Schedule C Expense Categories Explained
A line-by-line guide to every Schedule C expense category, the gray areas people get wrong (software, home office, meals, vehicle), and what is not deductible.
By Rashad Bayram | Published: 7/9/2026
The short answer: Schedule C Part II holds about twenty expense lines, and nearly all the difficulty is knowing which line a given transaction belongs on. Below is every category explained in plain terms, the handful of gray areas that cause most of the mistakes (software, home office, meals, vehicle, capital assets), and the costs that are not deductible at all. Business use of your home is the one big expense that does not sit in Part II; it is figured on Form 8829 and carried to line 30. Schedule C is where a sole proprietor or single-member LLC reports business income and expenses. The income side is usually simple. The expense side, Part II, is where the return is won or lost, because every business cost has to land on the right line, and a few categories are genuinely ambiguous. This is a working reference for all of them. Where the expense lines live Schedule C has three parts that matter here: Part I (income), Part II (expenses), and Part III (cost of goods sold, if you carry inventory). The expense categories in this guide are Part II, lines 8 through 27, plus line 30 for the home office. If you sell physical products, your direct product costs go through Part III as cost of goods sold rather than the Part II lines. Every Schedule C expense line, explained Here is each Part II line and what belongs on it. The official IRS Schedule C instructions are the authority; this is the plain-language version. Line Category What goes here 8 Advertising Online ads, print, sponsorships, business cards, website hosting and marketing 9 Car and truck Business vehicle costs, by standard mileage or actual expenses (not both) 10 Commissions and fees Sales commissions, referral fees, platform or payment-processing fees 11 Contract labor Payments to independent contractors (issue 1099-NEC where required) 12 Depletion Natural-resource depletion (rare for most businesses) 13 Depreciation and section 179 Capital assets written off over time or expensed under section 179 14 Employee benefit programs Benefits for employees (not the owner's own health insurance) 15 Insurance Business insurance: liability, property, malpractice (not health) 16 Interest Mortgage interest on business property (16a) and other business interest (16b) 17 Legal and professional services Lawyers, accountants, bookkeepers, consultants 18 Office expense Postage, software, stationery, small office items 19 Pension and profit-sharing Employer contributions to employee retirement plans 20 Rent or lease Vehicles and equipment (20a); office or other property (20b) 21 Repairs and maintenance Fixing and maintaining business property and equipment 22 Supplies Materials and tools consumed in doing the work 23 Taxes and licenses Business licenses, permits, and the employer share of payroll taxes 24a Travel Business travel: flights, lodging, transportation away from home 24b Deductible meals Business meals, generally 50% deductible 25 Utilities Business phone, internet, electricity, gas for the business 26 Wages Employee wages (not the owner's draw) 27a Other expenses Anything ordinary and necessary that has no line above; label each one 30 Business use of home Home-office deduction via Form 8829 or the simplified method Most transactions map cleanly. The trouble is concentrated in a small number of categories, below. The gray areas everyone gets wrong Software and subscriptions. No dedicated line. Put recurring SaaS in Office expense (18) or Other expenses (27a) with a label, and be consistent. Home office. Not a Part II line. It is Form 8829 (or the simplified square-footage method) carried to line 30, and it generally cannot create or deepen a loss. Also, the space must be used regularly and exclusively for business. Vehicle. Line 9 is either the standard mileage rate or actual expenses (gas, repairs, insurance, depreciation), not a mix in the same year. Whichever you choose, a mileage log is what defends it. Meals. 50% on line 24b, with the who and the business purpose recorded. Entertainment is not deductible. The 100% restaurant-meal rule was temporary and ended after 2022. Capital assets versus expense. A laptop, a machine, or furniture is a capital asset. It is depreciated or expensed under section 179 on line 13, not written off in full on a Part II expense line, unless it falls under the de minimis safe harbor. Startup costs. Up to $5,000 of startup costs can be deducted in the first year, with the rest amortized. They are not simply dropped onto line 27a in full. These six account for the large majority of misclassified Schedule C returns. When you categorize a bank statement, they are the rows to slow down on. What is not a Schedule C expense at all Just as important as the right line is knowing what never belongs on Schedule C: Personal spending. Not deductible, even on a business card. Owner draws. Money the owner takes out is not an expense; it reduces equity, not profit. Federal income and self-employment tax. Not a business expense. (Half of self-employment tax is deductible, but on the 1040, not Schedule C.) Commuting. Driving between home and a regular workplace is personal, not business travel. Fines, penalties, and political contributions. Never deductible. Getting these off the statement before you total anything is the single biggest driver of an accurate return, a point I make in detail in how to turn a bank statement into tax-ready categories . From bank statement to the right line Knowing the categories is one thing; assigning a few hundred real transactions to them is the actual work. That is where the reference above becomes a mapping problem: each row on a client's statement has to be matched to one of these lines, with the gray areas and the non-deductible items caught along the way. This is the step I built Taxformify to speed up. You drag and drop a bank statement, a CSV, Excel file, or PDF, into an AI chat, and it categorizes each transaction to the right Schedule C line and flags the ones that need your judgment, the possible personal charges and the capital-versus-expense calls, in a "Needs Review" list. It is built for US and Canadian practices, so the same tool maps to the Canadian T2125 categories too. I am not a CPA, and neither is my co-founder, but he runs a tax practice with over 1,500 clients, and turning a pile of statements into clean category totals was the part of the season he most wanted to automate. The wider workflow is where it fits. If you want to watch it categorize a real statement, book a short demo . The categories do not change much year to year. The work is in the mapping, and that is exactly the part worth automating. Frequently Asked Questions What are the expense categories on Schedule C? Schedule C Part II lists about twenty expense lines: advertising, car and truck, commissions and fees, contract labor, depletion, depreciation, employee benefit programs, insurance, interest, legal and professional services, office expense, pension and profit-sharing, rent or lease, repairs and maintenance, supplies, taxes and licenses, travel, deductible meals, utilities, wages, and a catch-all Other expenses line. Business use of your home is claimed separately on line 30 via Form 8829. What is the difference between Office expense and Supplies on Schedule C? Office expense (line 18) covers the cost of running the office: postage, software, small office equipment, and stationery. Supplies (line 22) covers items consumed in actually doing the work, materials and tools that get used up. The line is fuzzy for many businesses, so the real rule is to pick one treatment for a given type of cost and apply it consistently year to year. Where do software subscriptions go on Schedule C? There is no dedicated software line, so most preparers put recurring software and SaaS subscriptions in Office expense (line 18), or in Other expenses (line 27a) with a clear label like software subscriptions. Either is defensible. What matters is that it is deductible as an ordinary business cost and that you are consistent about where it lands. Can I deduct my home office on Schedule C? Yes, if you use part of your home regularly and exclusively for business. It does not go on the Part II expense lines, though. It is calculated on Form 8829 (or the simplified square-footage method) and carried to line 30. A key limit: the home-office deduction generally cannot create or increase a business loss, so it can be capped by your net income. How much of business meals can I deduct on Schedule C? Business meals are generally 50 percent deductible and go on line 24b. The temporary 100 percent deduction for restaurant meals expired after 2022, so for current years it is back to 50 percent. Entertainment is not deductible at all. Keep the who, what, and business purpose with each meal record. What cannot be deducted on Schedule C? Personal expenses, the owner's own draws (money you take out of the business is not an expense), federal income and self-employment taxes, commuting between home and a regular workplace, fines and penalties, political contributions, and the cost of capital assets in a single year (those are depreciated). Half of your self-employment tax is deductible, but on the 1040 itself, not on Schedule C. What are commissions and fees on Schedule C? Line 10, Commissions and fees, is for amounts you paid out in the course of business: sales commissions to reps or affiliates, referral fees, and the cut kept by platforms and payment processors, such as a marketplace fee or a card-processing percentage. It is for what you paid, not what you received. If a cost could sit on line 10 or another line, pick one treatment and keep it consistent year to year. What is the difference between Schedule B and Schedule C? They are different forms for different things. Schedule C reports the profit or loss from a business you run as a sole proprietor, and its Part II is where business expenses go. Schedule B reports interest and ordinary dividend income, and is generally required once that income is over 1,500 dollars. If you are looking for where business expenses belong, that is Schedule C, not Schedule B. Disclaimer This article is for general informational purposes and is not tax advice. Tax laws change frequently and individual situations vary. TaxFormify does not provide tax advice. Consult a licensed CPA or enrolled agent for guidance on your specific circumstances. Further reading Where Do Software Subscriptions Go on Schedule C? : the answer to the most common gray-area question. How to Turn a Bank Statement Into Tax-Ready Expense Categories : the workflow that uses this reference. T2125 Expense Categories Explained (Canada) : the Canadian equivalent of this guide. Tax Workflow Automation: A Day in the Life : where categorization fits in the season. Sources IRS, About Schedule C (Form 1040) IRS, Instructions for Schedule C IRS, Publication 334 (Tax Guide for Small Business) and Deducting Business Expenses IRS, Publication 587 (Business Use of Your Home) and Form 8829 IRS, Publication 463 (Travel, Gift, and Car Expenses) IRS, Publication 946 (How to Depreciate Property)