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Your Trusted Partner for Accounting and Tax Services in Oakland
At Iryna Oreshkova, CPA, we specialize in delivering comprehensive accounting, tax, and auditing solutions tailored to dynamic businesses, nonprofit organizations, and individuals. With over 15 years of experience serving the Bay Area and beyond, our team prioritizes personalized relationships, combining technical expertise with a deep understanding of our clients' unique needs. Our services extend beyond basic compliance, focusing on strategic financial planning, tax optimization, and assurance services to help clients minimize liabilities and maximize growth. Led by seasoned professionals with backgrounds at Deloitte and Kaplan University, we uphold the highest standards of integrity and professionalism.

Our commitment to fixed pricing, transparency, and client education ensures predictable, value-driven service. Recognized for excellence through AICPA peer reviews, we provide trusted guidance for nonprofit organizations, high-net-worth individuals, and closely held businesses. By leveraging advanced technology and maintaining memberships in leading industry associations, we deliver efficient, accurate, and forward-thinking financial solutions. Our mission is to build lasting partnerships grounded in trust, enabling clients to navigate complex financial landscapes with confidence and clarity.
Services
Audit Services Tax Preparation Assurance Services Nonprofit Tax IRS Representation Business Advisory Financial Planning Client Portal Secure File Transfer Tax Strategy
Highlights and features
  • We offer 15+ years of experience serving Bay Area businesses and nonprofits.
  • Our team includes AICPA-certified professionals with Big Four firm backgrounds.
  • We provide fixed pricing with no surprises for predictable budgeting.
  • Specialized expertise in nonprofit tax compliance and audit engagements.
  • We maintain the highest AICPA peer review standards for quality assurance.
Associations and certifications
  • AICPA Peer Review Program
  • AICPA
  • California Society of CPAs
Services
Audit Services
Our AICPA-certified audit services ensure financial statements meet regulatory standards through rigorous verification processes. We deliver peer-reviewed assurance that enhances organizational credibility with stakeholders while identifying operational efficiencies. Our team specializes in nonprofit and corporate audit engagements.
Tax Preparation
We prepare complex individual, corporate, and nonprofit tax returns with fixed pricing guarantees. Our experts stay current with evolving tax codes to optimize deductions and ensure compliance. We also provide IRS audit representation and dispute resolution services.
Assurance Services
We offer three assurance levels including audits, reviews, and compilations tailored to organizational needs. Our AICPA peer-reviewed processes verify financial accuracy while providing strategic recommendations for improved reporting and compliance frameworks.
Nonprofit Tax Services
Specialized tax solutions for 501(c)(3) organizations include Form 990 preparation, unrelated business income tax analysis, and grant compliance reporting. We help nonprofits maintain tax-exempt status while optimizing financial operations.
Business Advisory
We provide strategic guidance for business transactions, tax planning, and operational improvements. Our advisory services focus on maximizing asset value, minimizing liabilities, and creating sustainable growth strategies for closely held businesses.
People
Iryna Oreshkova
CPA, Partner
MBA holder with Deloitte experience, teaching background at Kaplan University, and 15+ years serving Bay Area clients. Specializes in nonprofit accounting and small business tax strategy while maintaining AICPA and CalCPA memberships.
Kosty Oreshkov
Enrolled Agent, Tax Partner
Dual master's degree holder in Applied Mathematics and Computer Information Systems. Provides year-round tax representation before the IRS and develops customized tax planning solutions for individual and business clients.
Questions
What accounting services do you offer for nonprofits?
We provide specialized audit, tax compliance, and financial reporting services tailored to nonprofit organizations' unique regulatory requirements.
Do you offer fixed pricing for tax preparation?
Yes, we provide transparent fixed pricing for 75% of returns, with most ranging between $1,200 and $2,500.
How do you handle IRS audits for clients?
Our Enrolled Agent partners represent clients before the IRS and resolve tax disputes with documented compliance strategies.
What technology tools do you provide clients?
Clients access secure portals for document sharing, payment processing, and real-time communication with our team.
What assurance service levels do you provide?
We offer audits, reviews, and compilations, helping clients select the appropriate assurance level based on their needs.