Collections & selling
How to Organize and Catalogue a Stamp Collection
Updated · 5 min read · By the StampGo team
Quick answer
Sort stamps by country, then by year within each country, and record what you'd miss if the collection vanished: catalogue number, condition, what you paid, the current estimate and where it's kept. A spreadsheet, dedicated software or a collection app all work. Consistency and a backup matter more than the tool.
Key facts
- Default order
- Country, then year of issue. It matches catalogues and albums
- Alternatives
- Topical (by subject), by reign or era, or by postal history
- Record per stamp
- Catalogue number, description, condition, cost, estimate, location
- Tools
- Spreadsheet, collection software, or a phone app that scans and logs
- Duplicates
- Keep in glassines by country. They're trading and club-sale material
- Backup
- Keep a copy of the inventory away from the collection
How should I sort a stamp collection?
By country first, then by year of issue within each country. That's the order catalogues, albums and dealers use, so anything you look up later will match.
Within a year, follow catalogue order rather than inventing your own. If you collect topically, sort by subject and then by country, and keep a note of the catalogue number anyway, because that's the language buyers speak.
- Sorted, unmounted material lives in a stockbook until you decide where it belongs.
- Mounted material goes on album pages, with mounts for unused stamps.
- Duplicates go into glassine envelopes, labelled by country and catalogue number.
- Covers are stored upright in cover boxes or sleeves, never folded.
What should a stamp inventory record?
Enough to identify the stamp and to prove what you had: catalogue number, a short description, condition, what you paid, a current estimate, and where it's stored.
| Field | Example | Why it matters |
|---|---|---|
| Catalogue number | Scott 499 / SG 429 | The unique ID dealers and buyers use |
| Description | US 1917 2¢ Washington, perf 11 | Human-readable, and catches mis-keyed numbers |
| Condition | Used, VF, light cancel | Drives the price more than anything else |
| Cost and date | $4, March 2026 | For your own records and any capital gains question |
| Current estimate | $6–$12 | A range, not a single figure |
| Location | Album 2, page 14 | Finds the stamp again in a big collection |
Add a photo for anything valuable, and record certificate numbers for expertized stamps. See stamp condition grades for consistent condition wording.
Spreadsheet, software or app?
A spreadsheet is free and flexible, dedicated software handles catalogue data and valuations, and a phone app is fastest for capturing stamps as you sort. Many collectors use an app to capture and a spreadsheet as the master record.
| Tool | Strengths | Trade-offs |
|---|---|---|
| Spreadsheet | Free, flexible, easy to back up and share | You type everything, including catalogue numbers |
| Collection software | Built-in catalogue data, reports and valuations | Costs money, and data can be tied to one program |
| Phone app | Scan, identify and log in one step; always with you | Estimates are ranges, not appraisals |
| Paper notebook | No setup, no battery | No backup, and hard to search or total |
What should I do with duplicates?
Keep them sorted in glassine envelopes by country. Duplicates are what you trade at clubs, sell in lots, or use to upgrade when you find a better copy.
Don't throw duplicates away, and don't let them clog your album. When a duplicate is in better condition than the one on your page, swap them and move the weaker copy to the trade pile. Bulk duplicates sell best as country lots. See how to sell stamps.
Why does an inventory matter?
Because it's what insurers, executors and buyers ask for. A collection with a clear list and photographs is quicker to insure, easier to divide fairly and faster to sell at a fair price.
It also protects you from buying the same stamp twice, and it shows which parts of the collection carry the value. For inherited albums, a list is the first thing to build. See inherited a stamp collection and how to value a stamp collection.
How do I tackle a big unsorted accumulation?
In passes. Sort roughly by country first, without stopping to research anything, then by era within each country, and only then look up individual stamps. Trying to do all three at once is why boxes stay unsorted for years.
- Pass one: split everything into country piles, and one pile for “no idea”. Speed matters more than accuracy here.
- Pass two: within each country, split by era or reign, using the monarch, currency or design as the clue.
- Pass three: identify individual stamps, starting with the oldest pile, and set aside anything that looks scarce.
- Pass four: mount the keepers, glassine the duplicates, and record what you've kept.
Work in short sessions with a clear table, good light and tongs. An hour of sorting done properly beats an afternoon of sorting that ends with stamps in a heap because you ran out of patience.
Step by step
How to catalogue a collection with StampGo
Scanning as you sort builds the inventory in the same pass, instead of leaving it as a job for later that never happens.
- 1
Scan each stamp as you sort
Tap Scan Now and photograph the stamp. Work through one country at a time.
- 2
Capture the details
Each result gives you the issue, country, year and a reference price range to record.
- 3
Add it to your collection
Saved stamps build a list you can search, with a running total value across everything you've logged.
- 4
Check totals and history
The home screen shows the number of stamps and total estimated value, and the History tab keeps every scan.
Free to download on iOS and Android
Frequently asked questions
What should I put in a stamp collection spreadsheet?
One row per stamp with catalogue number, description, condition, cost, date acquired, current estimate and location. Add columns for certificate numbers and photographs for valuable items.
How do I record condition consistently?
Use the standard terms: MNH, MH or used for gum state, and a centering grade such as VF or F. Writing “nice copy” tells you nothing in five years' time.
Should I organize by country or by topic?
By country if you want your collection to match catalogues and sell easily. By topic if you collect for pleasure and want pages that look good. Either way, record catalogue numbers.
How often should I update my inventory?
Each time you add or remove stamps, and review estimates once a year. Keep a backup copy separate from the collection itself.
Should I number my album pages?
Yes, once the collection runs to more than one album. Page numbers give every stamp an address, which is what turns an inventory into something you can actually search, and makes insurance and estate records far easier to follow.
