What Deloitte Tax does

Deloitte Tax is the tax services practice of the Deloitte global network of member firms, operating in the United States under Deloitte Tax LLP and serving Fortune 500 corporations, large multinationals, and federal, state, and local government agencies. The practice delivers the full lifecycle of tax advisory, covering business tax compliance and planning, Washington National Tax (federal tax policy and legislative advisory), multistate tax, international tax, transfer pricing, mergers and acquisitions tax, global employer services, indirect tax, and legal business services. Its underlying technology stack comprises the Tax Technology Consulting practice, Business Process Solutions for outsourced tax and finance processes, and the IndustryAdvantage™ methodology, augmented by an enterprise technology alliance ecosystem spanning AWS, Google, Oracle, Salesforce, SAP, ServiceNow, Workday, and Snowflake. The firm expanded its strategic alliance with Snowflake in November 2025 to develop unified tax data models, standardized reporting, and GenAI-driven analytics for tax department modernization.

The firm's revenue model is professional services billing, with fees negotiated by engagement scope and complexity, historically not publicly disclosed. Deloitte Tax LLP is the core operating US subsidiary, under the coordination of the UK parent Deloitte Touche Tohmatsu Limited (DTTL), a private company limited by guarantee; the entity has no external shareholders, public listing, or venture capital sponsorship. Its go-to-market is enterprise field sales targeting large organizations, supported by dedicated account teams, senior relationship managers, and a multi-channel thought leadership engine (Deloitte Insights, Dbriefs Webcasts, Weekly Economic Update, and the annual FanTAXtic case competition, which engaged 391 students from 61 colleges in 2026 with 23% year-over-year participation growth).

Deloitte Tax competes as one of the "Big Four" tax practices globally, with a workforce of 10,000+ US tax professionals. Customer concentration is centered on large enterprises and regulated verticals including Insurance, Health Care & Life Sciences, Private Equity, Energy/Resources/Industrials, Sports, Media, and government agencies. Recent strategic actions include the November 2025 expansion of the Snowflake alliance, the December 2025 appointment of Vaios Makrygiannis as Partner and Transfer Pricing Leader of Deloitte Cyprus, and the February 2026 hire of Mark Roman — former U.S. House Ways and Means staff director — as Deputy Managing Principal of the Tax Policy Group, with each move deepening the firm's data, geographic, and regulatory advisory capabilities respectively.

Name

Deloitte Tax

Legal name

Deloitte Touche Tohmatsu Limited

Website

https://www2.deloitte.com

Company type

Private

Founded year

1845

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Deloitte Tax is the US tax services practice of the Big Four Deloitte network, providing business tax, international tax, transfer pricing, M&A tax, multistate tax, and tax technology consulting to Fortune 500 enterprises, multinationals, and government agencies.

Ownership category

akta.pro rank

Product category

Tax Advisory Services

NAICS

Accounting, Tax Preparation, Bookkeeping, and Payroll Services (5412), Tax Preparation Services (541213)

SIC

Services-Legal Services (8111)

akta.pro primary industry

Transfer Pricing & International Tax Services (BPAHABAI)

akta.pro secondary industries

Transfer Pricing Valuation & Intercompany Pricing Support (BPAHANAK), Tax Valuation & Transfer Pricing Support (409A, estate/gift, intercompany) (FSAEAHAC), Payroll & Employment Tax Services (BPAHABAD), Excise, VAT/Sales Tax & Indirect Tax Administration (BPAIADAH), Revenue Systems, E-Filing & Digital Tax Administration (BPAIADAO), Tax Policy, Legislation & Rulings (BPAIADAA)

Keywords

• Tax advisory services
• Professional services
• Transfer pricing
• International tax
• Tax compliance

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Tax Services: Comprehensive tax advisory including direct tax, indirect tax, international tax, transfer pricing, multistate tax, Washington National Tax, global employer services, and tax technology consulting. Revenue generated through professional service engagements billed at hourly rates or project fees.
2. Consulting Services: AI & Engineering, Business Process Solutions, Customer, Cyber, Enterprise Performance, Human Capital, M&A and Restructuring, Operate, Regulatory Risk & Forensic, Strategy & Transactions, and Sustainability consulting services. Billed as professional service engagements.
3. Audit & Assurance: Audit services, assurance, accounting controls & reporting advisory, and specialized assurance & sustainability services for attest clients.
4. Deloitte Private: Private company services including financial advisory, technology, and operations support for privately held businesses.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Deloitte Tax provides comprehensive tax preparation and advisory services to large enterprises and multinational corporations. The offering portfolio spans direct tax, indirect tax, international tax, transfer pricing, multistate tax, Washington National Tax, global employer services, and tax technology consulting. Services are delivered as professional engagements billed at hourly rates or project fees through a global network of member firms.

Product overview

Deloitte Tax is a comprehensive suite of tax advisory services organized as a portfolio of specialized offerings. The portfolio includes Business Tax Services, Washington National Tax, Multistate Tax, National Federal Tax Services, International Tax, Transfer Pricing, and Mergers & Acquisitions Tax as core tax service offerings; Global Employer Services (encompassing GES Mobility and GES Reward) for employer-related tax and mobility matters; Indirect Tax for GST/VAT; Legal Business Services for contract and entity management; Tax Technology Consulting for digital tax transformation; and Business Process Solutions for outsourced tax and finance processes. Together, these service lines provide end-to-end tax coverage from compliance and consulting to technology and transaction support.

Differentiator

Problem solved

Functional benefit

Brands

• Washington National Tax: Deloitte's federal tax policy and legislative advisory practice based in Washington D.C.
• IndustryAdvantage™
• Deloitte Insights
• Deloitte Digital
• Deloitte Private
• Center for Health Solutions

Products and services

• Business Tax Services Provides federal, state, and local tax services for large businesses, including tax compliance, planning, and consulting.
• Washington National Tax Offers federal tax policy analysis, regulatory guidance, and strategic tax planning services to help clients navigate complex tax legislation.
• Multistate Tax Services Delivers state and local tax services, including compliance, controversy, and planning for multistate businesses.
• International Tax Offers cross-border tax planning, transfer pricing, and international tax compliance services for global operations.
• Transfer Pricing Provides transfer pricing advisory, documentation, and controversy services for intercompany transactions.
• Mergers & Acquisitions Tax Delivers tax due diligence, structuring, and integration services for M&A transactions and restructuring.
• Global Employer Services Provides global mobility, payroll, and immigration services, including GES Mobility and GES Reward sub-services.
• Indirect Tax Offers GST, VAT, and other indirect tax compliance, advisory, and controversy services.
• Legal Business Services Provides contract lifecycle management, legal entity management, and legal management consulting services.
• Tax Technology Consulting Offers technology-enabled tax transformation, data management, and digital tax solutions.
• Business Process Solutions Provides outsourced tax and finance process services, including tax compliance and reporting.
• National Federal Tax Services Provides comprehensive federal tax services including audit defense, tax accounting, and regulatory compliance for large corporations.
• Direct Tax Direct tax compliance and advisory services covering corporate income tax obligations and reporting.

Quantifiable outcome

• 23% year-over-year growth in competition participation
• +1 more outcomes

Named customers4 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

AI capability2 records

Feature3 records

Partnerships

Eight partnerships are on record, tiered core.

• SnowflakecoreTechnology or Integration · 3 November 2025Expanded strategic alliance between Deloitte Tax and Snowflake to enhance tax data management solutions. Focuses on cloud modernization challenges, standardized reporting, and GenAI data readiness. Development of unified tax data models, improved reporting accuracy, and AI-driven analytics for clients.
• AWScoreTechnology or IntegrationTechnology alliance partnership for cloud services and integrated solution delivery across enterprise clients
• GooglecoreTechnology or IntegrationStrategic alliance for AI, cloud, and digital transformation services
• OraclecoreTechnology or IntegrationEnterprise technology partnership for Oracle ERP solutions and integrated consulting services
• SalesforcecoreTechnology or IntegrationStrategic alliance for customer relationship management and digital transformation
• SAPcoreTechnology or IntegrationEnterprise software partnership for SAP solutions implementation and consulting
• ServiceNowcoreTechnology or IntegrationStrategic alliance for enterprise workflow automation and digital transformation services
• WorkdaycoreTechnology or IntegrationStrategic alliance for financial and human capital management solutions

Scale indicators4 records

Recent moves5 records

Expansion highlights6 records

Direct peers

• Grant Thornton: Grant Thornton's tax practice serves large private and public mid-market companies with international tax, transfer pricing, and state and local tax services — directly competitive with Deloitte Tax in the mid-market enterprise segment.
• EY Tax: EY's global tax function is the closest direct competitor to Deloitte Tax, with comparable service breadth including international tax, transfer pricing, indirect tax, and dedicated Washington/Brussels policy practices serving the same enterprise client segment.
• KPMG Tax: KPMG's tax practice is the fourth Big Four peer, providing transfer pricing, international tax, and corporate tax advisory to large multinational and mid-market enterprise clients with a comparable go-to-market and service model.
• BDO USA: BDO's tax practice is a direct peer focused on mid-market and large private companies, with overlapping services in international tax, transfer pricing, and state and local tax — competing for many of the same Deloitte Private segment clients.
• RSM US: RSM's tax practice is a direct peer serving middle-market companies, with comparable services in federal, state, international tax, and transaction tax — competing with Deloitte in the mid-market and Deloitte Private segments.
• Baker McKenzie: Baker McKenzie's tax practice is a leading global legal tax advisor competing directly with Deloitte Tax in international tax structuring, transfer pricing, and cross-border M&A tax for multinational clients.
• PwC Tax: PwC's global tax practice is one of the Big Four direct peers to Deloitte Tax, offering nearly identical service lines (international tax, transfer pricing, M&A tax, Washington tax policy) to overlapping Fortune 500 and multinational client bases.

Emerging players

• CBIZ: CBIZ provides tax preparation, planning, and compliance services to mid-market and small enterprise clients, with growing overlap with Deloitte's tax compliance and BPS offerings in the lower-mid market.
• Ryan LLC: Ryan is the largest dedicated property tax firm and competes with Deloitte's state and local tax practice, with growing overlap in indirect tax and credits & incentives advisory for enterprise clients.
• Alvarez & Marsal Tax: A&M's tax practice is a specialized competitor with strong overlap in transaction tax, transfer pricing, and tax controversy, particularly for distressed and restructuring scenarios — a meaningful emerging alternative to Deloitte for complex mandates.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat7 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/deloitte

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Deloitte Tax