ReceGuard
Quick answer: the Schedule C expense categories
Schedule C Part II has twenty numbered expense lines. In order: 8 Advertising, 9 Car and truck, 10 Commissions and fees, 11 Contract labor, 12 Depletion, 13 Depreciation and section 179, 14 Employee benefit programs, 15 Insurance (other than health), 16a/16b Interest, 17 Legal and professional services, 18 Office expense, 19 Pension and profit-sharing, 20a/20b Rent or lease, 21 Repairs and maintenance, 22 Supplies, 23 Taxes and licenses, 24a Travel, 24b Deductible meals, 25 Utilities, 26 Wages, 27a Other expenses. Line 30 handles business use of your home separately.
Use these names as your receipt categories from the start. Every custom category you invent is a translation job you have postponed rather than avoided.
Schedule C expense categories, line by line
This is the working reference. The third column is the part that saves time later: what a receipt in that category should carry beyond the amount.
| Line | Category | What belongs here | Note to keep with the receipt |
|---|---|---|---|
| 8 | Advertising | Ads, promoted posts, flyers, listing fees, logo and design work, sponsorships | Campaign or channel. |
| 9 | Car and truck expenses | Standard mileage or actual vehicle costs, plus business parking and tolls | Trip purpose and which vehicle. |
| 10 | Commissions and fees | Sales commissions, referral fees, marketplace and platform commissions | Who was paid and for which sale. |
| 11 | Contract labor | Payments to non-employees for services; may require a 1099-NEC | Contractor name and the work performed. |
| 12 | Depletion | Natural resource extraction. Rare outside mining, timber and oil and gas | — |
| 13 | Depreciation and section 179 | Equipment, vehicles, furniture and other assets with a useful life beyond a year | Date placed in service, cost, business-use percentage. |
| 14 | Employee benefit programs | Benefits for employees other than pension plans; not your own health insurance | Which benefit and which employees. |
| 15 | Insurance (other than health) | Liability, professional indemnity, business property, business vehicle cover | Policy type and period covered. |
| 16a / 16b | Interest | 16a mortgage interest on business property; 16b other business loan and credit interest | Which loan or account. |
| 17 | Legal and professional services | Accountants, attorneys, bookkeepers and business tax advice or preparation | Keep the invoice with the payment proof. |
| 18 | Office expense | Office supplies and postage | Usually none needed. |
| 19 | Pension and profit-sharing plans | Employer contributions for employees; not your own SEP or SIMPLE contribution | Plan name and period. |
| 20a / 20b | Rent or lease | 20a vehicles, machinery and equipment; 20b other business property such as premises | What was leased and for how long. |
| 21 | Repairs and maintenance | Incidental repairs that do not add value or appreciably prolong an asset's life | What was repaired, and that it was a repair not a replacement. |
| 22 | Supplies | Materials and supplies actually consumed and used in the business that year | Job, project or customer. |
| 23 | Taxes and licenses | Business licenses, regulatory fees, property tax on business assets, employer payroll taxes | The jurisdiction and period. |
| 24a | Travel | Airfare, hotels, rental cars, baggage and other away-from-home costs | Trip dates, destination and business purpose. |
| 24b | Deductible meals | Business meals, usually subject to the 50% limit | Who attended and the business purpose. |
| 25 | Utilities | Business electricity, gas, water, and phone lines beyond the first home line | Which premises or line. |
| 26 | Wages | Employee wages, less any employment credits | Payroll period. |
| 27a | Other expenses | Legitimate costs with no line above; itemised individually in Part V | A specific description, never "misc". |
| 30 | Business use of home | Simplified method or Form 8829; a separate calculation, not a receipt bucket | Square footage and exclusive-use evidence. |
A few lines catch people out by omission. There is no line for software, no line for training or courses, no line for bank fees and no line for your own health insurance — the last of those is an adjustment on Form 1040, not a Schedule C expense at all.
The five pairs people mix up
Office expense (18) vs Supplies (22)
The instructions draw a sharper line than most people expect. Line 18 is for office supplies and postage. Line 22 is for materials and supplies you actually consumed and used in the business during the year. Printer toner for your own admin is line 18; the paint you applied to a client's wall is line 22.
Repairs (21) vs Depreciation (13)
Line 21 is for incidental repairs that do not add to the property's value or appreciably prolong its life, and the instructions are explicit that amounts spent to restore or replace property must be capitalised instead. Patching a van's bumper is a repair; a new engine is not.
Travel (24a) vs Car and truck (9)
Travel is being away from your tax home overnight: flights, hotels, rental cars. Driving your own vehicle is line 9 regardless of distance. A trip can generate both — the flight on 24a, the mileage to the airport on line 9.
Contract labor (11) vs Legal and professional (17)
Line 17 is specifically accountants and attorneys, plus business tax advice and return preparation. Other contractors — a designer, a developer, a subcontractor on a job — belong on line 11, which is also the line that triggers 1099-NEC reporting once you cross the threshold.
Utilities (25) vs Home office (30)
If the utility serves a business premises, it is line 25. If it serves your home and you are claiming a portion for a home office, it belongs in the line 30 calculation instead, not both. The phone rule is oddly specific: you cannot deduct the base rate of the first phone line into your residence, but you can deduct additional business costs beyond it, including a second line.
Mixed-use purchases
Mixed use is where most self-employed bookkeeping quietly goes wrong, because the decision is easy in the moment and impossible to reconstruct a year later.
| Purchase | What to record at the time | Why it matters |
|---|---|---|
| Phone bill | Business percentage, and how you arrived at it | The first residential line is excluded outright; the rest needs a basis. |
| Laptop | Business-use percentage and the date placed in service | Drives depreciation or section 179, and the percentage can change. |
| Vehicle | Business miles versus total miles | Listed property. Strict substantiation applies, and estimates do not. |
| Home internet | Business share, consistent with the home office claim | Double-counting against line 30 is a common error. |
| Supermarket trip with two office items | Split the receipt, or note the two lines | The whole receipt is not deductible just because part of it is. |
Write the percentage and the reasoning into the record. "60% business, based on the June call log" survives questioning. "60%" alone is a number you will not be able to defend or even remember.
What each category needs beyond the receipt
Not all categories carry the same evidentiary weight. Section 274(d) of the tax code singles out travel, meals, gifts and listed property for strict substantiation, which means no estimating and no approximation. Publication 463 sets out the elements.
| Category | Elements to record | Strict substantiation? |
|---|---|---|
| Travel (24a) | Amount, dates away, destination, business purpose | Yes |
| Meals (24b) | Amount, date, place, business purpose, business relationship of attendees | Yes |
| Car and truck (9) | Mileage per business use, date, destination, business purpose, total annual miles | Yes |
| Gifts | Cost, date, description, recipient and relationship | Yes |
| Supplies, office, utilities, rent | Amount, date, vendor, business purpose | No — ordinary recordkeeping |
What happens when the receipt is missing
"Schedule C audit with no receipts" is one of the most searched phrases in this area, and it deserves a straight answer rather than reassurance.
For ordinary expenses, the Cohan rule — from a 1930 case involving the entertainer George M. Cohan — lets a court estimate a deduction where it is clear an expense was incurred but the records are imperfect. Courts apply it reluctantly, they estimate against the taxpayer, and they require some credible basis for the figure. Our guide to proving an expense after losing the receipt covers the steps that make an estimate unnecessary.
For travel, meals, gifts and listed property, Cohan does not apply at all. Section 274(d) overrode it for exactly those categories. No record, no deduction — which is precisely why the vehicle log and the meal note matter more than the supermarket slip.
Practical substitutes, in rough order of usefulness: the vendor's duplicate copy, an emailed order confirmation, a card statement paired with a contemporaneous calendar entry, and a written reconstruction made as close to the event as possible. The last one is weak, but it is better than nothing and far better than a reconstruction written the week of the audit.
Five mistakes that turn into tax-season work
- A large, vague line 27a. Other expenses are itemised in Part V for a reason. "Miscellaneous $9,400" invites the question you least want asked.
- Switching categories between years. Software on line 18 one year and 27a the next makes your own year-over-year figures meaningless.
- Putting the whole receipt in one category. Split receipts are normal. A single trip can touch supplies, meals and car and truck.
- Claiming the first home phone line. The instructions exclude its base rate outright, and it is an easy adjustment for anyone reviewing the return.
- Deferring categorization to April. The category decision is cheap on the day and expensive eleven months later, when the only information left is a merchant name.
Frequently asked questions
What are the Schedule C expense categories?
Part II of Schedule C has 20 numbered expense lines, from line 8 (Advertising) to line 27a (Other expenses), plus line 30 for business use of your home. The full list with what belongs on each line is in the table above.
What is the difference between office expense and supplies on Schedule C?
The IRS instructions are unusually specific. Line 18 Office expense covers office supplies and postage. Line 22 Supplies covers materials and supplies to the extent you actually consumed and used them in the business during the tax year. Printer paper is office expense; timber used on a client's job is supplies.
Where do software subscriptions go on Schedule C?
There is no software line. Most sole proprietors put recurring software on line 18 Office expense or line 27a Other expenses with a clear description. Pick one and be consistent; switching between years makes a year-over-year comparison meaningless.
Can I claim expenses on Schedule C without receipts?
Sometimes. The Cohan rule allows a court to estimate a deductible expense where the taxpayer clearly incurred one but the records are imperfect. It does not apply to travel, meals, gifts or listed property such as vehicles, which section 274(d) requires to be strictly substantiated. Estimating is a fallback, not a plan.
What is line 27a Other expenses used for?
Legitimate business costs that have no home in lines 8 through 26 — you list them individually in Part V and carry the total to 27a. A large, vaguely described 27a is a common audit flag, so name each item.
Do I put mileage in car and truck expenses?
Yes, line 9. If you use the standard mileage rate, that line holds the miles multiplied by the rate, plus business parking and tolls. If you use actual expenses, it holds the business-use share of fuel, insurance, repairs and depreciation instead. Part IV of Schedule C asks for your vehicle details either way.
Is a business meal 50% or 100% deductible in 2026?
Most business meals are subject to the 50% limit. Some narrow exceptions are fully deductible, such as food provided to the general public for advertising purposes or at a company-wide recreational event. Enter the full amount in your records and apply the limit at filing, rather than recording half and forgetting why.
Should I use my own categories or Schedule C lines?
Use the Schedule C lines. Custom categories have to be translated into form lines eventually, and translating a year of receipts in April is exactly the work the categories were supposed to prevent.
Where ReceGuard fits: assign a Schedule C line to a receipt as you save it, keep the business purpose and the mixed-use split on the record, and export a tax package grouped by line when your accountant asks for one. The image stays attached to the numbers, so a category decision can always be traced back to the receipt that prompted it.
Sources
- IRS: Instructions for Schedule C (Form 1040)
- IRS: About Schedule C (Form 1040)
- IRS Publication 463: Travel, Gift, and Car Expenses
- IRS Publication 334: Tax Guide for Small Business
- IRS: Recordkeeping
This article is general recordkeeping information, not tax advice. Line numbers and rules can change between tax years; check the instructions for the year you are filing.
Scan receipts, log mileage and export a tax package when you need one.
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