M&S Accounting Group was built on the belief that small- to mid-sized businesses deserve more than seasonal tax preparation — they deserve reliable financial support, clear communication, and long-term professional partnership throughout the year.
We work with businesses across a wide range of industries by providing organized accounting support, proactive guidance, and practical financial solutions designed to support growth, compliance, and day-to-day operations.
Founder & Managing Director
Clear answers, no jargon, year-round attention.
Mohsen leads M&S Accounting Group, a firm focused on providing accounting, tax, and advisory services for small- to mid-sized businesses and professional practices across the United States.
Before founding the firm with Samira Moshashai, Mohsen spent years working closely with small- to mid-sized businesses — ranging from family-owned retailers to professional service firms — building a reputation for practical guidance, clear communication, and dependable financial support.
He believes small- to mid-sized businesses deserve the same level of financial organization, strategic guidance, and long-term support often reserved for larger companies — not only during tax season, but throughout the year. That philosophy continues to shape the firm’s relationship-driven approach to accounting and advisory services.
Mohsen holds a degree in accounting and is currently pursuing his CPA license. Outside of work, he enjoys spending time with his family and experimenting with new recipes in the kitchen.
Co-Founder & Managing Partner
Organized financial support built around clarity and consistency.
Samira co-founded M&S Accounting Group with Mohsen and oversees the firm’s accounting, bookkeeping, financial organization, and compliance operations. Her thoughtful and detail-oriented approach helps keep client records accurate, reconciliations organized, and reporting deadlines on track.
She believes effective bookkeeping goes beyond maintaining accurate numbers — it gives business owners the financial clarity needed to make informed and confident decisions. For Samira, financial reports should provide a clear and reliable picture of how a business is performing and where it is heading.
Samira brings experience in accounting and financial operations and is currently pursuing her CPA license. Outside of work, she enjoys spending time with her family and helping build a firm centered around long-term client relationships, dependable support, and practical financial guidance.
M&S Accounting Group was built on a simple belief: growing businesses deserve more than seasonal tax preparation.
Before founding the firm, Mohsen Abolfathi and Samira Moshashai saw too many business owners trying to manage important financial decisions without organized bookkeeping, proactive guidance, or dependable year-round support. Many businesses were operating on outdated financial information, missing opportunities for better planning, and approaching tax season without the long-term accounting relationship they truly needed.
They built M&S Accounting Group to provide a more modern, responsive, and relationship-driven approach to accounting and advisory services — one centered on clarity, consistency, communication, and practical financial support tailored to the realities of running a business.
Today, the firm supports small- to mid-sized businesses and professional practices across the United States through bookkeeping, payroll, tax, compliance, and advisory services designed to help clients stay organized, informed, compliant, and financially prepared for growth.
As the firm continues to grow, its philosophy remains the same: provide dependable support, maintain strong client relationships, and help businesses build long-term financial stability with confidence.
More than anything, M&S believes accounting should create clarity — not complexity — and that strong businesses are built on reliable financial foundations and trusted long-term partnership.
Small- to mid-sized businesses deserve the same level of financial organization, guidance, and long-term support often reserved for larger companies — clear communication, dependable service, and a team that truly understands the numbers behind the business. That belief is the foundation of M&S Accounting Group and continues to shape how we support our clients every day.
Mohsen & Samira
Founders
Address
1900 Campus Commons Dr. Suite 100 Reston, VA 20191
Hours
Monday – Friday 9:00 AM – 5:00 PM
