Letters You Can Handle Yourself
Many IRS notices are straightforward and do not require professional help. A CP14 balance due notice that you agree with can be paid online. A CP12 math error notice that correctly identified a mistake on your return needs no response. A CP05 refund hold notice just requires patience. An address change confirmation (CP104) just needs a quick review.
If the amount is small, you agree with the IRS's position, and there are no deadlines with legal consequences, you can probably handle it on your own.
Letters That Require Professional Help
Certain letters should trigger an immediate call to a tax attorney or qualified representative. These include any statutory notice of deficiency (Letter 3219, CP3219A), any final levy notice (Letter 1058, CP90, LT11), any lien notice (Letter 3172), any trust fund recovery penalty letter (Letter 1153, Letter 3586), any audit opening letter for complex returns, and any letter you do not understand.
Why a Tax Attorney Specifically
CPAs and enrolled agents can represent you before the IRS. But certain situations require the legal expertise and privileges that only a licensed attorney provides. Tax Court petitions must be filed by an attorney admitted to practice before the Tax Court (or pro se). Complex audit disputes involving legal interpretation require legal analysis. Cases involving potential criminal exposure need an attorney because of attorney-client privilege.
Attorney-client privilege is the critical distinction. Communications between you and your attorney are privileged and cannot be disclosed to the IRS. Communications with a CPA or EA do not have the same level of protection. If your case involves any possibility of fraud, willfulness, or criminal conduct, you need an attorney.
The Cost of Waiting
The most expensive mistake taxpayers make is waiting too long to get help. A statutory notice of deficiency costs a few thousand dollars to handle if you act immediately. Wait until after the 90-day deadline passes and you may need to pay the full tax before you can challenge it. A levy notice costs a few hundred dollars to respond to if you file a CDP request on time. Wait until after the 30-day deadline and the IRS takes your money.
How to Choose
Look for a tax attorney who focuses on IRS representation. Ask how many IRS cases they handle. Ask whether they are admitted to practice before the Tax Court. Ask about their experience with your specific type of issue. A good tax attorney will give you a clear assessment of your situation and a realistic plan for resolution.
Hiring a tax attorney is not an expense. It is an investment in protecting your rights and your money. The cost of representation is almost always less than the cost of handling a serious IRS matter wrong.