JAG CPA & Associates, Inc. is a full-service CPA firm serving individuals and small businesses throughout Hampstead, Derry, and the greater southern New Hampshire and northern Massachusetts area. Led by Jonathan A. Giegerich, CPA, MST, our firm provides accurate, timely tax preparation, bookkeeping, and financial guidance you can rely on year-round — not just during tax season.

What We Do

Tax Preparation & Planning

We prepare individual and business tax returns with an eye toward minimizing what you owe, not just filing on time. Our tax planning services help you make decisions throughout the year that reduce your tax burden before April arrives.

Bookkeeping & Accounting

Accurate books are the foundation of every good business decision. We handle recordkeeping, reconciliations, and financial statement preparation so you always know where your business stands.

Business Advisory Services

From business valuation to succession planning, we help business owners in Hampstead and the surrounding area make informed decisions about the future of their company.

Why Work With Us

• Over 30 years of combined public accounting experience serving southern NH and northern MA

• Led by a CPA with a Master's in Taxation (MST) from Suffolk University

• Responsive and direct communication

Have a question about your taxes or your business finances? Call 603-893-0594

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