SIR Accounting & Tax works with small businesses and individuals. From a complex tax return to accounting needs, SIR can help. We’ll save you time and money.

Sonia I. Rosa, MBA, CPA


Sonia Rosa founded SIR to assist small businesses and individuals with their financial needs. She has more than 15 years’ experience in finance, accounting, and auditing. Sonia is a certified public accountant (CPA) and holds a master’s in business administration (MBA). In her spare time, she enjoys playing tennis, running, and the great outdoors. Additionally, she makes it a priority to volunteer in her community and spend time with family.

Giving Back

Sonia is a military spouse. Her husband has been in the Army for 25-years. She enjoys helping military and veteran-owned businesses.

“Sonia Rosa gave my step-by-step guidance on how to file my taxes as a single-owned LLC. She also educated me on the Military Spouse Relief Act which saved me hundreds of dollars. Tax season was a breeze with Sonia on my side.” – Michele

I’ll be happy to explore how can I help you