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On the recordRead 9 Oct 202621 facts
Sigma Files
Plans and prices
Essential
$24.90a month
Filing compliance for 1 state · dashboard access · AI-verified, cross-checked filings
Read 9 Oct 2026 · sigmafiles.com
Growth
$64.90a month
Filing compliance for up to 3 states · dashboard access · AI-verified, cross-checked filings
Read 9 Oct 2026 · sigmafiles.com
Professional
$149.90a month
Filing compliance for up to 7 states · dashboard access · AI-verified, cross-checked filings
Read 9 Oct 2026 · sigmafiles.com
Sales tax registration
$149one-time
One state per registration
Read 9 Oct 2026 · sigmafiles.com
Custom Coverage
Priced on request
Select exactly the states you need · dashboard access · AI-verified, cross-checked filings
Read 9 Oct 2026 · sigmafiles.com
On the record
- AI checks
- The site says its AI checks returns against current state rules, rates, thresholds, and forms using a database updated daily.sigmafiles.com · read 9 Oct 2026
- Coverage limit
- The site lists filing plans covering 1, up to 3, or up to 7 states, with custom coverage priced per state.sigmafiles.com · read 9 Oct 2026
- Dashboard
- The filing plans include dashboard access for status, documents, and messages, and the site says filing history and confirmations are kept in a secured user dashboard.sigmafiles.com · read 9 Oct 2026
- Data collected
- The privacy policy says the service may collect contact, financial, business, and communication information to provide its services.sigmafiles.com · read 9 Oct 2026
- Deductions
- The filing process identifies eligible deductions and exemptions, and the service says it applies maximum eligible deductions.sigmafiles.com · read 9 Oct 2026
- Filing
- For registered states, Sigma Files prepares and files returns on monthly, quarterly, or annual schedules.sigmafiles.com · read 9 Oct 2026
- Filing support level
- automatedsigmafiles.com · read 22 Sep 2026
- Jurisdictions covered
- 50sigmafiles.com · read 22 Sep 2026
- Prerequisite
- A business must be registered in a state before ongoing filing there; Sigma Files says it handles registration first if needed.sigmafiles.com · read 9 Oct 2026
- Privacy and compliance
- The privacy policy says Sigma Files complies with applicable data protection laws including GDPR and CCPA.sigmafiles.com · read 9 Oct 2026
- Product
- Sigma Files provides AI-powered sales tax registration and filing services across all 50 US states.sigmafiles.com · read 9 Oct 2026
- Registration
- The service reviews nexus and prepares and submits sales tax permit applications for states where a business has economic or physical nexus.sigmafiles.com · read 9 Oct 2026
- Return filing
- Yessigmafiles.com · read 22 Sep 2026
- Security
- The privacy policy says the company uses encryption, secure servers, and access controls to safeguard personal and financial information.sigmafiles.com · read 9 Oct 2026
- Paid from
- 24.9sigmafiles.com · read 22 Sep 2026
- State notices
- If a state flags a return, Sigma Files says it reviews the matter with the customer and handles the response.sigmafiles.com · read 9 Oct 2026
- Submission
- The filing goes directly to the state by its due date, and the customer receives confirmation and a record of what was submitted.sigmafiles.com · read 9 Oct 2026
- Support
- The site lists [email protected] for queries and says the company reviews state flags with customers and handles the response.sigmafiles.com · read 9 Oct 2026
