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Tax & Customs

Income Tax Dispute

The notice says your income was higher than you reported, or that a deduction is being disallowed, and it proposes a balance you do not recognize. An income tax dispute often starts with a form letter, and how you answer it shapes what follows.

Reviewed

01 GUIDE

Income Tax Dispute: what usually happens

Reading the notice correctly

Many income tax disputes begin not with an audit but with an automated notice comparing your return with forms filed by employers, banks, brokers, or payment platforms. These notices propose changes and give you a chance to agree or disagree before additional tax is assessed. Other notices come out of an examination, question specific deductions or credits, or announce that a balance is due. New York State sends its own notices through the Department of Taxation and Finance, and a federal change can lead to a state adjustment later, since New York generally expects taxpayers to report federal changes. The title of the notice, the tax year, and the response date tell you which kind you have.

Common reasons the numbers do not match

Information returns are sometimes wrong, duplicated, or missing cost basis, especially for brokerage sales. Income may have been reported under the wrong person's identification number, or a payment that was really a reimbursement or a loan may have been reported as income. Deductions and credits are often questioned when the IRS lacks documentation it expected to see, and residency questions can cause disputes between states. Identity theft can also put income you never earned on IRS records. Gather the notice, the return, the information returns, and the records supporting your position before you respond.

Responding without making it worse

A response should address each item the notice raises, agree where the notice is right, and explain with documents where it is wrong. Paying a disputed amount just to stop the letters generally turns any later challenge into a refund claim, while a partial agreement sometimes makes sense. If the response period passes, the next notice is often a notice of deficiency, which carries a strict deadline to petition the Tax Court. We review the notice, compare it with your records, and tell you whether a straightforward response is likely to be enough or whether the matter calls for representation through an examination or appeal. If the dispute touches several years or both federal and state returns, we coordinate the responses so they stay consistent.

02 ATTORNEYS

Who you would be working with

Attorneys at our New York and Washington, D.C. offices handle matters like this one.

05 HOW WE WORK

Client-centered service across jurisdictions

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We deliver coordinated and effective legal services to our clients, utilizing our extensive legal resources and experienced attorneys in our well-integrated global network. Through our Washington D.C. and New York offices, together with our alliance

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Our attorneys are experienced in both domestic and international matters and, with fluency in various languages, provide clear and consistent communication at every stage of your legal process.

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06 OFFICES

Where we meet clients

Consultations are available in person or remotely.

New York

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(855) 529-7557

Washington, D.C.

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(855) 529-7557

Los Angeles

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(424) 561-7557

Attorney Advertising. This page is general information about income tax dispute and is not legal advice. Reading it does not create an attorney-client relationship. Outcomes depend on the facts of each matter, and prior results do not guarantee a similar outcome. Laws differ by state and change over time.