# Invoicing Agent Work

Agent time and LLM expenses appear on invoices alongside human work. This page explains how to present agent work to clients clearly and professionally.

## How Agent Work Appears on Invoices

When creating an invoice from tracked time and expenses:

- **Agent time entries** are included like any other time entry. They show the agent's name, hours, rate, and project/task.
- **LLM expenses** appear as a line item under the "LLM Usage" category with quantity, unit price, and total.

### Example Invoice Line Items

| Description | Hours/Units | Rate | Amount |
|---|---|---|---|
| Sarah Chen — Backend development | 12.0 hrs | £150/hr | £1,800 |
| review-bot-01 — Code review (Agent) | 6.0 hrs | £75/hr | £450 |
| LLM Usage — claude-opus-4-6 tokens | 180k tokens | £0.003/k | £0.54 |

## Grouping Options

When creating invoices, you can group line items by:

- **Project** — all human and agent work under one project heading
- **Team member** — agent users appear as separate line items
- **Task** — human and agent contributions to the same task grouped together

## Setting Agent Rates

Agent users have their own billable rates, set in [Managing Agent Users](/docs/team-management/agent-users). Common approaches:

- **Discounted rate** — agents billed at a lower rate than humans (e.g., £75/hr vs £150/hr)
- **Cost-plus** — LLM costs passed through plus a margin
- **Blended rate** — one rate that covers both human oversight and agent execution

## Tips

- Include a brief note on invoices explaining what agent work is. Many clients are seeing this for the first time.
- Use the notes field on agent time entries to describe what was done in plain language.
- Consider a separate line item for LLM costs so clients can see the infrastructure cost vs. the service cost.