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Mars UK • USA-New Jersey-Hackettstown | USA-Illinois-Chicago | United States of America

Tax Manager- Compliance and Reporting

Employment type:  Full time
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Job Description

Job Description:

Key Responsibilities

1. Tax Accounting and Reporting

  • Monitor changes in tax laws and accounting standards; assess impact on the company
  • Lead the preparation and review of quarterly and annual income tax provisions (ASC 740), including current and deferred tax calculations
  • Manage US GAAP income tax provisions and FIN 48 positions for domestic corporation, domestic and foreign partnerships, foreign corporations and disregarded entities
  • Review and validate effective tax rate (ETR) and balance sheet (payable, deferred tax) calculations
  • Coordinate with external auditors during quarterly reviews and annual audits

2. Tax Compliance

  • Manage the preparation, review, and filing of federal, state, and local income and franchise tax returns
  • Oversee the tax compliance calendar to ensure all deadlines are met
  • Coordinate with external tax advisors and service providers as needed
  • Review and validate supporting workpapers and documentation for tax filings

3. Additional Responsibilities

  • Continuously evaluate the effectiveness of tax support processes and proactively recommend improvements to enhance efficiency within the tax department
  • Be skilled in relationship building, nurturing team member strengths and identifying areas for improvement
  • Ability to influence stakeholders; represent and advocate for team needs
  • Provide tax advice and support to business units on various tax matters including Federal and State concerns, W-9 requests, local exemption forms

Qualifications and Skills

  • Bachelor’s degree in Accounting, Finance, or related field; CPA or equivalent certification preferred
  • Minimum of 5 years of experience in corporate tax; Federal and state U.S. income tax compliance and financial statement accounting
  • Large corporate multinational tax environment experience
  • Demonstrated project management skills with the ability to execute initiatives from beginning to completion
  • Excellent analytical, organizational, and communication skills
  • Proficiency in tax software and Microsoft Office Suite. Experience in data analytic systems (Alteryx, Power Query, Power BI) preferred

The base pay range for this position at commencement of employment is between the range listed below, however, base pay offered may vary depending on multiple individualized factors, including but not limited to job-related knowledge, skills, and experience. The total compensation package for this position will include variable pay, medical and dental benefits, participation in 401k plan, and paid time off benefits. Details of participation in these benefit plans will be provided if an applicant receives an offer of employment.

The pay range shown is applicable to all US locations listed within the job posting:USD 0.00 - USD 0.00

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Company benefits

Open to part-time employees
Open to job sharing
Open to compressed hours
Sabbaticals
Enhanced maternity leave – 26 weeks at 90% pay
Enhanced paternity leave – 26 weeks at 90% pay
24 days annual leave + bank holidays
“Pawternity” leave
Pregnancy loss leave
Bank holiday swaps
Shared parental leave
Adoption leave
Family health insurance
Pregnancy support
Neonatal leave
Faith rooms
Meditation space
Dog friendly office
Dog friendly co-working space
Annual bonus
Employee discounts
Cinema discounts
Referral bonus
Joining bonus
Cycle to work scheme
Electric Car Salary Sacrifice
Enhanced pension match/contribution
Theme park discounts
Lunch and learns
In house training
Learning license
Studying sabbaticals
Open to part time work for some roles

Working at Mars UK

Company employees:

4,000 In the UK

Gender diversity (m:f):

57:43

Hiring in countries

Argentina

Australia

Austria

Belgium

Brazil

Bulgaria

Canada

China

Czechia

Denmark

Estonia

France

Germany

Awards & Accreditations

1st - Most Family Friendly Company

1st - Most Family Friendly Company

Flexa awards 2026
3rd - Best Workplace Benefits

3rd - Best Workplace Benefits

Flexa awards 2026
Most loved - Large companies

Top 5 - Most loved - Large companies

Flexa awards 2026
Best Work-Life Balance

Top 10 - Best Work-Life Balance

Flexa awards 2026
1st - Most Family Friendly Company

1st - Most Family Friendly Company

Flexa awards 2025
2nd – Pet Friendly

2nd – Pet Friendly

Flexa awards 2025
Most Flexible Company

Top 5 - Most Flexible Company

Flexa awards 2025
Most Inclusive Company

Top 5 - Most Inclusive Company

Flexa awards 2025
Best Work-Life Balance

Top 10 - Best Work-Life Balance

Flexa awards 2025
Best Career Progression

Top 10 - Best Career Progression

Flexa awards 2025
Best Workplace Culture

Best Workplace Culture

Flexa awards 2025
Best Workplace Benefits

Best Workplace Benefits

Flexa awards 2025
1st – Large companies

1st – Large companies

Flexa100 2024
Consumer Goods

Consumer Goods

Industry awards 2023
3rd – Large companies

3rd – Large companies

Flexa100 2023
Retail & Ecommerce

Retail & Ecommerce

Industry awards 2022

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