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Business Details
50+ Years
experience
Your Trusted Accounting Partner in Southampton, NY
Established in 1956, we are one of Eastern Long Island's oldest accounting firms, dedicated to providing exceptional financial services to individuals and businesses. Our team of certified professionals brings decades of experience in tax planning, accounting, and advisory services tailored to diverse sectors including family-owned businesses, nonprofits, real estate developers, and private clubs. We prioritize personalized service, leveraging advanced technological capabilities to address the unique financial challenges of our East End community. Our commitment to long-term client relationships is rooted in integrity, expertise, and a deep understanding of local tax dynamics.

We offer comprehensive solutions such as business consulting, audit assurance, estate planning, and specialized support for condominiums and cooperatives. With a focus on proactive tax strategies and year-round client engagement, we help clients navigate evolving fiscal regulations while safeguarding their financial interests. Our firms philosophy centers on community involvement and delivering actionable insights that empower clients to achieve their commercial and personal financial goals.
Services
Individual and Business Taxes Condominiums and Co-Operatives Estate Trust and Tax Planning Not-For-Profit Organizations Accounting & Assurance
Details
  • Year established: 1956
Highlights and features
  • We have over 65 years of experience in accounting and tax services.
  • Our team specializes in East End-specific tax and financial challenges.
  • We offer tailored solutions for nonprofits, real estate, and private clubs.
  • Our services include year-round tax planning and audit assurance.
  • We prioritize personalized service with advanced technological capabilities.
Services
Individual and Business Taxes
Our tax department provides strategic advisory services to minimize tax liability while maximizing profits and cash flow for businesses and individuals. We specialize in corporate tax structure, QuickBooks advisory, retirement planning, and high-net-worth tax strategies. Our year-end tax planning ensures clients stay compliant with evolving tax codes.
Condominiums and Co-Operatives
We offer tailored financial services for condominiums, co-ops, and homeowners associations, including audited financial statements, tax return preparation, and internal control evaluations. Our team collaborates with boards to enhance operational efficiency and ensure compliance with reporting requirements specific to Eastern Long Island communities.
Estate Trust and Tax Planning
We help clients develop strategies to minimize estate and gift taxes while preserving assets. Services include creating wills, healthcare proxies, and durable powers of attorney, alongside personalized guidance for high-net-worth individuals navigating complex tax rules on Eastern Long Island.
Not-For-Profit Organizations
Our specialized department supports nonprofits, private clubs, and foundations with audits, tax filings (e.g., Form 990), and internal control recommendations. We provide year-round advisory services to ensure compliance with regulatory requirements and improve financial operations for organizations on the East End.
Accounting & Assurance
We deliver three levels of accounting servicescompilations, reviews, and auditsto businesses, individuals, and nonprofits. Our assurance services include internal control evaluations, cash flow analysis, and succession planning, ensuring accurate financial reporting and strategic business growth support.
People
Thomas E. Oplinger
CPA
Thomas E. Oplinger brings decades of accounting expertise to Sabel & Oplinger, focusing on tax planning and financial consulting for East End clients. He prioritizes personalized service and community engagement.
Robert J. Strebel
CPA
Robert J. Strebel specializes in audit assurance and advisory services, supporting businesses and nonprofits with strategic financial solutions tailored to Eastern Long Island's unique needs.
Meg Wernersbach
EA
Meg Wernersbach, an Enrolled Agent, provides expert tax preparation and planning services, ensuring compliance and optimizing financial outcomes for individuals and businesses in the region.
Questions
What services does Sabel & Oplinger offer?
We provide tax preparation, estate planning, audit services, and financial consulting for individuals, businesses, and nonprofits on Eastern Long Island.
How long has the firm been in operation?
Sabel & Oplinger has served the East End community since 1956, offering over 65 years of accounting and advisory expertise.
Do you specialize in local tax issues?
Yes, we focus on East End-specific tax challenges, including real estate, nonprofit compliance, and state-specific filings.
What industries do you serve?
We work with family-owned businesses, real estate developers, condominiums, nonprofits, private clubs, and high-net-worth individuals.
Can you assist with nonprofit accounting?
Yes, we offer audits, tax filings (e.g., Form 990), and internal control evaluations tailored to nonprofit organizations and foundations.