Steve W. Sier, CPA is an accounting firm and tax practice located in Mount Airy, MD. With decades of experience in the accounting business, we are dedicated to helping you improve your business or household finances with tax and accounting services. Whether you are preparing for tax day or starting a business, you can count on us to provide you with the financial assistance you need. Choose Steve W. Sier, CPA for professional guidance for your personal and business finances.