Expense Tracker for 1099 Contractors
Track every deduction. Auto-map to Schedule C. Export and file.
If you receive a 1099-NEC, you're self-employed — and Schedule C is your tax form. Every legitimate business expense reduces your taxable income and your self-employment tax bill. CentSense makes sure you capture all of them.
Who Is a 1099 Contractor?
You're a 1099 independent contractor if a client pays you for services and issues a 1099-NEC (if $600 or more in a year). Common situations:
- Freelancers and consultants (any industry)
- Gig workers (Uber, DoorDash, Instacart, TaskRabbit)
- Etsy sellers and online shop owners
- Real estate agents
- Contract software developers, designers, writers
- Healthcare locums and staffing agency workers
All of these file Schedule C to report income and deduct expenses.
Core Deductions for 1099 Contractors
| Expense | Schedule C Line | Notes |
|---|---|---|
| Home office | Line 30 | Exclusive use required |
| Equipment and tools | Line 22 | Under $2,500 in year one |
| Software subscriptions | Line 22 | Business use only |
| Phone bill (business %) | Line 25 | Log your usage split |
| Internet (business %) | Line 25 | Prorate if home use |
| Mileage | Line 9 | $0.725/mile in 2026 |
| Contract labor paid | Line 11 | Issue 1099-NEC if ≥ $600 |
| Professional development | Line 22 | Courses, books, conferences |
| Health insurance | Schedule 1 | Above-the-line deduction |
Self-Employment Tax: The Cost You Can Partially Deduct
As a 1099 contractor, you pay 15.3% SE tax on net profit. Unlike employees, no employer pays half for you.
The good news: You deduct half of SE tax on Schedule 1, Line 15. This reduces your adjusted gross income before calculating income tax.
Budgeting rule of thumb: Set aside 25–30% of every payment for federal taxes (SE tax + income tax bracket).
Quarterly Estimated Taxes
If you expect to owe $1,000+ for the year, pay quarterly:
| Quarter | Covers | Due Date (2026) |
|---|---|---|
| Q1 | Jan–Mar | April 15, 2026 |
| Q2 | Apr–May | June 16, 2026 |
| Q3 | Jun–Aug | September 15, 2026 |
| Q4 | Sep–Dec | January 15, 2027 |
Missing a payment triggers an underpayment penalty, even if you pay in full at filing.
Ready to Track Everything?
CentSense scans your receipts with AI, maps them to Schedule C lines automatically, and exports a tax-ready CSV at year-end. The free plan includes 10 scans/month. Solo ($5/month) adds unlimited scans, mileage tracking, client projects, and batch upload.
How to track Schedule C expenses →
Complete Schedule C line guide →