Expense Categorization Cheat Sheet

A quick-reference guide for properly categorizing every business expense

Why Categorization Matters

Correctly categorizing expenses ensures accurate financial reports, maximizes tax deductions, and keeps you audit-ready. This cheat sheet covers the most common expense categories with examples and IRS deductibility notes.

Quick Reference Table

Category	Common Examples	IRS Schedule C Line	Deductible?
Advertising & Marketing	Google Ads, business cards, social media ads, website hosting	Line 8	Full
Car & Vehicle	Gas, mileage, tolls, parking (business use)	Line 9	Partial
Contract Labor	Freelancers, independent contractors (paid $600+)	Line 11	Full
Insurance	Business liability, professional liability, workers' comp	Line 15	Full
Interest	Business loan interest, business credit card interest	Line 16	Full
Legal & Professional	Attorney, CPA, bookkeeper, consultants	Line 17	Full
Office Expenses	Printer ink, paper, pens, desk supplies	Line 18	Full
Rent / Lease	Office rent, equipment leases, coworking space	Line 20	Full
Repairs & Maintenance	Equipment repair, office maintenance	Line 21	Full
Supplies	Raw materials, packaging, cleaning supplies	Line 22	Full
Taxes & Licenses	Business licenses, permits, state taxes	Line 23	Full
Travel	Flights, hotels, rental cars (business purpose)	Line 24a	Full
Meals	Client meals, business travel meals	Line 24b	50%
Utilities	Electric, water, internet, phone (business use)	Line 25	Full
Wages & Payroll	Employee salaries, payroll taxes, benefits	Line 26	Full
Software & SaaS	Accounting software, project management, design tools	Line 27a	Full
Education & Training	Courses, conferences, books (related to business)	Line 27a	Full
Bank & Merchant Fees	Payment processing, monthly bank fees, wire fees	Line 27a	Full
Home Office	Portion of rent/mortgage, utilities, internet	Line 30	Partial
Depreciation	Equipment, vehicles, furniture (over useful life)	Line 13	Full

Detailed Category Breakdowns

Advertising & Marketing

Any cost incurred to promote your business to customers.

Online ads (Google, Facebook, Instagram, LinkedIn)
Print materials (business cards, flyers, brochures)
Website design, hosting, and domain registration
SEO and content marketing services
Sponsorships and promotional events
Email marketing platforms (Mailchimp, etc.)

Car & Vehicle Expenses

You can use standard mileage (67¢/mile for 2024) or actual expenses—not both.

Standard mileage: Track miles driven for business purposes
Actual expenses: Gas, oil, repairs, tires, insurance, registration, depreciation
Parking fees and tolls are deductible under either method
Commuting from home to a regular office is not deductible

Record-keeping: Log the date, destination, business purpose, and miles for every trip. Apps and mileage trackers make this easy.

Meals & Entertainment

Business meals with clients or prospects — 50% deductible
Meals during business travel — 50% deductible
Office snacks and coffee for employees — 50% deductible
Entertainment (sporting events, concerts) — Not deductible (since 2018 tax reform)

Documentation: Record who attended, the business purpose, and the amount. Write it on the receipt or in your expense notes.

Home Office

If you use part of your home exclusively and regularly for business:

Simplified method: $5 per sq ft, max 300 sq ft = $1,500 max deduction
Regular method: Calculate the percentage of your home used for business, apply to mortgage/rent, utilities, insurance, repairs
Space must be your principal place of business or used to meet clients
A dedicated room or clearly defined workspace is ideal

Software & Subscriptions

Accounting/bookkeeping software (Poof, etc.)
Project management (Asana, Monday, Trello)
Design tools (Canva, Adobe Creative Cloud)
Communication tools (Slack, Zoom, Google Workspace)
Industry-specific software and cloud services
Website/app hosting (AWS, Vercel, etc.)

Common Categorization Mistakes

Mistake	Correct Approach
Putting everything under "Miscellaneous"	Use specific categories—it maximizes deductions and makes reports useful
Categorizing owner draws as expenses	Owner draws are equity transactions, not expenses
Mixing personal and business purchases	Only categorize the business portion; split transactions if needed
Categorizing equipment as supplies	Items over $2,500 should be capitalized and depreciated (or expensed under Section 179)
Missing contractor payments	Track all contractor payments—you must issue 1099s for anyone paid $600+
Forgetting to split mixed-use expenses	Phone, internet, car—calculate and deduct only the business percentage

IRS Red Flags to Avoid

Disproportionately large meals & entertainment relative to revenue
100% business use of a vehicle (rare and scrutinized)
Large round numbers without receipts
Home office deduction without exclusive-use documentation
Excessive travel expenses for your business type

Quick Decision Flowchart

Is this expense ordinary and necessary for my business?

→ Yes: Categorize under the most specific category available
→ Partially: Split the expense — deduct only the business portion
→ No: Personal expense — do not record as a business expense

Is it over $2,500?

→ Yes: Consider capitalizing as an asset (equipment, furniture, etc.)
→ No: Record as a current-period expense

Poof Tip: Poof uses AI to automatically categorize your transactions as they're imported from your bank. You can set up custom rules so recurring expenses are always categorized correctly—saving you hours every month.