About Ameren Services (B&CS) Ameren Services provides administrative support and services to Ameren Corporation and its operating companies, subsidiaries and affiliates. Ameren Services includes a wide range of skill sets and roles, from finance and legal experts to digital and cyber specialists, plus those charged with ensuring environmental compliance and operational safety. Together, we help execute a strategy that enables Ameren to deliver superior long-term value to customers, shareholders and the environment. Our benefits include: • Medical coverage on date of hire • 100% employer paid cash balance pension plan • 401(k) with company match fully vested on date of hire • Minimum of 15 days paid vacation and 12 paid holidays • Paid parental leave and family caregiver leave Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees. ​ About The Position The Tax Specialist will assist with various income tax and non-income tax assignments which will include research, tax planning, monthly/annual compliance duties and special projects. This position will receive general supervision. Key responsibilities include: • Support income tax diligence and compliance for renewable energy tax credits. • Assist with non-income tax compliance. • Assist in the preparation of the miscellaneous monthly journal entries. • On a monthly basis, review sales tax on vendor invoices from Ameren purchases. • Able to complete tax research projects. • Assist with income tax planning. • Additional responsibilities related to special projects as assigned. • Assist in addressing tax questions from various business teams as required. • Assist in memo writing and other communications in support of various ongoing projects. Qualifications - Tax Specialist Bachelor’s degree in Accounting, Finance or Business Administration from an accredited college or university required. Three or more years of tax experience at a professional level in a public accounting firm, corporate tax department or government agency required. MBA or Master’s level degree (Master’s in Accounting, Finance, or Master of Taxation) or CPA preferred. Experience in regulated utility tax accounting preferred. Qualifications - Senior Tax Specialist Bachelor’s Degree in Accounting, Finance or Business Administration from an accredited college or university required. One of the following required: A Master’s level degree (MBA, Master’s in Accounting, Finance, or Taxation), or CPA. Five or more years of tax, accounting, auditing or finance required. In addition to the above qualifications, the successful candidate will demonstrate: Proficiency in Microsoft Excel, Word, PowerPoint, and Outlook required. Experience with Oracle, PowerPlan/PowerTax and OneSource software products preferred. Strong written and verbal communication skills required. Ability to work in a fast-paced deadline driven environment required. Ability to handle multiple competing priorities at a time required. Proficiency in the Ameren competencies: Think Customer, Engage Respectfully, Foster Collaboration, Deliver Results, Continuously Improve, and Be Strategic Additional Information Ameren’s selection process includes a series of interviews and may include a leadership assessment process. Specific details will be provided to qualified candidates. #LI-Hybrid Compensation Range: $72,600.00 - $140,300.00 * This pay range encompasses multiple levels of the role. Career level and compensation depends upon applicant’s credentials. At Ameren, base salary is one component of a competitive compensation package for employees. Our pay ranges are broad to allow for movement within our organization and to accommodate different skill sets and levels of expertise. We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the base salary offered. Roles are eligible for additional rewards including annual incentive payments based on individual and company performance. If end date is listed, the posting will come down at 12:00 am on that date: Tuesday November 03, 2026 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.