ECA Advisors
Reliable Accounting and Tax Support for Hawaii Businesses
ECA LLP is a Honolulu CPA firm serving Hawaii’s construction and business community with personalized accounting, audit, and tax expertise. Our team combines decades of experience with hands-on service to help Oahu and neighbor island businesses thrive with confidence.
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A local approach to financial clarity
Personalized service from a Honolulu-based CPA firm
As a Hawaii accounting firm, we believe strong relationships create stronger businesses. Our partners work directly with clients year-round—not just at tax time—providing proactive guidance and dependable communication. From contractors managing complex projects to small business owners seeking clarity, we deliver the professional expertise and personal attention that make ECA LLP a trusted partner.
Professional accounting and advisory services
Comprehensive expertise for Hawaii’s business community
Our Honolulu tax and audit services are designed for accuracy, transparency, and growth. Whether you’re meeting lender requirements, preparing for tax season, or improving your financial systems, our CPAs offer the insight you need.
Audit & Assurance
Clear, independent audits and reviews that meet the standards of lenders, bonding companies, and stakeholders.
Tax Preparation & Planning
Accurate Hawaii business tax filings and proactive strategies to reduce liabilities and improve cash flow.
Tax Consulting & Strategy
Year-round, forward-thinking tax planning to minimize liabilities and optimize financial performance.
More than accountants—trusted advisors
Our team is grounded in Hawaii’s values of connection and integrity
ECA LLP is led by experienced CPAs who understand that every number tells a story. We believe in delivering insight, not just reports.
- Direct partner access and ongoing communication throughout the year
- Deep specialization in construction and business accounting across the islands
- Commitment to professional excellence and long-term relationships
Learn more about our firm and how our history in Honolulu has shaped our hands-on approach.
Expertise in Hawaii’s construction industry
Accounting for contractors and construction professionals
As a Hawaii CPA for contractors, ECA LLP provides specialized accounting, audit, and tax services for general contractors, subcontractors, and construction-related businesses across Oahu, Maui, the Big Island, and Kauai. Our team understands the unique challenges of construction accounting—from managing WIP schedules and bonding requirements to navigating Hawaii’s General Excise Tax. We help builders, trades, and developers maintain financial clarity and meet reporting obligations with confidence.
