Best B2B billing software in 2026

Modern B2B billing software increasingly supports usage-based and hybrid pricing for AI, cloud, and developer businesses that charge by tokens, API calls, compute, or other granular consumption measures, requiring high-volume event metering, flexible contracts, and integration with finance systems. The guide compares Orb, Metronome, Lago, Chargebee, Maxio, Stripe Billing, and Recurly, describing Orb as focused on raw usage-event retention, SQL-defined metrics, pricing simulations, dimensional pricing, credits, commitments, and invoicing; Metronome as an enterprise usage-billing product acquired by Stripe in January 2026; Lago as an open-source, self-hosted option; Chargebee and Recurly as subscription-oriented platforms that support usage billing; Maxio as a finance-centered SaaS billing and revenue-recognition platform; and Stripe Billing as an option closely tied to Stripe’s payments ecosystem. It notes that vendors differ in pricing models, integration depth, revenue-recognition capabilities, and operational ownership, while building billing internally can provide early flexibility but may become a long-term engineering and compliance burden. Key evaluation considerations include raw-event handling, rerating and backfills, pricing simulations, ERP and CRM integrations, audit controls, data sovereignty, and support for accounting standards such as ASC 606 and IFRS 15.

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