OneFirmOS

Product · Run the work

Time & Billing

Capture time on desktop or phone, then turn it into invoices built from the work behind them — WIP, tax and approvals all in one place.

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The OneFirmOS Billing screen with outstanding, overdue and draft totals above a filterable invoice list.
Billing — outstanding, overdue and drafts above every invoice and its status.

What you can do

Capture every hour, bill it without the chase

Time logged against the job becomes WIP, and WIP becomes an invoice — with tax, approvals and payment in the same place, so nothing is re-keyed.

Capture anywhere

Start a timer or log time on desktop or mobile, tagged to client, project and activity.

Weekly timesheets

Submit, approve and lock timesheets, with leave and internal time handled the same way.

WIP you can see

Work-in-progress by engagement and project, so nothing bills late or goes unbilled.

Invoices from the work

Build invoices from the time and WIP behind them, not from a blank page.

Tax done right

Sales tax resolved from each client's own location, not a firm-wide guess.

Payments & credit notes

Card pay-links on every invoice, payments recorded automatically, credit notes when needed.

Why OneFirmOS

What sets us apart.

  • WIP to invoice, no re-entryInvoices are built from the time behind them, so the hour you logged is the line the client pays.
  • Tax from the client, not the firmSales tax is resolved from each client's own location instead of one firm-wide guess.
  • Capture anywhereDesktop or phone, tied to the client, project and activity — with weekly submission and approval.
A handshake across a meeting table as an engagement and its fees are agreed.

How it works

From timer to paid invoice

1 · Capture

Staff run a timer or log time on desktop or mobile, tagged to the client, project and activity.

2 · Build the invoice

WIP by engagement becomes an invoice in a click — tax resolved from the client's own location.

3 · Get paid

A card link on the invoice records the payment against it automatically; reminders chase what's overdue.

FAQ

Frequently asked questions.

Is time & billing an add-on?

No — it's core to the $55 Platform, including timers, timesheets, WIP, invoicing and payments.

Can clients pay online?

Yes. Every invoice carries a card payment link, and the payment is recorded against it automatically.

How is WIP tracked?

By engagement and project, drawn from the time logged — so nothing bills late or slips through unbilled.

One platform

Close the gap between doing the work and getting paid

No re-keying between a timer, a spreadsheet and an invoicing tool — the hour you logged is the line the client pays.

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