Should I file receipts by year or by vendor?

By year and month, with the vendor as a tag or in the file name. Financial documents are retrieved by time — for a return, a quarter, an audit — so a time-based spine matches how you actually look for them, while a vendor tag still lets you gather one supplier across all months.

How deep should the folders go?

Two levels: year, then month. Deeper trees (quarter, type, paid/unpaid) add a decision every time you file and are the main reason systems get abandoned. Shallow and predictable beats clever.

How do I keep the system from falling apart?

A fixed ten-minute pass once a month, on a date you’ll remember, handling only that month’s files. Frequency keeps every pass small. And never make a “sort later” folder — it always becomes permanent.

What naming convention works best?

Start the name with the date in year-month-day form (2026-07-14_...). Date-first names sort chronologically on their own, and adding the vendor makes them searchable across every month.

Can this run automatically instead?

Yes — and it keeps the same structure. A rule can recognize invoices and receipts as they arrive, tag the vendor, and file them into your year/month folders, even reading the text inside a badly named PDF to know what it is. You preview before anything moves and can undo any run. Available now on the Microsoft Store.

A filing system for invoices you maintain in 10 min

You didn’t search for an app. You searched for how to file invoices and receipts — a method, a system, something you can actually keep up. That’s the right instinct, because the reason most people’s financial paperwork is a mess isn’t a missing tool; it’s the absence of a simple rule for where each document goes and a small habit for keeping it that way. This is that system. It’s deliberately boring, it survives tax season, and once it’s running it costs about ten minutes a month.

The one decision that shapes everything: year/month or vendor?#

Every filing system rests on a single choice — what the top level of folders is organized by. For invoices and receipts there are two tempting answers, and picking wrong is why so many systems quietly collapse.

Organize by vendor (a folder for Amazon, one for your landlord, one for each supplier) feels tidy, but it fails the way you actually retrieve financial documents. When the accountant asks for “everything from the third quarter,” or you’re reconstructing a year for a return, you’re searching by time, not by company — and a vendor-first tree makes you open thirty folders to gather one quarter.

Organize by year and month matches how the paperwork is really used: taxes, reconciliations and audits are all time-bound. A 2026 → 07 folder holds July at a glance, and next year’s July sits in its own place instead of piling onto this one. This is the spine we recommend.

So where does the vendor go? Not into the folder tree — onto the document as a tag or a label in the file name. That way “show me everything from that supplier” is a search across your time-based folders, and you get the best of both without maintaining two parallel trees. One spine (time), one label (vendor).

Do

Make year → month the folder spine
Record the vendor as a tag or in the file name, not as a folder
Keep the tree shallow — two levels is enough
Start file names with the date, so they sort themselves

Avoid

A folder per vendor as your main structure
Deep nesting like Year/Quarter/Vendor/Type
Renaming everything by hand every time
A "to file later" folder that becomes permanent

The structure, concretely#

Keep it shallow and predictable. A single home for financial documents, split by year and then month:

Documents\Finances\2026\07 — July 2026’s invoices, receipts and statements together.
File names that start with the date: 2026-07-14_supplier_invoice.pdf. Date-first names sort into chronological order on their own, no matter how the folder is viewed.
The vendor lives in that name (or as a tag), so a search for the supplier crosses every month at once.

That’s the whole architecture. Two levels deep, one naming rule. Resist the urge to add Quarter, Type, or Paid/Unpaid subfolders — each layer you add is another decision you have to make every single time you file something, and decisions are what kill habits. If you want the deeper reasoning on why shallow, time-based trees outlast clever ones, we wrote it up in the folder structure that scales.

The ten-minute monthly habit#

A structure is only half of it. The other half is a rhythm — a tiny, repeatable review so nothing rots in Downloads. Once a month, on a date you’ll remember (say, the first, with your coffee), you do this:

Gather the month's filesName each date-firstTag the vendorDrop into Year/MonthEmpty the inbox

Ten minutes, because you’re only ever handling one month’s worth, and because the documents you filed last month aren’t in the way. The magic isn’t effort; it’s frequency. A pile you touch monthly is always small. A pile you touch yearly is a lost weekend every April. The habit is the system — the folders just hold still while you keep it.

The one rule that protects the habit: never create a “sort later” folder. It’s where good intentions go to die. Either a document gets filed in the monthly pass, or it waits in Downloads until the next one — but it never gets its own permanent limbo.

Let the computer do the upkeep#

Here’s the honest upgrade. A ten-minute habit is sustainable, but the most sustainable habit is the one you don’t have to remember at all. This is exactly the boring, repetitive work a computer should own — and it’s where Elegant File Explorer fits into the method above without changing it.

The idea is maintenance, not replacement: you keep the same year/month spine and the same vendor tag, and a rule simply does the monthly pass for you the moment a document lands. Point a rule at Downloads, have it recognize incoming invoices and receipts, apply the vendor tag, and move them into Finances\{year}\{month} — the exact structure above, now filling itself. The full, step-by-step build — including recipes that read the text inside a badly named PDF (with built-in text recognition that runs 100% on your PC) so a download (12).pdf still lands in the right month — is in automatically organize invoices and receipts. For the wider world of household paper — bills, manuals, IDs — the same approach is in organize household documents automatically, and for filing a whole tax year by country, organize tax documents by year.

Whether you keep the ten-minute habit or hand it to a rule, the method is identical — and that’s the point. The system is the year/month spine and the vendor tag. The automation is just a tireless version of you doing the monthly pass. Nothing is ever deleted, every run can be previewed and undone, and it all stays on your PC.