Xero is clean bookkeeping for project-based businesses. For an agency, that is necessary and not sufficient. Compliance is not the same as knowing whether the studio is healthy.
What it is good at
Invoices, bills, bank reconciliation, and a set of accounts your accountant can work with. That is the floor. If the books still live only in spreadsheets, this is the usual next step.
It becomes a decision tool when you pair it with a weekly cash view and a monthly look at operating profit. How to build a simple agency finance system is the rhythm; agency profit margin benchmarks is the diagnostic range.
What to add around it
Add Harvest if project costings are guesswork. Add Profit First only if tax, owner pay, and operating cash still share one account.
Do not buy extra Xero modules to postpone a monthly meeting. The meeting is the system. More on this topic: Money.