A retrospective valuation puts a market value on a property at a date in the past. In capital gains tax work the critical date is often not the settlement date of the sale you are reporting. It might be the day a parent died, the day the family home first went to tenants, or a date thirty years back that nobody thought to document. The tax outcome turns on that figure, so it has to be established properly.

These are among the most common instructions I receive from accountants and private clients in Brisbane. The same situations keep coming up, and they tend to bring the same problems with them. Here is where retrospective valuations arise and what a defensible one involves.

Inherited property and the date of death

When you inherit real estate, your cost base generally depends on the deceased’s circumstances. If the deceased acquired the property before 20 September 1985, or if it was their main residence just before death and was not then being used to produce income, your cost base is generally the market value at the date of death. Nobody orders a valuation in the weeks after a funeral. The need surfaces years later when the property sells, and by then the market has moved and memories have faded.

There is also a rule that generally gives a full exemption where beneficiaries sell the deceased’s former main residence within two years of death. The conditions are specific and extensions are at the ATO’s discretion, so have your accountant confirm which rule applies before briefing a valuer. Their answer sets the valuation date. Where a gain remains taxable, individuals generally receive the 50 per cent CGT discount on assets held for more than 12 months, but the size of the gain being discounted still depends on a properly supported value at the date of death.

The home that becomes a rental

If you move out of your home and start earning rent from it, a special rule can reset your cost base. Where the home is first used to produce income after 20 August 1996, and you would have been entitled to a full main residence exemption had you sold it just before that day, you are generally taken to have acquired the property at its market value on the date it first produced income, which usually means the day the first tenant’s lease began, rather than at your original purchase price.

That is good news in a rising market, because the growth during your years of owner occupation stays exempt. But the rule only helps if the value at that date can be proven, and the date is often five or ten years gone before anyone asks the question. The interaction with the six-year absence rule can also change which dates matter, so settle the tax position with your accountant first, then value the right date.

Pre-CGT assets

Property acquired before 20 September 1985 sits outside the CGT net while it stays in the same hands and in the same form. The complications come at the edges. Death generally brings a pre-CGT property into the CGT system at its market value at the date of death. Major capital improvements to a pre-CGT asset can be treated as separate CGT assets in their own right. Subdivision of pre-CGT land raises its own questions. In each case a market value at a historical date, sometimes as far back as 1985 itself, becomes the foundation of the cost base. These are technical areas. Get specific advice from your accountant or the ATO on whether a valuation is needed and at what date.

Missing records

Sometimes no special rule is involved. The records are simply gone. Contracts from the 1990s were lost in a house move, renovations were paid in cash, or one half of a duplex was always rented while the other was lived in. A valuation cannot replace every missing document, but where the law calls for a market value or an apportionment at a particular date, a retrospective valuation can fill the gap. Your accountant will identify which figures the return requires.

How a past market is reconstructed

A retrospective valuation is built the same way as a current one. The difference is that every input has to be dragged back to the valuation date.

The first job is establishing the property as it stood at that date. Title records, council building approvals, dated aerial imagery, old listing photographs, tenancy agreements, insurance schedules and family photo albums all help establish what was physically there. A kitchen renovated in 2019 does not belong in a 2011 valuation.

The second is reconstructing the market as it stood at that date. Queensland’s sales records run deep, and comparable sales that settled around the valuation date can be identified, confirmed and analysed. The best evidence is sales of similar properties, in the same locality, transacted close to the date, adjusted for differences in land, position, condition and any market movement between sale dates.

The third is keeping hindsight out of it. The valuation must reflect what a willing buyer and a willing seller would have agreed then, on the information available then. A rezoning announced two years later, or a boom that followed, has no place in the figure. Sales that occurred shortly after the valuation date can sometimes serve as a cautious check, but the value cannot be reverse-engineered from what happened next.

Why the ATO wants method, not just a number

The ATO’s guidance on market valuations for tax purposes is clear about what it expects: who valued the property and their qualifications, the valuation date, the definition of market value applied, the evidence relied on, and the reasoning that connects the evidence to the conclusion. A bare figure in a letter does not meet that standard. A real estate agent’s appraisal or an automated online estimate generally will not withstand review either, because neither shows its working.

The burden of supporting the figures in a return sits with the taxpayer, and questions can arrive years after lodgment. A retrospective valuation report from a registered valuer is written to stand on its own long after the sale, with the comparable sales, the adjustments and the reasoning set out in full.

If your CGT position depends on a value at a past date, it is worth getting the valuation right the first time. Call the practice on 07 5550 4055 to talk through your situation and work out which date needs valuing.