Aazly
Built for water districts- What it does:
- Billing and customer-portal platform built specifically for water districts, an admin portal for district teams plus a branded ratepayer portal.
- Best for:
- Districts that want both an admin back office and a customer-facing portal in one platform.
Aazly pairs an admin portal, where teams configure billing, onboard customers, and oversee payments, with a customer portal hosted on the district's own subdomain, where ratepayers pay bills, set autopay, and view usage 24/7. Payments are PCI-compliant and support card, ACH, check, and cash, with funds going straight to the district's account. It serves municipal water departments, irrigation districts, and special districts.
WUBS (Water Utility Billing Software)
- What it does:
- Fully hosted billing system for rural water districts, covering meter reading through payment collection.
- Best for:
- Rural districts where one clerk runs billing and needs a no-IT, end-to-end system.
WUBS connects field meter reading to office billing with GPS-verified mobile readings, tiered water rates, oldest-first payment application, 5-bucket aging, and a 24/7 customer portal. It's positioned squarely against 'the billing process lives in one person's head,' with board-ready reporting and daily backups.
Muni-Link
- What it does:
- Cloud customer information system (CIS) dedicated to water and sewer utility billing.
- Best for:
- Water/sewer districts wanting an automated meter-to-cash CIS with strong mail handling.
Muni-Link automates invoicing, notices, service orders, and payment posting, with AMI/AMR imports, complex rate support, integrated payments, and a customer portal. Its billing is CASS-certified to cut undeliverable mail, and it integrates with GIS, accounting, and meter software.
The Utility Biller
- What it does:
- Complete billing and CIS platform for small municipal and rural water systems, with a genuine free tier.
- Best for:
- Small systems on a shoestring budget that still want a modern portal.
A strong value play: full CIS, meter management, flexible rate configuration, Stripe-powered payments, collections, and a branded self-service portal. The free plan (up to 500 accounts) makes it accessible to the smallest systems; paid tiers remove the customer convenience fee and add collections automation and field ops.
WaterWorksPro
- What it does:
- Modern water utility billing for small communities, with AI-assisted data migration.
- Best for:
- Small towns (500–10,000 accounts) wanting fast setup and simple pricing.
WaterWorksPro covers tiered water/sewer billing, automated late fees, route generation with a live field map, a citizen portal with AutoPay, and AI-driven spreadsheet import. Founder-led support and pricing under common bid thresholds make it easy for small boards to approve.
Spigot
- What it does:
- Billing software purpose-built for mutual water companies and shareholder management.
- Best for:
- Mutual water companies that bill shareholders and need property-transfer tracking.
- Pricing:
- One-time setup + monthly (source)
Spigot handles smart billing, payment tracking, shareholder/service-connection records, and usage analytics, plus a Spigot Field iOS app with camera OCR, GPS, and offline mode. Flat pricing with unlimited accounts and meter reads suits growing companies that dislike module upsells.
Watervize
- What it does:
- Irrigation district management and billing built for agricultural water complexity.
- Best for:
- Irrigation districts with tiered volumetric, seasonal, and source-based rates.
Watervize speaks irrigation's language, acre-feet, CFS, and duty, with 9 base rate types and 8 rate modifiers covering volumetric, time-of-use, source-based, and field-size assessments. It includes a customer billing portal, collections, security deposits, and general-ledger integration for districts generic billing software can't handle.
Black Mountain Software
- What it does:
- Utility billing within a broader local-government ERP, for municipalities and special districts.
- Best for:
- Special districts that want utility billing alongside fund accounting and permitting.
- Pricing:
- ~$25K–$75K implementation (source)
A 30+ year vendor for small-to-mid local governments, BMS handles nearly any rate structure and billing cycle, with add-ons for service orders, cash receipting, ACH drafting, and BMS Pay online payments. Best when billing needs to integrate with accounting and other municipal modules.
RVS Mosaics
- What it does:
- Long-established Windows utility billing system for small municipalities and water utilities.
- Best for:
- Established rural/Texas utilities needing proven TCEQ reporting.
- Pricing:
- $25 trial; quote-based license (source)
Used by 2,000+ small utilities, RVS is highly configurable with group billing, unlimited batch capacity, handheld/AMR interfaces, and QuickBooks/Sage GL integration. It's on-premise Windows software, reliable and reporting-strong, though reviews note inconsistent support and a dated, desktop-bound experience.