Metropolitan St.Louis Sewer District Bill Pay: MSD Portal, Phone & Mail Guide

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The Metropolitan St. Louis Sewer District (MSD Project Clear) bills customers for sewer and stormwater services in the greater St. Louis area.
You can pay your MSD bill online (SmartPay portal), via mobile app, by phone, by mail, and in person.

MSD Bill Pay – Current Payment Option

1. Pay Online with SmartPay (Primary)

From your online account you can:

  • View bills and account summary
  • Make one‑time payments
  • Set up and manage recurring payments
  • Pay one or multiple accounts in a single transaction

How it works (current flow):

  • Register for Online Customer Care and add your sewer account(s) to your user ID.
  • Click “Online Bill Payment” (near the top of the page).
  • Use “Pay/View Bills” to:
    • View current bills
    • Click “Pay” to select amount and payment date
  • Choose to Pay Now, Pay on Due Date, or Pay on Other Date.

Accepted methods (online):

  • Checking / savings account (e‑check)
  • Credit card: Visa, Mastercard, Discover, American Express (for one‑time payments)

You can pay your balance in full any time from your bank account or make a one‑time card payment.

2. MSD Bill Pay Mobile App

  • App name: MSD Bill Pay
  • Platform: Apple App Store (and historically Android)

Key features:

  • Pay your bill or view account summary at your convenience
  • Access billing accounts linked to your MSD profile
  • Sign in using the same credentials as your MSD online profile

You must first sign up for a profile at the STL MSD website (SmartPay / Online Customer Care). All customers with an MSD sewer account are welcome to use the app.

3. Pay by Phone

  • Billing Customer Service / Pay‑by‑Phone: 1‑866‑281‑5737

You can:

  • Pay using your bank account (e‑check)
  • Pay with a credit or debit card

If you cannot pay online, MSD specifically says to call 1‑866‑281‑5737 or try again later.

4. Pay by Mail

Mail your payment to the current MSD remittance address (from recent MSD resources):

Metropolitan St. Louis Sewer District
P.O. Box 437
St. Louis, MO 63166‑0437

Instructions:

  • Detach the payment stub from your paper bill
  • Write your MSD account number if paying by money order
  • Make your check or money order payable to MSD
  • Mail 7–10 days before the due date to avoid late fees

5. In‑Person & Other Options

  • Walk‑in / pay in person:
    • Pay at MSD’s office or at designated payment locations (check your bill or MSD website).
  • Third‑party bill pay (doxo):
    • You can pay MSD via doxo using a card or bank account.
    • doxo may charge service fees and payments may take longer to post; your bill is not paid until MSD receives the money.

About MSD SmartPay (Details)

SmartPay is MSD’s online bill payment system that lets you:

  • Make one‑time or recurring payments
  • Store payment accounts (bank or card)
  • Pay multiple MSD accounts at once

Examples of common actions inside SmartPay:

  • Make a payment:
    • Click “Online Bill Payment” → “Pay/View Bills” → select account → Search → select “Pay” → choose amount, date, and payment account → Save.
  • Establish recurring payments:
    • Click “Online Bill Payment” → “Set Recurring Payments” → add a new recurring payment, selecting amount, frequency, and payment method.
  • Make a single payment for multiple accounts:
    • Click “Online Bill Payment” → “Pay/View Bills” → under account number select “All” → Search → check the bills → “Pay Select” → set amount and date → Submit.
  • Cancel recurring payments:
    • Click “Online Bill Payment” → “Set Recurring Payments” → click DELETE for the payment you wish to cancel → confirm.
    • Allow up to 30 days for the change to take full effect.

MSD Billing & Late Fees

  • If your bill is not paid by the due date, you are subject to late fees.
  • MSD’s SmartPay FAQ notes a .75% late fee on the past‑due balance (older sources mention 10% – always check your current bill for the exact fee).
  • If you are unable to pay by the due date, call Customer Service at 1‑866‑281‑5737 to discuss options.

Metropolitan St.Louis Sewer District Bill Pay – FAQs (Updated)

How do I pay my Metropolitan St. Louis Sewer District bill online?

  • Go to the MSD online portal: https://myaccount.stlmsd.com/MSDSSP/Index.aspx
  • Register or log in with your user ID and password
  • Click “Online Bill Payment” → “Pay/View Bills”
  • Select your account, choose amount, payment date, and payment method, then submit.

How do I sign up to pay my MSD bill online?

  • Register for Online Customer Care on the MSD account portal:
    https://myaccount.stlmsd.com/MSDSSP/Index.aspx (click “Sign up now”)
  • Add your MSD sewer account to your user ID
  • Once added, click “Online Bill Payment” to access SmartPay.

Can I schedule automatic payments (recurring)?

Yes.

  • In SmartPay, click “Online Bill Payment” → “Set Recurring Payments”
  • Add a new recurring payment with desired amount, frequency, and method
  • You can cancel recurring payments later through the same menu.

Can I pay multiple MSD accounts at once?

Yes.

  • In “Pay/View Bills”, select account number “All”, then Search
  • Check the bills you want to pay and click “Pay Select”
  • Enter the amounts and date, and submit a single combined payment.

What payment methods does MSD accept online?

  • Bank accounts: checking or savings (e‑check)
  • Credit/debit cards: Visa, Mastercard, Discover, American Express (for one‑time payments)

Check the SmartPay interface for any card fees or restrictions.

When is my payment processed and credited?

For bank account payments:

  • Choices on the payment page: Pay Now, Pay on Due Date, or Pay on Other Date
  • A payment initiated before noon Central Time on a business day is usually credited the same business day, but your bank’s processing time may vary.

To avoid late charges, pay on or before the due date shown on your bill.

What if I can’t pay my MSD bill by the due date?

  • You may be charged a late fee (commonly .75% of the past‑due balance).
  • If you’re unable to pay, contact a Customer Service Professional at 1‑866‑281‑5737 as soon as possible to discuss your options and avoid further penalties.

How do I recover a forgotten User ID or password for MSD SmartPay?

If you still have trouble, contact Billing Customer Service at 1‑866‑281‑5737 or email [email protected].

Is there an MSD Bill Pay mobile app?

Yes.

  • MSD Bill Pay app (by Vertex Business Services) is available in the Apple App Store:
    • Lets you pay your bill and view account summary on your phone
    • Accesses billing accounts linked to your MSD profile

You must sign up for an MSD profile on the website first.

Can I still pay by mail?

Yes.

  • Mail your check or money order (with payment stub) to:Metropolitan St. Louis Sewer District
    P.O. Box 437
    St. Louis, MO 63166‑0437
  • Mail 7–10 days before the due date to ensure on‑time delivery.

Can I pay my MSD bill through doxo or other third‑party services?

Yes, MSD is listed as a biller on doxo, and you can pay with card or bank account.
However:

  • Fees may apply
  • Payments may take extra days to reach MSD

For urgent or same‑day payments, use SmartPay online, the MSD Bill Pay app, or pay by phone at 1‑866‑281‑5737.

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