How to Pay Your Miami-Dade Water Bill Online and by Mail

The fastest way to pay Miami-Dade Water is through their online portal or by phone

Miami-Dade Water and Sewer Department lets you pay your bill through their website at miamidade.gov/water, by phone at 305-668-9282, or by mailing a check. Online payment is the quickest option — you can pay when ready and see confirmation right away. If you pay by phone, a representative will walk you through your account number and payment method. Mailed checks take 7 to 10 business days to reach the department and post to your account, so mail early if your due date is coming up.

You do not need to set up an account to make a one-time payment, though creating one lets you see your bill history and set up automatic payments. Your account number appears on your water bill — it is a 10-digit number that starts with your property address or account identifier.

Key Takeaways

• Pay online at miamidade.gov/water using your account number and a debit card, credit card, or bank account.
• Phone payments go through the same day you call 305-668-9282, but you will need your account number and payment method ready.
• Mailed checks should arrive at least 10 days before your due date to avoid a late fee.
• Setting up automatic payments through the online portal prevents missed payments and takes about five minutes.

Paying online through the Miami-Dade Water website

Go to miamidade.gov/water and look for the "Pay My Bill" or "Online Bill Pay" link on the homepage. Click it and enter your 10-digit account number. The system will pull up your current balance and due date. You can then choose to pay the full amount, a partial amount, or set up a recurring payment.

For payment method, Miami-Dade Water accepts debit cards, credit cards, and bank account transfers (ACH). Credit card payments may carry a processing fee — the website will show you the fee amount before you confirm. Debit card and ACH payments typically have no fee. After you submit payment, you will receive a confirmation number on screen and by email. The payment posts to your account within one business day.

If you want to avoid logging in each time, create a free online account during your first payment. You can then save your payment method, view your bill history, and set up automatic monthly payments so the bill is paid on the same day each month.

Paying by phone with a Miami-Dade Water representative

Call the Miami-Dade Water customer service line at 305-668-9282. A representative will ask for your account number and verify your identity by asking for your service address or the last four digits of the phone number on file. Have your account number ready — it is printed on your bill.

Tell the representative the amount you want to pay. They will ask whether you want to pay with a debit card, credit card, or bank account. Provide the payment information and the representative will process it when ready. You will receive a confirmation number over the phone and can ask the representative to email or mail a receipt if you need one for your records.

Mailing a check to Miami-Dade Water

Write your check to "Miami-Dade County" and include your account number on the memo line. Mail it to the address printed on your bill — this address changes depending on which Miami-Dade Water office handles your account. Do not mail to a general county address; use the address on your bill.

Mail your payment at least 10 business days before the due date. The postal service typically takes 3 to 5 business days, and Miami-Dade Water needs 2 to 5 additional days to process and post the payment. If your check arrives after the due date, you may be charged a late fee even though you mailed it on time. If you are cutting it close, pay online or by phone instead.

Setting up automatic payments to avoid missed bills

The easiest way to set up automatic payments is through the online portal at miamidade.gov/water. Log into your account, go to "Billing" or "Payment Options," and select "Automatic Payment" or "Recurring Payment." Choose whether you want the full bill amount or a set dollar amount to be charged each month, and pick the day of the month you want it to happen.

You can change or stop automatic payments anytime through your online account. If you do not have online access, call 305-668-9282 and ask a representative to set it up over the phone. Automatic payments are deducted from your bank account or charged to your card on the date you choose, usually 5 to 7 days before the bill is due.

What to do if you miss a payment or receive a late notice

If your payment is late, Miami-Dade Water will add a late fee to your next bill. The amount of the fee depends on your bill size and is shown on your notice. If you receive a late notice, pay as soon as you can — the sooner you pay, the less interest will accrue. You can pay online, by phone, or by mail using the same methods described above.

If your service is at risk of being shut off, call 305-668-9282 when ready. Miami-Dade Water typically gives notice before disconnection, but calling right away gives you the best chance to work out a payment plan or discuss hardship options. Some customers may be able to set up a payment arrangement to catch up over time rather than paying the full amount at once.

Frequently Asked Questions

Can I pay my Miami-Dade water bill with a credit card online?

Yes, but Miami-Dade Water charges a processing fee for credit card payments — usually 2 to 3 percent of the payment amount. The fee is shown before you confirm payment. Debit cards and bank account transfers (ACH) do not carry a fee, so those are cheaper options if you have them available.

What if I do not have my account number?

Your account number is on your water bill. If you do not have a recent bill, call 305-668-9282 and provide your service address. A representative can look up your account number and help you pay over the phone. You can also create an online account at miamidade.gov/water using your service address.

How long does it take for an online payment to show up on my account?

Online payments post within one business day. You will see a confirmation number when ready after you submit, but the payment may not appear in your account balance until the next day. If you need the payment to post the same day, call 305-668-9282 to pay by phone instead.

Can I set up automatic payments if I do not have an online account?

Yes. Call 305-668-9282 and ask a customer service representative to set up automatic payments over the phone. They will need your account number and your bank account or card information. You can manage or cancel the automatic payment anytime by calling back or by creating an online account later.

What happens if I overpay my water bill?

If you pay more than you owe, the extra amount becomes a credit on your account and will be applied to your next bill. If you want a refund instead of a credit, call 305-668-9282 and request one. Refunds typically take 2 to 4 weeks to process.