What is a time category?
A time category is a bucket in a time tracking system. Every hour logged goes into one, so the business can see not just how many hours were worked but what kind of hours they were. The most basic split is billable and non-billable. Most agencies go further: client work by phase (strategy, pre-production, production, post, revisions, project management) and non-billable work by type (new business, internal projects, training, admin, holidays and sick days).
Categories are the structure behind every useful time report. Without them, a timesheet is a total. With them, it is a picture of where the business really spends its time.
Why it matters
Why time categories matter
The categories decide what you can learn. If revisions are not a separate category, nobody can see that a client's third and fourth rounds are eating the margin. If new business is lumped in with admin, nobody knows what winning work actually costs. Agencies make some of their biggest decisions (pricing, hiring, which clients to keep) from time data, and the categories decide whether that data can answer the question.
They also make billing defensible. Categorized time lets a producer show a client exactly where the hours went, phase by phase.
And they protect the team. When non-billable time is categorized rather than hidden, you can see that someone spent a third of the month on pitches and internal projects, and plan their client load around it instead of reading them as under-used.
In practice
How time categories work in practice
- 01
Design them around the decisions you need to make, not around every possible activity. A practical setup for a creative studio has two levels: the project (or an internal code for non-client work) and the category (the phase or type of work). Keep the category list short, ideally under fifteen, and define each one in a sentence so two people would file the same hour the same way. Map the client-work categories to the phases in your estimates, so actual time can be compared directly with planned time.
- 02
Review the setup every six months. If a category is never used, remove it; if people keep asking where something goes, the definitions need work. Monthly reports then show the split: billable against non-billable overall, time by phase for each project and the hours spent winning new work.
Watch out
What people get wrong about time categories
Having too many of them. A list of forty categories means people pick the first one that looks close, and the data becomes noise. Fewer, well-defined categories produce better information. The second mistake is categories that do not match the estimates. If the estimate is built by phase and time is tracked by activity, the two can never be compared. A third is changing the categories every quarter, which makes this year impossible to compare with last.
And hiding the uncomfortable ones. If internal meetings and rework have no category, they still happen; they just disappear into client work.
