Oshkosh Water Utility Help Desk for Bills, Login and Service
Use this guide to pay a City of Oshkosh utility bill, open the official online payment and AquaHawk usage portal, call Utility Billing, check monthly bill dates, understand online fees, start or stop service, handle tenant/landlord billing, request a leak adjustment, review 2026 rates, report emergencies, and find lead-service-line or water-quality help.
Start Here: Choose the Right Oshkosh Utility Action
User need |
Official route |
Prepare first |
Do not miss |
|---|---|---|---|
Pay online / log in |
AquaHawk for usage and payments, or InvoiceCloud for one-time payment. |
Utility account number, service address, payment method, latest bill. |
Registration is not required for one-time payments, but registering allows history, stored payment methods, notifications and AutoPay. |
Pay by phone or check balance 24/7 |
Call 888-412-1013. |
Account number, card/e-check details, amount due. |
Save confirmation number before ending the call. |
Billing question or start/stop service |
Call 920-232-5325. |
Account number, service address, move date, owner/tenant details, final read request. |
Landlord/tenant forms may require advance notice and final-read coordination. |
Mail payment |
City of Oshkosh, PO Box 94350, Palatine, IL 60055-4350. |
Payment coupon, check/money order/cashier’s check. |
Mail is not a fast posting method near a due date or tax-roll deadline. |
In person / after-hours drop box |
City Hall, 215 Church Avenue, Oshkosh, WI 54903-1130. |
Bill, account number, accepted payment method. |
Drop box is available after hours. Avoid placing cash in unattended drop boxes. |
Leak or high usage |
Use AquaHawk alerts and call Utility Billing at 920-232-5325 after repair. |
Repair date, type of leak, who repaired it, where water discharged, occupancy changes. |
Leak adjustment request must be complete and received within 3 months of repair. |
After-hours water emergency |
Call 920-236-5165. |
Address, cross street, leak/no-water/pressure issue, time started. |
Use for active water emergencies outside normal business hours. |
Important Oshkosh rule: the City’s landlord FAQ says Oshkosh Water Utility does not turn water off for non-payment. Instead, delinquent tenant water, wastewater and stormwater balances can roll to the property owner’s tax bill, with monthly interest and a tax-roll charge if not paid by the stated fall deadline.
Official Oshkosh Water Utility Contact Box
City Hall / Utility Billing
Address:
215 Church Avenue
P.O. Box 1130
Oshkosh, WI 54903-1130
City phone: 920-236-5000
Hours: 8:00 AM-4:30 PM
Utility Billing Phones
Billing questions: 920-232-5325
Start/stop service: 920-232-5325
24-hour payment line: 888-412-1013
Water Operations Help
Scheduling meter replacements: 920-232-5336
AquaHawk help: 920-232-5336
After-hour emergencies: 920-236-5165
Payment Mail
Mail payments to:
City of Oshkosh
PO Box 94350
Palatine, IL 60055-4350
Use the payment coupon and account number.
Leak Adjustment / Billing Email
Email shown on forms:
utilitybill@oshkoshwi.gov
Do not email full card or bank details. Use official online, phone, mail or in-person payment routes.
Water Utility Division
The City of Oshkosh Water Utility Division draws water from Lake Winnebago, treats it, and distributes drinking water to more than 66,000 residents and businesses.
Official Oshkosh links:
How to Pay an Oshkosh Water Utility Bill
Payment method |
Official detail |
Best for |
Watch out for |
|---|---|---|---|
AquaHawk / online account |
Register through AquaHawk to make payments and view water usage. |
Customers who want bill payment plus usage monitoring and leak alerts. |
Use the official Oshkosh AquaHawk login, not a generic AquaHawk page. |
InvoiceCloud one-time payment |
One-time payment is available without registration. |
Fast one-time payment when you do not want a stored account. |
Keep the approved number for cards or processed number for e-checks. |
AutoPay ACH/EFT |
Recurring AutoPay using ACH/EFT for utility bills is listed as free. |
Customers who want monthly automatic withdrawal and no one-time e-check fee. |
Confirm the first successful draft before assuming AutoPay is active. |
Phone payment |
Call 888-412-1013, available 24 hours, to pay or check balance. |
Customers who prefer phone pay or need balance access outside office hours. |
Save the confirmation number and account balance readback. |
Mail |
Send cash, check, money order or cashier’s check to City of Oshkosh, PO Box 94350, Palatine, IL 60055-4350. |
Normal bills with enough mailing time. |
Mail is not ideal close to due date, tax-roll deadlines or posting disputes. |
In person |
Pay at 215 Church Avenue, Oshkosh, WI 54903-1130. |
Cash, check, money order, cashier’s check, card, e-check or wallet payment questions. |
Bring account number and bill. Confirm posted amount before leaving. |
After-hours drop box |
Dropbox is available after hours at City Hall. |
Check or money-order payment when City Hall is closed. |
Avoid cash and do not use drop box if you need immediate staff confirmation. |
Digital wallets |
Payment options list Google Pay, PayPal, Venmo and Apple Pay. |
Customers using supported online payment wallets. |
Check the fee and receipt before submitting. |
2026 Online Payment Fees, Caps and Processing Times
Card fee
Credit/debit cards: 2.75% with a $1.95 minimum.
AutoPay e-check
Recurring AutoPay ACH/EFT for utility bills is free.
One-time e-check
One-time utility ACH/EFT payment is $1.95.
Returned item
Failed e-check or credit-card chargeback is assessed a $35 fee.
Fee / rule |
Official detail |
Practical tip |
|---|---|---|
Credit/debit card convenience fee |
2.75% with $1.95 minimum. |
For larger bills, e-check or AutoPay may cost less. |
One-time utility e-check |
$1.95 per transaction. |
Use routing/account numbers carefully to avoid returned-payment fees. |
Utility AutoPay ACH/EFT |
Free for recurring utility AutoPay. |
Best low-cost online route if you want recurring automatic payment. |
Card cap |
$10,000 maximum including fees for real estate tax and utility billing. |
Large accounts may need ACH or another method. |
ACH cap |
$125,000 maximum including fees for real estate tax and utility billing. |
Useful for large balances if your bank information is correct. |
Card settlement |
InvoiceCloud FAQ says card transactions authorize immediately and typically take 48 hours to settle. |
Save authorization proof if account status matters. |
ACH settlement |
ACH transactions typically take 48-72 hours to settle. |
Do not wait until the last moment if posting time matters. |
Payment history |
InvoiceCloud FAQ says 24 months is the standard retention period. |
Download important receipts for tax-roll, closing or landlord disputes. |
AquaHawk, InvoiceCloud, Pay by Text and Bill History
AquaHawk usage tools
- View water usage online.
- Receive leak alerts.
- Set threshold alerts by gallons or dollar amount.
- Monitor usage during the billing cycle.
- Estimate your bill before it arrives.
InvoiceCloud account tools
- Create a secure account.
- Schedule payments in advance.
- Enroll in paperless billing.
- Store multiple payment methods.
- Receive reminders and notifications.
Pay by Text
InvoiceCloud FAQ says customers can enroll in Pay by Text while making a payment or from the account. Bill notifications are sent by text, and customers can pay with the default payment method by replying.
Open the official city route
Start from the City of Oshkosh Utility Billing payment page or use the official AquaHawk / InvoiceCloud links in this guide.
Choose registration or one-time pay
Use one-time payment if you only need to pay today. Register if you want AutoPay, saved methods, reminders, paperless billing, usage views or history.
Check usage if the bill is high
Use AquaHawk to review current-cycle usage and alerts before assuming the bill is a rate problem.
Save proof
Keep the confirmation email or screen. InvoiceCloud confirmation includes account number, invoice number, amount paid and confirmation message.
Oshkosh 2026 Utility Rates, Late Charge and Bill Calculator
Oshkosh water, sewerage and stormwater are billed monthly. The city’s utility-rate page shows water rates effective June 1, 2023, sewerage and stormwater rates effective January 1, 2025, and a 1% per month late payment charge on unpaid bill balances.
Charge type |
Official rate detail shown |
What it means |
|---|---|---|
5/8-inch or 3/4-inch water service charge |
$9.94 monthly. |
Fixed water charge before volume charge. |
5/8-inch or 3/4-inch public fire protection charge |
$4.07 monthly. |
Separate fire-protection charge on the utility bill. |
Water volume, first 1,000 cubic feet |
$6.10 per 100 cubic feet. |
100 cubic feet equals 748 gallons. |
Water volume, next 2,300 cubic feet |
$5.80 per 100 cubic feet. |
Higher usage moves through declining blocks. |
Water volume, next 63,300 cubic feet |
$5.60 per 100 cubic feet. |
Large users should verify tier placement. |
Water volume, over 66,600 cubic feet |
$5.05 per 100 cubic feet. |
Applies after upper threshold. |
5/8-inch or 3/4-inch sewerage service charge |
$12.39 monthly. |
Fixed sewer charge before sewer volume. |
Sewerage volume charge |
$7.12 per 100 cubic feet. |
Check usage and leak adjustments if water and sewer both spike. |
Stormwater |
$20.32 per ERU, with residential ERU categories based on impervious area. |
Stormwater can appear even when water usage is low. |
Late payment charge |
1% per month of the bill balance after due date. |
Pay by due date or resolve missing payments quickly. |
2026 Billing Calendar, Due Dates and Districts
Monthly bill districts
Oshkosh publishes 2026 utility billing calendars by district. Each district has its own meter-reading date, bill date and due date.
Due date matters
A 1% per month late charge applies when bills are not paid by the due date.
Find your district
Use the bill schedule page or your statement to match your district and due date before assuming a neighbor’s due date is yours.
Example: the 2026 District 1 calendar shows January usage billed January 15 with a February 5 due date; District 2 has a different monthly schedule. Always use your exact billing district and statement due date.
Tenant, Landlord, Tax Roll and Final Reading Rules
Unpaid tenant bills
The City says delinquent tenant water bills can roll to the owner’s property taxes in November if not paid by the deadline. Landlords receive delinquent notices.
Interest and tax-roll charge
Landlord FAQ says interest of 1% is applied monthly to the past-due balance, and a 10% tax-roll charge can apply to the balance eligible to transfer.
Tenant agreement
Landlord/tenant utility forms let a tenant accept responsibility for utility charges during occupancy, while also giving the landlord delinquency notice.
Situation |
Oshkosh rule / practical detail |
What to do |
|---|---|---|
Tenant does not pay |
Oshkosh does not turn water off for non-payment. Delinquent notices go to landlords, and unpaid balances can transfer to property taxes. |
Landlords should monitor balances and lease language. |
Tax roll transfer |
Landlord FAQ says the owner is notified by mail in October for the amount eligible to transfer if not paid by November 15, and a 10% charge can apply if not paid by November 1. |
Pay or resolve the amount before fall deadlines. |
Between tenants |
Landlord FAQ says when between tenants, the water bill is put into the owner’s name without a service initiation fee. |
Confirm the tenant moving out scheduled a final reading. |
Tenant does not apply for service |
An owner can set up the water bill account under a tenant’s name if the tenant has not contacted the utility; the tenant receives notice. |
Call Utility Billing with owner and tenant details. |
Final read request |
Landlord/tenant agreement materials reference providing final-read requests at least 3 business days before the final reading date to avoid billing discrepancies. |
Submit move-out/final-read details early. |
High Bill, Leak Detection and Leak Adjustment
AquaHawk alerts
Set threshold alerts by gallons or dollar amount and monitor usage during the billing cycle.
Flow finder
Oshkosh says every meter has a flow finder, either a blue spindle or black triangle, that moves when even small amounts of water are being used.
3-month deadline
Leak adjustment forms must be complete and received within 3 months of repair.
Last 3 bills
The credit only applies to the last three billing periods ending with the repair date.
Leak / high-bill check |
What Oshkosh says to check |
What to save |
|---|---|---|
Toilet leak |
Listen for running water, sticky handles or silent leaks. Add food coloring to tank; if color appears in bowl within 30 minutes, toilet may be leaking. |
Test result, repair date, parts receipt, plumber invoice. |
Meter test |
Read the meter before leaving while nobody is home. If the reading changes when no water was used, a leak may exist. |
Before/after photos, dates and times. |
Flow finder movement |
Blue spindle or black triangle moves even with small water use. |
Short video/photo if safe and visible. |
Faucet drip |
Oshkosh says one drip per second can waste about 2,700 gallons per year. |
Repair proof and estimated start/end date. |
Leak adjustment eligibility |
A repair must be completed; turning water off is not considered a repair. |
Type of leak, date repaired, who repaired it, where water discharged, duration, occupancy, usage changes. |
Bill still high after repair |
Use AquaHawk and call 920-232-5325 after repair. |
Current usage screenshot, repair proof, account number. |
Water Quality, Lead Service Lines and PFAS Information
Lake Winnebago source water
Oshkosh Water Utility draws water from Lake Winnebago and distributes treated drinking water to residents and businesses.
Lead service lines
Oshkosh says lead is not in Lake Winnebago source water or water leaving the treatment plant, but lead can enter from plumbing and service-line materials. The City has lead service line inspection and replacement resources.
PFAS testing
Oshkosh posts PFAS information and notes UCMR 5 testing requirements for public water utilities.
Concern |
Official route |
What to check |
|---|---|---|
Annual water-quality report |
Water Utility resources / Consumer Confidence Water Report. |
Detected substances, source water, treatment, compliance and contact details. |
Lead service line status |
Water Utility lead service line pages, inspection signup and replacement resources. |
Private-side material, public-side material, inspection letter, replacement eligibility. |
Lead financial assistance |
Lead Line Financial Assistance Program. |
Eligible lead/galvanized/brass private-side service line, assistance limits and contractor requirements. |
PFAS questions |
PFAS Compounds and PFAS Information pages. |
Current testing notes, sample results and city updates. |
Water emergency / treatment plant question |
Call after-hours emergency or Water Filtration Plant route as directed on city pages. |
Address, water quality concern, time started, whether neighbors are affected. |
Water Emergency, Meter Replacement or Service Card on Door
After-hours emergencies
Call: 920-236-5165
Use for active water emergencies outside normal office hours.
Meter replacement
Call: 920-232-5336
Use if you received a meter-replacement request or need AquaHawk/meter help.
Card on your door
The Utility Billing FAQ says a card may be left to request that the resident call the utility office to schedule access to the meter.
Issue |
Call / action |
Say this |
|---|---|---|
Water main break or major leak |
After hours: 920-236-5165. During business hours, call city/utility routing. |
“Water is flowing/bubbling at [address/cross street]. It started [time].” |
No water / low pressure |
Call utility/water emergency route depending on time and severity. |
“Low/no water affects [one fixture/whole home/neighbors].” |
Meter replacement card |
Call 920-232-5336. |
“I received a meter replacement/scheduling card at [address].” |
Meter access card |
Call Utility Billing / meter scheduling as directed on the card. |
“A card was left for meter access. What appointment times are available?” |
Life safety emergency |
Call 911. |
Use for injury, fire, immediate danger or unsafe conditions. |
Oshkosh WI Water Utility vs Oshkosh Nebraska, Town, Apartment or Private Billing
If your bill says… |
Likely route |
Verify before paying |
|---|---|---|
City of Oshkosh, Wisconsin / Oshkosh Water Utility |
Use OshkoshWI.gov, AquaHawk, InvoiceCloud, 920-232-5325, 888-412-1013 or 215 Church Avenue. |
Account number, service address, billing district and due date. |
City of Oshkosh, Nebraska |
Use the Nebraska city utility route, not OshkoshWI.gov. |
State, city logo, mailing address and phone number. |
Town of Oshkosh / sanitary district / private provider |
Use the provider printed on the bill. |
Provider name, address and account format. |
Apartment, landlord or HOA |
Use lease, landlord, resident portal or property manager instructions unless the City bills you directly. |
Whether the account is in tenant name, owner name or master-metered. |
Winnebago Area Sanitary District or other regional service |
Use that district’s own billing contact. |
Do not force payment into City of Oshkosh portal if the account is not found. |
Portal check: if AquaHawk or InvoiceCloud cannot find your account, stop and call Utility Billing. Do not keep trying random account numbers or pay through an unofficial search result.
Oshkosh Water Utility Billing Map
Use the map for City Hall / Utility Billing at 215 Church Avenue. Call first if your question involves a final reading, landlord/tenant account, leak adjustment, tax-roll transfer, meter replacement, payment tracing or emergency.
Route |
Address / phone |
Use for |
Important note |
|---|---|---|---|
Utility Billing / City Hall |
215 Church Avenue, Oshkosh, WI 54903-1130; 920-232-5325 |
Billing, start/stop service, final reads, leak adjustment, landlord/tenant accounts. |
City hours listed as 8:00 AM-4:30 PM. |
24-hour payment line |
Pay by phone and check balance 24/7. |
Save confirmation number. |
|
Payment mail |
City of Oshkosh, PO Box 94350, Palatine, IL 60055-4350 |
Mail check, money order or cashier’s check. |
Use payment coupon and allow mailing/posting time. |
Meter replacement / AquaHawk |
Meter replacement scheduling, AquaHawk help and water usage alerts. |
Call if a card was left for meter access. |
|
After-hours emergency |
Water emergency outside normal hours. |
For life safety, call 911. |
Oshkosh Water Utility FAQ
How do I pay my Oshkosh Water Utility bill online?
Use the official City of Oshkosh online payment routes. AquaHawk lets customers register, pay and view water usage. InvoiceCloud also supports one-time payment without registration, plus account features such as scheduled payments, paperless billing, Pay by Text, stored payment methods and reminders.
What is the Oshkosh utility billing phone number?
Call 920-232-5325 for billing questions and starting or stopping service. The City’s 24-hour automated payment line is 888-412-1013.
Where is the Oshkosh Utility Billing office?
Utility Billing is at City Hall, 215 Church Avenue, Oshkosh, WI 54903-1130. The City also lists P.O. Box 1130, Oshkosh, WI 54903-1130, and general phone 920-236-5000.
Where do I mail an Oshkosh utility bill payment?
Mail payments to City of Oshkosh, PO Box 94350, Palatine, IL 60055-4350. Include the payment coupon and account number, and allow time for delivery and posting.
What are the Oshkosh online payment fees?
For utility billing, credit/debit cards are 2.75% with a $1.95 minimum. One-time utility e-check payments are $1.95. Recurring AutoPay ACH/EFT for utility bills is free. Failed e-check payments or credit-card chargebacks are assessed a $35 fee.
Does Oshkosh shut off water for nonpayment?
The City’s landlord FAQ says Oshkosh Water Utility does not turn water off for non-payment. Delinquent water, wastewater and stormwater balances can instead roll to the owner’s property taxes, with interest and possible tax-roll charges.
What is AquaHawk for Oshkosh water customers?
AquaHawk lets Oshkosh customers view water usage, receive leak alerts, set threshold alerts by gallons or dollar amount, monitor current-cycle usage and estimate bills during the billing cycle.
Can I get a leak adjustment?
Possibly. A repair must be completed, and the leak adjustment application must be complete and received by Utility Billing within 3 months of the repair. The credit can only apply to the last three billing periods ending with the repair date.
What is the Oshkosh after-hours water emergency number?
For after-hours emergencies, call 920-236-5165. For meter replacements or AquaHawk/meter help, call 920-232-5336.
Where can I find Oshkosh water quality and lead service line information?
Use the City of Oshkosh Water Utility pages for Consumer Confidence Water Reports, lead service line information, financial assistance for lead service line replacement, PFAS information and Water Utility resources.
30-Second Oshkosh Water Utility Checklist
Pay/login: use AquaHawk or InvoiceCloud from the official City of Oshkosh utility billing page.
Phone: billing/start-stop 920-232-5325; 24-hour payment line 888-412-1013; meter/AquaHawk 920-232-5336; after-hours emergency 920-236-5165.
Office: 215 Church Avenue, Oshkosh, WI 54903-1130.
Mail payment: City of Oshkosh, PO Box 94350, Palatine, IL 60055-4350.
Fees: card 2.75% with $1.95 minimum; one-time utility e-check $1.95; utility AutoPay ACH/EFT free; returned/chargeback fee $35.
Late balance: 1% per month late charge applies after due date; tenant delinquencies can transfer to property taxes.
High bill: use AquaHawk, check meter flow finder, test toilets, repair leaks, and submit leak adjustment within 3 months of repair.
Provider check: this guide is for City of Oshkosh, Wisconsin, not Oshkosh Nebraska or a town, apartment, HOA or sanitary district bill.
Editorial Team
WaterBillGuide.us
The content on WaterBillGuide.us is researched and prepared by our editorial team. Our writers and researchers review publicly available information from official utility websites and service portals to create clear, step-by-step informational guides.
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