How to Pay Maryland State Taxes Through the Comptroller's Office
What the Maryland Comptroller handles and how to send a payment
The Comptroller of Maryland is the state office that collects income taxes, sales taxes, and certain other state taxes. If you owe Maryland state income tax or need to make a tax payment, you send money to the Comptroller's office, not to a county or local authority. The Comptroller does not handle property taxes — those go to your county assessor — but does handle the state portion of your tax bill.
You can pay the Comptroller through several methods: online at the Comptroller's website using a credit card or debit card, by mail with a check, by phone with a debit or credit card, or through your bank's bill-pay system. Each method has different timing and fees, so the right choice depends on when you need the payment to arrive and whether you want to pay a processing fee.
The Comptroller's office processes payments and applies them to your account based on the date received, not the date you initiate the payment. If you are paying a tax bill that is already due, the date the Comptroller receives the money matters for calculating any penalties or interest owed.
Key Takeaways
- The Maryland Comptroller collects state income tax and sales tax; property taxes go to your county assessor instead.
- Online payment through the Comptroller's website is the fastest method and usually has no fee if you pay by debit card.
- Mailed checks take 7 to 10 business days to arrive and be processed, so mail early if your payment is due soon.
- Credit card payments incur a processing fee of roughly 2 to 3 percent, charged by the payment processor, not the Comptroller.
- Phone payments require your tax ID or Social Security number and a debit or credit card, and are processed the same day you call.
Paying online through the Comptroller's website
The Maryland Comptroller's website has a payment portal where you can pay by credit card or debit card without creating an account. You enter your tax ID or Social Security number, the amount you are paying, and your card information. The payment is processed immediately, and you receive a confirmation number on screen and by email.
Online payments by debit card typically have no fee. Payments by credit card are subject to a processing fee charged by the payment processor — this fee is not set by the Comptroller and varies depending on the processor used on the day you pay, but is usually between 2 and 3 percent of the payment amount. The fee is added to your total charge and appears on your receipt before you confirm the payment.
The Comptroller's office credits online payments to your account the same business day if you pay before the cutoff time, which is usually mid-afternoon. Payments made after the cutoff or on weekends and holidays are credited the next business day. You can check the exact cutoff time on the payment portal before you submit.
Mailing a check to the Comptroller
If you pay by mail, write your check to "Comptroller of Maryland" and include your tax ID or Social Security number on the check memo line. The mailing address depends on what type of tax you are paying — income tax, sales tax, or another tax — so verify the correct address on the Comptroller's website or on your tax notice before you mail.
Mailed checks take 7 to 10 business days to arrive at the Comptroller's office and be processed and credited to your account. The payment is credited on the date the office receives it, not the date you mailed it. If your payment is due on a specific date, mail it at least two weeks in advance to account for postal delays and processing time.
Keep a copy of your check or take a photo of the front and back before mailing. If your payment does not appear in your account within 15 business days of mailing, contact the Comptroller's office with your check number and amount so they can trace it.
Paying by phone or through your bank
You can call the Comptroller's office to pay by phone using a debit or credit card. Have your tax ID or Social Security number and your card information ready. Phone payments are processed the same day you call during business hours and are credited to your account immediately. The phone number and hours are on the Comptroller's website.
You can also set up a payment through your bank's bill-pay system if your bank offers it. Log into your online banking, select bill pay, and enter the Comptroller's office as the payee. Your bank will mail a check on your behalf, so the timing is the same as mailing a check yourself — 7 to 10 business days for delivery and processing. This method is useful if you want to schedule recurring payments or pay from your checking account without entering card information online.
Understanding payment timing and late fees
Maryland state tax payments are considered on time if the Comptroller receives them by the due date shown on your tax notice or bill. The date you initiate the payment — the date you click submit online, mail the check, or call — does not matter. Only the date the Comptroller receives the payment counts.
If your payment arrives after the due date, you may owe a failure-to-pay penalty and interest on the unpaid balance. The penalty is usually 0.5 percent of the unpaid tax per month, and interest accrues daily. These charges are added to your account automatically and appear on your next notice. Paying as soon as possible, even if late, stops the interest from accruing on the amount you pay.
If you cannot pay the full amount by the due date, contact the Comptroller's office about a payment plan. The office can set up an installment agreement that allows you to pay over time and may reduce or waive penalties if you are working with them in good faith.
What to do if you cannot find your tax ID or have questions about your balance
If you do not know your Maryland tax ID, you can use your Social Security number instead when making a payment online or by phone. The payment will still be credited to your account correctly. If you need to look up your tax ID for other reasons, the Comptroller's website has a tool to retrieve it using your Social Security number and other identifying information.
If you are unsure whether you owe a tax payment or how much you owe, log into your account on the Comptroller's website using your tax ID or Social Security number and a PIN. Your account shows your current balance, payment history, and any notices the Comptroller has sent. If you cannot access your account or have questions about the balance, call the Comptroller's office during business hours.
Frequently Asked Questions
Do I pay Maryland state income tax to the Comptroller or to my county?
State income tax goes to the Maryland Comptroller. County and local taxes, including property tax, go to your county assessor or tax collector. If you are unsure which office to pay, check your tax bill — it will show the correct payee and mailing address or payment portal.
What happens if I pay the Comptroller late?
Late payments trigger a failure-to-pay penalty of roughly 0.5 percent per month and daily interest on the unpaid balance. Both are added to your account automatically. Paying as soon as you can stops the interest from growing, even if you cannot pay the full amount at once.
Can I set up automatic payments to the Comptroller each month?
The Comptroller does not offer automatic recurring payments through its website. You can set up recurring payments through your bank's bill-pay system, which will mail a check on your behalf each month on the date you choose. Contact your bank to learn how to set this up.
How long does it take for an online payment to show up in my account?
Online payments are credited the same business day if you pay before the cutoff time (usually mid-afternoon). Payments after the cutoff or on weekends and holidays are credited the next business day. You will receive an email confirmation with a reference number immediately after you submit.
What if I overpaid or paid the wrong amount?
If you overpaid, the Comptroller will hold the extra amount as a credit on your account and apply it to future tax bills. You can also request a refund by contacting the Comptroller's office. If you underpaid, the office will send you a notice showing the remaining balance due and the new due date.