Internal Revenue Service (IRS)

Did you receive a letter from the IRS? Coast Professional, Inc. has been contracted by the IRS to help taxpayers resolve past due accounts using procedures approved by the IRS. Working on the agency’s behalf under its Private Debt Collection program, Coast maintains a strict compliance program to provide quality service, fair treatment, and adhere to all taxpayer rights. Coast employees are trained to follow all applicable regulations and consumer protections.

Contact Us

The easiest way to communicate with Coast is by phone. Please reference the Taxpayer Authentication Number that was mailed to you to confirm your identity.

Toll Free:

To Pay By Mail:

Department of the Treasury
Internal Revenue Service
Kansas City, MO 64999-0010

To Pay Online:

To Send Documents:

Please fax documents to (866) 705-5797. 
Private collection agencies such as Coast working on behalf of the IRS will not contact you via email or text.

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Make a Payment

Payment can only be made directly to the IRS or through a Pre-Authorized Direct Debit with Coast drafting a check on your behalf.  Additional information on the Pre-Authorized Direct Debit payment method is available by contacting Coast.

What to Expect

Before a Coast representative calls to help resolve your overdue taxes, you will receive two letters:
  • Notice CP40 and Publication 4518 from the IRS. These documents let you know that your overdue tax account was assigned to a private collection agency, and
  • A letter from Coast, with instructions on how to resolve your debt.
Both of these letters contain a Taxpayer Authentication Number that is used to confirm your identity. Have it available when calling Coast.

Throughout the debt resolution process, letters and phone calls will be the only ways we reach out to taxpayers. During each phone call, the representative will identify him or herself as a Coast employee working on behalf of the IRS and take you through the authentication process to verify your identity.  Private collection agencies such as Coast working on behalf of the IRS will not contact you via email or text.


IRS Video: How Will You Be Contacted?

Making Payments

Payments can only be made directly to the IRS or through a Pre-Authorized Direct Debit with Coast drafting a check on your behalf. Additional information on the Pre-Authorized Direct Debit payment method is available by contacting Coast at (888) 928-0510.

Payments by check are to be mailed directly to the IRS at the following address:

Department of the Treasury
Internal Revenue Service
Kansas City, MO 64999-0010


To make online payments or apply for a payment plan with the IRS at www.irs.gov/payments.

You will never be asked to pay with a pre-paid debit card or wire transfer. If this occurs, or if anyone other than Coast calls you about your debt, it is a scam.


IRS Video: Need a Payment Plan?

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