Fill Schedule C (Profit or Loss from Business) online
Schedule C is the IRS form sole proprietors and single-member LLCs file with Form 1040 to report business profit or loss. Two pages, dozens of expense categories. AttachKit's profile-based drafting speeds the parts that repeat every year (your business name, EIN, address, principal business code) so you can focus on the line-items.
Who needs it: Sole proprietors. Single-member LLCs taxed as disregarded entities. Side-business filers (Uber, freelance writing, consulting) whose income exceeds the $400 self-employment threshold.
Need a blank Schedule C? Download from the source, then drop it in below.
Why fill it here
- Draft business name, EIN, address, accounting method, and principal business code from your profile.
- Manual entry for income (line 1) + expense lines — AttachKit doesn't compute deductions for you, but the structured fields make math easier.
- Pairs with /fill/schedule-se for the self-employment tax computation.
- Free to fill unlimited forms (15 signed PDFs/mo on the free tier). Pro tier ($12/mo) for unlimited.
Fill your Schedule C now
Schedule C questions, answered
General information, not legal or tax advice
This page is general information about a commonly-used tax form. Tax law is complex and fact-specific — for advice on your return, consult a CPA, enrolled agent, or tax attorney. AttachKit fills the PDF; the IRS holds you responsible for what's on it.
- Does AttachKit calculate my deductions?
- No. Schedule C deductions (home office, vehicle, depreciation, COGS) require judgment calls AttachKit isn't qualified to make. Enter the amounts yourself or have your CPA review before filing.
- What's the difference between Schedule C and Schedule C-EZ?
- C-EZ was retired after tax year 2018. Everyone uses Schedule C now, even with under-$5K expenses.
- Do I file Schedule C with my 1040?
- Yes. Schedule C is an attachment to Form 1040; the net profit/loss flows to Schedule 1 line 3, then to your 1040.