# How PortaPro Maps Expenses to Schedule C
What Is Schedule C?
IRS Schedule C (Form 1040) is the tax form sole proprietors and self-employed individuals use to report business profit or loss. As a portable sanitation operator, you file Schedule C to report revenue, deduct business expenses, and calculate net profit which determines your tax liability.
Most operators dread this because sorting a year's worth of expenses takes hours. PortaPro eliminates that work by doing the categorization all year long, automatically.
The Pre-Mapped Category System
Every expense category in PortaPro comes pre-assigned to the correct IRS Schedule C line. When you log an expense and pick a category, you've already done the tax categorization. Nothing extra to do at year-end.
Default Category → Schedule C Line Mapping
| PortaPro Category | Schedule C Line | IRS Label |
|---|---|---|
| Vehicle Fuel | Line 9 | Car and truck expenses |
| Vehicle Maintenance & Repairs | Line 9 | Car and truck expenses |
| Vehicle Insurance | Line 9 | Car and truck expenses |
| Vehicle Payments / Lease | Line 20a | Vehicles, machinery, equipment rent or lease |
| Disposal & Dump Fees | Line 22 | Supplies |
| Chemicals & Deodorizers | Line 22 | Supplies |
| Equipment Purchase | Line 13 | Depreciation ⚠️ |
| Equipment Repairs & Parts | Line 21 | Repairs and maintenance |
| Rent / Yard / Storage | Line 20b | Other business property rent |
| Utilities | Line 25 | Utilities |
| Insurance (GL / Workers Comp) | Line 15 | Insurance (other than health) |
| Payroll & Labor | Line 26 | Wages |
| Subcontractors (1099) | Line 11 | Contract labor |
| Permits & Licenses | Line 23 | Taxes and licenses |
| Marketing & Advertising | Line 8 | Advertising |
| Software & Subscriptions | Line 18 | Office expense |
| Office Supplies | Line 18 | Office expense |
| Professional Fees | Line 17 | Legal and professional services |
| Bank Fees & Interest | Line 27a | Other expenses |
⚠️ Important note on Equipment Purchase (Line 13 Depreciation): Equipment over $2,500 typically requires a depreciation schedule rather than a full deduction in the year of purchase. PortaPro flags this in the export with a note to review with your accountant.
Custom Categories
If you create your own expense categories beyond the defaults:
Why This Matters
Without PortaPro, year-end typically means pulling bank statements, manually sorting transactions, guessing which line "fuel" goes on, and handing your accountant a messy spreadsheet.
With PortaPro, every expense was categorized as it was entered, every category is already on the right Schedule C line, and you can export a complete summary in under 30 seconds.