Tax Counsel - Controversies & SALT

Interactive Brokers Group; Greenwich (CT); Hybrid; USD 180,000 - 240,000; Full time

Benefits offered by this job

Competitive salary

Stock grants

401(k) retirement plan

Health benefits

Parental leave

Lunch allowance

Job summary

Interactive Brokers Group, Inc. seeks a Tax Counsel with deep expertise in SALT and tax controversy to join our Global Tax Team.

You will manage federal, state, and international audits and disputes, coordinate with outside counsel, and advise on nexus, apportionment, and tax positions across jurisdictions. The role requires a JD with strong research, writing, and negotiation skills; CT/NY bar is preferred.

Qualifications

• Minimum 7-8 years of experience in tax controversy with emphasis on U.S. state & local tax.
• J.D. is required; LL.M. in Taxation is a plus.
• Admission to at least one U.S. state bar; Connecticut or New York bar preferred.
• Deep expertise in state & local tax law, nexus, apportionment, allocation for financial services.
• Strong knowledge of federal tax controversy procedures, audits and litigation.
• Excellent legal research, writing, and negotiation skills.
• Strong business and communication skills with ability to relate tax issues to non-tax personnel.

Responsibilities

• Manage all aspects of U.S. federal, state, and foreign tax controversies, audits, and disputes.
• Lead state and local tax audits across multiple jurisdictions; negotiate with authorities.
• Develop audit defense strategies and respond to IDRs and notices.
• Coordinate with outside counsel and tax advisors on controversy matters.
• Support IRS examinations and appeals; participate in conferences.
• Collaborate with international tax colleagues on foreign tax matters.

Skills

Tax controversy

State & Local Tax (SALT)

Legal research

Negotiation

Communication

Education

J.D.

LL.M. in Taxation (preferred)

Tools

MS Excel

Job description

Posted Tuesday, July 14, 2026 at 10:00 AM

Interactive Brokers Group, Inc. (NASDAQ: IBKR), a member of the S&P 500, is a global financial services company headquartered in Greenwich, Connecticut, with offices in over 15 countries. Through its affiliates, Interactive Brokers provides automated trade execution and custody of securities, commodities, foreign exchange, and prediction markets on over 170 markets in numerous countries and currencies.

For more than four decades, Interactive Brokers has focused on technology, automation, and innovation to provide clients worldwide with a sophisticated, unified platform to manage their investment portfolios. We serve individual investors, hedge funds, proprietary trading groups, financial advisors, and introducing brokers.

Our culture is driven by problem-solving, efficiency, and continuous improvement. We look for individuals who are intellectually curious, collaborative, and motivated to contribute to technology that helps simplify and enhance access to global financial markets. Interactive Brokers has consistently been recognized as a top broker by respected industry sources including Barron's, Investopedia, Stockbrokers.com, and others.

This is Hybrid role (4 days in office /1 day remote)

Role Overview

The Interactive Brokers Global Tax Team serves an important role in the success of our business. We mitigate risk and create value for our business and our customers. We partner with many functions across the company, including Accounting, Treasury, Technology, Customer Service and Marketing, to assist our business in achieving our commitment of delivering value through technological innovation and providing our clients with unprecedented access to global markets at the lowest cost. The Global Tax Team sets the tax policy for the company, identifies, develops, implements, and manages tax strategies to help minimize our overall tax cost. We advise on the U.S. and international tax aspects of our product offerings to customers, manage tax audits, and ensure financial reporting and tax returns are filed timely and accurately.

We are looking for a Tax Counsel with deep expertise in tax controversy management and U.S. state and local taxation to join our rapidly growing Global Tax Team. The person will serve as the primary legal resource for managing federal, state, and foreign tax audits, disputes, and litigation, with a particular emphasis on state and local tax (SALT) controversies across multiple jurisdictions. The person will have extensive interface with key tax personnel, non-tax business executives, external counsel, and government tax authorities. A successful candidate will need to be a collaborative team player who is entrepreneurial, detail-oriented, an excellent communicator, and a skilled advocate and negotiator.

Responsibilities

Tax Controversy Management - Primary Focus

• Serve as the primary legal advocate for managing all aspects of U.S. federal, state, and foreign tax controversies, audits, and disputes
• Lead and manage state and local tax audits across multiple jurisdictions, including correspondence, negotiations, and advocacy before state and local tax authorities
• Develop and execute audit defense strategies, including preparation of responses to information document requests (IDRs), notices of proposed adjustments, protests, and administrative appeals
• Assess litigation risk and make recommendations to senior management on settlement versus litigation strategies
• Coordinate and manage outside counsel and tax advisors engaged in tax controversy matters
• Support IRS examination and appeals proceedings, including preparation of protest letters and participation in appeals conferences
• Assist with managing foreign tax controversies in coordination with international tax colleagues and outside counsel
• Maintain a comprehensive tracking system for all open tax audits, disputes, and litigation matters across all jurisdictions
• Coordinate with the tax compliance and accounting teams to ensure audit findings and settlements are properly reflected in tax returns and financial statements, including uncertain tax positions under ASC 740-10

State and Local Tax ("SALT") Advisory

• Develop and maintain deep expertise in state and local tax laws, regulations, rulings, and case law across jurisdictions relevant to IBKR
• Advise on SALT implications of business activities and transactions, including nexus analysis, apportionment, and allocation issues specific to financial services and technology companies
• Monitor legislative, regulatory, and judicial developments in SALT and assess their impact on IBKR's tax positions and compliance obligations
• Identify and evaluate SALT planning opportunities to minimize IBKR’s overall state and local tax burden
• Partner with the tax compliance team to provide technical guidance on state and local tax return positions

Legal Research, Documentation & Collaboration

• Perform legal research on federal, state, and foreign tax controversy issues and deliver well-reasoned legal conclusions
• Draft legal memoranda, technical position papers, and protest letters to document legal conclusions and tax positions
• Partner with the broader Global Tax Team on tax controversy implications of business activities and transactions
• Collaborate with Legal, Compliance, and Accounting teams on matters that intersect with tax controversy issues
• Assist with research, development, and integration of new tax technologies, including controversy management tools and automation
• Support Internal Audit/Risk Reviews and work on special projects as needed

Qualifications, Skills & Attributes

Required:

• Minimum of 7-8 years of experience in tax controversy with significant focus on U.S. state and local tax, at a nationally recognized law firm, Big 4 accounting firm, or in-house
• J.D. is required; LL.M. in Taxation is plus
• Admission to at least one U.S. state bar; ability to be admitted to the Connecticut or New York bar preferred
• Deep expertise in U.S. state and local tax law, including corporate income and franchise tax, nexus standards, apportionment and allocation methodologies for financial services companies, and unitary business principles
• Strong knowledge of tax controversy procedures at both the state and federal level, including audit management, administrative appeals, and litigation procedures
• Solid foundation in U.S. federal income tax law, including Subchapter C, Subchapter K, and financial products
• Working knowledge of uncertain tax positions and ASC 740-10 financial statement implications
• Excellent legal research, writing, and negotiation skills
• Strong business and communication skills with ability to effectively relate tax issues to non-tax personnel
• Advanced MS Office skills, particularly MS Excel
• Strong commercial and business awareness

Preferred:

• Prior experience with multistate tax issues specific to financial institutions, broker-dealers, or securities firms
• Experience managing foreign tax controversies in coordination with international tax colleagues
• Familiarity with financial products taxation at the state and federal level, including treatment of derivatives, securities lending, and investment income
• Knowledge of local taxes (New York City and other municipal taxes)
• Experience managing outside counsel on tax controversy matters
• Familiarity with tax technology platforms and controversy management tools

Company Benefits & Perks

• Competitive salary, annual performance-based bonus, and stock grant awards
• 401(k) retirement plan with competitive company match
• Excellent health and wellness benefits, including medical, dental, and vision benefits. 100% employer-paid medical premiums, with generous employer contributions to dental & vision plans as well.
• Wellness screening and assessments, health coaches, and counseling services through an Employee Assistance Program (EAP)
• Generous paid parental leave (up to 16 weeks paid parental leave for eligible employees)
• Company-paid basic life insurance, accidental death & dismemberment (AD&D), and short- and long-term disability coverage
• Flexible Spending Accounts (Healthcare, Dependent Care, and Commuter FSAs)
• Quarterly fitness stipend to offset costs associated with traditional gym and fitness memberships or fees
• Education reimbursement and professional development opportunities
• Legal services, telehealth access, and voluntary insurance options
• Backup child and adult care support through Care.com
• Daily lunch allowance and fully stocked kitchen with healthy breakfast and snack options