For consultants and agencies

Time tracking for
the work you bill.

Keep project tasks, logged hours, and retainer balances together. See what’s ready to invoice and what it cost you to deliver.

No credit card required · Client seats are free

billable8.com Interactive demo

Northwind Studio

Website & ongoing support

Time & budget

Retainer3 periods
62.00hlogged all-time
57%

This period

22d left
24.00h/ 42.00h
1 Sep 2026 – 30 Sep 202618.00h still available+2.00h rollover
52%

Whole engagement

62.00h/ 120.00h
Full project term58.00h remains contracted

Tasks

4 tasks
Sample project tasks
TaskStatusAssigneeDue
6h 30m
JJamieSep 04
8h 15m
AAlexSep 11
7h 45m
MMorganSep 18
1h 30m
JJamieSep 25
Try the timer
00:00:00
Website design

Click a task to explore it. Change its status or start tracking time.

Interactive sample · Fictional data · Changes aren’t saved

Built and used by Ops Automators to manage real client work.

How Billable8 started

How it works

From a task to
an approved hour.

Log the work against a project. Its client, rate, and billing period are already there when it’s time to review.

01

Log time where you work.

Start a timer from a task, enter the hours by hand, or fill in your weekly timesheet. Each entry stays attached to the work it belongs to.

02

Check the hours remaining.

See the current retainer period and the whole project budget together. Spot an overrun before you commit to another request.

03

Review, then invoice.

Approve time and settle any overage. Create the invoice in your invoicing system, then mark the amount invoiced in Billable8.

Delivery margin

See the cost behind
every client project.

A project can be within its hours and still cost too much to deliver. Add your team’s cost rates to see the difference between approved value and delivery cost.

  • Compare delivery margin by client and project
  • Rates are saved with each time entry, so later changes don’t rewrite past work
How margin is calculated
Example calculationSample figures
Delivery margin$3,600

60% of the approved value

Approved value$6,000
Delivery cost− $2,400
Delivery margin= $3,600

Delivery margin is before overhead, tax, and other business expenses.

Retainers & client access

Keep clients
up to date.

Keep the agreement and the work together, with control over what each client can see.

Retainer management

Agree the rules once.

Set included hours, rollover limits, and overage rates for each agreement. Close a period to freeze its totals and lock the entries behind them.

Explore retainer management
Unused hours
Roll forward within your agreed cap.
Overage
Bill it, or carry it into a later period.
Closed periods
Keep the figures you reviewed.
Client portal

Give clients a place to check.

Share selected tasks, approved hours, and retainer progress through the client portal. Client seats are free.

Try the client portal
Shared with clients
The tasks and project details you make visible.
Internal to your team
Cost rates and delivery margins.

Why we built Billable8

We needed those hours
to send an invoice.

A time tracker held 53 hours of our work behind a paywall the week an invoice was due. So we built Billable8. It still runs the client work at Ops Automators.

Your data stays yours, with CSV exports and clear export terms.

Read our story

14 days to try it

Bring your
next project.

Add a client, set your rates, and log a few hours.
You’ll have your own numbers to judge it by.

No card required. Solo from $15/month. Clear export terms.