Naming and Filing So You Can Find Anything in Under a Minute
One rule, and it fits in a line:
YYYY-MM-DD, what it is, who it involves, how much.
2026-10-29_invoice_greenhouse-studio_1240.pdf
That file will sort itself into the right place in any folder, on any device, forever, and you will find it by scrolling rather than by remembering what you called it.
That is the whole system. The rest of this post is why each part is there, and the version where you stop filing altogether.
The Money Mastery System categorization screen with a receipt attached to a transaction. Example data.
The short version
One naming rule: the date as YYYY-MM-DD, what it is, who it involves, how much.
A date written year first sorts itself into order.
Attach a receipt to its transaction and it never needs a folder.
Rename forward from today. Go back only for what you are asked for.
Why each part earns its place
The part | Why | What goes wrong without it |
|---|---|---|
2026-10-29 | Date first means the folder sorts chronologically by itself | Oct 29 and 29-10 and 10/29/26 never sort together |
Year first, then month, then day | The only order that sorts correctly as text | 29-10-2026 sorts by day, so every 29th of every year sits together |
invoice | One word for the kind of thing | "doc", "scan", "final" and "FINAL2" tell you nothing in March |
greenhouse-studio | Who it involves | You remember the client long after you have forgotten the date |
1240 | The amount, no symbol, no comma | Lets you match a document to a bank line in seconds |
Hyphens inside, underscores between | Readable, and safe on every system | Spaces break links and some systems mangle them |
The rules under the rule
Lower case, always. Some systems care about capitals and some do not, and the ones that care will sort "Invoice" away from "invoice".
No spaces. Hyphens inside a name, underscores between the parts.
Never "final". It will not be. Use the date; the newest one is the final one.
Same words every time. "invoice", not "inv" on Tuesday and "bill" on Friday. A convention you vary is a convention you do not have.
Fewer folders than you think. A year folder and a handful of kinds. Deep folder trees are where documents go to be lost politely.
The version where you do not file at all
Here is the honest thing about everything above: it is a good system for documents that have nowhere better to live.
Most of what you are filing is a receipt or an invoice, and a receipt's natural home is not a folder. It is the transaction it belongs to.
In the Money Mastery System the receipt attaches to the row. You photograph it, it hangs on that transaction, and it sits there with the category, the business or personal label and the split already on it. There is nothing to name, nothing to sort, and nothing to find, because it was never separated from the thing it explains.
That is Rise, at $49.99 a month, and it is the part of the product that replaces this entire post for the documents that matter most. Receipts: what to keep, how long and where has the retention periods.
La Soglia, the free membership, is free with no bank connection and no card, and holds what you own and what you owe. It does not attach receipts.
Keep the naming rule for contracts, registrations, insurance and anything else that is genuinely a document rather than a transaction. That is what it is good at.
A transaction row with its receipt, category and split visible together. Example data.
Renaming what you already have
Do not. Not all of it.
Start the convention today, going forward. Then rename only what you actually reach for: this year's invoices, current contracts, anything to do with an open matter.
A weekend spent renaming four years of files is a weekend spent on documents you will never open, and it is the most common way this habit dies before it starts.
Bring it to the Collective
Everybody thinks their filing is the embarrassing one. The Money Mastery Collective discussion feed is open on the free membership, and it turns out almost nobody has a system.
If you only change one thing this week, change how you name the next file you save. One good name is the beginning of a system, and it costs nothing at all.
Questions we hear
What about cloud storage search?
Search finds what you can describe. Sorting finds what you cannot. A good name makes both work, and search alone fails exactly when you are under pressure.
Should the amount really be in the filename?
For anything financial, yes. Matching a document to a bank line is the job you will be doing most often.
What if two files would have the same name?
Add a word, not a number. "-deposit" and "-balance" tell you something. "-2" does not.
Does this work for photos and client work?
The date-first part does. The amount usually is not relevant, so replace it with something you would actually search for.
How should I name business files?
Start with the date as YYYY-MM-DD, then what the document is, who it involves and the amount, so files sort by date and can be found by search.
What is the best way to organize receipts?
Attach each one to the transaction it belongs to. A receipt that lives with its transaction does not need a folder system.
References
This post describes a filing convention of our own. There are no outside figures in it.
Related guides: How to do your own bookkeeping, step by step · Home based business bookkeeping: a one-page checklist · Where does my money go? A simple money tracker.
Start free with La Soglia
La Soglia is the free membership of the Money Mastery System. It gives you the Net Worth Tracker, where everything you own and everything you owe sits in one place, and the Money Mastery Collective. There is no card to enter and no bank connection.
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A note on what this is
This article is educational. The Money Mastery System is an educational tool, not financial software, and nothing here is legal, tax, investment or financial advice. Document retention requirements depend on your entity and your jurisdiction. For guidance on your own circumstances, please speak with a qualified professional who knows them.
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