A certified letter from the Louisiana Department of Revenue is almost always a formal notice of assessment, and it starts a 60-day clock. Within those 60 calendar days from the date on the letter, you have to either pay the amount the state says you owe or file an appeal with the Louisiana Board of Tax Appeals.1Justia. Louisiana Revised Statutes Title 47 RS 47-1565 – Notice of Assessment Miss that window and the assessment becomes final. The Department can then seize your bank accounts, wages, and property without going to court.
What the Letter Actually Is
The Department uses certified mail when it needs a verifiable record that you were notified of something with legal consequences. The most common reason is a formal notice of assessment: a calculated amount of tax, penalty, and interest that the Department has now officially placed on the books against you.
You may have seen this coming. Before a certified assessment goes out, the Department typically sends a preliminary notice by regular mail explaining that it has found a problem and intends to assess a specific amount after 30 days.2Justia. Louisiana Revised Statutes Title 47 RS 47-1562 – Determination and Notice of Amount of Tax Due If nothing was resolved in that window, the certified letter is what follows.
The issues behind these letters are usually one of a few things: a return the Department says you didn’t file, income it says you underreported, a balance that was assessed but never paid, or errors flagged during an audit or automated review. A certified letter can also announce enforcement action on a balance already made final.
The 60-Day Deadline
Sixty calendar days from the date on the assessment. That is the deadline that controls everything else.1Justia. Louisiana Revised Statutes Title 47 RS 47-1565 – Notice of Assessment Within it, you have to do one of two things: pay, or file an appeal.
The window is not flexible. Once it passes, the assessment is final, you lose your right to challenge the amount at the Board of Tax Appeals, and the Department can start collecting immediately.1Justia. Louisiana Revised Statutes Title 47 RS 47-1565 – Notice of Assessment Even if the assessed amount is wrong, the state isn’t required to wait while you sort it out. The most common way people get into serious trouble here is setting the letter aside intending to deal with it later.
What to Do in the First Week
Open the letter and read it carefully. It will identify the tax type, the periods involved, the amount broken into tax, penalty, and interest, and the deadline for responding. Write down that deadline where you’ll see it.
Then pull your own records for the tax periods listed. If the Department says you didn’t file a return you know you filed, find your proof of filing. If the amount looks off, find the records that support your version. Check whether the tax periods even fall within the state’s assessment window (see below on the three-year rule).
Decide which of three positions you’re in. If you agree with the assessment, pay it inside the 60-day window so penalties and interest stop growing. If you disagree, you have two response paths, both explained below. If you need more time to gather documentation, don’t wait until you’re fully ready to make contact. Call or write the Department to acknowledge the notice while you prepare. Silence reads as disregard.
Keep records of everything. Save the certified mail receipt, note the date you received the letter, and send any responses by certified mail so you have your own proof of delivery.
Your Two Ways to Push Back
Appeal to the Board of Tax Appeals
The Board of Tax Appeals is an independent body that hears disputes between taxpayers and the Department of Revenue. Filing a petition there within the 60-day window stops the Department from collecting while your case is pending and gives you a formal forum to challenge the assessed amount.1Justia. Louisiana Revised Statutes Title 47 RS 47-1565 – Notice of Assessment This is the more common path because it doesn’t require paying anything upfront.
Your petition has to be in writing and attach a copy of the assessment notice, and it can be e-filed through eFileLA. Filing fees depend on the amount in dispute:
- Assessment appeals under $10,000: no filing fee
- $10,000 to $50,000: $300
- Over $50,000: $450, plus $40 for each additional party served
If you owe a fee and don’t include it, the Board notifies you and gives you 60 days to pay. If you miss that second 60-day window, the petition is dismissed and the debt goes to the Office of Debt Recovery.3Louisiana Board of Tax Appeals. FAQ The Board honors a mailbox rule for filing deadlines, but only with an official U.S. Postal Service postmark, so keep your mailing receipt.4Louisiana Board of Tax Appeals. Rules and Regulations of Procedure and Practice
Pay Under Protest, Then Sue
The alternative is to pay the full assessed amount (tax, interest, and penalties) and, at the same time, give the Department written notice that you intend to file suit in district court or a petition with the Board of Tax Appeals to recover it.5Justia. Louisiana Revised Statutes Title 47 RS 47-1576 – Remittance of Tax Under Protest
Once you send that notice, the Department places the payment in escrow for 30 days. You have to file your suit or petition inside those 30 days. If you do, the money stays in escrow until the case is resolved. If you don’t, the Department keeps it.5Justia. Louisiana Revised Statutes Title 47 RS 47-1576 – Remittance of Tax Under Protest Most taxpayers can’t fund this route, but if you can, it prevents any collection activity while you litigate.
What You’re Actually Being Charged
Louisiana penalties escalate the longer you wait. Failure to file a return costs 5% of the tax due for each 30-day period, capped at 25%. Filing but not paying triggers the same 5%-per-period, 25%-cap structure, except for individual income tax, where the failure-to-pay rate is 0.5% per 30-day period with the same 25% cap.6Justia. Louisiana Revised Statutes Title 47 RS 47-1602 – Penalty for Delinquency
Interest runs on top of the penalties. The rate is three percentage points above the state’s judicial interest rate and adjusts each calendar year, capped at 1.25% per month.7Louisiana State Legislature. Louisiana Code RS 47-1601 – Interest For 2025 the annual rate was 11.25%. Interest is calculated from the date the tax was originally due, which is why the assessed number in a certified letter can be much larger than the underlying tax.
Penalties, but not interest, can be waived for reasonable cause. The Secretary of Revenue has authority to waive delinquency penalties when your late filing or payment wasn’t due to negligence. The request must be in writing and explain what happened. The statute doesn’t give a bright-line test, but a few situations create a presumption in your favor: filing under a valid extension with at least 90% paid by the original due date and the rest paid with the return, or filing an amended Louisiana return within 90 days of an IRS adjustment to your federal return.8Louisiana State Legislature. Louisiana Code RS 47-1603 – Waiver of Penalties
If you can’t pay all at once, the Department can approve an installment agreement, evaluated based on your ability to pay.9Legal Information Institute. Louisiana Admin Code Title 61 I-4919 – Installment Agreement for Payment of Tax Interest keeps accruing during the plan. Louisiana also has an offer in compromise program, but it’s narrow: it requires serious doubt about collectibility, serious doubt about the underlying liability, or a situation where collection would cost more than the debt itself.10Louisiana Department of Revenue. What Relief Is Available for Financial and Personal Hardships Approvals are not routine.
What Happens If You Do Nothing
After 60 days without payment or an appeal, the assessment is final and the Department can collect by distraint and sale. That power covers personal property, bank accounts, securities, wages, and real estate.11Louisiana Department of Revenue. Cash Seizure No court order is required. The final assessment itself is the legal basis for collection.
Interest continues to accrue every month the balance sits unpaid, and the Department has no obligation to remind you or reopen the appeal window once it closes. Filing an appeal on time is what prevents all of this: while the case is pending at the Board of Tax Appeals or on further review, the Department cannot collect by distraint and sale.1Justia. Louisiana Revised Statutes Title 47 RS 47-1565 – Notice of Assessment
Is the Assessment Even Timely
Louisiana generally has three years to assess additional taxes, measured from December 31 of the year the return was filed.12Louisiana State Legislature. Louisiana Code RS 47-1580 – Prescription A return filed in April 2024 for tax year 2023 starts the clock on December 31, 2024, and the Department has until December 31, 2027, to assess.
Two important limits on that rule. First, if you never filed a return, there is no limitations period at all — the Department can assess whenever it wants, which is one reason unfiled returns are a worse position than filed returns with errors. Second, fraud or a substantial failure to report income can extend or eliminate the period.
When you read a certified assessment, check the tax periods against this timeline. If the Department is reaching back further than the statute allows and none of the exceptions apply, that’s a real basis for an appeal, and it’s one more reason not to let the 60 days run out before you look.