Seattle Tax Examination Attorney Helping Individuals And Businesses Protect Their Rights

Getting an IRS notice in the mail can feel like the government has already decided you did something wrong. The reality is that most tax examinations are negotiations guided by deadlines, documentation and strategy.

If you are in Seattle and facing an IRS or Washington Department of Revenue (DOR) review, Insight Law helps you understand what’s happening, protect your rights, and respond in a way that reduces (or defeats) proposed tax changes. We focus on doing good work at an affordable price, and we offer free consultations so you can get clarity quickly, before small issues become large assessments, penalties or collection action.

What Is A Tax Examination?

A tax examination (often called an audit) is the IRS or Washington DOR reviewing the accuracy of a return or business tax reporting. It may involve requests for records, interviews, and questions about income, deductions, credits, payroll, sales tax or nexus. An exam does not automatically mean fraud or a criminal case. Most examinations are civil reviews where outcomes depend on:

• Whether the agency’s assumptions are accurate
• Whether your records support the return positions
• How you present facts and legal arguments
• Whether deadlines are met and rights are preserved

Handled early and strategically, an examination is often manageable, and the result frequently comes down to documentation, deadlines and how effectively your position is presented.

What Triggers IRS Audits In Seattle?

Any discrepancy can potentially lead to an IRS examination. Some common triggers for individuals include:

• Differences between your self-reporting and other documents
• Large or unusual deductions (Schedule A or Schedule C)
• Self-employment income and cash-heavy businesses
• Real estate sales, 1031 exchanges or depreciation issues
• Unfiled returns or late filings
• Business losses, NOLs and high-income items

Seattle-area businesses also face audits for a variety of reasons. Some common issues include:

• Sales tax collection and exemption certificates
• Use tax on out-of-state purchases or untaxed items
• Nexus questions (economic nexus, in-state activity and marketplace sales)
• Proper B&O classification (service vs. retailing/wholesaling/manufacturing)
• Apportionment and sourcing for multi-state activity

We help Seattle individuals and businesses respond to DOR information requests, limit exam scope where appropriate, correct misunderstandings and negotiate fair outcomes. If an assessment is issued, we advise on administrative review options and escalation paths.

What Notices Might You Receive During An IRS Examination?

An IRS examination usually comes with a paper trail. The IRS uses specific letters and notices to open the exam, request documents, propose changes and explain your appeal rights. Knowing what each notice means — and what deadlines attach — helps you avoid missed opportunities to resolve the matter early.

Audit Initiation Letters

Most exams begin with a letter telling you the IRS is reviewing a specific tax year (or multiple years) and identifying the issue(s) under review. Common examples include:

• Letter 566 (often for correspondence exams): This letter requests documents to support items on a return (income, deductions, credits).
• Letter 2205-A / 2205-B (often for business/field exams): This letter notifies you your business return is selected and that a revenue agent will conduct the exam.

If you receive these letters, confirm the tax year or years involved, the issues listed and the response deadline as soon as possible.

CP2000 Notices (Mismatch Notices)

A CP2000 is one of the most common IRS “audit-like” notices. It usually means the IRS matched third-party reporting (W-2s, 1099s, brokerage 1099-Bs, K-1s, crypto reporting, etc.) against your return and believes something doesn’t line up. A CP2000 is often negotiable. The IRS may be missing information, misclassifying income or not accounting for deductions/offsets. A careful response can reduce or eliminate the proposed change.

Information And Document Request Letters

After opening the audit, the IRS typically sends requests for records. In a field exam, the agent may:

• IDR (Form 4564): This is a formal request for specific documents (bank statements, invoices, payroll records, mileage logs, crypto exchange records, etc.).
• Follow-up IDRs or “please call” letters: These letters narrow the request, set meeting dates or address gaps in what was provided.

If you receive these documents, respond in an organized way, provide only what is requested unless your lawyer suggests that you provide more and keep a complete copy of everything you submit.

’30-Day’ Letters

If the examiner believes that you need to make changes, you may receive a package proposing adjustments. This is commonly referred to as a 30-day letter because it typically gives you 30 days to respond or request an appeal.

These letters often include:

• A written explanation of proposed changes
• Computations
• Forms such as an examination report (varies by case type)

Treat this letter as a major decision point. This is often your best opportunity to resolve the case without going to court through a well-supported response or an Appeals protest.

Statutory Notice Of Deficiency: The ’90-Day’ Letter

If you don’t resolve the case at the earlier stages, the IRS may issue a Notice of Deficiency — often called a 90-day letter. This is a critical deadline notice. Generally, you have 90 days to file a petition with the U.S. Tax Court (150 days if addressed outside the U.S.).

Do not ignore this document. Missing the 90-day deadline can severely limit your options and may force you into “pay first, sue later” paths. Insight Law helps Seattle taxpayers evaluate whether Tax Court is appropriate, preserve deadlines and build the record needed for litigation or settlement.

Employment Tax And Business Audit Notices

If your business is under review for payroll issues, you may see additional specialized correspondence and forms tied to:

• Worker classification (employee vs. independent contractor)
• Payroll tax deposits and returns
• Information reporting (Forms W-2/1099)

Payroll exams can expand quickly and may raise trust fund penalty exposure if handled poorly.

What Does An IRS Examination Look Like?

An IRS examination typically unfolds in stages. It often starts with a notice identifying the tax year(s) and the items under review, then moves into information gathering through written questions and document requests (frequently an Information Document Request, or IDR). Depending on the type of audit, the process may stay in writing as a correspondence exam or involve calls, interviews, and meetings with a revenue agent in an office or field setting.

As the IRS reviews what you provide, the scope can narrow or expand. The examiner may issue follow-up IDRs, request clarification, or ask for additional categories of records such as bank statements, bookkeeping files, invoices, payroll reports, or substantiation for deductions and credits. If the IRS believes changes are warranted, you may receive proposed adjustments and closing paperwork. In more contested cases, you may receive a 30-day letter giving you a chance to respond or pursue an administrative appeal. In some audits, the IRS may also ask you to sign a statute extension to give the agency more time to complete the examination.

Under IRC §7602, the IRS has authority to examine books and records, request documentation, and take testimony to determine the correctness of a return. That does not mean you have to navigate the process alone, especially when requests are burdensome or deadlines are tight. Having a tax professional involved early can help keep the examination within appropriate bounds, ensure responses are complete without over-disclosing, and present your facts and legal arguments clearly to reduce the risk of unnecessary adjustments.

How Can You Defend Your Rights During An Audit?

At Insight Law, we use decades of experience to help our clients protect their rights and their finances when their taxes come into question. Some of the ways we can help during an IRS examination include:

• Establish the narrative early: Audits often turn on how facts are framed. We help you organize documents, explain transactions clearly, and avoid off-the-cuff statements that can expand the scope of the exam.
• Get documentation: Bank records, invoices, receipts, mileage logs, payroll records, contracts and accounting files can all be important during an audit. We identify what actually proves your position and present them in a clean, audit-ready format.
• Negotiate: Many proposed adjustments are based on assumptions. We challenge incorrect positions, apply the right tax law, and negotiate outcomes that minimize tax, penalties and interest.
• Consider options like Independent Office of Appeals protests: If the examiner proposes changes you disagree with, a properly prepared Appeals protest can be a turning point. IRS Appeals are designed to resolve disputes without litigation. We prepare persuasive protests supported by law and evidence, and we represent you in Appeals conferences.
• Petitioning the tax court: When the IRS issues a 90-day Notice of Deficiency, a Tax Court petition can preserve your rights and create leverage for settlement. We assess the cost-benefit of litigation and guide you through the process if court becomes the best option.

When you respond early and strategically, an IRS examination is often manageable and can be resolved without unnecessary damage.

After The Exam: Administrative Appeals And Litigation Paths

If an IRS or Washington DOR examination ends with proposed changes, an assessment, or a bill you disagree with, the case is not necessarily over. In many situations, you still have procedural tools to challenge the result, submit additional documentation, and negotiate a resolution, but the window to act can be short. The right next step depends on where the case is in the process, what notices were issued and what deadlines are running. Some steps include:

• IRS Appeals: File a protest and present facts and law in an Appeals conference to pursue a negotiated resolution without going to court.
• U.S. tax court: After a 90-day Notice of Deficiency, petition the tax court to preserve rights and seek review without paying the full amount upfront (in most cases).
• Post-assessment litigation (“pay and sue”): Where applicable, pay required amounts and pursue a refund claim and lawsuit in the appropriate forum.
• Washington DOR administrative review: Challenge Washington business tax assessments through the DOR’s review and dispute processes, including audit reconsideration and administrative appeals where available.

Insight Law evaluates the strongest path forward based on leverage, cost and timeline. Sometimes the best move is an IRS Appeals protest aimed at resolving the dispute without litigation. In other cases, preserving your right to independent judicial review — such as by filing a Tax Court petition after a 90-day Notice of Deficiency — can be the most effective way to protect your position and force a meaningful settlement discussion.

We also help clients with post-assessment options where payment is required to litigate, and we guide Washington businesses through Department of Revenue dispute procedures after a state audit or assessment. The common thread is speed and strategy: missed deadlines can eliminate appeal rights, while a timely and well-supported filing can change the outcome.

Why Work With A Seattle Tax Examination Attorney?

Local representation matters when your finances, business operations and deadlines are on the line. Our founding lawyer at Insight Law supports Seattle individuals and business owners with practical, responsive counsel. That means that you will work with someone you can reach, who understands the local business environment and the real-world impact of tax disputes.

We prioritize good work at an affordable price and transparent planning. Whether you are responding to a CP2000 mismatch, a 30-day letter or a Washington DOR B&O/sales tax exam, we help you move from uncertainty to a clear strategy.

Free Consultation: Get Ahead Of The Audit Timeline

If you are in Seattle and received an IRS CP2000 notice, 30-day letter, a request for records under an exam or a Washington DOR audit notice involving B&O or sales tax, Insight Law can help. Contact us for a free consultation to review the notice, explain the timeline and map out the best defense and resolution strategy. Call 206-922-8078 to get started.