All Tax and Bookkeeping

About us

Our company still adheres to the same values upon which it was founded: honesty, integrity and a steadfast commitment to the satisfaction of each and every client we serve.

Greta Horan founded All Tax in 1989, working in a small office on the corner of Stanley and Ferry Streets in Niagara Falls.

With her business growing, Greta moved to a larger location on Main Street in 1996 and enlisted the expertise of her daughter Darlena Costello to head up a new bookkeeping division. Before long two of Darlene's daughters also joined the team, and they've since become trusted experts in their own right.

Greta left us in 2005, but in the years since Darlena has overseen a period of continued growth: now located in a large office at 5990 Main Street, All Tax and Bookkeeping has eight employees and - in addition to expert tax service - we also handle more than 30 on- and off-site payroll and bookkeeping accounts.