KnowTax provides tax and accounting support for clients in Plattsburgh. Its listed services include tax preparation for individual, business, corporate, estate, trust, and not-for-profit returns, along with accounting, bookkeeping, and payroll.

The firm also supports small businesses with business consulting and entity selection, including new business formation needs. Source material describes its work as using cloud-based solutions for tax, payroll, bookkeeping, and business formation, with remote availability noted in the provided profile facts.