How to Pay the IRS What You Owe

What happens when you owe the IRS money

When you owe federal income tax, the IRS will contact you by mail with a bill that shows exactly how much you owe, what it covers, and the important date to pay. The letter includes a notice number (usually CP14, CP501, or CP503) that identifies what kind of debt it is. You do not have to pay all at once — the IRS offers several payment methods, and if you cannot pay by the important date, you can set up a plan instead of ignoring the bill.

The amount you owe includes the tax itself, plus interest that accrues daily, plus penalties that the IRS adds if you file late or pay late. Interest compounds, so the longer you wait, the more you owe. Paying as soon as you can, even if it is not the full amount, stops some of the penalties from growing. The IRS bill is the official record of what you owe — do not rely on old tax returns or estimates to know your balance.

Key Takeaways

The IRS sends you a bill by mail with a specific notice number and important date; do not ignore it, because penalties and interest keep growing.
You can pay online through IRS.gov, by phone, by mail, or through an approved payment processor, and each method has different fees.
If you cannot pay the full amount by the important date, you can request a payment plan (called an installment agreement) that lets you pay over time.
Setting up automatic payments from your bank account usually costs less than paying through a credit card or third-party processor.
The IRS will tell you the exact amount owed and the important date in the notice they mail you; do not rely on estimates or old tax returns.

Ways to pay the IRS directly

The IRS operates its own payment system at IRS.gov/payments, where you can pay online without a middleman. You will need your Social Security number or employer identification number, the amount you owe, and the tax year the debt is from. The site accepts electronic bank transfers (ACH) at no cost to you, or credit and debit cards for a processing fee that varies by the payment processor the IRS uses that day — typically between 1.87% and 2.35% of the amount you pay.

You can also pay by phone by calling the IRS at 1-800-829-1040 and speaking to a representative, or by mailing a check or money order to the address printed on your bill. If you mail a payment, write your notice number on the check and send it to the address on the notice, not to a general IRS office. Mail payments take longer to process — usually 7 to 14 business days — so if you are near a important date, pay online or by phone instead.

A third option is to use an approved payment processor — companies like PayPal, Stripe, or Square that the IRS has authorized to accept tax payments. These processors charge their own fees, which are usually higher than paying directly through IRS.gov. Use a processor only if you have a reason to, such as wanting to earn credit card rewards and finding the fee worth the benefit.

Setting up a payment plan if you cannot pay now

If the important date passes and you have not paid, or if you know you cannot pay by the important date, you can request an installment agreement — a formal plan that lets you pay the IRS in monthly chunks instead of a lump sum. You can request one online at IRS.gov, by phone at 1-800-829-1040, or by mail. The IRS will review your request and either approve it or ask you for more information about your income and expenses.

There are two main types of installment agreements. A short-term agreement lets you pay off the debt in 120 days or less with no setup fee. A long-term agreement spreads payments over more than 120 days and requires a setup fee (usually between $31 and $225, depending on how you request it and your income level). The IRS will calculate a monthly payment amount based on what you owe and how long you want to take to pay it.

While you are on a payment plan, interest and some penalties keep accruing, so the total amount you owe will grow slightly each month. However, the failure-to-pay penalty usually stops growing once you have a plan in place. If you miss a payment on your plan, the IRS can cancel the agreement and demand the full remaining balance, so set up automatic payments from your bank account if you can.

What to do if you cannot pay even with a plan

If you truly cannot afford any monthly payment, even a small one, you can request Currently Not Collectible (CNC) status. This temporarily pauses collection efforts while you are in financial hardship, though interest and penalties still accrue. You will need to provide the IRS with detailed information about your income, expenses, and assets. CNC status is not permanent — the IRS will review your case periodically and may resume collection when your situation improves.

Another option is an Offer in Compromise, which lets you settle the debt for less than you owe if you can show the IRS that paying the full amount is genuinely impossible. This is a formal process that requires detailed financial documentation and usually takes several months to resolve. The IRS approves only a small percentage of offers, so this is not a shortcut to erasing debt — it is a last resort when you have explored all other options.

Fees and costs of different payment methods

The cost of paying the IRS depends on which method you choose. A bank transfer through IRS.gov costs nothing and takes 1 to 2 business days. Paying by credit or debit card through IRS.gov costs 1.87% to 2.35% of the amount you pay and also takes 1 to 2 business days. Mailing a check or money order costs nothing but takes 7 to 14 business days to process.

If you use an approved payment processor like PayPal or Stripe, the fee varies by processor but is usually 2% to 3% of the amount you pay. Setting up an installment agreement costs a one-time fee of $31 to $225, depending on whether you request it online (cheaper) or by phone or mail (more expensive), and whether your income is below a certain threshold. The cheapest way to pay is always a bank transfer through IRS.gov.

What the IRS notice tells you and why it matters

The bill the IRS mails you is not a request — it is a formal demand for payment with a specific important date. The notice includes the tax year, the type of tax owed (income tax, self-employment tax, etc.), the original tax amount, the interest accrued so far, any penalties, and the total due. It also lists the important date to pay before additional penalties kick in. Do not assume the amount is wrong or that you can negotiate it; if you believe there is an error, you have the right to dispute it, but you must do so through a formal process, not by ignoring the bill.

The notice also tells you how to pay and what to do if you cannot pay. Read it carefully and keep it with your tax records. If you lose the notice, you can look up what you owe by logging into your IRS account at IRS.gov/account or by calling 1-800-829-1040. The IRS bill is the official record of what you owe — do not rely on old tax returns or estimates, because the amount may have changed due to interest and penalties.

Frequently Asked Questions

Can I pay the IRS with a credit card to earn rewards?

Yes, but the fee usually outweighs the rewards. A credit card payment through IRS.gov costs 1.87% to 2.35% of the amount you pay. If your card earns 1% cash back, you lose money on the deal. It only makes sense if your card earns rewards higher than the fee and you were going to pay anyway.

What happens if I miss a payment on my installment agreement?

The IRS can cancel your agreement and demand the full remaining balance when ready. However, they usually send you a notice first giving you a chance to catch up. If you know you will miss a payment, contact the IRS before the due date to ask about options — they may let you skip a month or adjust your plan.

Does paying the IRS stop interest from growing?

No. Interest accrues from the original due date until the debt is fully paid, even if you are on a payment plan. However, paying as much as you can as soon as you can reduces the total amount of interest you will owe over time.

Can I pay someone else to handle my IRS debt?

You can hire a tax professional, enrolled agent, or attorney to represent you with the IRS, but they cannot pay the debt for you — you still have to provide the money. Be cautious of companies that promise to "settle" your IRS debt for pennies on the dollar; most are scams or charge high fees for services you can do yourself.

What if I do not recognize the debt the IRS says I owe?

Contact the IRS when ready at 1-800-829-1040 and explain the situation. Bring any documentation you have, such as copies of tax returns you filed or proof of payment. The IRS can investigate, but you should do this quickly — waiting makes it harder to dispute and allows penalties to grow.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.