Irvine, Ca
Tax & Business Law Solutions

Trusted Tax Attorney Serving Irvine Businesses and Individuals
Whether you’re facing an audit, received a tax notice, struggling with back taxes, or seeking the right entity for your growing business, our mission is to relieve your stress, restore peace of mind, and put you on a path to financial stability. We pride ourselves on personalized service, transparent communication, and proven results for individuals and small to medium-sized businesses across Southern California.
Comprehensive Tax Law & Business Services in Irvine
Audit Representation
IRS and California state tax audits are disruptive and intimidating—but early intervention is key. We represent Irvine businesses and individuals before federal and state tax authorities, working to resolve controversies during the audit stage and minimize potential tax liabilities. Our team handles audits for income, sales, and employment taxes, as well as tax-exempt entity reviews, leveraging deep knowledge to protect your interests and ensure compliance. Learn more about our IRS audit representation services.
IRS Notice Compliance
Did you receive an IRS notice in Irvine? Ignoring it can trigger costly penalties and interest. Our attorneys act quickly to analyze your unique situation, clarify the types of tax owed, and recommend practical solutions—from payment plans to penalty abatement. We guide you through the process to resolve your tax issue efficiently. See how we help clients respond to IRS notices.
Offer in Compromise & Penalty Abatement
Struggling with tax debt you can’t pay? You may qualify for an Offer in Compromise (OIC)—an IRS program allowing you to settle tax debt for less than you owe. We negotiate directly with the IRS and FTB, and also pursue penalty abatement for those who qualify. More on OIC and penalty abatement.
Payroll Tax & Trust Fund Recovery Penalty Defense
Facing payroll tax problems or Trust Fund Recovery Penalty (TFRP) investigations? Our attorneys provide immediate defense for business owners and officers, protecting your rights and minimizing your financial exposure to IRS and EDD payroll tax actions.
Unfiled Tax Returns & Voluntary Disclosure
Unfiled or late tax returns can quickly spiral into major tax controversies, including criminal charges. We help Irvine clients come clean with the IRS or FTB through strategic voluntary disclosure, mitigating penalties and reducing the risk of prosecution. See unfiled tax return solutions.
California Franchise Tax Board (FTB) & CDTFA Representation
FTB audits, wage garnishments, and CDTFA (sales & use tax) issues are frequent pain points for California businesses. We handle these state-specific matters with a proven track record of successful resolutions.
IRS Criminal Tax Defense
If you are facing accusations of tax fraud or criminal tax evasion, you need experienced legal counsel immediately. Our attorneys are skilled in defending clients against IRS criminal investigations, helping protect your freedom and your future. Learn more about criminal tax defense.
Innocent Spouse Relief
If your spouse or ex-spouse’s tax actions left you with unexpected liabilities, you may qualify for innocent spouse relief. Our Irvine-based tax lawyers are experienced in protecting clients from unfair tax debts and penalties, providing hands-on guidance through this complex process. Read more about innocent spouse relief.
Liens, Levies, and Garnishments
The IRS and California tax authorities aggressively use liens, levies, and wage garnishments to collect debts. We help Irvine clients understand their rights, fight inappropriate collections, and negotiate for offers in compromise, installment agreements, or lien releases to resolve burdensome tax issues. More on liens, levies, and garnishments.
Back Taxes Resolution
Unpaid back taxes won’t go away on their own. Our firm has resolved over $50 million in client tax controversies—let us help you regain control of your finances with proven, compassionate representation. We keep you informed and empowered at every stage. See how we handle back tax representation.
Tax Education
Many costly tax issues arise from simple mistakes or misunderstandings. We believe that education is the first line of defense for Irvine taxpayers. Our educational resources and one-on-one advice help clients maximize deductions, minimize risk, and stay compliant. Explore our tax education resources.
Employee Retention Tax Credit (ERTC) Eligibility
The rules for claiming the Employee Retention Tax Credit change year to year. Our team helps Irvine businesses determine eligibility, gather documentation, and maximize their claims—especially important for local employers still recovering from recent economic challenges. Check your ERTC eligibility.
Research & Development (R&D) Tax Credits
Tech startups and established businesses alike may qualify for lucrative R&D tax credits, which help offset innovation costs. We help identify, document, and secure these credits for eligible Irvine companies. Learn about the R&D credit.
Corporate Transparency Act (CTA) Compliance
The new federal Corporate Transparency Act requires many small businesses and LLCs to file beneficial ownership reports. We help ensure Irvine businesses meet CTA requirements and avoid steep penalties. See more on CTA compliance.
Estate & Gift Tax Planning
Our attorneys provide sophisticated estate and gift tax planning, helping families and business owners minimize tax burdens and protect wealth across generations. Learn about estate tax strategies.
International Tax Compliance: FBAR & FATCA
Do you have foreign bank accounts, assets, or international business ties? We advise on FBAR, FATCA, and other IRS requirements for Irvine clients with global interests. See compliance strategies.
Tax Relief for Gig Workers & Remote Workers
The new landscape of remote and freelance work brings unique tax issues. We help Irvine gig workers, consultants, and digital nomads resolve multi-state tax problems, 1099 issues, and home office deductions. Learn about remote work tax planning.
Not-for-Profit & Charitable Organization Tax Compliance
We assist nonprofits and charitable organizations in Irvine with formation, 501(c)(3) status, annual filings, and audit defense. Explore nonprofit tax services.
Cryptocurrency & Digital Asset Tax Law
Tax law for digital currencies is evolving rapidly. We help clients properly report crypto transactions, minimize tax exposure, and address IRS inquiries about virtual assets.
Business Succession & Exit Planning
Whether you plan to retire, sell, or transfer your business, our lawyers structure tax-efficient exit strategies that safeguard your legacy and reduce your liability.
Asset Protection Strategies
Protect your hard-earned wealth and business assets from lawsuits, creditors, and tax authorities with proactive, legal asset protection planning.
Tax Effects of Business Dissolution or Reorganization
If you’re winding down, merging, or reorganizing your business, our team ensures all tax and regulatory obligations are handled so you can move forward with confidence.
Business Formation & Transactional Services for Irvine Entrepreneurs
Launching a new business in Irvine? Our business attorneys advise on the ideal entity structure—whether a C Corporation (details), S Corporation (details), or LLC (details). We draft and file all necessary documentation and provide guidance every step of the way. Learn about business formation services.
Transferring ownership, buying, or merging a business in Irvine requires close attention to legal details, deadlines, and tax impact. We represent founders, buyers, sellers, and partners—helping you avoid costly pitfalls and close deals with confidence. See our buying and selling business services.


Why Choose The Law Office of Pietro Canestrelli in Irvine?
- Over two decades of experience in tax law and business matters
- Deep understanding of Orange County and Southern California tax issues
- Personalized, fair, and effective solutions for every client
- Direct access to attorneys and regular case updates
- Strong negotiating power with tax authorities
- Guidance for both individuals and businesses—startup to established
Serving Irvine and the Greater Orange County Area
Our office is proud to help clients throughout Irvine, including University Park, Woodbridge, Northwood, Westpark, Turtle Rock, and all surrounding communities. We also serve the broader Orange County region and clients across California and the United States.
Frequently Asked Questions (FAQs) – Irvine Tax Attorney
What should I do if I receive an IRS or FTB notice in Irvine?
Contact a qualified tax attorney as soon as possible. Ignoring the notice can escalate the issue. We can review your options and act fast on your behalf. Read more.
Can your firm help with California state and local business taxes?
Do you handle cryptocurrency, remote work, and gig economy tax issues?
Is it worth hiring a tax attorney for a small business in Irvine?
What if I haven’t filed taxes for several years?
Our team can help you file past-due returns, minimize penalties, and negotiate payment terms with the IRS or FTB. See more on unfiled taxes.