$75 Receipt Rule: Why Physicians Should Keep Receipts

4 days ago
6 min read

You've probably heard the rumor floating around: "You don't need to keep receipts for anything under $75." It sounds great. It sounds like one less administrative headache in a schedule already packed with patient care and charting.

Unfortunately, it's also a trap.

While there's a grain of truth to the rule, the practical application is much stickier than the internet suggests. Relying on this exception without understanding the fine print is a fast way to hand the IRS an easy win during an audit.

The Burden of Proof is on You

To understand why receipts matter, we need to look at the cornerstone of business tax law: IRC § 162.

This code section allows you to deduct expenses that are "ordinary and necessary" for your business. The phrase sounds vague because it is, courts have interpreted it broadly to mean expenses that are common in your field and helpful to your practice. For physicians, this could include anything from CME conferences to office supplies to that standing desk you bought for your home office.

However, IRC § 162 comes with a critical catch: the burden of proof falls entirely on you. The IRS doesn't have to prove an expense wasn't business-related; you must prove that it was. This is the opposite of criminal law where the government bears the burden. In tax law, you're guilty until proven innocent.

However, congress realized long ago that certain categories of expenses are particularly easy to abuse. Anyone can claim they had a "business lunch" or took a "business trip" without much accountability. As a result, they created IRC § 274(d), which sets a much higher bar for documentation on specific expense categories:

Travel (flights, hotels, rental cars)
Meals (business lunches, dinners, conference catering)
Gifts (client gifts, referral appreciation)
Vehicles (mileage, car expenses)
Listed property (computers, phones used for business)

For these categories, a credit card statement is rarely enough. The law requires you to substantiate the expense with "adequate records."

The Myth of the $75 Receipt Rule

So where does the $75 rule come from?

The Treasury regulations (specifically Reg. § 1.274-5T(c)(2)(iii)) states that for expenses under $75, you are not strictly required to have documentary evidence (the physical receipt). This threshold hasn't been adjusted for inflation since it was set decades ago, which is why $75 feels arbitrary today.

However, this exception does not waive the record-keeping requirement. It only waives the receipt itself.

If you toss the receipt, the law still requires you to maintain a "contemporaneous log." This means a written record, created at or near the time of the expense, containing the exact same details the receipt would have shown.

It must include:

Amount: The exact cost (not an estimate)
Time and Place: Date and location of the transaction
Business Purpose: Why this expense was necessary for your practice
Business Relationship: Who you were with (for meals and entertainment)

Here's the trade-off: You can skip keeping the slip of paper, but only if you replace it with a manual data-entry habit that's arguably more annoying than just snapping a photo of the receipt.

Real-World Consequences: When the "No Receipt" Approach Fails

When taxpayers rely on the $75 rule without maintaining a perfect log, the Tax Court is rarely sympathetic. Here are real cases that illustrate what happens when documentation falls short:

The "Estimator": In Perfetti v. Commissioner (T.C. Memo. 1998-322), a commercial pilot attempted to deduct meal expenses using a log that contained dates and meal types (breakfast, lunch, dinner) but used estimates instead of exact amounts. The court denied the deductions entirely. The exception waives the receipt, not the requirement for exact substantiation. Close enough doesn't count.

The "Gig Worker": In Ibeh v. Commissioner (T.C. Memo. 2020-74), an Uber driver kept records of vehicle expenses but couldn't provide receipts or contemporaneous logs for amounts under $75. The court disallowed thousands of dollars in deductions because bank statements alone weren't sufficient under IRC § 274(d).

The "Purpose-Less": In O'Donnell v. Commissioner (T.C. Memo. 1999-212), the taxpayer had a detailed diary of meals but failed to record the business purpose or the attendees. The court disallowed the deductions. Without the "why" and "who," it looks personal.

The pattern is clear: if your documentation has holes, the IRS assumes the expense is personal and non-deductible. The Tax Court doesn't award partial credit. It's typically all or nothing.

The Cohan Rule: A Safety Net, Not a Standard Practice

You may have heard of the "Cohan Rule" from Cohan v. Commissioner (39 F.2d 540 (2d Cir. 1930)), which allows courts to estimate expenses if there's credible evidence that money was spent for business purposes.

It's a last resort: Relying on the Cohan Rule means you're already in court, which means you've already lost time, money, and peace of mind fighting an audit. Even if you win, you're playing defense when you could have been playing offense.

It has strict limits: The Cohan Rule generally does not apply to the categories of IRC § 274(d) (meals, travel, vehicles). Congress deliberately closed this loophole for these expense types. You can't estimate your way out of missing meal receipts.

It's unpredictable: Even when the Cohan Rule applies, the court has wide discretion in how much to allow. You might have spent $10,000, but if your documentation is weak, the court might only estimate $3,000.

What Your Tax Team Recommends

1. Ignore the $75 Threshold

Treat every business expense as if it requires a receipt. It's safer, simpler, and eliminates the mental fatigue of deciding "Do I need to keep this one?" at the register. The cognitive load of constantly evaluating whether an expense is $74 or $76 is exhausting and error-prone. Just photograph everything and move on with your day.

2. Leverage Technology

We live in a tech-forward world. Stop stuffing thermal paper into your glovebox where it will fade into a white strip of nothingness within six months.

Modern solutions make this painless:

Use an app that syncs with your bookkeeping: There are many apps that allow you to snap a photo and categorize the expense in seconds.
Add context immediately: Jot the business purpose and attendees in the notes field while it's fresh in your mind. "Lunch with Dr. Smith re: partnership terms" takes five seconds to type.
Let automation do the work: Once the digital copy is synced and tagged, you're generally audit-proof for that transaction. No paper filing required.

The best system is the one you'll actually use. Find an app that integrates with your workflow and stick with it.

3. Focus on "Business Purpose"

The most common mistake physicians make isn't losing the receipt, it's forgetting to document why the expense mattered.

"Lunch" is not a business purpose.

"Lunch with Dr. Smith to discuss anesthesia coverage agreement" is a business purpose. It's specific, defensible, and audit-proof.

For every deductible expense, ask yourself: Could I explain this to an IRS agent in one sentence? If not, add more detail to your log.

4. Separate Personal and Business

If you're using the same credit card for personal Starbucks runs and business lunches with referring physicians, you're creating documentation chaos (and potentially legal/tax issues).

Consider:

Dedicated business credit card: Makes categorization automatic and simplifies bookkeeping.
Separate bank accounts: For 1099 physicians, this is non-negotiable. Commingling funds is a red flag in audits and could even have legal implications.
Clear boundaries: If you're traveling for a conference and tack on a personal vacation day, split the costs and document which expenses were business vs. personal.

Summary: Proactive Habits Save Money

The $75 receipt rule is technically real, but it's too narrow to be useful for busy physicians. It's a safety net for when you accidentally lose a small receipt, not a permission slip to stop documenting your spending.

Proactive tax planning isn't just about the big end-of-year moves like retirement contributions and entity restructuring. It's about building year-round habits that protect your wealth and reduce stress.

Here's the bottom line:

Keep all receipts, regardless of amount
Use technology to make documentation effortless
Document the business purpose immediately
Separate business and personal expenses clearly
Work with a tax team that understands physician-specific challenges

When April rolls around, you'll thank yourself for making receipt management a reflex rather than a research project.

Disclaimer: This material is intended for educational and informational purposes only and does not constitute tax, legal, accounting, or financial advice. The content is general in nature and may not apply to your specific circumstances. Tax laws and financial regulations are subject to change and interpretation, and the application of these laws can vary based on individual situations. Before making any decisions, you should consult with a qualified tax advisor, legal counsel, or financial professional.