Sigma Tax Pro
API—OSS—FREE—DOCS4/5
ST5.2#16 of 29
outWeb—Windows—Mac—Linux—Android—iOS
Ranked in Small Business Tax Software ·No free plan on record
About
Sigma Tax Pro is ranked #16 of 29 in small business tax software on Inferse. It runs on Web. There is no free plan.
Compared on small business tax software
- Free plan
- Nosigmataxpro.com
- Paid from
- 495 one-timesigmataxpro.com
- Business entity support
- Forms 1120 and 1065; individual 1040 returnssigmataxpro.com
- Federal e-file
- Yessigmataxpro.com
- State e-file
- Yessigmataxpro.com
Facts
- Purpose
- Sigma Tax Pro offers professional tax preparation software for tax preparers, accountants, and CPAs.sigmataxpro.com · 8 Oct 2026
- Tax forms
- The company says its software covers Forms 1040, 1120, and 1065.sigmataxpro.com · 8 Oct 2026
- Software versions
- The 1040-TW and 1040-SR are offered in desktop and web-based versions.sigmataxpro.com · 8 Oct 2026
- 1040-TW tools
- 1040-TW includes hypothetical tax scenarios, diagnostics, instant calculations, and conversion software for most tax packages.sigmataxpro.com · 8 Oct 2026
- 1040-SR tools
- 1040-SR includes return status and acknowledgment views, error solving, form-based input, automatic updates, and federal and state forms.sigmataxpro.com · 8 Oct 2026
- Mobile app
- The 1040-SR mobile app lets taxpayers start or update returns, upload documents, check return status, send messages, and sign remotely.sigmataxpro.com · 8 Oct 2026
- Integrations
- Sigma Tax Pro says its products are powered by software developers including Drake and TaxWise, and it offers bank products through partners.sigmataxpro.com · 8 Oct 2026
- Bank products
- Available refund options listed include direct deposit, in-office check printing, and prepaid VISA/MasterCard options.sigmataxpro.com · 8 Oct 2026
- Security
- The 1040-TW web version says it uses an IRS-compliant system, and the 1040-SR web version lists secure SSL login and permission-based administration.sigmataxpro.com · 8 Oct 2026
- Mobile security
- The mobile app page says it uses multi-factor authentication for document uploads and communications.sigmataxpro.com · 8 Oct 2026
- Support
- Sigma says each software client has a dedicated account manager for tax preparation and software support throughout tax season.sigmataxpro.com · 8 Oct 2026
- Trial/demo
- The company provides desktop and web demos for its 1040-SR, 1040-TW, and 1040-DR products.sigmataxpro.com · 8 Oct 2026
- Notable limit
- The 1040-TW page says business returns such as Forms 1120 or 1065 require the desktop version.sigmataxpro.com · 8 Oct 2026
- Audience
- The 1040-SR is described as built for high-volume tax preparation businesses, including new EROs and growing tax offices.sigmataxpro.com · 8 Oct 2026
Company
- Headquarters
- 955 NW 17th Ave #E, Delray Beach, FL 33445, United Statessigmataxpro.com · 28 Sept 2026
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Where it ranks on Inferse
Sources
- sigmataxpro.com/about-us/· checked 8 Oct 2026
- sigmataxpro.com· checked 8 Oct 2026
- sigmataxpro.com/services/sigma-1040-tw/· checked 8 Oct 2026
- sigmataxpro.com/services/sigma-1040-sr/· checked 8 Oct 2026
- sigmataxpro.com/mobile-apps/· checked 8 Oct 2026
- sigmataxpro.com/download-demos/· checked 8 Oct 2026