Can your historical date be supported by a retrospective valuation?
Historical CGT events, estate date-of-death values, concession claims and amended assessments all need the value established as at a date in the past — using only the evidence that existed then. Whether that is achievable depends on how far back the date sits and what records survive. Three steps, indicative eligibility.
Important: This tool is educational. It does not constitute tax or legal advice, and it does not commit Prismi to accepting an engagement — eligibility and the evidence base are confirmed at the discovery call. Confirm the correct valuation date for your matter with your accountant or tax adviser. Prismi is not a registered tax agent.
What year does the valuation date fall in?
The valuation date is the date the value must be established as at — the date of the CGT event, the date of death, or the date relevant to the assessment. Not today’s date.
Why retrospective valuations get harder with time.
A retrospective valuation establishes what a business or asset was worth as at a date in the past. The discipline is strict: only information that existed — and was reasonably knowable — at the valuation date can be relied upon. What happened afterwards, however instructive, is hindsight, and hindsight is exactly what a reviewer looks for.
Within about five years, that discipline is usually workable. Financial statements, management accounts, asset registers and industry data from the period generally still exist, and the valuer can reconstruct the contemporaneous picture with confidence. Prismi accepts retrospective engagements in this window, with a surcharge of $495 + GST per historical valuation date reflecting the additional evidentiary work.
Beyond five years, the evidence base rarely supports a defensible retrospective conclusion. Records reach the end of statutory retention periods, comparable data thins out, and demonstrating that hindsight has been excluded becomes progressively harder. Rather than issue a report we cannot stand behind, our policy is to refer these matters to firms specialising in deep-historical valuations.
CGT Event Identifier
Which CGT event does your historical transaction fall under?
Market Value Substitution Indicator
Does s116-30 substitute market value for your historical transaction?
Retrospective Business Valuations
The engagement for amended assessments, estates and prior-year events.
Get a retrospective valuation built on the evidence that existed then.
We confirm eligibility, the evidence base and the right tier at a discovery call — before any fee is fixed.
Book a discovery call