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Agency Billing OS

Agency Invoice Generator

Build branded invoices for retainers, project delivery, media spend, and production markups without touching a spreadsheet. Zap Bill keeps every statement client-ready and audit-proof.

  • Reusable service groups for strategy, creative, media, and development pods.
  • Automatic tax and markup handling for blended retainers or pass-through costs.
  • PDF exports with your logo, colors, payment instructions, and contract terms.

Agency Snapshot

38 hrs saved / month

Retainer stability

+23%

Teams that use consistent invoice templates close renewals faster.

Approval time

-41%

Finance sees the exact statement of work, attachments, and payment terms.

Built for retainers, milestones and media spend

Agencies juggle multiple clients, overlapping projects and billing models that rarely fit one template — retainers, project milestones, media pass-throughs and production markups. Zap Bill handles every model in one clean, branded invoice.

  • Retainer, milestone and media-spend billing from one template
  • Scope references, PO numbers and ACH details built in
  • Branded PDFs finance teams approve on the first read
Agency invoice payment flow: create invoice, send to client, get paid fast

Why agencies switch

Designed for retainers, sprints, and media spend

Agencies juggle multiple billing models at once. Zap Bill unifies them with flexible line items, saved service libraries, and fields for campaign notes or usage metrics so clients understand every charge.

Retainer + project clarity

Label each block with delivery dates, sprint summaries, and who touched the work.

Preferred payment terms

Show ACH, wire, or card instructions plus late-fee rules to keep cash flowing.

Typical invoice structure

Agency billing blueprint

  • 1

    Executive summary

    Frame campaign goals, KPIs hit, and the billing window.

  • 2

    Service groups

    Strategy, creative, media, dev, analytics—each with hours, rates, or fixed fees.

  • 3

    Pass-throughs & markups

    Track ad spend, production vendors, and markups so finance never questions a dollar.

  • 4

    Payment logistics

    Invoice due dates, deposit schedules, procurement contacts, and legal references.

Every client invoice in one view

Track paid, sent, overdue and draft invoices across every client and campaign, so nothing slips between billing cycles or retainer renewals.

Zap Bill invoice management list showing paid, sent, draft and overdue invoices with status filters

Brand consistency

Templates creative directors actually approve

Start from polished layouts, tweak accent colors, and drop your logo for every client presentation.

Sample data — your details replace it

Modern Professional

Professional

Clean, contemporary design perfect for tech companies and modern businesses.

Best for

Tech companies Startups Modern businesses
Sample data — your details replace it

Creative Studio

Creative

Bold and colorful design perfect for creative agencies and freelancers.

Best for

Creative agencies Graphic designers Artists
Sample data — your details replace it

Tech Startup

Creative

Modern tech-focused design with gradients and contemporary elements.

Best for

Tech startups Software companies App developers

Agency KPI lift

Keep cash predictable while your team scales

14 min

Average time to duplicate and edit a previous invoice.

97%

Invoices paid on time when terms + ACH instructions are included.

3 clicks

To add creative directors or finance approvers for review.

0 chaos

Every invoice references scopes, PO numbers, and campaign IDs.

Agency FAQ

Answer client questions before they even ask

1. How fast can agencies generate branded invoices with Zap Bill?

Creative agencies ship invoices in under two minutes. Store client profiles, reuse item groups for media buys or retainers, and export polished PDFs that match your visual identity.

2. Can we separate retainer work from pass-through expenses?

Yes. Zap Bill lets you label line items, add internal notes, and apply different tax or markup rules so retainers, production fees, and ad spend stay crystal clear for clients and finance teams.

3. Does Zap Bill work for distributed teams and approvals?

Every account supports shared client records, saved templates, and digital signatures. Upgrade when you need API automation or to mirror your internal approval workflow.

Next step

Send confident invoices after every sprint

Spin up your first invoice now. Invite account managers and finance teammates once you are ready to standardize every client handoff.

Agency Resources

Agency Invoice Generator

Billing workflows for creative & marketing agencies

Creative Templates

Modern designs for creative professionals

Freelancer Invoice Generator

Professional invoicing for freelancers

Invoice Best Practices

Professional tips for better invoicing

How to Send Invoices

Best practices for invoice delivery