Is a proforma invoice the same as a quote or a deposit invoice?

No — they are different document families. A quote or estimate is a priced offer; a deposit invoice bills a partial amount as a real tax invoice. A proforma is a non-accounting pre-payment document issued before goods or work, and this page keeps it in its own proforma records, separate from those.

Does Cash Workspace create or send the proforma for me?

No. You create, number, and send the proforma and the final tax invoice in your own invoicing tool. Cash Workspace organizes the documents you upload and lets you record the conversion event — it does not generate, send, or process invoices, and it does not sync with your bank.

What does 'converting' a proforma mean here?

It is the moment you issue a final tax invoice that replaces the proforma. You record that event on the proforma record — the final invoice number, the conversion date, and the issued tax invoice attached — so the two documents trace to each other.

What should I do with a proforma that was never accepted?

Mark its status Expired or Declined and keep it filed rather than deleting it. That preserves the proforma number sequence and leaves a clear record that it was issued but never converted.

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Invoice lifecycle organization

Proforma invoice records and the conversion to a final tax invoice

A proforma invoice is a pre-payment document you send before the goods ship or the work begins. It looks like an invoice and states what you intend to bill, but it is not a final tax invoice — it does not post to your books and it is not the document your client pays against for accounting purposes. The problem comes later: once the proforma is accepted and the real work is done, you issue a final tax invoice, and the original proforma quietly disappears into an email thread. Months later nobody can show which proforma a given invoice grew out of, or whether a proforma was ever converted at all. Cash Workspace gives the proforma its own record so the document, its accepted-or-not status, and the final tax invoice it became all sit in one place. This page covers exactly that: the proforma document type and the conversion event. It is organizational guidance, not tax or accounting advice, and it is free.

Start a free workspace Trace a sent invoice back to its source

The problem

Why a proforma needs its own record

A proforma sits in an awkward spot: it is more formal than a casual quote but less final than a tax invoice, and most filing systems have no slot for it. So it gets emailed, the client pays or proceeds, you raise the real invoice, and the proforma is never connected to anything again. That breaks the trail in predictable ways.

You can find the final tax invoice but cannot show the proforma that was sent and agreed to first, so the figures on the invoice have no documented origin.
Two documents that describe the same job — the proforma and the final invoice — live in different places with no link between them.
You lose track of which proformas were accepted and converted versus which are still sitting unanswered, because there is no status on the document.
A proforma gets mistaken for a real invoice (or vice versa) because nothing labels it as the pre-payment, non-accounting version.
At a later review or handoff, a proforma surfaces with no record of whether it ever became a real invoice — leaving an unexplained gap.

The workflow

From issued proforma to converted tax invoice

Two stages, kept in one record: file the proforma when you send it, then log the conversion when it becomes a final tax invoice. You create and number both documents in your own invoicing tool — Cash Workspace organizes the documents and the conversion event, it does not generate or send invoices.

1
Create the proforma record when you issue it
When you send a proforma, make a record named like Proforma PF-2026-014 — Castello Build, attach the PDF you sent, and fill the fields: proforma number, client, date issued, amount, and what it covers (deposit before goods, full pre-payment before work, etc.). Status starts at Issued / awaiting acceptance.
2
Update the status as the client responds
When the client accepts or pays against the proforma, move the status to Accepted. If it lapses or is declined, mark it Expired or Declined and note the date. This keeps the record honest about which proformas are still live without any automatic tracking on Cash Workspace's side.
3
Log the conversion to a final tax invoice
When you raise the real tax invoice in your invoicing tool, record the conversion on the proforma: enter the final invoice number (e.g. INV-2026-061), the conversion date, and attach the issued tax invoice PDF to the same record. The proforma and the invoice it became now live together. Set status to Converted.
4
File the completed record into the fiscal-year folder
Move the converted record into a Proforma invoices / 2026 folder so the whole set — issued, accepted, converted, expired — is reviewable by year. The proforma stays as supporting backup behind the final invoice; the tax invoice itself remains your accounting document.

Record structure

Fields to record on a proforma

Capture enough to identify the proforma, track whether it converted, and tie it to the final tax invoice. These are the metadata fields per proforma record.

Proforma number: Your own reference for the proforma, kept distinct from your tax-invoice numbering so the two series never collide — e.g. PF-2026-014.
Client / recipient: Who the proforma was issued to, matching the name on the document — e.g. Castello Build Ltd.
Date issued: When you sent the proforma, so you can see how long it has been awaiting a response.
Amount and what it covers: The proforma total plus a short note on its purpose — full pre-payment before work, advance before goods ship, etc.
Status: Issued / awaiting acceptance, Accepted, Converted, Expired, or Declined — the single field that tells you where the proforma stands.
Final tax invoice number: The number of the real invoice this proforma became once converted — e.g. INV-2026-061. Blank until conversion.
Conversion date: The date you issued the final tax invoice that replaced the proforma, marking the conversion event.
Attachments: The proforma PDF you sent and, after conversion, the issued tax invoice PDF — both filed on the one record.

Example setup

An example proforma folder layout

A simple per-year folder holding proforma records at each stage, plus a couple of subfolders for items that need separating. Record names carry the proforma number and client so they are scannable at a glance.

Proforma invoices / 2026 / Converted

Completed records: Proforma PF-2026-014 — Castello Build (converted to INV-2026-061), each holding the proforma PDF and the final tax invoice PDF together.

Proforma invoices / 2026 / Awaiting acceptance

Proformas issued but not yet accepted or converted: PF-2026-021 — Northwind Cafe, PF-2026-022 — Lehmann GmbH, each with the sent PDF and date issued.

Proforma invoices / 2026 / Expired or declined

Proformas that were never acted on or were turned down, e.g. PF-2026-009 — Tidal Studio (expired), kept so there is no unexplained gap in the number series.

Proforma invoices / Templates

A reusable proforma checklist record listing the fields to fill and the two PDFs to attach, cloned each time you issue a new proforma.

Common mistakes

Common mistakes to avoid

Treating the proforma as the accounting document. The final tax invoice is the record your books rely on; the proforma is the pre-payment document that preceded it and is kept as backup.
Reusing one number series for proformas and tax invoices, so the two get confused. Keep PF- and INV- sequences separate.
Filing the proforma and the final invoice in different places with no link, defeating the whole point of the record.
Leaving a proforma at Issued forever. Update it to Accepted, Converted, Expired, or Declined so the status reflects reality.
Mixing proformas in with quotes and estimates. A proforma is a different document family — keep it in its own proforma records.
Deleting expired proformas, which leaves an unexplained gap in your number sequence. Keep them filed under Expired or declined instead.

How it helps

How Cash Workspace helps

A dedicated home for the proforma document type

Proformas get their own records and folders, separate from quotes, draft invoices, and final tax invoices, so a pre-payment document is never mistaken for an accounting one.

The proforma and its final invoice on one record

Attach the proforma PDF when you issue it and the tax invoice PDF when you convert, so both documents and the conversion details live together.

A status that tracks conversion

Mark each proforma Issued, Accepted, Converted, Expired, or Declined yourself so you always know which proformas have become real invoices and which are still open.

Fiscal-year folders for the whole set

Group proforma records by year so the complete series — converted and not — is reviewable and the number sequence has no unexplained gaps.

Quote-to-invoice conversion records

Link each issued invoice back to the accepted quote or estimate it was built from — a different document family from the proforma covered here.

Draft invoice staging folder

Hold tax invoices that are authored but not yet sent. Distinct from a proforma, which is a finished pre-payment document you have already issued.

Invoice lifecycle stage map

See where every invoice stage's records live — including where converted proformas and their final invoices belong in the wider map.

Invoice version history folder

Preserve the ordered revisions of a tax invoice and mark the current one — separate from the proforma-to-invoice conversion event.

Receipt and invoice organizer

The core workspace for filing invoices and attaching their backup documents, where converted proformas sit behind their final invoices.

Invoice tracking template

A ready structure for tracking issued invoices and their statuses, useful once a proforma has converted into a final tax invoice.

Finance workflows hub

Browse the full set of invoice-lifecycle and finance-organization workflows, of which proforma records are one piece.

FAQ

Frequently asked questions

Is a proforma invoice the same as a quote or a deposit invoice?: No — they are different document families. A quote or estimate is a priced offer; a deposit invoice bills a partial amount as a real tax invoice. A proforma is a non-accounting pre-payment document issued before goods or work, and this page keeps it in its own proforma records, separate from those.
Does Cash Workspace create or send the proforma for me?: No. You create, number, and send the proforma and the final tax invoice in your own invoicing tool. Cash Workspace organizes the documents you upload and lets you record the conversion event — it does not generate, send, or process invoices, and it does not sync with your bank.
What does 'converting' a proforma mean here?: It is the moment you issue a final tax invoice that replaces the proforma. You record that event on the proforma record — the final invoice number, the conversion date, and the issued tax invoice attached — so the two documents trace to each other.
What should I do with a proforma that was never accepted?: Mark its status Expired or Declined and keep it filed rather than deleting it. That preserves the proforma number sequence and leaves a clear record that it was issued but never converted.

Organization, not accounting

A proforma invoice is a pre-payment document, not an accounting record; your final tax invoice is the document your books rely on. Cash Workspace helps you file proformas, record when they convert, and attach the resulting tax invoices — it does not generate or send invoices, does not sync with your bank, and does not read or classify your documents automatically. Whether a proforma is appropriate, how it should be numbered, and how it is treated for tax are decisions for you and your accountant. This page is organizational guidance, not tax or accounting advice.

Keep every proforma tied to the invoice it became

Start a free Cash Workspace and give your proformas their own records — file the document, track whether it converts, and attach the final tax invoice so the whole handoff is in one place. It is free to begin organizing today.