In the United States, the Internal Revenue Service (IRS) requires taxpayers to maintain adequate records to substantiate income, deductions, and credits reported on their federal tax returns. A receipt is often a key piece of that documentation. Failure to keep proper records can result in disallowed deductions, penalties, and additional tax assessments during an audit.
This article explains what the IRS requires, when receipts are necessary, and how long records must be retained.
1. General Recordkeeping Rule
Under federal tax law (26 U.S.C. § 6001 and related regulations), taxpayers must keep records sufficient to establish:
- Income received
- Expenses paid
- Cost basis of property
- Credits claimed
- Business use of assets
- Charitable contributions
The IRS does not require that records be submitted with the return. However, they must be available if the IRS requests them during an examination.
2. When Are Receipts Required?
A. Business Expenses
For business deductions (Schedule C, partnerships, corporations), you must keep records showing:
- Amount
- Date
- Place
- Business purpose
- Business relationship (for meals, entertainment—where applicable)
Key thresholds:
- All expenses must be supported by records.
- Meals, travel, lodging, and vehicle expenses require detailed substantiation.
- For travel, meals, gifts, and listed property (e.g., vehicles), stricter substantiation rules apply under IRC § 274(d).
Even small expenses should be supported by receipts or equivalent documentation.
B. The $75 Rule (Limited Exception)
For certain travel-related expenses, a receipt is not required if:
- The expense is less than $75, and
- It is not lodging.
However:
- The expense must still be recorded (date, amount, purpose).
- Lodging always requires a receipt, regardless of amount.
This exception does not eliminate the requirement to prove the business purpose.
C. Charitable Contributions
Documentation depends on the amount:
- Under $250 (cash donation): Bank record or written communication from the charity.
- $250 or more: Written acknowledgment from the qualified charitable organization is mandatory.
- Non-cash donations over $500: Additional reporting (Form 8283).
- Non-cash donations over $5,000: Qualified appraisal required (with limited exceptions).
The organization must be IRS-qualified under § 170(c).
D. Vehicle Expenses
If claiming:
- Standard mileage deduction: You must keep a mileage log (date, miles, business purpose).
- Actual expense method: Receipts for fuel, repairs, insurance, lease payments, etc., are required.
Contemporaneous logs are strongly recommended. Reconstructed logs are often challenged.
E. Home Office Deduction
You must retain:
- Mortgage interest or rent records
- Utilities
- Insurance
- Property taxes
- Square footage calculation documentation
The IRS expects documentation showing exclusive and regular business use.
3. Electronic Receipts
The IRS accepts:
- Digital receipts
- Scanned copies
- Electronic bank and credit card statements
Under Rev. Proc. 97-22, electronic recordkeeping systems are permissible if records are accurate, accessible, and reproducible.
Paper originals are not required if properly digitized.
4. How Long Must Records Be Kept?
Standard rule:
- 3 years from the date the return was filed.
Exceptions:
- 6 years if income is understated by more than 25%.
- 7 years for worthless securities or bad debt claims.
- Indefinitely for fraud or if no return was filed.
- Property records: Keep until the period of limitations expires after disposition.
5. What Happens Without Receipts?
If audited and unable to substantiate deductions:
- The IRS may disallow the expense.
- Additional tax may be assessed.
- Accuracy-related penalties (20%) may apply under IRC § 6662.
- Interest accrues on underpaid tax.
In limited cases, courts may apply the “Cohan rule” (from Cohan v. Commissioner) allowing estimated expenses, but this does not apply to expenses governed by § 274(d) (travel, meals, listed property). In practice, lack of receipts significantly weakens a taxpayer’s position.
6. Best Practices for Compliance
- Keep receipts organized by category.
- Maintain contemporaneous logs for mileage and travel.
- Use accounting software for tracking (especially for small businesses).
- Scan paper receipts regularly.
- Separate business and personal accounts.
- Reconcile bank and credit card statements monthly.
For business owners, especially those operating sole proprietorships or independent contractor structures, proper documentation is not optional—it is essential for defending deductions.
Conclusion
The IRS does not require taxpayers to submit receipts with their returns, but it does require that deductions be substantiated with reliable documentation. The burden of proof is on the taxpayer. Maintaining organized, accurate, and contemporaneous records is the safest way to protect against audit exposure and financial penalties.
If documentation does not exist, the deduction effectively does not exist.