Turn Tracked Time Into Paid Invoices Automatically
Here is an uncomfortable number: most freelancers under-bill by 15-30%. Not because they overcharge or scare clients away β but because the hours they actually worked never make it onto an invoice.
The 20 minutes on a call. The "quick" revision on Friday night. The research rabbit hole that was genuinely billable. If it lives in your head or a notes app instead of a timer tied to a task, it evaporates. On a $60,000 book of work, a 20% leak is $12,000 a year you earned and never charged.
The leak is structural, not lazy. It comes from a gap between where work happens and where invoices are made:
| Stage | Where it usually lives | The leak |
|---|
| Work | Your head / a to-do app | Tasks never logged as billable |
| Time | A stopwatch app or guesswork | Hours rounded down or forgotten |
| Rate | A spreadsheet | Wrong or outdated rate applied |
| Invoice | A separate invoicing tool | Manual re-entry β errors and omissions |
Every hand-off between these tools is a place where minutes fall through the cracks.
KAZI closes the gap by wiring four modules into a single flow β Projects Hub, Tasks, Time Tracking, and Invoicing β so a tracked minute cannot get lost on its way to an invoice.
Create a project per client or engagement. Set the billing model β hourly, fixed, or milestone-based β and the hourly rate once. Everything logged against that project inherits the right rate automatically. No more "what did I charge them again?"
Break the project into tasks on a Kanban board: To Do β In Progress β Review β Done. Each task can be flagged billable or non-billable, so internal admin does not contaminate client invoices, and real work never gets miscategorised as "free."
Start a timer directly from any task with one click. No separate app, no switching context. The timer knows which project and task it belongs to, which client it bills to, and what rate applies. Forgot to start it? Add a manual entry after the fact. Every entry is attributed the moment it is created.
This is where the leak closes. When it is time to bill, KAZI pulls every unbilled time entry for the project and drafts an invoice β hours, descriptions, rates, and totals already filled in. You review, adjust if needed, and send. The client pays by card via Paystack, right from the invoice.
No re-typing. No cross-referencing a stopwatch app against a spreadsheet. No wondering whether Tuesday's call made it in.
Say you tracked this week against the "Acme Rebrand" project:
| Task | Time entry | Rate | Billable? |
|---|
| Logo concepts | 4h 30m | $85/hr | Yes |
| Client call | 45m | $85/hr | Yes |
| Internal file cleanup | 30m | $85/hr | No |
| Revision round 1 | 2h 15m | $85/hr | Yes |
When you generate the invoice, KAZI includes the three billable entries (7h 30m = $637.50) and automatically excludes the internal cleanup. Under the old spreadsheet method, that 45-minute call and the Friday revision are exactly the entries that would have vanished β roughly $255 recovered on one week of one project.
Not every client is hourly:
- Milestone billing ties invoices to project milestones. Deliver the milestone, trigger the invoice β and pair it with escrow so the client funds it up front.
- Recurring invoices auto-generate and send on a schedule for retainer clients, so predictable revenue arrives without you lifting a finger.
Connecting time to invoicing does three measurable things:
- Recovers the 15-30% leak β billable minutes are captured at the source and flow straight to an invoice.
- Cuts invoicing time to minutes β no manual re-entry means an invoice is a review-and-send, not a data-entry chore.
- Speeds up cash flow β accurate invoices go out sooner and, paired with card payments, get paid faster.
You already did the work. This is simply about getting paid for all of it.
- Start a free KAZI account.
- Create a project, set the rate, and add a few tasks.
- Track time straight from the tasks as you work.
- Generate your first invoice from tracked time and send it in a click.
Stop leaving money on the table. Try KAZI free β no credit card required.