
Julian Drago
November 7, 2025
If you have income in the United States, a business registered there, or you simply need to file federal taxes, chances are that at some point you’ll need IRS taxpayer assistance. Not everything can be resolved with online forms—sometimes you need to speak with someone, clarify a notice, review documents, or resolve specific questions about your tax return.
In this article, we explain what IRS taxpayer assistance is, what types of help exist (online, phone, and in-person), when it makes sense to use each one, and why understanding this landscape is important if you’re starting or managing a business connected to the U.S.
When we talk about IRS taxpayer assistance, we refer to all the official channels the Internal Revenue Service makes available to:
This assistance is provided mainly through three channels:
Understanding how each option works saves you time, stress, and often money.

The IRS has gradually moved many of its services to the digital environment. Through its official portal, you can:
For many situations—especially if you simply need to:
online taxpayer assistance is enough and much faster than calling.
When your case is more specific—such as questions about a letter you received, an adjustment you don’t understand, or an issue with a penalty—you usually need to speak with someone.
Generally:
In practice, IRS taxpayer assistance by phone requires:
In addition to online and phone support, the IRS operates “Taxpayer Assistance Centers” (TACs). These centers:
A very specific example is ITIN document review:
Many centers offer telephone interpretation services in different languages, making IRS taxpayer assistance more accessible for people whose primary language is not English.
You don’t always need to call or visit in person. Many questions can be solved with proper professional guidance. However, contacting the IRS makes sense if:
In these situations, IRS taxpayer assistance allows you to clarify the issue “at the source,” but preparation is key: understand the context, bring the right documents, and have a clear overview of your case.

If you’re going to use these channels, keep a few practical tips in mind:
Before calling or visiting a TAC:
This ensures IRS taxpayer assistance focuses on solving the issue—not trying to piece together what’s going on from scratch.
During a call or appointment:
This is extremely helpful if you later need to show that you followed the IRS’s guidance.
Make sure you use only:
IRS taxpayer assistance also helps protect you from scams: if someone calls demanding immediate payment through unofficial channels or threatens instant arrest, it's a red flag.
If you’re building a business structure in the United States, IRS taxpayer assistance may come into play more than once, especially if:
In these situations, IRS taxpayer assistance helps you:
However, reaching these points without a solid structure can be exhausting. Ideally, you should organize your tax and corporate matters from the start so that:

No. It is also relevant for people living outside the U.S. who have:
In these cases, you can use phone assistance or, if traveling to the U.S., schedule a TAC appointment.
It depends. For simple matters (refund status, form downloads, checking certain balances), yes.
But for issues like complex letters, adjustments, penalties, payment plans, or questions about your specific situation, you usually need to combine:
If you leave letters unanswered, the situation can escalate:
IRS taxpayer assistance exists precisely so you can understand what’s happening in time.
Openbiz helps you create and structure your U.S. company and organize your administrative and tax matters properly. In many cases, this includes coordinating with professionals who can represent you before the IRS when necessary, always with the required authorization.
The important thing is that you’re not alone: you have a clear plan, organized documentation, and a coherent strategy for interacting with the IRS.
IRS taxpayer assistance can be a powerful ally—or a source of stress when you don’t understand your structure or obligations.
If you’re thinking of starting a business in the United States, already have an entity there, or work with U.S. clients, Openbiz can help you:
If you want to move forward with your U.S. project with professional support, contact us and we’ll review your case so you can focus on growing your business while we help you structure the legal, administrative, and tax side.