O'Brien FitzGerald Taylor & Keaveney, PC is a CPA firm in Waltham, Massachusetts, serving clients throughout the greater Boston area. The firm works with individuals, businesses, and not-for-profit organizations on tax, accounting, and broader financial guidance needs.

Its services range from tax management and accounting to audits, financial statements, and financial planning. The firm also provides online tax and financial resources, including downloadable forms and publications, financial calculators, tax tips, due-date information, and financial guides. O'Brien FitzGerald Taylor & Keaveney, PC has been in practice since 1919, with its public materials emphasizing long-standing client relationships and careful analysis.