How to Pay Your Pennsylvania State Income Tax
Where Pennsylvania sends your tax bill and how to pay it
Pennsylvania's Department of Revenue collects state income tax through several payment methods, and which one you use depends on whether you owe taxes when you file or you're making a quarterly payment. Most people pay through their employer's payroll withholding and never see a bill. If you do owe money, you can pay online through the state's website, by mail, or through an authorized payment processor. The state does not accept payment by phone or in person at an office.
Your payment method affects when the state receives your money and whether you face a penalty. Mailing a check takes longer and creates a postmark date issue — the state considers your payment late if it arrives after the deadline, even if you mailed it on time. Electronic payments clear the same day or within one business day, which is why they carry less risk.
Key Takeaways
- Pennsylvania accepts tax payments online through the Department of Revenue website, by mail with a check, or through third-party payment processors that charge a fee.
- The state considers a payment late based on when it arrives, not when you mail it, so electronic payment is safer if you are close to the deadline.
- If you owe tax when you file your return, you can pay at the same time you submit your return or separately afterward.
- Quarterly estimated tax payments are required only if you are self-employed or have income not subject to withholding and expect to owe more than a certain amount.
Paying tax when you file your Pennsylvania return
When you file your Pennsylvania tax return, the state gives you the option to pay any balance due at the same time. If you file electronically through a tax software or tax preparer, you can authorize payment directly from your bank account or by credit or debit card. The state does not charge a fee for ACH bank transfers, but credit and debit card payments incur a processing fee paid to the payment processor, not to the state.
If you file by mail, you must include a check or money order with your return. Write your Social Security number and "PA-40" (the form number) on the check. Mail both the check and your return to the address listed in the return instructions — this address changes based on your county of residence. The state's processing center will not receive your payment on the date you mail it, so allow at least one week for delivery.
You can also pay after you file. If you file without paying, you can send a check by mail or pay online through the Department of Revenue's website within the time allowed before penalties begin. Paying after filing does not change your filing deadline — your return is still considered on time if it arrives by the deadline, even if your payment arrives later.
Paying online through the Department of Revenue
The Pennsylvania Department of Revenue operates a payment portal where you can pay by electronic bank transfer (ACH) at no charge. To use this system, you need your Social Security number, the amount you owe, and access to your bank account information. The payment posts to your account within one business day.
The state also accepts payments through third-party processors such as PayUSA and Official Payments. These processors charge a convenience fee — typically between 1.5% and 2.5% of the amount you pay — which you pay directly to the processor, not to Pennsylvania. The fee is separate from your tax payment and is not deductible. These services allow payment by credit card, debit card, or bank transfer, and they process payments seven days a week.
When you pay online, keep your confirmation number. This number proves you paid and when you paid, which matters if there is ever a dispute about whether the state received your payment. Write down the date, amount, and confirmation number, and save any email receipt the processor sends you.
Quarterly estimated tax payments for self-employed people
If you are self-employed or have income that is not subject to withholding — such as rental income, investment income, or business profit — you may need to make quarterly estimated tax payments to Pennsylvania. The state requires these payments only if you expect to owe more than a certain threshold by the time you file your annual return. The threshold amount varies and depends on your total income and filing status.
Quarterly payments are due on April 15, June 15, September 15, and January 15. You can pay through the same online portal used for annual payments, or by mail. The state provides a voucher form (PA-505) that you can use when mailing a check. If you miss a quarterly payment deadline, you may owe a penalty and interest, even if you pay the full amount when you file your annual return.
Many self-employed people underestimate their quarterly payments and end up owing a large balance when they file. If this happens, you can still pay the balance in full when you file your return, but you will owe a penalty for underpayment. Some people choose to increase their withholding at a job they also hold, or to make larger quarterly payments in later quarters, to reduce the final balance due.
What happens if you pay late
Pennsylvania charges interest on any tax that is not paid by the deadline. The interest rate is set by the state and changes quarterly — it is currently tied to the federal rate plus a margin. Interest accrues from the due date until you pay, and it compounds daily. A payment that arrives even one day after the deadline will owe interest from the original due date.
The state also charges a failure-to-pay penalty if your payment is late. This penalty is a percentage of the unpaid tax and increases the longer the tax remains unpaid. If you pay within a certain number of days after the deadline, the penalty is smaller than if you wait months. The penalty does not apply if you have a valid reason for the delay — for example, if you filed for an extension — but you must have documentation of that extension.
If you cannot pay the full amount by the deadline, you can still file your return on time and pay what you can, then contact the Department of Revenue about a payment plan. The state offers installment agreements that allow you to pay the balance over several months. Interest and penalties continue to accrue while you are on a payment plan, but setting up a plan shows the state you intend to pay and may reduce the penalty in some cases.
Payment methods compared
| Payment Method | When Money Reaches State | Cost to You | Best For |
|---|---|---|---|
| Online ACH (bank transfer) | 1 business day | No fee | Paying when you file or anytime before deadline |
| Online credit/debit card | Same day | 1.5–2.5% processor fee | Paying close to deadline or earning card rewards |
| Mail check | 5–10 business days | Postage stamp | Paying well before deadline |
| Third-party processor (PayUSA, Official Payments) | Same day to 1 business day | 1.5–2.5% processor fee | Paying by card or after hours |
Tracking your payment and getting a receipt
Every payment method gives you a way to prove you paid. If you pay online, save your confirmation number and any email receipt. If you mail a check, keep a copy of the front and back of the check after it clears your bank — your bank statement shows the check number, amount, and date it cleared. If you pay through a third-party processor, save the confirmation email and the receipt page.
You can also contact the Department of Revenue to verify that your payment was received. Have your Social Security number, the amount you paid, and the date you paid ready. The state's website includes a phone number and mailing address for questions about specific payments. Response times vary, but the state typically answers payment inquiries within two to four weeks if you call or mail a letter.
Frequently Asked Questions
Can I pay Pennsylvania tax by credit card without a fee?
No. The state's online portal charges no fee for ACH bank transfers, but credit and debit card payments always incur a processor fee of 1.5% to 2.5%. Third-party payment processors also charge this fee. If you want to avoid the fee, use a bank transfer instead.
What if I mail my check but the state receives it after the deadline?
Pennsylvania considers a payment late based on when it arrives, not when you mail it. If the check arrives after the deadline, you owe interest and penalties from the due date. To avoid this risk, mail your check at least one week before the deadline, or pay online instead.
Do I have to make quarterly estimated payments if I am self-employed?
Only if you expect to owe more than a certain amount when you file your annual return. The threshold depends on your income and filing status. If you are unsure, contact the Department of Revenue or speak with a tax preparer who knows your situation.
Can I set up a payment plan if I cannot pay the full amount by the deadline?
Yes. File your return on time and pay what you can, then contact the Department of Revenue about an installment agreement. Interest and penalties continue to accrue while you pay in installments, but the state may reduce the penalty if you show you intend to pay.
What is the current interest rate on unpaid Pennsylvania tax?
The rate changes quarterly and is tied to the federal rate plus a margin set by the state. Check the Department of Revenue website or call their office to learn the current rate. Interest accrues daily from the due date until you pay.