How to Pay Illinois State Taxes Through MyTax.Illinois.Gov

What MyTax.Illinois.Gov Does and Who Uses It

MyTax.Illinois.Gov is the Illinois Department of Revenue's online portal where you can view your tax account, file a return, make a payment, or check the status of a refund. You do not have to use it — you can mail a check, pay by phone, or work with a tax preparer — but it is the fastest way to pay if you owe money or want to confirm what the state has on file for you.

The portal works for individual income tax, corporate tax, pass-through entity tax, and other state tax types. If you have already filed a return and now need to pay, or if you want to make a payment before you file, you can do both through this site. The payment goes directly to the Illinois Department of Revenue and posts to your account within one to two business days.

Key Takeaways

• MyTax.Illinois.Gov lets you pay state taxes online using a bank account (ACH) or credit/debit card, and the payment posts within one to two business days.
• You will need your Illinois tax ID number (usually your Social Security number for individuals) and your date of birth to log in or create an account.
• ACH payments (from your checking or savings account) are free, but credit and debit card payments charge a processing fee of roughly 2 percent.
• If you cannot pay in full, you can set up a payment plan through the portal, and the state will contact you about the terms.
• Payments made before midnight Central Time are typically processed the same day; payments after midnight are processed the next business day.

How to Log In and Find Your Tax Account

Go to mytax.illinois.gov and select "Login" in the top right corner. If you do not have an account, choose "Create Account" and enter your Illinois tax ID (for most people, your Social Security number), date of birth, and email address. The state will send you a temporary password to that email.

Once you are logged in, you will see your account dashboard. This shows any balance due, refunds pending, and recent filings. If you have filed a return and the state has processed it, you will see the amount owed or the refund amount here. If you have not filed yet but know you will owe, you can still make a payment — the state will apply it to your account once your return is processed.

If you cannot remember your password or your account details, use the "Forgot Password" or "Forgot Username" links on the login page. The state will verify your identity and send a reset link to your email.

Paying by Bank Account (ACH) — No Fee

The cheapest way to pay is by ACH transfer from your checking or savings account. There is no fee, and the payment is secure because you are not entering your card number.

From your account dashboard, select "Make a Payment." Choose "ACH Bank Transfer" as the payment method. Enter the amount you want to pay and the date you want it to post (you can schedule it up to 30 days in advance). Then enter your bank account number and routing number. The routing number is the nine-digit code at the bottom left of your checks, or you can call your bank to ask.

Review the details and confirm. The state will debit your account within one to two business days. If you schedule a payment for a future date, it will post on that date unless it falls on a weekend or state holiday, in which case it posts the next business day.

Paying by Credit or Debit Card — With a Fee

You can also pay by Visa, Mastercard, American Express, or Discover. The state does not charge a fee, but the payment processor does — typically around 2 percent of the amount you pay. For example, a $1,000 payment would cost roughly $20 in processing fees.

From "Make a Payment," select "Credit/Debit Card." Enter the amount, your card number, expiration date, and CVV (the three-digit code on the back). The payment posts immediately, and you will receive a confirmation number right away.

Because of the fee, most people use ACH for larger payments and reserve the card option for smaller amounts or when they need the money to post the same day.

Setting Up a Payment Plan If You Cannot Pay in Full

If you owe but do not have the full amount right now, you can request a payment plan through MyTax.Illinois.Gov. From your account, look for "Payment Plans" or "Installment Agreements." Select the option to request a plan and enter the amount you can pay each month.

The Illinois Department of Revenue will review your request and contact you by mail or email with the terms. Payment plans typically require a down payment and then monthly installments. Interest and penalties continue to accrue while you are on a plan, so the longer you take to pay, the more you will owe in total.

If the state denies your plan request or the terms do not work for you, you can call the Department of Revenue at the number on your notice to discuss other options.

What Happens After You Pay

Once your payment is submitted, you will receive a confirmation number on screen and by email. Keep this number in case you need to prove you paid. The state will post the payment to your account within one to two business days.

If you paid by ACH and scheduled it for a future date, the money will not leave your bank account until that date arrives. If you need to cancel a scheduled payment, log back into MyTax.Illinois.Gov and select "Cancel Payment" before the posting date.

If you overpay — for example, you pay $2,000 but only owe $1,800 — the state will hold the extra $200 as a credit on your account. You can use it to pay next year's taxes, or you can request a refund by contacting the Department of Revenue.

Troubleshooting Common Payment Problems

If your payment is rejected, the most common reasons are a wrong bank account number, insufficient funds, or a mismatch between the name on your account and the name on your tax return. Check that your routing and account numbers are correct, and that your bank account has enough money to cover the payment.

If you paid but do not see it posted after three business days, log back into MyTax.Illinois.Gov and check your payment history. If the payment shows as "Pending," wait one more business day. If it shows as "Failed" or "Rejected," the portal will usually tell you why. You can then make another payment or contact the Department of Revenue for help.

If you are having trouble logging in, make sure you are using the correct Illinois tax ID (usually your Social Security number) and that you entered your date of birth in MM/DD/YYYY format. If you still cannot log in after trying the password reset, call the Department of Revenue's customer service line — the number is on any tax notice you have received.

Frequently Asked Questions

Can I pay someone else's Illinois taxes through MyTax.Illinois.Gov?

No. You can only pay taxes on an account you own or are authorized to manage. If you are a spouse, parent, or power of attorney, you may be able to add yourself to the account through the portal, but you will need the account holder's permission and tax ID number. Contact the Department of Revenue if you are unsure whether you can manage someone else's account.

What if I pay online but then file my return late — will the payment still count?

Yes. The state will apply any payment you made to your account once your return is processed, even if you paid months earlier. The payment date does not have to match your filing date. However, interest and penalties may still apply if you filed late, so paying early does not erase those charges.

Is MyTax.Illinois.Gov safe for entering my bank account information?

The site uses encryption and security measures standard for government tax portals. Your bank account number is sent directly to the payment processor, not stored on the Illinois Department of Revenue's servers. That said, only use MyTax.Illinois.Gov on a device you trust, and never share your login credentials with anyone.

Can I get a receipt or proof of payment from MyTax.Illinois.Gov?

Yes. After you pay, you will see a confirmation number on screen. You can print this page or save it as a PDF. You can also log back into your account anytime and view your payment history, which shows the date, amount, and confirmation number for each payment you made.

What if I need to pay but do not have a bank account or credit card?

MyTax.Illinois.Gov requires one of these payment methods. If you do not have either, you can mail a check to the Illinois Department of Revenue (the address is on your tax notice) or call their office to ask about other payment options, such as paying in person at a Department of Revenue office.