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Business Details
48 Years
experience
Experienced Tax & Estate Law Attorney in Oklahoma City
Established in 1978, Cook II William R, PLLC has built a reputation as a trusted tax and estate law firm serving Oklahoma. Our practice focuses on federal and state taxation, estate planning, and tax litigation, combining 34 years of hands-on experience with advanced technical resources. We pride ourselves on staying current with evolving tax regulations while delivering strategic solutions tailored to individual and business needs. Our team specializes in minimizing tax liabilities through meticulous financial analysis and customized transaction structuring. Recognized with an AV Preeminent Peer Review Rating by Martindale-Hubbell, we maintain the highest standards of professional ethics and client service. We serve clients across Oklahoma, offering personalized guidance for complex tax challenges, estate administration, and litigation representation.

Our commitment to excellence extends to probate matters, trust law, and charitable planning, ensuring comprehensive wealth preservation strategies. With a background that includes clerkship experience at the U.S. Tax Court and advanced tax education, I lead our firm in delivering practical, results-driven legal counsel. We utilize computerized tax preparation systems to guarantee accuracy while maintaining a client-focused approach that prioritizes clear communication and realistic expectations. Our courtroom experience spans multiple federal and state jurisdictions, including the U.S. Supreme Court and Tax Court. Whether addressing wage garnishments, tax amnesty cases, or estate tax audits, we combine technical expertise with dedicated advocacy to protect client interests.
Services
Tax Planning Estate Taxation Tax Litigation Probate Services Trust Law Gift Tax Planning IRS Representation Wage Garnishment Relief Estate Administration Tax Amnesty Cases
Details
  • Year established: 1978
Highlights and features
  • 34 years of specialized tax law experience since 1978
  • AV Preeminent Peer Review Rating for legal excellence
  • Advanced computerized tax preparation systems for accuracy
  • Personalized service with direct attorney access
  • Serves clients statewide across Oklahoma
Associations and certifications
  • Martindale-Hubbell AV Preeminent
Services
Tax Planning
Our tax planning services help individuals and businesses minimize liabilities through strategic financial structuring. We analyze income tax implications, estate tax exposure, and business transactions to create customized plans that comply with federal and state regulations. Our approach combines advanced computational tools with personalized guidance to optimize tax outcomes.
Estate Taxation
We specialize in estate tax planning and compliance for executors, trustees, and beneficiaries. Our services include calculating estate tax liabilities, preparing federal and state estate tax returns, and implementing wealth transfer strategies. We help clients navigate complex tax codes to preserve family assets and ensure smooth intergenerational wealth transitions.
Tax Litigation
Our firm represents clients in tax controversies before the IRS, Oklahoma Tax Commission, and federal/state courts. We handle audit representation, collection defense, and tax court litigation. With experience in U.S. Tax Court and district courts, we advocate for favorable resolutions through negotiated settlements or courtroom representation when necessary.
Probate Services
We guide executors and administrators through Oklahoma's probate process, handling tax implications and asset distribution. Our services include preparing inventory filings, resolving creditor claims, and ensuring compliance with state probate laws. We help settle estates efficiently while minimizing tax burdens for beneficiaries.
Trust Law
Our trust planning services create customized solutions for asset protection and tax-efficient wealth transfer. We draft revocable and irrevocable trusts, advise on charitable remainder trusts, and structure generation-skipping transfers. We ensure trusts comply with tax regulations while meeting clients' estate planning objectives.
People
Cook II William R
Attorney
AV-rated tax attorney with 34 years of experience in Oklahoma. Specializes in federal/state taxation, estate planning, and tax litigation. Admitted to U.S. Tax Court and Supreme Court. Holds LL.M. in Taxation from Southern Methodist University.
Questions
What tax services do you offer for businesses?
We provide business tax planning, IRS representation, audit defense, and tax controversy resolution. Our services include minimizing corporate tax liabilities and structuring tax-efficient business transactions.
Do you handle estate tax planning for high-net-worth individuals?
Yes, we specialize in comprehensive estate tax planning, including trust creation, gift tax strategies, and generation-skipping transfer tax mitigation for high-value estates.
Can you represent me during an IRS audit?
Yes, we provide full audit representation services, including preparing documentation, negotiating with IRS agents, and ensuring compliance with tax code requirements during examinations.
What areas of Oklahoma do you serve?
We serve clients statewide including Oklahoma City, Tulsa, Lawton, and surrounding areas for all tax and estate law matters.
How do I schedule an initial consultation?
Call us at 405-858-1920 or use our online contact form to schedule your initial consultation with Oklahoma City tax attorney William R. Cook II.