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MGS Private · Property Development Services

The Problem
with Partitions

Partition arrangements — where co-owners divide property between themselves — are commonly used in development contexts. But they create significant stamp duty and CGT risks that are frequently overlooked and can result in substantial unexpected tax liabilities.

The Partition Problem

Why partitions create
serious tax risk


A partition occurs where co-owners of property divide it between themselves — each taking outright ownership of a portion in lieu of their shared interest in the whole. This is common in development contexts where two investors jointly purchased a parcel of land and wish to develop their separate portions independently.

The tax risks arise because each co-owner disposes of their interest in the other’s portion and receives sole ownership of their own portion — potentially triggering both stamp duty (on the portion received from the other co-owner) and CGT (on the portion disposed of).

  • Stamp duty — the partition may be a dutiable transfer of dutiable property in NSW
  • NSW: duty concession for equal partitions — but “equal” is assessed by value, not area
  • CGT — each co-owner may trigger CGT Event A1 on their disposal of the shared interest
  • Where the land is development stock (a revenue asset), ordinary income implications arise — not just CGT
  • GST — if the partition is a taxable supply, GST may apply on the value of the interest transferred
  • All three taxes must be analysed simultaneously before any partition is completed

Do not proceed with a partition without specialist tax advice. The consequences — potentially full stamp duty on the value of the interest received, plus CGT or ordinary income tax on the interest disposed of — can be substantial and are difficult or impossible to reverse once the partition is completed.

Alternatives to Partition

Achieving the development objective without the tax risk

Joint Venture Agreement
Co-owners can develop their portions pursuant to a properly structured joint venture agreement — without formally partitioning the land. Each party’s obligations and entitlements are defined in the JVA, and the land remains in joint ownership until developed and sold.
Allotment & Subdivision
Where the development involves subdivision, the allotments are created by the subdivision — not by a partition of the original parcel. Each co-owner can then acquire their relevant lot(s) from the development entity as a purchaser, avoiding the partition entirely.
Separate Acquisition Structures
Where possible, structuring the original acquisition so that each party acquires their portion separately — rather than acquiring jointly and then partitioning — eliminates the partition risk entirely from the outset.
Pre-Partition Private Rulings
Where a partition is the only practical option, obtaining a private ruling from the ATO (and a duty ruling from Revenue NSW) before completing the partition can provide certainty about the tax consequences of each specific partition.

Considering a partition arrangement?

Get specialist advice before proceeding — the tax consequences of an unplanned partition can be severe.

Still have questions?
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Postal Address: GPO Box 512
Sydney, NSW 2001, Australia
Phone: (02) 9231 5111
Email: contact@macquariegs.com.au
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