Common tax myths debunked

Tax myths spread fast because they’re simple, and the real rules are… not. This guide calls out the big ones we hear from clients, including the “move back in for a year to wipe the CGT” myth.

Myth #1: “If I move back into the property for a year, I’ll get rid of the capital gains tax”

This is one of the most common (and costly) misunderstandings we see.

Myth
Moving back in for 12 months eliminates CGT on a former rental

The reality: moving back in can help in some situations, but it generally doesn’t “erase” CGT. In most cases, CGT depends on how the property was used over your entire ownership period.

  • If the property was your main residence for only part of the time you owned it, you usually only get a partial main residence exemption based on days.
  • If you moved out and rented a former home, you may be able to choose to keep treating it as your main residence for CGT purposes for a period (often called the absence rule), but there are conditions — and it doesn’t apply in every scenario.
  • If the property started life purely as an investment (rented from day one), moving in later generally doesn’t make the earlier rental period “disappear”.
Tell it like it is: “Move back in for a year” is not a magic reset button. At best, it can improve the exemption percentage — it doesn’t automatically wipe the whole gain.
Good example
Former home, rented, then sold — handled properly

You bought a home, lived in it, then moved out and rented it for a period. You kept good records and got advice early. Your final CGT position is worked out correctly (full or partial exemption depending on the facts).

Outcome: the claim is supportable, and you don’t get caught by a nasty “surprise” tax bill later.

Bad example
Move back in briefly, assume CGT is gone, then sell

You rented the property for years, then moved back in for 12 months, thinking that “resets” the CGT. When you sell, the ATO position is still based on your actual use over time, and you can end up with taxable periods.

Outcome: unexpected CGT, and often a scramble for valuations/records after the fact.

Simple way to think about it (illustrative only)
If a property was your main residence for 6 years out of 10, you might only exempt 60% of the gain, and 40% could be taxable (subject to discounts and other rules). The exact outcome depends on your facts (including whether you had another main residence during the rental period).

Other common myths we regularly debunk

Myth
“If I’m paid in cash, I don’t need to declare it”

Reality: if it’s income, it’s generally assessable whether it’s cash, bank transfer, or crypto.

Do instead: record it properly as you go. Undeclared income is one of the fastest ways to create ATO trouble.

Myth
“Having an ABN means everything I buy is deductible”

Reality: deductions generally need a business/work connection and must not be private or domestic in nature.

Do instead: ask “Was this expense incurred to earn income?” and keep invoices that clearly show what was purchased and why.

Myth
“Commuting to work is a tax deduction”

Reality: travel between home and a regular workplace is usually not deductible (with limited exceptions).

Do instead: keep it clean: only claim travel that is genuinely work-related (client visits, work sites, etc.) and record the purpose.

Myth
“Hold an asset for 12 months and you pay no CGT”

Reality: for individuals, holding an asset for at least 12 months may make you eligible for the CGT discount — it reduces the capital gain, it doesn’t eliminate it.

Do instead: plan sales with timing in mind, but don’t assume “12 months = tax free”.

Myth
“Crypto isn’t taxable unless I cash out to AUD”

Reality: swapping one crypto asset for another can trigger a CGT event. It’s not just when you convert to Australian dollars.

Do instead: keep records of each disposal/swap (date, value, fees). Crypto tax is paperwork-heavy.

Myth
“If it’s under $X, I don’t need receipts”

Reality: there are limited record-keeping concessions, but the ATO can still ask you to show how you calculated claims and that they’re work-related.

Do instead: keep digital copies. It takes seconds now, and saves headaches later.

If a “tax hack” sounds too easy, it’s usually missing a condition (or it’s just wrong).

Quick myth-busting checks

Question If the answer is “no”…
Do I have evidence? Assume it’s not safely claimable until you can support it.
Is the expense clearly linked to income? It’s likely private/non-deductible or only partly deductible.
Have I mixed private and investment use? Expect apportionment and extra record-keeping.
Am I relying on a “one weird trick”? Pause and get advice. That’s how people accidentally create tax problems.

Client checklist

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