Connect your accounts.
Bring your bank transactions into one place. Start with the expenses you already have.
For everyone working for themselves.50 states + DC
You did
the work.
Keep more of it.
Miles. Phone bills. Platform fees.
Your work comes with expenses.
Sourdough finds the write-offs.
$0 to scan. No credit card. See the math first.
Small expenses. Real write-offs.
Every deduction, with the business use and tax rule beside it.
A phone bill, for exampleBusiness use matters
- Monthly bill
- $120
- Business use
- 75%
- Potential deduction
- $90
Illustrative example. A deduction reduces taxable income; it isn’t a $90 refund.
Find your write-offs.
AI checks expenses against federal and state deduction rules. You see the math and citations.
Review. Then file.
Check your deductions, then continue to federal and state filing. Add a CPA Screen if you want help.
Clear from the start.
Federal + state self-filefrom $49
Scan and estimate up to 3 years for free. Self-file is $49 under $100,000 income; $99 above. CPA Screen is a separate paid add-on.
A couple of good questions.
Is this for me?
If you work for yourself, freelance, drive, deliver, or get paid on a 1099, start here. Free scan and signup are open in all 50 states. Washington, DC is included too.
What does the scan show?
Potential business deductions from your transactions, with the calculation and tax-code citation. Your expenses and business use determine what qualifies.
Do I have to file with Sourdough?
The deduction scan is free. You can look through your results before choosing paid self-file or adding a CPA Screen.