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Business Details
37 Years
experience
Trusted Accounting Services in Overland Park, KS
Thill & Leonard CPAs has been dedicated to providing exceptional accounting and tax services since its founding in 1989. Our firm is built on a foundation of quality service, client-focused relationships, and community involvement. With decades of combined experience, we specialize in serving individuals and businesses across diverse industries, including real estate, healthcare, nonprofit, and technology sectors. Our team of certified professionals brings deep expertise in tax planning, financial compliance, and strategic consulting. We prioritize personalized solutions tailored to each client's unique needs while maintaining the highest standards of professionalism and integrity.

Our reputation, built through consistent client satisfaction and referrals, reflects our commitment to excellence. We actively engage in local initiatives and professional development to better serve our clients and contribute to the communities we operate in. Our long-standing presence in the Kansas City area underscores our dedication to fostering lasting partnerships with both clients and the community.
Services
Tax Preparation Accounting Support Estate Returns Business Tax Services Quarterly Write-Up
Details
  • Year established: 1989
Highlights and features
  • We offer over 35 years of combined experience in accounting and tax services.
  • Our team specializes in serving niche industries like real estate and healthcare.
  • We provide personalized financial solutions tailored to individual client needs.
  • Our reputation is built on 100% client satisfaction and professional referrals.
  • We maintain deep community involvement through local initiatives and partnerships.
Services
Tax Preparation
We prepare federal, state, and local income tax returns for individuals and businesses. Our expertise includes estate, trust, and complex tax scenarios. With specialized knowledge of Kansas City business regulations, we ensure compliance and maximize deductions.
Accounting Support
Our accounting support covers monthly/quarterly write-ups, department oversight, and tax compliance. We assist businesses with financial reporting and strategic planning. Our team provides tailored solutions for companies in real estate, healthcare, and technology sectors.
Estate Returns
We handle estate and trust tax filings for personal representatives. Our service includes calculating tax liabilities and ensuring proper documentation. We work with families during estate transitions to maintain compliance with federal and state regulations.
Business Tax Services
We provide comprehensive business tax preparation for corporations and partnerships. Services include annual returns and audit support. Our team understands industry-specific requirements for real estate developers and nonprofit organizations in Kansas City.
Quarterly Write-Up
Our quarterly accounting services maintain accurate financial records throughout the year. We process transactions and generate management reports. This proactive approach helps small businesses in the Kansas City area make informed financial decisions.
People
Mark Thill
Partner
Mark Thill founded the firm in 1989 after working with major accounting firms. He specializes in tax and consulting services for small businesses and individuals, leveraging 35+ years of experience in public accounting.
Debbie Leonard
Partner
Debbie Leonard, a licensed CPA with 30+ years of experience, specializes in audit, tax, and business consulting. She previously served as CFO for a real estate developer and brings expertise in commercial investment management as a CCIM holder.
Steven Thill
Staff Accountant
Steven Thill combines experience from the IRS and corporate finance sectors. He joined the team in 2014, offering expertise in tax compliance and accounting for individuals and businesses through multiple industry perspectives.
Sheila Thill
Office Manager
Sheila Thill manages client relations and office operations with 25+ years of experience in administrative roles. She has served in this capacity since 2005, overseeing scheduling and inter-office communication for the firm.
Anna Crenwelge
Staff Accountant
Anna Crenwelge joined as a full-time accountant in 2009 after working with major accounting programs. A licensed CPA since 2017, she provides accounting and tax services to individuals and businesses in Kansas City.
Questions
What accounting services do you offer for small businesses?
We provide tax preparation, quarterly write-ups, and financial reporting services for small businesses across industries like real estate, healthcare, and nonprofit sectors.
Do you specialize in any particular industries?
Yes, we specialize in real estate development, healthcare practices, nonprofit organizations, and technology startups through our 35+ years of local Kansas City experience.
Can you handle estate and trust tax filings?
Yes, we prepare estate and trust tax returns while providing guidance for personal representatives navigating complex probate tax requirements.
What experience do your accountants have?
Our team includes CPAs with decades of experience from major firms and corporate roles, including work with Fortune 500 clients and the IRS tax division.
Do you offer tax planning services?
Yes, we provide tax planning strategies for individuals and businesses to optimize deductions and ensure year-round compliance with federal and state regulations.