First: slow down and secure everything
The most expensive mistakes heirs make all happen in the first two weeks: selling fast to a single buyer, cracking cards out of their cases, or "tidying up" in ways that destroy value. So before anything else — don’t sell, don’t clean, don’t crack. Cards sealed in hard plastic holders with a grade on the label (collectors call them slabs) are worth the most exactly as they are. Raw cards should be handled by the edges and left as found.
Gather everything into one safe, dry place — cards, binders, boxes, and any paperwork that came with them. Receipts, auction invoices, old insurance schedules, and submission forms are provenance, and provenance is money. Then photograph everything where it sits. Ten minutes with a phone camera gives you a record that matters for the estate, for insurance, and for keeping honest everyone who touches the collection after you.
Identify what you have — the slabs make it easy
Graded cards are the easy part, and they’re usually where the value is. Every slab from PSA, BGS, SGC, or CGC has a certification number printed on its label. That number identifies the exact card and grade in the grader’s public database — which means a stack of slabs can be identified and valued one by one, with certainty, by anyone. You don’t need to know what a 1986 Fleer Jordan is; the cert number does.
Raw (ungraded) cards need triage, not a full inventory. The blunt truth: most raw modern cards are worth very little in bulk. Look for the signals that a card was treated as special — stored alone in a hard case or top-loader, star players and rookie cards, older cards (especially pre-1980), and anything the collector kept separate from the boxes. Those go in the "look up individually" pile; the rest can wait.
Get the real number — from sold prices, not offers
A card is worth what the same card, in the same grade, actually sells for — not what similar cards are listed for, and not what the first dealer who looks at it offers. Asking prices run high; dealer cash offers run low. Dealers who buy collections outright typically pay somewhere between 40% and 70% of resale value — that’s not a scam, it’s their margin for taking on the work and risk. But it means the single most profitable thing an heir can do is know the real number before hearing anyone’s offer.
For every slab, look up recent sold comparables at that exact grade. Grade changes everything: the same card can be worth several times more one grade higher, so "a Charizard like this sold for $20,000" means nothing without the grade matching. Once the significant cards are valued, you’ll know which conversation you’re in — estate paperwork for a few thousand dollars, or professional appraisal and auction houses for six figures.
Document it for the estate — before you decide anything
Whatever you eventually do — keep, sell, or divide — the estate needs a dated, itemized valuation first. A written schedule of each significant card with its grade, certification number, and current market value protects every heir: it’s the basis for dividing fairly, for the estate’s records, and potentially for taxes, since inherited property is generally valued as of the date of death. Talk to the estate’s attorney or accountant about what your situation requires — that part is their job, but they’ll ask you for the schedule, and now you can produce one.
The same document is what an insurer needs. A collection sitting in a house while the estate settles — often for months — is usually covered by nothing but a homeowners policy that caps collectibles at a tiny fraction of their value. If the number you found is meaningful, getting it scheduled on a policy is cheap and fast, and it’s the step almost every heir skips.
Keep, sell, or split — the honest options
Keeping the collection means insuring and storing it properly — cool, dry, dark, and scheduled on a policy. If it meant something to the person who built it, there’s no rule that says you must convert it to cash on any timeline.
Selling well depends on what you have. High-value vintage and iconic cards do best at established auction houses, which take a commission but reach the buyers who pay real prices. Mid-range slabs sell fine on major marketplaces if you’re willing to do the work. Selling everything to one dealer is the fastest and lowest-yield path — sometimes that trade is worth it, but make it knowingly, with your own valuation in hand.
Splitting between heirs is where the documented schedule earns its keep: with every card valued, you can divide by value rather than by box count, and nobody has to wonder years later whether they got the short end.
