For agencies
Keep client billing connected.
Turn retainers, milestones and approved work into invoices without reconstructing the agreement at month-end.
7-day free trial, no card needed.Invoicera helps agencies run outgoing billing across retainers, projects, milestones and approved time. Each client invoice can retain its billable source, applicable terms, reviewer and receivable state as it moves forward. The product supports the billing operation around client work; it does not replace campaign, creative-delivery or project-management systems.
Recognise the work
The client agreement changed. The billing sheet did not.
One account added scope, another moved a milestone and a third still needs time approved. When those decisions sit with different client leads, billing has to rebuild the month before it can send anything.
Start with the wider Solutions map.
- 01
Retainers and projects share one client
Billing needs to apply different sources and timing without losing the account context.
- 02
The account lead holds the exception
A changed scope or delayed milestone remains outside the invoice preparation record.
- 03
Follow-up loses the client conversation
Receivables sees an open balance but not the question already being resolved by the account team.
How it works
Carry the client decision into the outgoing invoice.
The agency billing record should show what was agreed, what became billable and who confirmed the change.
Connect accepted work through project-based billing.
- 01
Assemble
Bring the retainer, accepted milestone and approved time into the correct client billing period.
- 02
Review
Route the outgoing amount to the account or finance owner who can confirm the client terms.
- 03
Follow through
Keep the client response, reminder stage and payment status connected after the invoice is sent.
A practical decision rule
Separate the source before combining the invoice.
A client total may combine several commercial arrangements. Each line should retain the source and decision that made it billable.
Run stable client agreements through recurring billing.
Worked example
One agency invoice with three billable sources
- Monthly retainer
- $12,000
- Accepted milestone
- $4,500
- Approved time
- 12 × $150 = $1,800
- Outgoing total
- $18,300
Industries
Billing by industry.
Explore billing by industry.
View all industries
Professional services
Control retainers, approved time, project work and client review before the invoice leaves finance.
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SaaS
Keep recurring periods, entered or imported quantities and renewal billing decisions visible.
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Construction
Turn accepted milestones, change orders and project billing checkpoints into controlled invoices.
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Logistics
Connect service records, rates, accessorial charges and customer requirements to outgoing billing.
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Legal
Keep the fee arrangement, reviewer and receivable path connected to the outgoing invoice.
View industry →Blog
Relevant reading for this decision.
Explore billing decisions.
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Billing operations · Sep 22, 2026
5 Common Project Billing Problems and How to Fix Them
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Billing operations · Sep 15, 2026
How to Simplify Complex Billing Without Replacing Your Business Systems
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Billing operations · Sep 9, 2026
Zoho Billing vs Invoicera: Which Fits Growing Businesses?
Read article →Customer perspective
What customers say about working with Invoicera.
My contractor business moved away from a manual invoicing process. Invoicera made invoicing simpler, which leaves me more time to help clients.
Late payments made cash flow difficult to manage. Invoicera gives me notifications when clients have not paid, so I can respond and keep the business moving.
Invoicera has streamlined our billing operations and helped us reduce manual effort. We particularly value its automation, ease of use, and professional invoicing experience. It’s a great solution for growing businesses, and we’re happy to recommend it.
Questions buyers ask
Know where this fits.
Each answer stands on its own, including the boundary of what Invoicera does and does not do.
What billing models can an agency run in Invoicera?
Agencies can create outgoing invoices for retainers, recurring agreements, fixed project work, accepted milestones and approved time. A client invoice may combine relevant components while keeping each source understandable. The agency remains responsible for defining the commercial terms and confirming the work that is ready to bill before outgoing review begins.
Can account leads review an invoice before the client sees it?
Invoicera supports multi-step outgoing approval with role-based routing and value thresholds. An agency can place the appropriate account or finance reviewer before client delivery, helping the team check scope, period, rate, amount and delivery against client terms. This is approval of customer invoices, not approval of supplier bills or other incoming documents.
Does Invoicera manage agency projects or campaigns?
No. Invoicera supports the billing step around approved project, milestone and time inputs. It does not plan creative work, assign delivery tasks, manage campaigns or replace the agency’s project system. The useful boundary is clear: delivery confirms what became billable, and Invoicera applies the billing terms and outgoing controls to that work.
How should agencies handle client billing exceptions?
Keep the exception beside the affected invoice or billable component, with its reason, owner and next action. A delayed milestone, disputed line or changed scope should not disappear into an email thread. Routine reminders can continue for ordinary overdue balances, while active client questions remain visible for deliberate human review.
Can agency billing continue alongside QuickBooks or Xero?
Yes. Invoicera works alongside supported accounting companions and sends supported billing outputs outbound after the agency’s preparation and outgoing review. QuickBooks or Xero remains responsible for the ledger. The separation lets the agency keep client terms, billable sources and approvals in the billing operation without claiming to move the accounting record itself.
Start with the real billing case
Bring the schedule, exception or approval that is hardest to control.
See how Invoicera would run it without moving the ledger out of the system your finance team already uses.
Book a Demo