Where to pay your LabCorp bill and what payment methods work

LabCorp accepts payments through their patient portal, by phone, by mail, or in person at a LabCorp patient service center. The fastest route is usually the online portal at labcorp.com — you can log in with your account credentials, see what you owe, and pay by debit card, credit card, or bank account transfer in minutes. If you do not have a portal account, you can create one using your date of birth and a lab order or test result number.

If you prefer not to use the portal, you can call LabCorp's patient billing line at 1-800-LAB-CORP (1-800-522-2677) to pay by phone with a debit or credit card. Payments by mail should be sent to the address printed on your bill, and you should include your account number or the barcode from your statement so LabCorp can match the payment to your account. Payments made in person at a local LabCorp center are also accepted, though not all locations have billing staff on-site — call ahead to confirm.

Key Takeaways

  • The LabCorp patient portal at labcorp.com is the fastest way to pay and shows your balance and payment history in real time.
  • You can pay by phone at 1-800-522-2677, by mail to the address on your bill, or in person at a LabCorp patient service center.
  • LabCorp accepts debit cards, credit cards, and bank account transfers, but fees may apply depending on your payment method.
  • If you cannot pay the full balance, contact LabCorp's billing department to ask about payment plans or financial hardship options.

Setting up a LabCorp patient portal account

To use the online portal, go to labcorp.com and select "Sign In" or "Create Account." You will need your date of birth and either a lab order number, test result number, or account number — these appear on any paperwork LabCorp sent you after your test. If you do not have these numbers, call 1-800-522-2677 and a representative can help you locate them or create an account over the phone.

Once your account is active, you can view all your bills, see which ones are paid and which are outstanding, set up automatic payments, and download statements. The portal also stores your test results and lets you message LabCorp's billing team if you have questions about a charge.

Understanding what appears on your LabCorp bill

Your LabCorp bill lists the specific tests you had done, the charge for each test, any insurance payments already made, and what you owe out of pocket. The amount you owe depends on your insurance coverage — if you have insurance, LabCorp bills them first, and you receive a separate statement showing your patient responsibility (the part you pay). If you do not have insurance, you are responsible for the full charge.

LabCorp bills are usually sent 7 to 14 days after your test. If you do not receive a bill but know you had a test, log into your portal to check your account balance, or call 1-800-522-2677 to request a statement. Bills typically remain due within 30 days, though this can vary depending on your insurance or any payment arrangement you have made.

Payment plans and financial hardship options

If you cannot pay your bill in full, LabCorp offers payment plans that let you split the balance into smaller monthly payments. To set up a payment plan, contact LabCorp's billing department at 1-800-522-2677 and explain your situation. A representative can discuss what monthly amount works for your budget and set up automatic payments so you do not have to remember to pay each month.

LabCorp also has a financial hardship program for patients with low income or significant medical debt. The program is not automatic — you have to ask about it — but if you may have access to, LabCorp may reduce or waive your bill. When you call, ask specifically about hardship assistance and be prepared to discuss your household income and expenses. The decision usually takes a few business days.

What happens if you do not pay your LabCorp bill

If your bill remains unpaid after 30 days, LabCorp may send your account to a collection agency. Once that happens, the debt appears on your credit report and a collector may contact you by phone or mail. Collection accounts can lower your credit score and stay on your report for up to seven years, even after you pay.

Before your account reaches collections, LabCorp will send you reminder notices and may call you. If you receive a collection notice, you have the right to request written proof that the debt is yours. If you believe the bill is wrong, you can dispute it in writing within 30 days of receiving the collection notice. Paying the debt or setting up a payment plan stops collection calls, though the account may still appear on your credit report.

Disputing a charge on your LabCorp bill

If you believe a charge is incorrect — for example, if you were billed for a test you did not have, or if the amount seems wrong — contact LabCorp's billing department in writing. Include your account number, the date of service, the test name, and an explanation of why you think the charge is wrong. Send your dispute to the address on your bill or use the messaging feature in your patient portal.

LabCorp has 30 days to respond to your dispute. During that time, the charge remains on your bill, but you do not have to pay it while the dispute is being reviewed. If LabCorp agrees the charge was wrong, they will issue a credit to your account. If they disagree, they will explain their reasoning in writing.

Insurance and out-of-pocket costs

Your out-of-pocket cost depends on your insurance plan and whether LabCorp is in your plan's network. In-network tests usually cost less because your insurance has negotiated a lower rate with LabCorp. Out-of-network tests can cost significantly more. Before your test, ask LabCorp whether they are in-network for your insurance, and ask your insurance company what your cost-sharing will be (your deductible, copay, or coinsurance).

If you had an out-of-network test or your insurance denied coverage, you may owe more than you expected. In that case, contact LabCorp's billing department to explain the situation — they sometimes reduce bills for out-of-network patients or work with your insurance to appeal a denial. It is worth asking, especially if the bill is large.

Frequently Asked Questions

Can I pay my LabCorp bill with a credit card online?

Yes. The LabCorp patient portal accepts Visa, Mastercard, American Express, and Discover. You can also pay by debit card or bank account transfer through the portal. If you pay by credit card, LabCorp does not charge a processing fee, but your credit card company may charge interest if you carry a balance.

What if I do not know my LabCorp account number?

Call 1-800-522-2677 and provide your date of birth and the date of your test. A representative can look up your account and either give you the number or help you create a portal account. You can also check any paperwork LabCorp sent you after your test — the account number is usually printed on the results or bill.

How long does it take for a LabCorp payment to show up on my account?

Online and phone payments usually post within one business day. Mailed payments take 7 to 10 business days to arrive and be processed. If you are close to a collection deadline, pay online or by phone to ensure the payment reaches LabCorp in time.

Can LabCorp take money directly from my bank account?

Yes. You can set up automatic payments through the patient portal or by calling 1-800-522-2677. You will need your bank account number and routing number. Automatic payments are deducted on the date you choose each month and can help you avoid late fees and collection calls.

What if my insurance should have covered the bill but LabCorp billed me instead?

Contact LabCorp's billing department and provide your insurance information. LabCorp can resubmit the claim to your insurance. If your insurance approves it after the fact, LabCorp will issue you a credit. This process usually takes 30 to 60 days, so follow up if you do not see a credit within that timeframe.