Symmetry Software
Symmetry Software provides API-based payroll tax compliance infrastructure to payroll platforms, HR tech vendors, EOR/PEO providers, and large employers across the US and Canada, processing 64M+ paychecks annually across 7,000+ tax jurisdictions.
- Company typePrivate
- Founded1985
- HeadquartersScottsdale, United States
- Headcount51–100
- GTM typeB2B
- OfferingSoftware
What Symmetry Software does
Symmetry Software is a Scottsdale, Arizona-based B2B infrastructure provider that delivers payroll tax compliance APIs and software to payroll platforms, HR technology vendors, EOR/PEO providers, and large employers. Founded in 1984, the company has spent four decades building and maintaining a proprietary dataset covering 7,000+ US and Canadian tax jurisdictions, with rules updated weekly to reflect the constantly changing regulatory landscape. The platform processes 64M+ employee paychecks and 33M+ withholding forms annually, and is embedded as core tax calculation infrastructure inside major payroll platforms including ADP, Gusto, Paychex, Paylocity, UKG, Zenefits, and Deel.
The product portfolio centers on Symmetry Tax Engine, a REST API for gross-to-net payroll tax calculations, augmented by add-on modules covering withholding forms automation (130+ forms), I-9 verification with E-Verify integration, location-based local withholding determination (Payroll Point), minimum wage lookup, and payroll modeling calculators. In 2025 the company added two AI-augmented products: Symmetry Tax Logic, a 24/7 NLP-driven tax calculation expert, and Symmetry Guides, an AI-powered compliance knowledge retrieval tool. The platform runs on AWS with multi-region deployment (US-West-2 primary, US-East-2 backup) and is SOC 2 Type 2 certified, delivering 99.99% API uptime.
Symmetry operates an API-first, subscription-based revenue model combining direct enterprise field sales to large platforms with a self-serve developer portal for mid-market customers and startups. Pricing is not publicly disclosed and is delivered through customized quotes following demo requests. The go-to-market targets four primary segments (payroll providers, HR and fintech platforms, EOR/PEO, and large employers) via direct sales, content marketing, webinars, and developer relations, supported by leadership under CEO Elizabeth Oviedo and founder Tom Reahard.
Symmetry Software firmographics
Firmographics- Name
- Symmetry Software
- Legal name
- Symmetry Software LLC
- Website
- https://symmetry.com
- Company type
- Private
- Founded year
- 1985
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Symmetry Software provides API-based payroll tax compliance infrastructure to payroll platforms, HR tech vendors, EOR/PEO providers, and large employers across the US and Canada, processing 64M+ paychecks annually across 7,000+ tax jurisdictions.
- Ownership category
- akta.pro rank
Symmetry Software industry classification
Industry- Product category
- Payroll Tax Compliance Software
- NAICS
- Payroll Services (541214), Accounting, Tax Preparation, Bookkeeping, and Payroll Services (5412)
- SIC
- Services-Computer Programming, Data Processing, Etc. (7370), Services-Prepackaged Software (7372)
- akta.pro primary industry
- Employer Payroll Processing (SMB & Enterprise) (FSAMAKAA)
- akta.pro secondary industries
- Payroll Tax Filing, Compliance & Regulatory Reporting (BPAAAHAB), Payroll & Employment Tax Services (BPAHABAD), Payroll Audit, Reconciliation & Payroll Controls (BPACAIAJ)
Keywords
Where Symmetry Software is headquartered
LocationHeadquarters
- HQ city
- Scottsdale
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Symmetry Software business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Operations, Marketing or Sales, Infrastructure
Revenue model
- API/SaaS Licensing: Symmetry generates revenue through API and software licensing to payroll providers, HR platforms, and fintech companies. The company provides infrastructure-as-a-service for payroll tax compliance, charging for API usage, data access, and software integration services.
Go-to-market motion2 records
Distribution channels3 records
Marketing channels9 records
Symmetry Software product offering
Product offeringCore offering
Symmetry Software provides payroll tax compliance infrastructure through APIs and cloud software that enables payroll providers, HR platforms, enterprises, and fintech companies to calculate gross-to-net payroll taxes, automate payroll tax withholding forms, and maintain compliance across 7,000+ federal, state, and local tax jurisdictions in the U.S. and Canada. The platform processes over 64 million paychecks annually and serves customers including ADP, Gusto, Intuit QuickBooks, Workday, and Dayforce.
Product overview
Symmetry Software provides a comprehensive payroll tax compliance infrastructure platform. The core product is Symmetry Tax Engine, which enables accurate payroll tax calculations and automated new hire compliance for payroll providers, HR and fintech platforms. The platform covers 7,000+ tax jurisdictions, processes 64+ million employee paychecks annually, handles 33+ million withholding forms, and leverages 40+ years of payroll compliance expertise. The product portfolio includes Symmetry Tax Logic (AI-powered 24/7 tax calculation expert) and Symmetry Guides (AI-powered tax research with filing protocols) as add-on AI modules, along with specialized tools for payroll forms automation, I-9 verification, local tax rate determination (Payroll Point), minimum wage tracking, and payroll calculators. The offerings target U.S. and Canada markets.
Differentiator
Problem solved
Functional benefit
Brands
- Symmetry Tax Engine: Payroll tax calculation APIs for gross-to-net calculations, supporting U.S. and Canada.
- Symmetry Tax Logic
- Symmetry Guides
- Symmetry Payroll Forms
- Symmetry I-9
- Symmetry Payroll Point
- Symmetry Minimum Wage Finder
- Calculators by Symmetry
Products and services
- Symmetry Tax Engine
Quantifiable outcome
- 87% of employers lack fully automated Form I-9 verification processes, risking penalties
- +1 more outcomes
Companies that use Symmetry Software
Customer profileNamed customers14 records
Segments5 records
Ideal customer profiles3 records
Symmetry Software technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability4 records
Feature8 records
Symmetry Software partnerships and signals
Strategic signalScale indicators5 records
Recent moves6 records
Expansion highlights5 records
Symmetry Software competitors and assessment
Company assessmentDirect peers
- Greenshades Software: Greenshades provides payroll tax compliance and filing software for mid-market employers and payroll providers, directly overlapping with Symmetry's tax engine and forms automation offerings.
- PrismHR: PrismHR is a payroll, HR, and benefits platform purpose-built for PEOs and brokerages — a core customer segment for Symmetry that often builds or integrates payroll tax infrastructure of its own.
- Viventium Software: Viventium offers payroll, HR, and tax compliance software targeted at home care, staffing, and other vertical employers — competing with Symmetry's vertical-payroll go-to-market.
Broad incumbents
- Workday: Workday is a large enterprise HCM and payroll suite with its own tax calculation engine; its embedded payroll push is the primary long-term competitive threat to Symmetry's specialist positioning.
- ADP: ADP is the dominant US payroll provider and a current Symmetry customer; its scale and proprietary tax engine make it both the company's biggest reference logo and a potential in-housing risk.
- Ceridian / Dayforce: Dayforce (formerly Ceridian) operates a global HCM and payroll platform with embedded tax calculation, competing with Symmetry for mid-market and enterprise payroll platform integrations.
- UKG: UKG is a large HCM and workforce management provider and a current Symmetry customer; its Pro and Ready suites overlap with Symmetry's value proposition for HR platforms.
Emerging players
- Deel: Deel is a fast-growing global EOR and payroll platform that currently uses Symmetry for US/Canada tax compliance, illustrating how next-gen payroll players can be both customer and potential competitor.
- Globalization Partners: Globalization Partners is a global EOR platform expanding payroll capabilities that intersect with Symmetry's tax compliance infrastructure for cross-border workforce scenarios.
- Remote: Remote is a global EOR and payroll platform building in-house tax compliance; it represents the type of emerging player Symmetry could either integrate with or compete against for embedded US/Canada payroll.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat6 records
Key risks5 records
Key highlights6 records
Customer concentration
Symmetry Software social profiles
Digital presenceSymmetry Software compliance and trust
Trust signalCompliance1 record
Symmetry Software financial estimates
Financial estimateRevenue estimate
Valuation estimate
Symmetry Software leadership team
Management profileNumber of profiles
Profiles3 records
Symmetry Software funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Symmetry Software M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Symmetry Software
What does Symmetry Software do?
Symmetry Software provides payroll tax compliance infrastructure through APIs and cloud software that enables payroll providers, HR platforms, enterprises, and fintech companies to calculate gross-to-net payroll taxes, automate payroll tax withholding forms, and maintain compliance across 7,000+ federal, state, and local tax jurisdictions in the U.S. and Canada. The platform processes over 64 million paychecks annually and serves customers including ADP, Gusto, Intuit QuickBooks, Workday, and Dayforce.
Is Symmetry Software a public or private company?
Symmetry Software is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Symmetry Software founded?
Symmetry Software was founded in 1985. It employs 51 to 100 people.
Where is Symmetry Software based?
Symmetry Software is headquartered in Scottsdale, United States, in the North America region.
How does Symmetry Software make money?
One revenue line is on record: API/SaaS Licensing.
Who are Symmetry Software's main competitors?
Direct peers on record are Greenshades Software, PrismHR and Viventium Software. Broad incumbents are Workday, ADP, Ceridian / Dayforce and UKG. Emerging players are Deel, Globalization Partners and Remote.
Does Symmetry Software have an API?
Yes. REST API for payroll tax calculations, withholding forms, and compliance verification, enabling developers to integrate payroll tax capabilities into applications. The API documentation is available through their developer portal. Developer documentation is at docs.symmetry.com/reference/api-welcome.
What industry is Symmetry Software in?
Symmetry Software's product category is Payroll Tax Compliance Software. Its primary akta.pro industry code is FSAMAKAA, Employer Payroll Processing (SMB & Enterprise), with a secondary code of BPAAAHAB, Payroll Tax Filing, Compliance & Regulatory Reporting. Its NAICS code is 541214 and its SIC code is 7370.