Ask your builder to put the variation in writing

Your builder has told you about a change to the job and what it will cost. Write down what was said, sign it, and we send it to your builder to sign from the link in their email. You both get the signed PDF.

$9.90 to send it. Your builder signs free, and the preview PDF is free.
Your builder signs from a link. We email it to them; they sign on a phone or a computer, no app or account. If they won't sign, you're told why.
Follows your state's rules. It asks for what your state requires and prints its statement, and the PDF ends with a signing record: who signed, when, and from which device.

See a signed example (PDF)A fictional job, signed by both parties.

What goes on it

What changes, line by line, with the price of each part — work added and work taken out.
Photos, a quote or a drawing, attached as numbered annexures.
The net change, GST, the total and the new contract price, worked out as you type.
When the extra is paid, and whether the finish date moves.
The wording for the state the house is in, and both signatures.

What each state's law says about variations: NSW · VIC · QLD · WA · SA · TAS · ACT · NT. A summary with sources, not legal advice.

Who is sending it

State or territory of the site

Your details — the owner

Your name, or all the owners' namesPerson signing (optional)If one of you signs for all the owners.EmailYour copy and the signed PDF come here.Phone (optional)Address (optional)

The builder — who signs it

Builder's business namePerson signing (optional)Who signs for the builder. It goes on the document, and their name is filled in when they sign.EmailThe signing link goes here. It must be different from yours.Phone (optional)ABN (optional)Address (optional)

Site and contract

Project name (optional)What you both call the job. It goes first on the document.Site addressContract date (optional)Contract reference (optional)Original contract price, inc GST (optional)The price in the signed contract.Contract price before this variation, inc GST (optional)The original plus the variations signed before this one. On Variation 1 you can leave it blank.

It is a cost-plus contract

The variation

Variation numberAsked for byDate it was asked for (optional)What changes — the work added or taken outWhy it is neededRequired in VIC when the builder asks for the variation.

It adjusts a prime cost item or provisional sum (an allowance in the contract)

Price — amounts ex GST

Margin on the work added, % (optional)Worked out on the lines marked Add, before GST, and printed as its own line.

Net change ex GST: $0.00
GST 10%: $0.00
Total inc GST: $0.00

Payment, time and permits

When the extra is paidNever before the varied work starts.

It changes the completion date — VIC requires the delay estimateIt needs an amended building permit, approval or plans

Substantiation

Optional. Photos of the work, quotes, dockets or drawings that back the variation — up to 10, 20 MB in all. Each goes in after the signatures as a numbered annexure: an image fitted to its page, a PDF listed with its link.

Add photos or PDFs0 of 10 · 0 KB of 20 MB

Files upload as you add them and are kept privately. If the variation isn't sent, they're deleted after a day.

Before it can be sent

Your name (the owner)
Your email address
The builder's name
The builder's email address — the signing link goes there
The site address
A description of the work added or taken out
At least one priced line
Why the variation is needed (VIC)

The preview is free and marked PREVIEW. Nothing is sent or stored until you sign and send it.

Sign and send

Still to fill in: Your name (the owner), and 7 more listed above.

VARYPRO

Contract variationVariation 1

Contract variation

Variation 1 to the parties' contractPreview — not sent

Builder

Name

Owner

Name

Site

Site address

State

VIC

The variation

Requested by the builder

Describe the work added or taken out

Price

Work added (+) or taken out (−)	Amount ex GST
No priced lines yet

When the change in price is paid

With the next progress claim after the varied work starts

Never before the varied work starts.

Time

No change to the completion date.

Permits and approvals

No amended building permit, approval or plans needed.

Net change (ex GST)	$0.00
GST 10%	$0.00
Total change (inc GST)	$0.00

Victoria — the law this document follows

The builder gives this notice of a variation under section 37 of the Domestic Building Contracts Act 1995 (Vic). The builder must not give effect to the variation unless the owner gives a signed consent to it; the owner's signature on this document is that consent.

This records an agreement between the parties under their own contract. VaryPro prepares and delivers the document; it is not a party to it and does not give legal advice.

Signed by the builder

Signed when the document is sent

Signed by the owner

Signed when the document is sent