Freelancers systematically undercharge. Not because they price too low (though that's also common), but because they don't count all the time. The 20-minute client email, the 40-minute revision cycle, the hour troubleshooting a problem the client caused — these don't make it into the invoice. Over a month, the gap between hours worked and hours billed can be 20–30%. Here's a system that captures everything.
The Core Rule: Start the Timer Before You Start the Work
The biggest tracking failure is starting work and planning to log the time later. Later never captures the actual time accurately. The discipline of starting Kronos before opening the client file or the email removes the estimation problem entirely — the timer runs while you work, stops when you stop. There is no reconstruction from memory.
Track Everything, Invoice Selectively
Track all time — including time you may choose not to bill. Client calls, revision cycles, administrative tasks, research, and problem-solving all get logged. When you build the invoice, you can decide what to include. But you can only make that decision if the data exists. Freelancers who track selectively always miss billable hours; freelancers who track everything and invoice selectively never miss hours and build goodwill by occasionally absorbing small items.
Organize by Client and Project
Kronos lets you tag each time entry to a specific project and client. At the end of the month, filter the time report by client and export the timesheet. The data is already organized — no spreadsheet consolidation needed. For clients billed at different rates, separate project tags keep the math clean. Freelancers using Lodos typically pair Kronos with Task Management: tasks on the Kanban board become the time entry targets, so every billable action has both a task record and a time record.
Weekly Timesheet Review
Every Friday, spend 15 minutes reviewing the week's time log. Look for gaps — blocks of time with no entries — and fill them in while memory is still fresh. Check that every task has a corresponding time entry. This weekly habit catches the forgotten tracking before it becomes a month-end estimation problem. The review also reveals patterns: which client types take more time than estimated, which tasks consistently overrun, where scope creep is silently consuming margin.
Turn Timesheets Into Invoices
Kronos time reports are exportable by date range and client. Use the export as the basis for your invoice — line items mapped to project phases or deliverables, hours logged per item, and total time clearly documented. Clients who receive invoices backed by actual timesheet data challenge them less than clients who receive invoices with round numbers. Accurate time tracking pays for itself in reduced invoice disputes alone.