Ask ten small business owners what receipts the IRS requires and you will get ten different answers. Some people save every gas station receipt. Others assume bank statements are good enough. The truth sits somewhere in the middle, and the actual rules are more straightforward than most people think.
This guide breaks down exactly what the IRS expects in plain English — no tax code citations, no jargon. Just the rules you need to follow to protect your deductions.
The $75 rule: when you need a physical receipt
One of the most commonly misunderstood IRS rules involves the $75 threshold. Here is how it actually works:
For most expense categories, the IRS does not require a physical receipt for individual expenses under $75. You still need to document the expense — a log entry, calendar note, or bank statement notation can suffice — but you do not need the actual receipt from the vendor.
For expenses over $75, you need the receipt itself. This applies to business meals, office supplies, equipment, professional services, and most other deductible expenses.
However, there is one major exception: lodging expenses require a receipt regardless of amount. Even a $40 hotel stay needs a receipt. The IRS treats lodging differently because it wants to see the dates, location, and nightly rate — details that bank statements do not capture.
A practical note: even though you technically do not need receipts under $75, keeping them anyway is smart. Small expenses add up, and having receipts makes it much easier to defend deductions if you are ever questioned.
What every receipt must show
Not all receipts are created equal. The IRS has specific requirements for what a valid receipt must include. To be considered adequate documentation, a receipt should show:
- The amount paid: The total cost of the purchase, including tax and tips where applicable.
- The date of the expense: When the transaction occurred, not when the credit card was charged.
- The vendor or payee: Who you paid. A business name and address is ideal.
- A description of the purchase: What you bought or what service you received. "Office supplies" is fine for a receipt from a supply store, but a vague charge at a department store might need a more detailed note.
- The business purpose: Why this expense was necessary for your business. This is often the piece people forget, and it is also the piece the IRS cares about most during an audit.
The receipt itself usually covers the first four items. The business purpose is something you add yourself — a quick note on the receipt, a notation in your tracking system, or an entry in your expense log.
Special rules for meals
Business meals have their own set of requirements, and they are stricter than most categories. In addition to the standard receipt information, the IRS wants to know:
- Who attended: The names and business relationships of everyone at the meal. "Lunch with client" is not enough — you need "Lunch with Sarah Chen, prospective client at XYZ Corp."
- The business purpose: What business was discussed. This does not need to be a detailed summary, but "discussed Q2 marketing partnership" is much better than "business lunch."
- The place: The name and location of the restaurant or venue.
These rules apply whether you are deducting 50% of the meal (the current standard for most business meals) or the full amount in certain qualifying situations. Write the attendees and purpose on the receipt right after the meal, while the details are still fresh.
Travel receipts
Business travel documentation requires receipts for transportation (flights, trains, rental cars), lodging (all amounts, as mentioned above), and incidental expenses over $75. You also need to be able to show:
- The dates you left and returned
- The destination
- The business purpose of the trip
- That business was conducted on the majority of travel days
For trips that mix business and personal activities, you can only deduct the portions directly tied to business. Keeping a simple travel log alongside your receipts makes this separation clear if the IRS ever asks.
Charitable donation documentation
Charitable contributions have their own documentation tiers:
- Under $250: A bank record, receipt, or written communication from the charity showing the name, date, and amount.
- $250 or more: You must have a written acknowledgment from the organization before you file your return. A canceled check alone is not sufficient.
- Non-cash donations over $500: You need to file Form 8283 and describe the property, its condition, and how you determined the fair market value.
- Non-cash donations over $5,000: A qualified appraisal is generally required.
What if you do not have a receipt? The Cohan rule
Lost a receipt? The situation is not automatically hopeless. The Cohan rule, established by a 1930 court case, allows taxpayers to claim deductions even without perfect records — but only if you can provide other credible evidence that the expense occurred.
Under the Cohan rule, you can use secondary evidence like bank statements, credit card records, calendar entries, emails, or written logs to reconstruct the expense. The IRS (or a court) will then estimate a reasonable amount for the deduction.
However, there are important limitations. The Cohan rule does not apply to travel, entertainment, or vehicle expenses — those categories are governed by stricter "adequate records" rules under Section 274 of the tax code that explicitly require contemporaneous documentation. And even where it does apply, the IRS will typically estimate low, meaning you may recover only a fraction of the actual expense.
The takeaway: the Cohan rule is a safety net, not a strategy. It is always better to have the receipt.
Bank statements as backup
Bank and credit card statements are useful supporting documentation, but they rarely qualify as primary evidence on their own. A statement shows the vendor name, date, and amount — but it usually does not show what was purchased or the business purpose.
That said, statements serve an important role as corroborating evidence. If you have a receipt that shows the purchase details, the matching bank statement strengthens your case. And for expenses under $75 where a receipt is not strictly required, a bank statement combined with a contemporaneous log entry can be sufficient.
Digital receipts are perfectly valid
If you are wondering whether the IRS accepts digital records, the answer is a clear yes. The IRS has accepted digital copies since Revenue Procedure 98-25, and modern guidance makes it even more explicit. A photo of a paper receipt, a forwarded email receipt, a PDF from an online purchase — all are valid as long as the image is legible and includes the required information.
In fact, digital records have a practical advantage over paper. Thermal paper receipts — the kind most stores print — fade over time, sometimes becoming unreadable within a year or two. A digital copy made at the time of purchase preserves the information permanently.
This is where a system like SendToBooks pays for itself. When you text a photo of a receipt or forward an email receipt, the information is captured digitally, categorized, and stored in a format that is ready for your accountant or an audit. No fading, no shoeboxes, no frantic searching.
Building a system that actually works
Knowing the rules is only half the battle. The other half is building a system that captures receipts consistently, without turning it into a chore. The most effective approaches share a few traits:
- Capture at the point of purchase. The longer you wait, the more likely a receipt gets lost or forgotten.
- Add the business purpose immediately. This is the detail most people skip, and it is the one the IRS cares about most.
- Use one central system. Splitting records across apps, folders, envelopes, and email accounts is a recipe for gaps.
- Make it automatic where possible. Email receipts that route themselves to your tracking system require zero effort after the initial setup.
The IRS does not care how sophisticated your system is. They care that you can produce the right documentation when asked. A simple, consistent approach beats a complex one you only use half the time.
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