A receipt system has two jobs: find any receipt in under a minute, and still exist when someone asks for it years later. The IRS does not prescribe a format. Publication 583, Starting a Business and Keeping Records says that, except in a few cases, “the law does not require any specific kind of records,” and that you can choose any system “that clearly shows your income and expenses.”
The same publication gives the shape to start from: keep supporting documents “in an orderly fashion and in a safe place. For instance, organize them by year and type of income or expense.” The system below is that sentence made concrete. Every rule quoted here is US federal (IRS). State rules vary, so check your state separately.
What each receipt has to show
Before you file anything, know what a receipt is for. The IRS page What kind of records should I keep says supporting documents for business expenses “should identify the payee, the amount paid, proof of payment, the date incurred, and include a description of the item purchased or service received that shows the amount was for a business expense.” It also notes that “A combination of supporting documents may be needed to substantiate all elements of the expense.”
Worked example. You buy $86.40 of lumber for a client job. The register slip shows the store, the date, the items and the total. Your card statement shows the payment left your account. Neither says which job it was for, so you write “Kitchen shelves, Ruiz job” on the slip before you scan it. The slip, the statement line and that note together cover every element the IRS lists.
Cash is the gap. Publication 583 says that if you cannot get a receipt for a cash payment, “you should make an adequate explanation in your records at the time of payment.” A one-line note in the same folder, written that day, does the job.
For which receipts are worth keeping in the first place, see which receipts to keep for taxes.
Set it up in one afternoon
1. One container per tax year
Paper: one expanding file or large envelope per year, labeled with the year. Digital: one folder per year. Nothing from 2026 goes in the 2027 folder, even if you file it late. That assumes a calendar tax year; if your business uses a fiscal tax year, which Publication 583 defines as “12 consecutive months ending on the last day of any month except December,” label each container with that year instead.
If you run more than one business, Publication 583 says “you should keep a complete and separate set of records for each business.” That means one set of year folders per business.
2. A short category list
Inside each year, use a handful of categories. If you file Schedule C as a sole proprietor, name the folders after the expense lines in Part II of the 2025 Schedule C (Form 1040), so that at year end each folder total maps to one line. A typical set: Advertising, Car and truck expenses, Contract labor, Insurance (other than health), Legal and professional services, Office expense, Rent or lease, Repairs and maintenance, Supplies, Taxes and licenses, Travel, Meals, Utilities, and Other. Which line a given cost belongs on is covered in the self-employed expense tracking guide.
Add two more folders. Income holds documents that show where money came from; the IRS lists cash register tapes, deposit information, receipt books, invoices and Forms 1099-MISC (Publication 583’s list adds Forms 1099-NEC). Assets holds purchase records for equipment and other property, because those are kept longer (more on that below). If you are not self-employed, name the folders after the deductions or credits you actually claim and skip the rest.
Fewer folders beat more. You should never hesitate over where a receipt goes.
3. A naming rule for digital copies
Name every scan the same way:
YYYY-MM-DD_merchant_amount.pdf
For the lumber above: 2026-03-14_harbor-lumber_86.40.pdf. Files then sort by date on their own, a search for the merchant finds every visit, and the amount lets you match a file to a card statement line without opening it. Two receipts from the same store on the same day get _2 at the end.
Rev. Proc. 97-22, the IRS guidance on electronic records, accepts an index that is “functionally comparable to a reasonable hardcopy filing system,” which is what year folders, category folders and consistent names give you; the iPhone receipt scanner guide covers the rest of what it asks.
4. Decide what happens to paper after scanning
Publication 583 says original paper records “may be destroyed provided that the electronic storage system has been tested to establish that the hard copy books and records are being reproduced in compliance with IRS requirements.” Section 7 of Rev. Proc. 97-22 adds a second condition: procedures “that ensure its continued compliance.” In practice, shred a receipt only if you have tested your scanning setup, the scan passes the reading test (open it and read every number on it), and you keep doing both. If you are unsure, keep the paper.
A faint or crumpled slip that fails the reading test stays in the paper envelope for its year; Rev. Proc. 97-22 lists “retaining hardcopies of books or records that are illegible” among its recommended practices. Scanning is still worth it, because the scan is the copy you search.
5. Set up backups once
Rev. Proc. 97-22 lists “creating back-up copies” and “selecting an off-site storage location” as practices it calls “a business decision that is solely within the discretion of the taxpayer.” The IRS does not set a number. One widely used rule of thumb is three copies on two kinds of storage, with one kept somewhere other than home. For receipts that can be the working folder, an external drive, and a copy in a second place.
Before you retire a phone or computer or stop using an app, export the years you still need into a format you can open without it. Rev. Proc. 97-22 treats records as destroyed once you stop maintaining the hardware and software needed to reproduce them, unless they remain available.
The weekly 10-minute routine
Publication 583 says “it is best to record transactions on a daily basis” and warns that “you may forget expenses when you prepare your tax return unless you record them when they occur.” Daily is the IRS’s suggestion; a fixed weekly slot is the minimum that keeps the pile from turning into a weekend project in April.
Same day each week:
- Empty wallet, bag and car into one tray.
- Scan each paper receipt, then zoom in and check the date and total are readable.
- Rename the file with the naming rule and drop it in its year and category folder.
- Save emailed receipts and invoices as PDF, same name format, same folders.
- Write the business purpose on anything where it is not obvious from the receipt.
- Add a dated note for any cash payment that came without a receipt.
- Put scanned paper in that year’s envelope. Shred a slip only if your scanning setup has been tested and this scan passed the reading test; if unsure, keep it.
Once a month, add a second step: go down your card and bank statements and check that every business charge has a file. Publication 583 also recommends reconciling your checking account to catch errors, and this is the natural time to do both.
Year end, and when a year can retire
At year end, total each category folder and hand the totals, or the folders, to whoever prepares your return. For moving totals into a spreadsheet, see tracking expenses in a spreadsheet.
How long a year must be kept depends on the returns it supports; which receipts to keep for taxes goes through the IRS periods. The Assets folder works differently: the IRS page How long should I keep records? says to keep property records “until the period of limitations expires for the year in which you dispose of the property,” so when you retire an old year, move its Assets folder forward into the current year instead of deleting it.
Four ways to store receipts, compared
| Method | Effort per receipt | Finding one later | Main risk |
|---|---|---|---|
| Paper envelope per year | Lowest: drop it in | Slow: flip through by hand | One copy; loss or damage takes the year with it |
| Spreadsheet plus scans | Highest: type a row and file the image | Fast: sort or filter rows | Typing errors; rows and images drift apart |
| Cloud folder with the naming rule | Medium: rename and move each file | Fast, if names stay consistent | Depends on one account unless backed up elsewhere |
| Receipt app | Low: scan, then check the fields it reads | Fast: search by date, merchant or amount | Records live inside the app; export regularly so you are not tied to it |
Decision rule. If you get a few receipts a month, the paper envelope plus a monthly scan into a named folder is enough. If you get several a week, or you need totals by category during the year, use a cloud folder or an app so the sorting happens as you file. Whichever you pick, apply the naming rule and the backup step to it.
General information, not tax, legal or accounting advice. Rules differ by country and change; check anything you rely on with your tax authority or an accountant.