IRS Denver Phone Number
In this page, you can find IRS Denver information, phone numberr, 303-446-1675 address, how to make an IRS appointment at the IRS tax help and more important and interesting things to know about the IRS.
Looking for the IRS Denver phone number or trying to get in touch with the Internal Revenue Service office in Denver, Colorado? You’re in the right place. This page provides complete and up-to-date information about the IRS Denver office, including the official phone number, office address, appointment scheduling details, services offered, and other essential resources for taxpayers and businesses throughout the Denver metro area.
The official IRS Denver phone number is 303-446-1675. You can use this number to speak directly with an IRS representative regarding personal and business tax issues, account inquiries, tax return questions, payment arrangements, and more. Whether you need to ask about your tax refund, resolve IRS notices, or request assistance with tax forms, the IRS Denver office can provide in-person and phone-based support to help you navigate the federal tax system.
The IRS office in Denver is a local Taxpayer Assistance Center (TAC), serving individuals and companies in the greater Denver region and surrounding communities. If you need to visit the IRS Denver office in person, you’ll need to make an appointment in advance. Walk-in services are not available.
IRS Denver Phone Number
What is IRS Denver phone number?
If you need to contact the Internal Revenue Service office in Denver, Colorado, the official local IRS Denver phone number is 303-446-1675. This direct line connects you to the IRS Taxpayer Assistance Center located in Denver, where you can speak with an IRS representative about a wide range of tax-related issues.
Whether you’re an individual taxpayer or a business owner, the IRS Denver office is available to assist you with filing questions, account inquiries, notices from the IRS, identity verification, tax payments, refund status, and more. Calling the IRS Denver phone number is a reliable way to get help with federal tax matters without having to wait on the national IRS toll-free lines.
Before calling, it’s important to prepare your tax documents and have your Social Security Number or Taxpayer Identification Number on hand. For more complex tax matters or to meet with someone in person, you may need to schedule an appointment at the Denver IRS office. Note that in-person services at this location are by appointment only—walk-ins are not accepted.
IRS Appointment Denver
How to schedule an IRS appointment in Denver?
If you need in-person help from the IRS Denver Taxpayer Assistance Center (TAC), you must book an appointment in advance. The IRS does not accept walk-ins at its Denver location, so scheduling ahead is required for all face-to-face services.
To make an IRS appointment in Denver, call the IRS appointment line at 844-545-5640. This is the dedicated national phone number used for scheduling appointments at IRS offices across the United States, including the Denver IRS office. When you call, an IRS representative will help you find available time slots and walk you through the process of setting up an appointment based on your needs.
Appointments at the Denver IRS office are available for services such as resolving tax notices, verifying your identity, making payments, requesting tax transcripts, help with IRS forms (such as Form 2290 or 911), assistance with Economic Impact Payments, and other tax-related matters. Be sure to clearly explain the reason for your visit when calling, so that the IRS can assign the appropriate personnel and allocate the necessary time.
Before attending your appointment, make sure you bring a valid photo ID, your Social Security Number or Individual Taxpayer Identification Number (ITIN), and all relevant documents related to your tax issue.
Making an IRS Appointment for IRS Denver Tax Help
If you’re seeking help from the IRS in Denver, Colorado, the best way to get personalized assistance is by scheduling an official appointment at the local IRS Taxpayer Assistance Center (TAC). Meeting with an IRS agent in person can be extremely helpful when dealing with complex tax issues, account problems, IRS letters, refund delays, or identity verification.
To learn the most efficient and hassle-free method of scheduling an IRS appointment at the IRS Denver office, we recommend watching this detailed instructional video:
This video walks you through every step of the appointment-setting process, including how to contact the IRS Denver appointment line, what information you’ll need when calling, which tax services are available in person, and what documents to bring with you when you meet with an IRS representative.
Whether you’re an individual taxpayer, self-employed, or a small business owner, the Denver IRS office can provide professional, face-to-face guidance to resolve your tax concerns. Appointments are required—walk-ins are not accepted—so it’s important to book ahead.
When was the IRS created?
The IRS, officially known as the Internal Revenue Service, was created in 1952 as part of a major reorganization of the federal tax collection system. The restructuring was ordered by President Harry S. Truman, who called for a sweeping overhaul of the Bureau of Internal Revenue, which had been operating since the Civil War era.
Before becoming the IRS, the agency was known as the Bureau of Internal Revenue and was originally established in 1862 during the presidency of Abraham Lincoln. Its purpose at the time was to collect income taxes to help fund the Civil War. Over the decades, the bureau grew in size and complexity, eventually requiring modernization to keep pace with growing demands from taxpayers and the federal government.
In 1952, under Truman’s directive, the Bureau of Internal Revenue was transformed into the Internal Revenue Service. This name change was more than symbolic—it marked a shift toward improved professionalism, transparency, and efficiency in tax administration. The reorganization included the implementation of a merit-based civil service system, aimed at eliminating corruption and increasing public trust in federal tax operations.
Today, the IRS is a vital agency within the U.S. Department of the Treasury. It is responsible for collecting federal taxes, enforcing tax laws, processing tax returns, issuing refunds, and providing taxpayer assistance nationwide.
IRS Denver Address
What is IRS Denver Address?
Below is IRS Denver physical & mailing address:
IRS Denver
1999 Broadway
City: Denver
State/Zip Code: CO 80202
Services Provided by the IRS Denver
What services are provided by the IRS Denver?
The IRS Denver Taxpayer Assistance Center (TAC) offers a wide range of tax-related services for both individuals and businesses. Located in the heart of Denver, Colorado, this IRS office serves as a vital resource for taxpayers who need help understanding and resolving their federal tax issues in person. Whether you are dealing with complex filings, payment problems, identity verification, or IRS letters and notices, the Denver IRS office provides professional support tailored to your needs.
Below is a detailed list of the key services offered at the IRS Denver office:
- Account Inquiries – Get help reviewing your IRS account status, payment history, and any outstanding balances or credits.
- Tax Return Adjustments – Assistance with correcting errors or updating information on previously filed tax returns.
- Alien Clearances – Support for foreign nationals leaving the U.S., including tax compliance certifications (Form 1040-C).
- Affordable Care Act (ACA) Tax Questions – Personalized help with ACA-related tax requirements and penalties for individuals and families.
- Tax Cuts and Jobs Act Guidance – Ongoing assistance with tax law changes brought by the TCJA, available year-round.
- Basic Tax Law Assistance – Get answers to general federal tax questions and guidance on how the law applies to your situation.
- Payment Acceptance – The Denver IRS office accepts checks, money orders, and cash payments for federal tax liabilities.
- Economic Impact Payment Issues – Help resolving problems with stimulus checks and COVID-related tax relief programs.
- IRS Forms Assistance – Access, complete, and submit tax forms such as Form 911 (Taxpayer Advocate Request) and Form 2290 (Heavy Vehicle Use Tax Return).
- Identity Protection PIN (IP PIN) – Assistance obtaining or recovering your IRS-issued IP PIN to prevent tax-related identity theft.
- Individual Taxpayer Identification Number (ITIN) – Apply for or renew your ITIN if you are not eligible for a Social Security Number.
- Payment Arrangements – Set up payment plans or installment agreements if you owe taxes but cannot pay in full.
- Procedural Inquiries – Ask questions about IRS procedures, notices, deadlines, and taxpayer rights.
- Tax Resolution and Support – Receive help in resolving back taxes, responding to IRS letters, and dealing with tax compliance issues.
Whether you’re an individual taxpayer, self-employed professional, or a business entity, the IRS Denver TAC is equipped to provide direct assistance on a variety of tax matters. Visiting the local office ensures that you get personalized, accurate, and timely support to help resolve your IRS issues quickly and efficiently.
IRS-phone-numbers.com is a trusted, independently operated information hub that provides detailed and up-to-date contact information for IRS Denver and other IRS offices across the United States. We are not affiliated with any government agency, including the Internal Revenue Service, the U.S. Department of the Treasury, or any federal institution. Our goal is to offer easy access to essential IRS contact details to help taxpayers find the information they need—quickly and conveniently.
Whether you’re looking for the IRS Denver phone number, office address, hours of operation, directions, or instructions on how to schedule an appointment, IRS-phone-numbers.com serves as a helpful resource. In addition to Denver, we cover hundreds of IRS locations nationwide, allowing individuals, small business owners, and tax professionals to find reliable contact details for local IRS offices in any state.
We strive to keep our directory as accurate and up to date as possible. However, if you notice outdated information or have new details about the IRS Denver office, such as phone number changes, updated services, or location modifications, we encourage you to contact us. Your feedback helps us maintain the highest level of accuracy and usefulness for everyone who visits our site.
Additional IRS Offices
IRS Columbus OH
IRS Richmond VA
IRS Las Vegas
IRS Louisville KY
IRS Jackson MS
IRS New York
IRS Boise ID
IRS Hartford CT
Milwaukee IRS
IRS Mountainside NJ