Unbilled hours and forgotten invoices: a 15-minute weekly check

Freelancers rarely lose money in one big mistake. It goes in pieces: a 40-minute call you never logged, a quote the client accepted in an email you didn't act on, an invoice that slid past due while you were busy. None of it shows up unless you look. The check below takes about 15 minutes on a Monday and looks in the same five places every week.

The five places money hides

Two more lines are worth a glance, though they aren't money yet: quotes the client opened but hasn't answered, and documents still waiting for a signature. A short nudge on either often turns into the next invoice.

The 15-minute weekly check

1. Minutes 1 to 4: open your time tracker and filter billable, uninvoiced hours by project. Anything older than your billing cycle goes on an invoice today. Hours logged without a project are the ones most often forgotten, so assign them.
2. Minutes 5 to 7: list quotes accepted in the last 90 days and check each one has an invoice or a paid deposit. An accepted quote with nothing billed is the easiest money on this list.
3. Minutes 8 to 11: sort open invoices by due date. Send reminders for overdue ones, starting with the oldest. For the tone, see what to do when a client won't pay.
4. Minutes 12 to 13: look at invoices due in the next 7 days. If a client usually pays late, a short heads-up now beats a reminder later.
5. Minutes 14 to 15: check this month's expenses for missing receipts and attach what you can find.

To estimate what unbilled time costs you over a year, try the unbilled time calculator with your own hours and rate.

Why billable time goes unbilled

• It was logged without a project, so it never shows up when you build an invoice from a project's hours.
• It was small: a 20-minute fix, a quick call, a revision that "didn't count". Small blocks add up across clients.
• The project was fixed-price, and the extra work went past the scope without a change order. See stopping scope creep.
• You waited to bill until the end of the month, and the month ended during a busy week.

If you're unsure what to count, billable vs non-billable hours draws the line, and the guide to tracking billable hours covers the habits that keep the list short.

Expenses without a receipt

A missing receipt doesn't cost you money this week, but it can cost you a deduction later. The IRS says your supporting documents should identify the payee, the amount paid, proof of payment, the date and a description of what you bought, and that proof of payment alone, like a bank line, doesn't establish that you're entitled to the deduction. Attaching receipts weekly is much easier than rebuilding a year of them in April. Publication 583 covers what records to keep and how.

In SoloWOS: Your week

SoloWOS builds this list for you with fixed rules and exact amounts, without AI. The "Your week" card on Home appears when there's something to act on, and the same content goes out by email on Monday morning between 7:00 and 11:59 in your time zone. It shows:

• Owed to you: overdue invoices with the client, days late and a private payment label (Pays on time, Watch, Pays late or New).
• Due in the next 7 days.
• Unbilled time: billable hours from the last 180 days that aren't on an invoice, by project, rounded the same way as "Add unbilled hours" on a new invoice. Hours without a project, or on an archived one, don't count.
• Accepted, not invoiced: quotes accepted in the last 90 days without an invoice. A paid deposit counts as invoiced.
• Notes on quotes waiting for an answer (viewed with no reply for 3 or more days, or sent and unopened for 5 or more), meetings this week, documents waiting for a signature, this month's expenses without a receipt, and new contacts and form responses.
• Do these first: three actions ranked by money at stake, such as Draft the reminder, Draft the follow-up, Open proposal or Create invoice. Create invoice opens a new invoice with that project's unbilled hours.

Totals are shown per currency and never added across currencies. Draft the reminder and Draft the follow-up open the SoloWOS AI assistant with the request written for you, which uses one assistant request (10 a month on Basic, 500 on Solo); the reminder waits for your Confirm before it's sent. The Monday email can be turned off with the "Weekly summary email" switch in Settings > General, and it counts against the plan's monthly emails like other emails SoloWOS sends for you. It isn't sent in a week with nothing to say.

You can also ask the assistant, or Claude and ChatGPT through the connector, "What's pending this week?" and get the same numbers. To track billable hours and send invoices clients pay by card from the same place, the list stays complete without extra work. For the broader weekly routine beyond money, see the weekly review for freelancers, and more posts are in AI for freelancers.