Should ad spend include tax?

Follow your local rules and the client's AP guidance. Many studios bill media net and tax only the service fee — confirm; this is not tax advice.

Can I invoice a subcontractor through Kitebill?

Yes as a line. You still need your own agreement with that contractor.

Do I need Pro for retainers?

No. Free plan works until you hit 3 clients / 10 invoices.

Marketer & growth freelancer invoice template

Marketing invoices clear AP when the campaign name, period and what was included (vs ad spend) are impossible to misread.

What to put on a marketer invoice

Campaign / retainer name matching the brief or Notion doc.
Period: "October retainer" or "Launch week 29 Sep–5 Oct".
Fee vs media: your service fee separate from ad spend you prepaid.
Deliverables: posts shipped, landing pages, email sequences, reports.
Payment path: studio account the client already approved.

Line items that match real retainers

Engagement	Example lines	Tip
Monthly retainer	October growth retainer · 4 weekly reports · Slack support	List included hours or deliverable caps in Notes.
Campaign sprint	Product launch creative · 3 ad variants · landing QA	Invoice 40–50% to start if the sprint is large.
Ad spend pass-through	Meta ads top-up (receipt attached) · no markup	Say "at cost" vs "plus 15% media fee" explicitly.
Content pack	8 LinkedIn posts · 2 carousels · stock license	Revisions: how many rounds are included?

Overseas clients

Quote currency in the SOW. Record the payout rate and fees in the app so net income matches reality. See multi-currency.

Reporting and proof of work

AP rarely reads your Notion board. A one-line report link in Notes ("October report: [URL]") plus the deliverable count on the invoice is enough for most clients. If they need screenshots of ads manager, attach those to the email — Kitebill stores the PDF fields, not creative files.

When the retainer changes mid-month

Added platforms → new line on a supplemental invoice, or adjust next month and note the change.
Paused spend → bill management fee per contract; do not invent a "pause discount" unless agreed.
Rush creative → rush line with the % or flat fee from the SOW.

Make one now

Free generator — no account.
Separate fee lines from media pass-through.
Keep retainers in the app and duplicate monthly.

Pro US$29 once unlocks unlimited clients/invoices, expenses and logo. Kitebill is not an ads manager or analytics suite.