Most agency time trackers treat the START button as a form. Pick a client, pick a project, pick a task, maybe write a description, and only then does the clock run. It looks like good data hygiene. In practice it is
one of the most reliable ways to lose billable hours.
This article explains why, how to tell whether it is happening in your team, and what to change, whichever tool you use.
The moment that decides whether time gets tracked
Time tracking succeeds or fails in the first few seconds of a task. Someone joins a call, opens a ticket or picks up a client message. If starting the clock takes one click, it gets started. If it takes four decisions, it gets postponed, and postponed tracking becomes reconstructed tracking at the end of the day or the end of the week.
Reconstruction is where accuracy goes. People round to the nearest hour, forget the short calls, merge two tasks into one, and log the work they remember rather than the work they did. None of this is dishonest. It is what memory does.
Every question you ask before the clock starts is a reason to start it later. Ask the same questions when the clock stops and you get the same data without losing the minutes.
Three ways START-time rules leak billable hours
1. Late starts
The person knows the work has begun but does not yet know which task code it belongs to. They start the timer once they have worked it out, ten or fifteen minutes in. That gap is real client time that never reaches an invoice.
2. Placeholder entries
To get past the form quickly, people pick whatever project is first in the list, or a catch-all like Internal or Admin. The hours are tracked, but against the wrong bucket, so billable work shows up as overhead and nobody corrects it later.
3. Skipped tracking
For short tasks, the form takes long enough that it does not feel worth it. A five-minute client call or a quick fix is simply not tracked. Across a team and a month, these small gaps add up to a meaningful share of the work you could have billed.
How to tell if this is happening in your team
You do not need new tooling to check. Look at last month's entries and ask:
- Do entries cluster on round numbers like 1h, 2h and 4h? Real work rarely ends on the hour, so heavy rounding points to reconstruction.
- How much time sits in catch-all projects such as Internal, Admin or General compared with what you expected?
- Are there days with time in calendars and tickets but no matching entries?
- Do people edit most entries after the fact, or add them in bulk on Fridays?
If two or more of these are true, your START step is probably costing you hours.
How to prevent incomplete timesheets: start free, enforce at STOP
Keep every rule you have. Move when it is checked. The clock should start with nothing filled in, and the entry should not be saved until the required details are there. The person fills in the project and task while the timer runs, when they know what the work actually is.
Before After
------------------------------ ------------------------------
1. Choose client 1. Press START (nothing required)
2. Choose project 2. Work; fill details as they firm up
3. Choose task 3. Press STOP
4. Write description 4. Missing fields? STOP names them
5. Press START 5. Entry saved complete
6. Work
7. Press STOPThis keeps reports complete, because nothing incomplete is ever saved, and it removes the reason to start late. It also makes the rule visible at the right time: when someone presses STOP without a project, they are told exactly what is missing while the work is still fresh.
If your tool cannot do this
- Allow a single Unsorted project for quick starts, and review it daily rather than at month end.
- Ask people to start the timer first and categorise during the first natural pause.
- Make the weekly review about catch-all projects, not about total hours.
How Tickr handles it
Tickr was built around this idea. START never asks for anything. Each workspace decides which of description, project, task and tag an entry must carry, and STOP refuses until they are there, naming what is missing. The running timer stays visible in every browser tab, so it is hard to forget. You can read the details in the Tickr docs or in why we enforce required fields on STOP, not START.