William P. Connor, CPA LLC is a CPA firm in Manchester, NH serving small businesses and individuals with accounting, tax, and advisory support. The firm’s work includes personalized accounting services, tax preparation, tax planning, and help with IRS notices and audit matters.

For business clients, the firm supports small business accounting, payroll services, new business formation, business tax preparation, outsourced accounting, and CFO-style oversight. Its services are positioned for clients who need practical financial organization, tax compliance support, and ongoing advisory help without relying on a broad internal finance team.