How Invoicing and Payments Work in ActiveCollab

ActiveCollab handles billing as a connected flow rather than a separate accounting tool: you build an estimate, turn the won estimate into a project, track the work and hours inside that project, then issue invoices and collect payment through a gateway that is already set up via Stripe and PayPal. This suits service businesses — agencies and consultancies especially — that want the path from "task to an invoice" to stay inside one workspace. It is not positioned as a full accounting or bookkeeping system, so treat it as the billing layer attached to your project work.

The billing flow, step by step

The product describes the chain as "From a task to an invoice. Just like that." In practice that means the following sequence.

1. Create an estimate

Estimates are the entry point for new client work. You build an estimate for the client, and the page frames this as a way to "build your client base with us."

2. Convert a successful estimate into a project

When an estimate is accepted, you turn it into a project "in a click." This is the key link between sales and delivery: the same record that won the work becomes the container where tasks, time, and eventually invoices live.

3. Track the work that gets billed

Because the project now exists in ActiveCollab, the work done against it — tasks, tracked hours, progress — is the same data that later supports invoicing. The site's customer quotes reinforce this: one founder notes they can "record all of our working hours for different projects throughout the day," which is the input that makes billing tied to actual effort rather than guesswork.

4. Issue invoices

Invoicing is described as "made easy," with the payment gateway already configured. You generate the invoice from within the workspace rather than exporting to a separate billing product.

5. Collect payment

Payments run through Stripe and PayPal, which are set up as the payment gateways. The stated goal is direct: "Get paid for your work!"

What's confirmed vs. what to verify

Where this fits — and where it doesn't

ActiveCollab's billing features are built for growing service businesses that bill clients for project work. The estimate-to-project-to-invoice loop is most valuable when:

• You sell project or retainer work and need to convert proposals into delivery without re-entering data.
• You bill based on tracked time or project scope, so having hours and tasks in the same system as invoices removes a reconciliation step.
• You want client-facing transparency — the site lists "Client and vendor collaboration" as a core capability, which pairs naturally with showing clients estimates and invoices.

It is less suited if you need full double-entry accounting, tax filing, or payroll — those aren't part of what's described here. ActiveCollab is the workspace where the billable work and the invoice meet, not your accountant's ledger.

Practical notes before you commit

• Payment setup is the gate. Since Stripe and PayPal are the configured gateways, confirm your business can accept payments through those providers before relying on in-app collection.
• The estimate is the anchor. Because estimates convert directly into projects, getting your estimate structure right early saves rework later.
• Reporting closes the loop. Use the dashboards and exportable custom reports to check that invoiced amounts line up with tracked work — that's the payoff of keeping billing inside the project tool.
• Check current plan terms yourself. The material points to a Pricing page but states no prices, limits, or trial conditions, so verify those directly rather than assuming.

The short version: if your bottleneck is the gap between finishing client work and getting paid for it, ActiveCollab's estimate → project → invoice → Stripe/PayPal flow is designed to close that gap inside one workspace.