About Tang Advisory
Tang Advisory is a CPA firm providing tax preparation, SOC 2 examinations, and cybersecurity consulting for individuals, small businesses, and technology companies.
Founder-led by George Tang, CPA. Serving tax clients across Oregon and Washington, with SOC 2 and cybersecurity engagements nationwide.
Individual and small business tax returns, with support for investments, equity compensation, freelance income, and rental properties. Understand your filing position and plan for estimated payments and future decisions.
Explore tax servicesIndependent Type I and Type II examinations for SaaS companies responding to customer assurance requirements. Engagements are subject to formal acceptance, independence, competence, staffing, quality-review, and firm-readiness requirements.
Explore SOC 2 examinationsA separately scoped assessment identifies factual gaps against agreed criteria. Management retains responsibility for control decisions and implementation; performing both readiness and an examination requires an independence evaluation.
See the SOC 2 processPractical support for cloud security, security posture assessments, and control questions. Define the scope and deliverables with a CPA whose background includes hands-on cloud security engineering.
Discuss your security needsGeorge Tang is your direct contact throughout the engagement. Questions reach the professional responsible for the work, with communication expectations established in the engagement letter.
George brings experience from PwC, Coalfire, and AWS. That background connects audit discipline with an understanding of how cloud systems actually work.
George has held a Washington CPA license since May 2014 and was granted Oregon licensure in February 2026. Firm and individual license numbers are published below for independent verification.
Tax preparation uses flat fees based on complexity, with payment collected upfront. You receive your quote during the consultation so you can decide whether the engagement fits your needs.
At Coalfire, George served as lead assessor on SOC 2 examinations for major cloud providers; at AWS, he built and secured cloud infrastructure. This combines examination experience with practical engineering context.
I started my career at PwC, then served as a lead assessor at Coalfire on SOC 2 examinations of AWS, Azure, Google Cloud, Microsoft 365, Google Workspace, Oracle Cloud, and IBM Cloud. At AWS, I built and secured cloud infrastructure at scale.
I started Tang Advisory to bring accounting rigor and hands-on technology experience together in a personally attentive practice. Whether we are reviewing your tax return or discussing security controls, my goal is to help you understand the work and the decisions ahead.
Tang Advisory is founder-led, and you work directly with me. Outside work, I enjoy time with my children, basketball, and golf.
Tang Advisory on LinkedInSelected professional credentials are listed here. Current status and the complete engagement-relevant list are verified during acceptance.
Tang Advisory is the trade name of Tang Enterprises LLC, a Washington-registered CPA firm (WA firm license #59422). George Tang is a licensed CPA in Washington (#32532; original issue date May 13, 2014) and was granted Oregon license #17555 on February 2, 2026. Verify current license status at CPAVerify or the Washington State Board of Accountancy.
Step 1
Book a free consultation or contact the firm by email or phone. Share your goals, the service you need, and any relevant deadlines.
Step 2
Establish scope, fees, responsibilities, and communication expectations. SOC 2 work proceeds only after the required acceptance and quality gates are complete.
Step 3
Use the firm-approved, client-restricted exchange channel designated for your engagement. Do not email sensitive documents.
Step 4
Work directly with George to understand the results. Delivery timing depends on scope, information readiness, and required reviews; response expectations are set in the engagement letter.
You work directly with George Tang, CPA, the founder of Tang Advisory. The engagement letter establishes scope, responsibilities, and communication expectations.
Yes. Describe your equity compensation, investments, rental activity, and filing needs during the consultation so the tax engagement can be scoped appropriately.
Tang Advisory serves tax clients across Oregon and Washington. SOC 2 and cybersecurity engagements are available nationwide, subject to engagement acceptance.
Simple individual returns start at $450, with fees based on complexity. Your consultation establishes the flat fee before work begins, and payment is collected upfront.
No. Readiness and examination services have separate scopes, and performing both requires an evaluation of whether the services are permissible and independence safeguards are sufficient.
Timing depends on the service, scope, information readiness, and required reviews. Discuss your deadline during the consultation so timing and communication expectations can be established for your engagement.
Tell me what you need help with, and we'll identify the right next step.