844-545-5640 is the IRS telephone line for scheduling an appointment at a Taxpayer Assistance Center. The agency publishes the number on its local office contact page, and the Taxpayer Advocate Service lists weekday appointment line hours. This is an official way to request in person assistance, but an incoming display of the number cannot authenticate a caller.
A taxpayer should separate an appointment request from a demand for immediate tax payment. The IRS says suspicious calls should be ended and reported, especially when they threaten arrest or demand payment immediately. Someone with a real tax question can independently open IRS.gov, check available assistance, and use the published appointment process without following an unexpected caller’s instructions.
What the IRS uses 844-545-5640 for
The Taxpayer Advocate Service lists 844-545-5640 for Taxpayer Assistance Center appointments Monday through Friday, 7 AM to 7 PM local time. Its general telephone guidance says Alaska and Hawaii follow Pacific time. Before calling, review the IRS local office page to check available services and choose the location suited to the issue that needs in person attention.
The IRS asks people to schedule an office appointment ahead of time. Its local office guidance lists identification requirements, a taxpayer identification number, and supporting tax documents to bring. Review that current checklist for the planned visit. Preparing the actual tax notice or relevant records helps keep the appointment focused on the question that prompted the contact.
Appointments for ITIN and cash payment services
An appointment for an individual taxpayer identification number has additional practical requirements. The IRS’s ITIN services page says to bring the application package and notes that each spouse or dependent applying must attend in person with their own package. It also warns that getting an appointment may take several weeks, so planning ahead can matter for this service.
The cash payment guidance also uses 844-545-5640 to arrange assistance. The IRS explains that some centers cannot accept cash, and not every cash accepting center handles amounts of $10,000 or more. Its appointment process considers the amount, tax periods, and types of tax so the taxpayer can be directed to a center equipped for the intended payment.
How to check who called
Checking who called requires a separate step from finding the number on IRS.gov. The FTC warns that scammers can falsify caller identification to show a trusted agency. The phone lookup guide explains why matching digits is insufficient. A threat, unusual payment instruction, or unexpected demand for personal details should be checked through an independently selected agency route.
Tax payment threats and scam calls
| Request or issue | Official route |
|---|---|
| Office appointment | IRS Taxpayer Assistance Center appointment line |
| ITIN help | Bring the application package and required applicants |
| Suspicious IRS call | Hang up and report to TIGTA |
The IRS warns that gift card requests are not a legitimate way to pay a tax bill. Its January 17, 2025 guidance describes impersonators demanding cards, threatening a fictitious penalty, and asking for the numbers and PINs. Taxpayers should not buy cards to satisfy that demand or give a caller control over a supposed payment process.
Check demands displaying 844-545-5640
For calls displaying 844-545-5640, an arrest threat is another reason to stop the interaction. The IRS says it will not threaten to bring in law enforcement or immigration officers for nonpayment. A person worried about an actual balance can investigate it through IRS.gov rather than accept an unexpected caller’s account of an urgent penalty or enforcement action.
What to do after paying or sharing information
If personal information or money was already exposed, follow the FTC’s instructions for the specific situation and contact the affected bank or payment provider promptly. Ask whether the payment can be reversed or recovered. Exposed passwords should be changed, including reused versions. The recovery scams guide explains why an additional payment for a promised refund can worsen the loss.
Where to report IRS impersonation
Report scam calls claiming an IRS connection to the Treasury Inspector General for Tax Administration or its hotline at 800-366-4484, as directed by the IRS. Record the number before hanging up. The reporting guide helps organize the incident, including any separate callback number, messages, payment demands, and the caller’s claimed agency role or instructions to the taxpayer.
The IRS also provides channel specific reporting instructions for suspicious tax communications. For texts, it advises against replying or opening links and explains how to send details to [email protected]. The FTC accepts scam reports at ReportFraud.ftc.gov. Use the appropriate route for the contact received while separately addressing any account security problem or payment exposure directly with the affected provider.
The official use of 844-545-5640 is scheduling Taxpayer Assistance Center help, including appointments for certain ITIN services and cash payment needs. That identification should make it easier to seek legitimate assistance, while the caller’s requested action still needs scrutiny. A taxpayer can verify the issue independently and refuse gift card payments, threats, or other demands that conflict with IRS guidance.
Questions and answers
What is the official purpose of this number?
The IRS publishes the number for arranging appointments at Taxpayer Assistance Centers. The agency’s ITIN and cash payment guidance also uses that appointment route. A caller displaying it still needs an independent identity check before personal information or payment is provided.
When is the appointment line listed as open?
The Taxpayer Advocate Service lists the appointment number as available Monday through Friday from 7 AM to 7 PM local time. Its general telephone guidance says Alaska and Hawaii follow Pacific time. Check current IRS information before calling.
What should someone bring to an IRS office appointment?
The IRS local office guidance lists identification requirements, a taxpayer identification number such as a Social Security number or ITIN, and supporting tax documents. Review the current checklist before the visit and bring records relating to the particular issue.
Must ITIN applicants attend the appointment personally?
The IRS ITIN services page says each spouse or dependent applying must appear in person with their own application package. It also notes that obtaining an appointment may take several weeks. Review the official application requirements before scheduling the visit.
Can every IRS assistance center take a large cash payment?
No. The IRS says not every center accepts cash, and not all cash accepting centers can handle amounts of $10,000 or more. The appointment process directs taxpayers to an appropriate location based on the proposed payment and tax details.
Where should a threatening IRS call be reported?
The IRS directs people to record the number, hang up, and report suspicious IRS calls to the Treasury Inspector General for Tax Administration or call 800-366-4484. The FTC also accepts scam reports through ReportFraud.ftc.gov, including attempts without a completed payment.
Sources
- Contact your local IRS office · Internal Revenue Service
- IRS Tax Law Phone Line · Taxpayer Advocate Service
- Taxpayer Assistance Centers with ITIN services · Internal Revenue Service
- Cash payments over $10,000: frequently asked questions · Internal Revenue Service
- How taxpayers can protect themselves from gift card scams · Internal Revenue Service
- Report fake IRS, Treasury or tax-related emails and messages · Internal Revenue Service
- What To Do if You Were Scammed · Federal Trade Commission
- Phone Scams · Federal Trade Commission