Getting a letter from the Internal Revenue Service (IRS) about an audit doesn’t mean you’re in trouble, but it does mean the clock is ticking. You don’t get much time to respond, and the IRS won’t wait if you hesitate. Here’s how their deadlines work and what you can do to stay ahead of the process.
You usually have 30 days to respond
IRS audit letters typically give you 30 days to reply, starting from the date printed on the notice, not the day you opened or saw it. The countdown begins when the IRS sends the letter out, and that short window can go fast if you’re being asked for old receipts, business records or anything that takes time to track down.
The deadline is printed on the letter
You’ll find the exact response date listed clearly, often near the top or bottom of the letter. That’s the IRS’s expectation for when they will hear from you, not a flexible suggestion. If you haven’t sent anything back by that deadline, even just a request for time, the IRS may assume you’re refusing to cooperate.
Acknowledging the letter buys you time
You don’t need to explain everything in 30 days. A valid response can be as simple as calling the IRS, asking for clarification or requesting a short extension. That kind of communication stops the audit from moving forward without you and gives you space to prepare the right documents.
Missing the deadline shifts power to the IRS
When no response comes in, the IRS makes decisions without your input, which often means denying deductions, increasing your bill and adding penalties, even if you had evidence that could’ve changed the outcome. The longer you stay quiet, the harder it becomes to fix anything.
Respond early to keep things under control
Once that audit letter lands, every day matters, not just for paperwork, but for keeping the process from tipping against you. A timely reply, even a small one, keeps you in the process and gives you room to steer things back on track. If you’re not sure how to start, it’s worth speaking with a tax lawyer who knows how to keep things from spiraling.