How to value a trading card using sold prices
A seller's asking price shows what they want, not what a buyer paid. Start with completed sales of cards that match yours closely.
Identify the card first
Write down its game or sport, set, card number, year, language and print variant. Separate raw cards from graded cards. For graded examples, match the grading company and numerical grade. Condition differences can outweigh a small difference in sale date.
Build comparable evidence
- Use recent completed single-card sales. Avoid bundles unless the value of each item is clear.
- Check whether a displayed price is an actual accepted offer. eBay Product Research can expose accepted Best Offer prices.
- Record sale date, currency, shipping treatment and condition. Use a consistent currency and total-cost basis.
- Keep the evidence URLs so someone else can understand the estimate.
Calculate a range, not a promise
Illustrative matching sales of £40, £50, £52, £55 and £110 have a £52 median and a £40–£110 range. The £110 result deserves closer inspection; it is not automatically an error. Check whether it has a different variant, provenance or condition before excluding it.
Use the free CardLedger calculator with your own comparisons. Deduct marketplace fees, postage and packing to estimate proceeds. Thin trading history or a condition mismatch makes the estimate less reliable. This is a research estimate, not an authenticated appraisal or guaranteed sale price.
Sources
Worked example: value after selling fees
Imagine five comparable completed sales of the same card and condition: £45, £48, £50, £52 and £55. The middle value is £50. This example does not represent a live valuation.
Assume a selling fee of 12% plus a fixed 30p, £3 postage paid by you and £1 packaging. Your illustrative net proceeds are £50 − £6 − £0.30 − £3 − £1 = £39.70. If you originally paid £35, the difference is £4.70 before any other costs or tax. Use your actual marketplace fee schedule; the example rate is an assumption.
Check each comparison
- Match the set, card number, language, print variant and condition.
- For graded cards, match both the grading company and the grade.
- Use completed single-card sales, not unsold asking prices or mixed bundles.
- Keep postage treatment and currency consistent across comparisons.
- Record the sold date and source URL, and explain why you excluded unusual results.
Why the result is a range
A median reduces the effect of one extreme comparison but does not correct for the wrong variant or too few sales. A £45–£55 example range communicates uncertainty better than claiming a guaranteed £50 sale. Recheck the evidence before listing and account for the possibility that the card will not sell.
Method example updated 9 October 2026. Use the free valuation calculator · Explore Tradescore Labs