Yes, the IRS charges interest on payment plans, and you may owe penalties too
If you set up a payment plan with the IRS, you will pay interest on the unpaid balance. The interest rate is set by federal law and changes quarterly. As of early 2024, the rate is 8 percent per year, but this varies depending on when your debt was assessed. You also continue to owe any penalties that were part of your original bill — the payment plan does not erase them, only spreads out what you owe.
The IRS compounds interest daily, meaning interest accrues on top of interest. The longer your payment plan runs, the more interest you will pay overall. A smaller monthly payment means a longer plan and more total interest. This is why understanding the real cost of a payment plan matters before you commit to one.
Key Takeaways
- Interest on IRS payment plans is currently 8 percent per year but changes quarterly based on federal rates, so your actual rate depends on when the IRS assessed your debt.
- Interest compounds daily on the unpaid balance, meaning you pay interest on interest, and the total cost grows the longer your plan runs.
- Penalties you already owe do not disappear when you enter a payment plan — they remain part of your bill and accrue interest too.
- The IRS charges a setup fee to create a payment plan, ranging from $31 to $225 depending on the plan type and whether you pay by direct debit.
- Paying off the plan faster reduces the total interest you will owe, even if it means larger monthly payments.
How the interest rate is set and when it changes
The IRS interest rate is tied to the federal short-term rate plus 3 percentage points. The IRS announces the new rate on the first business day of each calendar quarter — January, April, July, and October. Your rate is locked in on the date the IRS first assessed your tax debt, not when you set up the payment plan. This means two people on identical payment plans may pay different interest rates if their debts were assessed in different quarters.
You can find the current and historical IRS interest rates on the IRS website under "Interest Rates." The rate applies to all unpaid tax, penalties, and interest that accrued before your payment plan began. Once your plan is active, new interest continues to accrue on whatever balance remains unpaid.
Penalties that stay with you on a payment plan
The IRS assesses two main penalties on unpaid tax: a failure-to-file penalty (if you did not file a return) and a failure-to-pay penalty (if you filed but did not pay). These penalties are typically 5 percent of the unpaid tax per month, up to 25 percent total. When you enter a payment plan, these penalties do not go away — they remain part of your bill and accrue interest just like the tax itself.
The IRS can reduce or remove penalties in some cases, but only if you request relief before you set up the payment plan. Once the plan is active, the penalties are locked in. If you believe you have reasonable cause for the penalties — such as a serious illness or a death in the family — contact the IRS before you commit to a payment plan to discuss penalty abatement.
Setup fees and how they vary by plan type
The IRS charges a fee to set up a payment plan. The amount depends on which type of plan you choose and how you pay:
| Plan Type | Fee (Direct Debit) | Fee (Other Payment Methods) |
|---|---|---|
| Short-term plan (120 days or less) | $31 | $31 |
| Long-term installment plan | $31 | $225 |
| Streamlined installment plan | $31 | $225 |
The fee is added to your balance, so you will pay interest on it too. Setting up direct debit (automatic monthly withdrawal from your bank account) saves you $194 on a long-term plan. The fee reduction is the IRS's incentive to use direct debit, which reduces the risk of missed payments.
How interest compounds and what it costs you over time
Interest compounds daily on the IRS payment plan. This means each day, the IRS calculates interest on the total unpaid balance — including the tax, penalties, and all interest that has accrued so far. The next day, interest is calculated on that larger amount. Over months or years, this compounds significantly.
A simple example: if you owe $10,000 and set up a 60-month plan at 8 percent annual interest, your monthly payment would be roughly $185. But you would pay about $1,100 in interest over the life of the plan. If you stretched that same debt over 72 months, your payment would drop to about $155, but you would pay roughly $1,300 in interest. The lower payment costs you more in total interest.
The IRS provides a payment plan calculator on its website where you can enter your debt amount and see estimated monthly payments and total interest for different plan lengths. This tool helps you compare the real cost of different payment schedules before you commit.
What happens if you miss a payment or pay late
If you miss a payment on your IRS payment plan, the IRS may terminate the plan and demand full payment of the remaining balance. You will also owe a failure-to-pay penalty on top of the unpaid amount. Interest continues to accrue on everything you owe, including the penalty.
If you know you will miss a payment, contact the IRS before the due date. The IRS can sometimes modify your plan — lowering the monthly payment or extending the timeline — to help you stay current. Calling the IRS at the number on your payment plan notice is faster than waiting for a bill or notice in the mail.
Ways to reduce the total interest you will pay
The most direct way to reduce interest is to pay off the plan faster. Even small increases to your monthly payment can save hundreds in interest over time. If you receive a tax refund, bonus, or inheritance, putting that money toward your IRS debt immediately stops interest from accruing on that amount.
You can also request an Offer in Compromise if you cannot pay the full amount owed. This is a settlement where the IRS accepts less than the full debt. It requires showing that you cannot pay in full, and the process takes several months. An Offer in Compromise stops interest from accruing while your request is being reviewed, which can save money if your plan would otherwise run for years.
Another option is to request Currently Not Collectible status if you are facing severe financial hardship. This temporarily pauses collection efforts and stops penalties from accruing, though interest still accrues. This status lasts up to 120 days and can be renewed if your situation does not improve.
Frequently Asked Questions
Can I change my payment plan to a lower monthly payment if I cannot afford it?
Yes. Contact the IRS at the number on your payment plan notice and request a modification. The IRS can extend your plan timeline, which lowers the monthly payment but increases total interest. If you are facing hardship, mention that when you call — the IRS may discuss Currently Not Collectible status or other options.
Does the interest rate on my payment plan ever change after I set it up?
No. Your interest rate is locked in on the date your tax debt was assessed. Even if the IRS raises rates in future quarters, your rate stays the same. However, interest continues to accrue daily on your unpaid balance throughout the plan.
What if I pay off my payment plan early — do I save on interest?
Yes. Interest stops accruing the day you pay the final balance. Paying early saves you all the interest that would have accrued in the remaining months. The IRS does not charge a penalty for early payment, so there is no downside to paying faster if you can.
Are there payment plans with no interest?
No. All IRS payment plans charge interest on the unpaid balance. The interest rate is set by federal law and applies to every payment plan type. The only way to avoid interest is to pay the full amount owed immediately.
If I set up a payment plan, will the IRS still try to collect from my bank account or garnish my wages?
Once you have an active payment plan and are making payments on time, the IRS typically stops collection actions like wage garnishment or bank levies. However, if you miss payments or default on the plan, the IRS can resume collection efforts. Staying current on your plan protects you from these actions.