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Invoice Generator for Marketing Agencies
Agency invoices need a retainer line and a pass-through section — mixing media spend with fees is the fastest way to lose a client's trust.
How marketing agencies should structure their invoices
- Media spend is a pass-through: bill at cost with the platform invoice referenced, or charge a stated percentage on top.
- Show deliverables consumed this period (hours or assets) so the retainer does not look like a flat fee for nothing.
- Performance bonuses should be a separate line with the formula shown.
The invoice above already contains the line items most marketing agencies bill for. Adjust the rates to your own, delete what does not apply, and add anything specific to your engagement.
What a marketing agency invoice must include
- A unique, sequential invoice number — never reuse or skip numbers.
- Your business name and address, plus your tax or registration number if you have one.
- The client's name and address, and a purchase order reference if they use one.
- Each service on its own line with quantity and rate, so the total is auditable.
- Tax shown separately with the rate, and the total clearly stated.
- Payment terms and the due date — not only in your contract.
Marketing Agencies invoicing questions
Retainer or project?
Retainer for ongoing channels, project for launches and rebrands. Never let a retainer absorb unlimited project work.
How do I bill ad spend?
Two models: pass-through at cost plus a management fee, or a percentage of spend. Pick one and state it in the contract.
What if the client is late paying?
Pause delivery, not the invoice. State the pause policy in the contract and reference it politely on the reminder.