Tracking billable hours as a freelancer without losing your mind

Time tracking that survives contact with a busy week has three properties: the entry is made while the work is happening rather than reconstructed later, it carries enough detail to bill from without translation, and it takes seconds. Four fields do it - client, what you were doing, how long, and a one-line note. Everything more elaborate than that tends to be abandoned by the second month.

The reason to bother is not tidiness. It is that hours you did not write down are hours you will either not bill or bill without being able to explain, and the second is worse than the first.

General information, not tax advice. The ATO is the authority - see ato.gov.au or ask a registered tax or BAS agent.

What untracked time costs

The cost is easiest to see with numbers attached, so here are some, clearly labelled.

An illustration, not data. Assume a freelancer bills $100 an hour, moves between three client jobs in a day, and writes nothing down. Assume they reconstruct the week on Friday afternoon from memory and calendar entries. Reconstruction is systematically generous to the client: the half hour on the phone before lunch, the twenty minutes fixing something after a review, the context switch back into a job you left on Tuesday. Assume half an hour a day disappears that way. That is two and a half hours a week, or $250 at the assumed rate, from work that was actually done. Change the rate or the slippage and the figure changes, but the direction does not: reconstruction rounds towards zero, never towards you.

There is a second cost that shows up later and hurts more. Without a record of what jobs actually took, every future quote is a guess. You cannot tell a profitable client from an expensive one, and you cannot price a fixed-fee job with any confidence, because the only evidence of how long that kind of work takes is the evidence you did not keep.

What to record on every entry

Four fields, and the fourth is the one people skip.

Which client and which job. Not just the client. A client with three jobs running produces a timesheet you cannot split when one of them is queried.

When, or how long. Start and stop times if you work in blocks, a duration if you work in bursts. Either is fine. What does not work is a number typed in at the end of the week.

A one-line note of what you did. “Site visit and measure-up.” “Second round of revisions on the homepage copy.” “Debugging the checkout error reported 14 October.” This line is the entire difference between an invoice that gets paid and an invoice that gets a phone call. It costs about four seconds and it is the field that survives into the invoice, the file note, and the conversation in eight months when nobody remembers the job.

Write the note in language the client would recognise, not shorthand for yourself. You are writing evidence, and the person reading it may be an accounts manager who never met you.

Billable and non-billable, and why both get tracked

The instinct is to track only what you can charge for. Tracking the rest is where the useful information is.

Quoting, invoicing, chasing payment, travel, admin, and rework caused by your own error are generally not billable. Recorded, they answer questions guesswork cannot. How many hours went into winning that job? What is your actual hourly return across a week once the unbillable hours are counted? Which client generates three times the admin of everyone else for the same fee?

A freelancer who tracks only billable time knows their rate. One who tracks both knows their effective rate, which is the number that determines whether the year works.

Rework is worth its own category rather than being quietly folded into the job. Rework you caused is a cost of doing business; rework caused by a change of mind on the client’s side is usually a variation, and it can only be raised as one if there is a record of it.

Rounding, and saying so in advance

Most people round. Six-minute or fifteen-minute increments are both common, and either is defensible so long as the client knew before the first invoice.

The rule that matters is not which increment you pick. It is that the increment appears in the quote or your written terms, not for the first time on an invoice. A rounding convention agreed up front is a billing method; the same convention discovered on an invoice reads as padding, and it is the sort of thing that turns a routine payment into a dispute. What your terms can and cannot provide for generally depends on what was agreed with the client, so if you are writing terms you intend to rely on, a lawyer or your industry association is the right place to check them for your own situation.

The same goes for minimum call-out charges and travel time. Both are ordinary and both are only ordinary if they were mentioned before the work started.

The weekly review that keeps it honest

Ten minutes, same time every week. Three checks.

Look for gaps: days with three hours logged that you know were full. Look for entries with no client or no job attached, which are the ones that quietly become unbillable. Look for notes you cannot understand a week later, and fix them while you still can.

Do this before invoicing, not during. Reviewing and billing at the same time creates pressure to resolve every ambiguity in whichever direction gets the invoice out faster, and that direction is usually against you.

Putting the hours on the invoice

One line reading “Consulting, 40 hours” invites scrutiny of the whole invoice. A line per task, or per day, with the note attached, invites none, because there is nothing to wonder about.

Group at the level the client thinks in. For a project, that is usually by task or milestone. For ongoing work, by day or by week. Show the hours, the rate and the amount for each group, and keep the notes visible rather than in an attachment nobody opens.

This is also the point where good notes pay for themselves. An invoice that says what was done on which day, in the client’s own vocabulary, is approved by someone who never has to ask you a question. The rest of what makes an invoice easy to pay, from due dates to the follow-up sequence when it is late, is in how to get invoices paid on time, and the fields the document itself needs are in how to invoice as a sole trader.

How Apsis helps

Apsis keeps time entries against the client and job they belong to, with an overview and reports you can run for a period before you invoice, so the weekly review is a screen rather than a reconstruction. Tasks sit on a kanban board and the calendar shows what is scheduled, which is where most of the entries come from in the first place. There is no automatic import from a timesheet into an invoice: you read the totals off the report and enter the lines you want to bill, which in practice is the step where you decide what is billable rather than having software decide for you. Timesheets, tasks, clients and invoices are all on the free plan, which covers 5 clients and 20 invoices a month, and a default line-item rate from your settings or the client pre-fills new invoices so the rate is not retyped for every line.