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Once a meter is counting events, the next decision is what each unit costs and how it lands on an invoice. This page covers how Macropay turns aggregated usage into money: the metered pricing models, when charges are billed, and what customers see. Because Macropay is your Merchant of Record, the math on top of the usage — global sales tax and VAT — is handled for you. You publish a price per unit; we calculate, collect, and remit the tax on every invoice, in every jurisdiction, so metered revenue doesn’t expand your compliance surface.

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Metered pricing models

A metered price binds a meter to a per-unit rate. As events are ingested and aggregated, the meter’s total is multiplied by that rate to produce the charge.

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Unit pricing

Unit pricing charges the same amount for each unit, no matter how many are consumed. It’s the right default for token billing, API calls, and most AI-agent metering, where you want a predictable rate card. Say you’re billing an LLM feature and meter prompt and completion tokens separately: A customer who consumes 1,000 prompt-tokens and 400 completion-tokens in a period is charged (1,000 × $0.10) + (400 × $0.18) = $172.00 for usage — before tax, which Macropay adds and remits on your behalf.
Pricing per meter is independent. Mix metered prices with a fixed base fee on the same subscription to build hybrid plans — a flat platform fee plus pay-as-you-go usage on top.

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Volume pricing (coming soon)

Volume pricing lets the unit rate step down (or up) as a customer’s total volume crosses thresholds — for example, a lower per-token rate after the first million tokens. This model is on the roadmap and not yet available.

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Adding a metered price

Metered prices attach to subscription products. To start charging for usage, add one to your product, selecting the meter to bill against and the amount per unit. You can also set an optional cap. Once a customer’s usage charge in a period reaches the cap, the charge is held at that amount no matter how much more they consume — a simple way to give customers a predictable ceiling.
Pairing metered prices with prepaid credits is a common pattern: grant credits up front, draw them down against usage, then bill the overage.

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When usage is invoiced

Usage-based charges ride along with the subscription’s billing cycle. Usage accumulates over the period and is settled on the same invoice as the rest of the subscription.
Usage is aggregated across the month and invoiced at the end of the billing period, together with any recurring subscription fees.

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Cancellations and the grace period

Cancelling a subscription doesn’t drop accrued usage charges. The subscription stays active through the end of the current billing period — the grace period — and usage continues to be tracked the whole time. At the end of that period, a final invoice settles the consumed usage, even though the subscription won’t renew. Nothing billable is lost on the way out.
When a discount is applied to the subscription, it reduces the entire invoice, metered usage included — not just the recurring base fee.

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What customers see

Customers track their running usage and estimated charges per meter from the customer portal, so there are no surprises at invoice time. Every invoice Macropay issues lists Macropay as the seller of record and itemizes the tax we collect and remit for you, keeping your usage-based revenue compliant in each customer’s jurisdiction without any tax engine on your side.