Biller name
Ameren
HQ: St. Louis, MO
Legal name
Ameren Illinois Missouri
Website
Deferit is unaffiliated with Ameren
Pay your Ameren bill with Deferit
Earn 2% cashback on every bill you pay with Deferit.
Financing Option
Deferit can pay your bill now, then you pay it back later.
How to pay Payment methods Support FAQ Split into installments
Ameren Account & Billing Support
| Department | Number / Channel |
|---|---|
| Customer Service - Illinois Main | 800-755-5000 |
| Customer Service - Missouri | 800-552-7583 |
| TTY Line | 800-735-2966 |
| 711 Relay | 711 |
Retrieved June 2026 · Source: ameren.com/contact-us · current departmental phone numbers and hours of operation.
About Ameren
Ameren Corporation is an American power company that distributes electricity and natural gas to residential and commercial customers across central and eastern Missouri and the southern portions of Illinois. The company serves 2.4 million electric customers and 900,000 natural gas customers across its service territories. Ameren operates through multiple subsidiaries including Ameren Missouri and Ameren Illinois.
Ameren bills commonly include electricity charges (generation, transmission, distribution, and taxes), natural gas charges (commodity, delivery, and taxes), and seasonal adjustments for heating or cooling usage. Deferit is unaffiliated with Ameren.
How to Pay Your Ameren Bill
- Online: Visit ameren.com, log in, select "Make a Payment" and enter payment details. Accepts credit/debit cards and electronic checks. Processes instantly.
- Phone: Call 800-552-7583 (automated system) to pay with debit/credit card or bank account. $2.50 convenience fee per transaction.
- Phone: Call 888-777-3108 (Speedpay) to pay by electronic check, debit, or credit card. Same-day credit.
- Mail: Mail checks or money orders to: Ameren, PO Box 88034, Chicago IL 60680-1034. Allow 7-10 days for processing.
- In-Person: Over 350 authorized payment locations across Illinois and Missouri. Find locations at AmerenAgents.com by zip code. Accepts cash, money order, credit/debit cards.
- Auto-Pay: Set up automatic monthly withdrawal from your bank account.
- Budget Billing: Fixed monthly payment option based on average usage.
- With Deferit: pay now and split into 4 installments, once every two weeks. Learn more →
Payment Methods & Addresses
Retrieved June 2026 · Source: ameren.com/contact-us.
Need to split your Ameren bill into installments?
Retrieved June 2026 · Source: ameren.com.
| Ameren payment arrangement |  Deferit | |
|---|---|---|
| How to access | Check Ameren's online account, payment portal, or customer support team for available payment arrangement options. | Sign up, take a picture of your bill, and Deferit pays it on your behalf. Online or in app. |
| Maximum split | If Ameren offers payment arrangements, limits are set by Ameren based on your account status. We couldn't verify a published maximum split. | 4 installments, once every two weeks, up to your Deferit balance |
| Eligibility & approval | Decided by Ameren at request time based on account status | Monthly Deferit membership, no lock-ins. Cancel anytime. |
| Fees & interest | Fees and interest were not published in the sources reviewed. Check Ameren's payment portal or support team before setting up an arrangement. | Monthly Deferit membership plus a $0.99 processing fee per bill. No interest. No late fees on eligible Deferit memberships.* |
| If you miss a payment | Missed-payment consequences are set by Ameren and may include late fees, service interruption, or collection activity depending on your account. | You can reschedule a repayment date in the app before it's due. Late fees may apply depending on your Deferit membership.* |
| Works for | Ameren bills only | Ameren and most other US household bills |
| Learn more → |
*No late fees feature included with Max and Ultra memberships. Installments on the Lite membership may incur late fees if overdue. See Membership terms for details.
Pay your Ameren bill with Deferit
Earn 2% cashback on every bill, redeemed off your next payment. No subscription fee.
Common Questions About Ameren
Can I use Deferit to pay my Ameren bill? ›
Yes. Enter your Ameren bill amount in Deferit and we pay Ameren in full right away. You repay us in 4 bi-weekly installments.
What payment methods does Ameren accept? ›
Ameren typically accepts online payments via credit card, debit card, or bank transfer. Visit ameren.com or contact their support team for the most up-to-date options.
Does Ameren offer autopay? ›
Most billers offer automatic payment to help avoid late fees. Visit Ameren's website or app to check whether autopay is available and how to enroll.
What do I do if I can't pay my Ameren bill on time? ›
Contact Ameren directly to ask about payment arrangements or hardship assistance programs. Deferit can also help — split your bill into 4 payments to ease the immediate financial pressure.
Updated: June 2026