémon card collection in my will?
- Deal with it explicitly — leave it to a named person or instruct that it be sold and the proceeds shared — and store an inventory, valuation basis, location details and suggested selling routes alongside the will.
- Is a card collection part of an estate?
- Yes. Collections are assets and generally need valuing as part of the estate for probate, with Inheritance Tax applying to the estate under the current GOV.UK rules.
- Who values an inherited collection?
- For anything substantial, a professional valuer, auction house or specialist dealer rather than a family estimate. A dated inventory left by the collector makes this far quicker and cheaper.
- What should my family avoid doing with my cards?
- Removing cards from holders or grading cases, cleaning or pressing anything, and selling the whole collection quickly to the first buyer. Leave those instructions in writing.
A video version of this guide is planned for the DeuxyDex channel.
Sources
- [1] GOV.UK: making a will
- [2] GOV.UK: valuing the estate of someone who has died
- [3] GOV.UK: Inheritance Tax
Prices, pull rates and set details change. Where we could not verify a claim, we left it out.