The IRS charges a setup fee and monthly interest on payment plans
The IRS charges two separate costs when you set up a payment plan: a one-time setup fee and interest that accrues monthly on whatever balance remains unpaid. The setup fee ranges from $31 to $225 depending on which type of plan you choose and how you pay. Interest compounds daily at a rate set by the IRS each quarter — currently around 8% per year, though this changes — so the longer your plan runs, the more you pay in total.
You cannot avoid these costs if you want a payment plan. The IRS does not waive fees for low income, and there is no way to negotiate the interest rate. What you can control is which plan type you choose, because different plans have different setup fees, and the faster you pay, the less interest accumulates.
Key Takeaways
- Setup fees range from $31 for a short-term plan to $225 for a long-term installment agreement, depending on the plan type and payment method.
- The IRS charges interest on your unpaid balance every day, at a rate that changes quarterly and is currently around 8% annually.
- You pay interest only on the amount still owed, so paying faster reduces your total cost.
- Online payment plans through IRS.gov have lower setup fees than plans you arrange by phone or mail.
- The IRS may reduce or remove the setup fee if your income is below a certain threshold, though you still pay interest.
Setup fees by plan type
A short-term payment plan — where you pay off the debt within 180 days — costs $31 to set up if you pay online through IRS.gov. This is the cheapest option. If you arrange it by phone or mail, the fee is $225.
A long-term installment agreement — where payments stretch beyond 180 days — costs $225 to set up by phone or mail, or $31 if you set it up online. Some people may have access to for a streamlined installment agreement, which has a lower setup fee of $31 regardless of how you pay, but only if your total debt is under $50,000 and you agree to automatic monthly payments from a bank account.
The difference between online and phone/mail is significant: setting up online saves you $194. The IRS encourages online setup because it reduces their administrative work. You can set up an online plan at IRS.gov if you owe less than $25,000 in combined taxes, penalties, and interest.
How interest works on your payment plan
Interest is separate from the setup fee. The IRS charges interest on your unpaid tax balance at a rate that changes every three months. The rate is the federal short-term rate plus 3 percentage points. As of early 2024, this is around 8% per year, but check IRS.gov for the current quarter's rate before you commit to a plan.
Interest compounds daily, meaning it accrues on top of itself. If you owe $5,000 and make no payments, after one year you would owe roughly $5,400 in interest alone (at 8%). The longer your plan runs, the more interest you pay. A plan that stretches over five years will cost significantly more in interest than one you finish in two years, even though your monthly payment is smaller.
You cannot negotiate the interest rate or ask the IRS to waive it. Interest is mandatory on all unpaid federal taxes. The only way to reduce interest is to pay faster.
Penalties on top of setup fees and interest
In addition to setup fees and interest, you may owe penalties — charges the IRS adds for filing late or paying late. These penalties are separate from interest and are calculated on your original unpaid tax amount. Common penalties include a failure-to-file penalty (usually 5% per month, up to 25%) and a failure-to-pay penalty (usually 0.5% per month, up to 25%).
Penalties do not disappear when you set up a payment plan. They remain part of your total debt, and interest accrues on them too. If you owe $3,000 in tax plus $600 in penalties, your payment plan covers both, and interest applies to the full $3,600.
When the IRS may reduce your setup fee
The IRS has a low-income relief program that can reduce or remove your setup fee if your income falls below a certain level. The threshold changes yearly and depends on your filing status and number of dependents. For 2024, the threshold is roughly $35,000 for a single filer, though you should check IRS.gov for the current year.
If you may have access to, the IRS may reduce your setup fee to $31 or waive it entirely. You still pay interest on your balance — the fee reduction does not affect that. To request low-income relief, you must contact the IRS directly by phone or through a payment plan process; you cannot request it online.
Comparing your total cost across different plan lengths
The total cost of a payment plan depends on three things: the setup fee, the interest rate, and how long you take to pay. Here is how the math works for a $5,000 debt at 8% annual interest:
| Plan Length | Monthly Payment | Setup Fee | Total Interest Paid | Total Cost |
|---|---|---|---|---|
| 6 months (short-term, online) | ~$840 | $31 | ~$165 | ~$5,196 |
| 24 months (long-term, online) | ~$220 | $31 | ~$530 | ~$5,561 |
| 60 months (long-term, online) | ~$95 | $31 | ~$1,200 | ~$6,231 |
The shorter the plan, the less interest you pay overall, even though your monthly payment is higher. If you can afford a larger monthly payment, paying faster saves you money. If monthly cash flow is tight, a longer plan reduces your payment but increases your total cost.
Frequently Asked Questions
Can I avoid the setup fee?
No, unless you may have access to for low-income relief. The setup fee is mandatory for all payment plans. You can reduce it by setting up online ($31) instead of by phone or mail ($225), but you cannot eliminate it entirely unless the IRS waives it due to low income.
Does the interest rate ever go down?
The IRS sets interest rates quarterly based on federal rates. Your rate does not change during your plan — it is locked in when you set up — but the rate the IRS charges new plans changes every three months. You cannot lock in a lower rate by waiting; rates are unpredictable.
What happens if I pay off my plan early?
You stop accruing interest once you pay the full balance. There is no penalty for paying early. If you pay off a $5,000 debt in three months instead of 24, you pay far less interest. The setup fee does not change — you pay it upfront regardless of how long you take to finish.
Do I have to pay the setup fee all at once?
The setup fee is usually added to your first payment or deducted from your first payment, depending on your plan type. You do not pay it separately. If you set up a plan for $5,000 with a $31 fee, your first payment may be $31 plus your regular installment amount, or the fee may be rolled into your total balance.
Is there a way to get a lower interest rate?
No. The interest rate is set by law and applies to all taxpayers equally. You cannot negotiate it, and the IRS does not offer discounts. The only way to reduce interest is to pay your balance faster, which shortens the time interest accrues.