how do I track receipts and expenses when I work for multiple clients

Freelancer desk with closed laptop, blank sticky notes, and a travel mug in soft natural window light

The most practical approach is to log every expense at the point of purchase and tag it immediately with the relevant client or project category. Waiting until the end of the month means reconstructing decisions you've already forgotten. A dedicated expense tracker like SpendBeaver lets you photograph receipts, categorize them, and filter by client or time period without maintaining a separate spreadsheet. For shared costs — like a software tool you use across three projects — you can split the expense proportionally or assign it to overhead. Consistent tagging from day one saves hours when you need to report costs to a client or hand records to your accountant.