ClockoutEdit a sent invoice in 30 seconds, not 30 minutes
When a client asks to add a PO number, split a line item, or adjust a tax rate on an invoice you've already sent, Clockout lets you revise the original instead of creating a v2.pdf. Same invoice number, same audit trail, no version pollution.
The problem with most invoicing tools
Most tools treat invoices as immutable PDFs. Real billing isn’t like that.
When a client asks to add a PO number to an invoice you’ve already sent, the legacy workflow is: void the original, issue a new invoice with a new number, manually copy over the line items, regenerate the PDF, and email the client a confused note about which version to pay. Now you have two invoices in the system, two records in your books, and a 30% chance the client’s accounts payable team pays the wrong one.
The right model is to treat the revision as a state change, not a new document. The original invoice retains its identity — same invoice number, same audit trail, same line item history — but it goes back into edit mode for as long as you need to make the change. When you resend, the client gets the updated version with a clear note that it’s been revised.
That’s how Clockout invoices work. There’s a built-inrevisedstate that re-opens any sent (or viewed, or partially-paid) invoice for editing. The session-backed line items re-sync against your tracked time automatically. The invoice number stays the same. Bookkeeping stays clean.
How it works
The full revision flow, in four steps
Step 1
Open the invoice and transition to revised
From any post-send state — sent, viewed, partially-paid — one click moves the invoice into therevisedstate. The invoice number, original send date, and audit trail stay intact. Editing is unlocked again.
Step 2
Make the change — line items resync automatically
Edit the line item, add a missing PO number, fix a typo in the client name, attach a corrected expense receipt. If the change touches tracked time entries, session-backed line items resync against the latest data — you don’t have to remember which entries fed which lines.
Step 3
Verify the new total and resend
Confirm the updated total, then transition back to sent. The client receives an email notifying them the invoice has been revised, with a link to the current version. Same invoice number; no PDF version pollution.
Step 4
Audit trail stays attached
The revision history — what changed, when, by whom — stays linked to the invoice. If your accountant or your client asks “why does this version differ from what was originally sent,” the answer is one click away, not a guess based on filename conventions.
What makes this different
One invoice, one number — through every revision
No invoice number changes
Most tools force a new invoice number on revision. Clockout doesn't. Your client's AP system sees one document, not two — which is what their bookkeeping expects.
No v2.pdf clutter
There's no Invoice-2347-v2.pdf, no Invoice-2347-final.pdf, no Invoice-2347-final-FINAL.pdf. The current version is the current version.
Tracked time resyncs automatically
When the invoice goes into revised state, session-backed lines pull the latest tracked-time data. Correct an hour in the tracker; the invoice line updates to match.
Notification email is automatic
The client doesn't have to guess that the invoice changed. They get a clear notification with a link to the current version. Silent revisions are how clients pay the wrong amount.
Paid invoices are locked
Once an invoice is paid, the revise action is unavailable. To adjust paid invoices, the right tool is a credit note — and Clockout enforces this so you can't accidentally break audit-friendly records.
The 30-second example
What a typical revision looks like in Clockout
Tuesday morning. A client emails: “Hey, accounts payable just flagged invoice 2347 — they need a PO number on it before payment can clear. Can you add 4471-A?”
You open Clockout, find invoice 2347, click Revise. The invoice transitions from sent to revised. You add the PO number to the reference field, click Send. The invoice goes back to sent state, the client gets an email that the invoice has been revised with the PO number added, and total stays at $4,250 unchanged. Same invoice number. Same audit trail. The whole loop took 30 seconds.
Three days later the client pays. Your books show one invoice, paid. Your bookkeeper has no reconciliation work. Your accountant has no audit question. The revision happened, was documented, and disappeared into the normal flow of business.
Questions about editable invoices
What people ask before switching
Can I edit an invoice that's already been sent?
Yes. In Clockout, sent and viewed invoices can be transitioned into a revised state, which re-opens them for editing. The invoice number doesn't change, the audit trail stays attached, and the client receives the updated version with a clear indication that it's been revised.
Does the invoice number change when I revise?
No. The whole point of in-place revision is that the invoice keeps its identity. Same invoice number, same date, same audit trail. Clockout stores the revision history internally, so you can always see what changed, but externally the invoice is one document with an edit cycle in its lifecycle.
Will my client see two versions of the invoice?
They'll receive a notification that the invoice has been revised, with a link to the current version. The original version is no longer the active document. Clockout doesn't email two PDFs and let the client guess which one to pay — there's a single source of truth, and revisions update it.
What happens to tracked sessions when I revise?
When the invoice transitions into revised state, session-backed line items re-sync against the underlying tracked time. If you corrected an hour entry in the tracker, the invoice line updates to match. You don't have to remember which entries fed which line — the system handles it.
Can I revise an already-paid invoice?
No, and you shouldn't want to. Paid invoices are permanent financial records. To adjust them, you issue a credit note instead — which is a separate financial document that lives alongside the original. Clockout enforces this: the revise action is unavailable on paid invoices.
Can I add new tracked time to a revised invoice?
Existing line items can be edited freely while the invoice is in revised state. Adding entirely new manual sessions to an invoice that's already been sent is restricted, because that crosses the line from "correcting an existing bill" into "adding a new bill," which usually deserves its own invoice. If you genuinely need to bill additional work, the cleaner path is a separate invoice for the new scope.
How does this compare to other invoicing tools?
Most legacy invoicing tools (Harvest, FreshBooks, basic invoice generators) don't have a true revision state — to correct a sent invoice, you typically void it and issue a new one with a new number, or generate a credit note. Clockout's revised status was built specifically because the legacy approach creates avoidable bookkeeping pollution (duplicate invoice numbers, orphaned credit notes, version-PDF clutter).
Related
More on the revision workflow
Stop redoing invoices from scratch
Try a tool that treats revision as a state, not a new document.
Clockout invoices have a built-in revised state. Same invoice number, same audit trail, no v2.pdf clutter. Free plan available.