Publication 505 (2015), Tax Withholding and Estimated Tax

For use in 2015

Table of Contents

The Taxpayer Advocate Service Is Here To Help You

What is the Taxpayer Advocate Service?

The Taxpayer Advocate Service (TAS) is an independent organization within the Internal Revenue Service that helps taxpayers and protects taxpayer rights. Our job is to ensure that every taxpayer is treated fairly and that you know and understand your rights under the Taxpayer Bill of Rights.

What Can the Taxpayer Advocate Service Do For You?

We can help you resolve problems that you can’t resolve with the IRS. And our service is free. If you qualify for our assistance, you will be assigned to one advocate who will work with you throughout the process and will do everything possible to resolve your issue. TAS can help you if:

  • Your problem is causing financial difficulty for you, your family, or your business,

  • You face (or your business is facing) an immediate threat of adverse action, or

  • You’ve tried repeatedly to contact the IRS but no one has responded, or the IRS hasn’t responded by the date promised.

How Can You Reach Us?

We have offices in every state, the District of Columbia, and Puerto Rico. Your local advocate’s number is in your local directory and at You can also call us at 1-877-777-4778.

How Can You Learn About Your Taxpayer Rights?

The Taxpayer Bill of Rights describes ten basic rights that all taxpayers have when dealing with the IRS. Our Tax Toolkit at can help you understand what these rights mean to you and how they apply. These are your rights. Know them. Use them.

How Else Does the Taxpayer Advocate Service Help Taxpayers?

TAS works to resolve large-scale problems that affect many taxpayers. If you know of one of these broad issues, please report it to us at

Low Income Taxpayer Clinics

Low Income Taxpayer Clinics (LITCs) serve individuals whose income is below a certain level and need to resolve tax problems such as audits, appeals, and tax collection disputes. Some clinics can provide information about taxpayer rights and responsibilities in different languages for individuals who speak English as a second language. To find a clinic near you, visit or see IRS Publication 4134, Low Income Taxpayer Clinic List.

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