Advanced Accounting & Tax Solutions is a tax and accounting firm in Downey, CA serving individuals, small businesses, and businesses. The firm provides support for tax preparation, tax planning, accounting, bookkeeping, payroll, and new business formation, with services available in person and remotely.

Its service mix includes practical help for business startup needs, small-business finance, IRS notice or audit matters, and ongoing accounting workflows. The firm also lists QuickBooks services and a secure online client portal, giving clients a way to access parts of the accounting process online.

Fernando Calderon is identified as the firm owner and a CPA. The profile source describes the firm as focused on personalized support and follow-through for both business and personal tax and accounting needs.