Our Services
US SALES TAX FILING
- ✔ Rapid AI processing in first week of month
- ✔ Precise compliance with maximum deductions
- ✔ No manual entry & no human involvement
- ✔ No over spending, just pay $30 per filing
The Sigma Files Process
We provide a secure, step-by-step journey to ensure your tax returns are filed accurately and efficiently across all states.
01
Secure Document Upload
Upload your W-2s, 1099s, and bank statements directly to our encrypted portal using our secure, multi-factor authentication system.
02
Automated Compliance Check
Our AI-driven engine cross-references your data against IRS regulations and state-specific requirements to identify all eligible deductions.
03
Multi-State Filing
Instantly generate and submit your tax returns to all relevant state agencies, ensuring compliance across every jurisdiction you operate in.
04
Online Payment & Confirmation
Complete your payments securely through our integrated payment gateway and receive instant confirmation of your filing status.
What Our Clients Say
"Sigma Files made our multi-state tax filing incredibly stress-free. Their attention to detail is unmatched."
Sarah Jenkins, Small Business Owner
"As a freelancer, I needed a reliable way to handle my deductions. Sigma Files has been my go-to for years."
David Miller, Freelance Designer
"Professional, transparent, and fast. They handled our complex IRS compliance requirements perfectly."
Elena Rodriguez, Accountant