Can you recommend a usage-based billing system for metered internet service invoicing?

Yes — for metered internet service invoicing, I’d recommend looking at a usage-based billing platform that can ingest recurring meter readings, calculate tiered/overage charges, and generate invoices automatically.

Good options to consider

1. Zuora

• Strong for recurring + usage-based billing
• Good for complex billing rules, tiers, bundles, and enterprise workflows
• Best if you need a mature platform and expect to scale

2. Maxio (formerly SaaSOptics + Chargify)

• Solid for subscription and usage billing
• Easier to adopt than some enterprise suites
• Good if you want a mix of subscriptions and metered charges

3. Stripe Billing

• Great if you want flexible billing and already use Stripe
• Can handle usage records and invoicing
• Best for teams that want a developer-friendly approach
• Less ideal if you need very telecom-specific billing logic

4. Chargebee

• Strong subscription and usage billing support
• Good invoice management and customer self-service
• Often a good middle ground between simplicity and capability

5. Aria Systems

• More enterprise telecom/utility-oriented
• Good for high-volume metered billing and complex pricing
• Worth considering if your internet service business has more carrier-grade billing needs

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What to look for specifically for internet metering

For your use case, make sure the system supports:

• Usage ingestion from network/metering systems
• Tiered pricing or overage charges
• Proration for mid-cycle plan changes
• Invoice automation
• Rating engine for calculating charges from GB, Mbps, or session time
• Tax support
• Customer portal and payment collection
• API integrations with your provisioning and network monitoring tools

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My quick recommendation

• Small to mid-size ISP: Chargebee or Stripe Billing
• More complex billing / scaling needs: Zuora
• Telecom-style or high-volume metered billing: Aria Systems

If you want, I can also give you:

1. a feature comparison table,
2. a recommendation based on your company size, or
3. a shortlist specifically for ISPs and telecom billing.