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Sep 28, 2026 3 Min read

What happens to your shares when a company changes its ticker?

Same company, same shares, new code. Here's why a ticker change can split your records in two, and what it means for your tax.

You bought Zip Co in 2021 under the code Z1P. In 2023 it became ZIP. Same company, same shares, same price you paid. Then you sell and export your history for tax.

The export shows a Z1P purchase that was never sold and a ZIP sale that was never bought. Read literally, that's a holding you still own and a sale taxed on the full proceeds. Both are wrong.

What is a ticker change?

A ticker change, or symbol change, is when a company's trading code changes but the shares don't. You keep the same number of shares in the same company. Only the label moves.

It usually follows a rebrand. Facebook became Meta and FB became META. Square became Block and SQ became XYZ.

What it means for tax

In Australia, a ticker or name change on its own is generally not a CGT event. You haven't sold anything, so your cost base and purchase date carry over unchanged.

That matters when you do sell. Your gain is worked out against what you originally paid, and if you've held for more than 12 months you keep that for the CGT discount, no matter when the code changed.

Why it causes problems at tax time

Your broker records each trade against whatever code was in use that day, so a buy under the old code and a sale under the new one can look like two unrelated holdings. Brokers also handle the change differently, so the same event can look different depending on where you held the shares.

A tool that doesn't spot the change will either show the old code as still held, or treat the whole sale as a gain because there's no purchase behind it.

How Summ handles it

Summ handles ticker changes automatically. It carries your holding across to the new code with the same number of shares, the same cost base and the same purchase date, and nothing is recorded as bought or sold.

You'll see the change in your transaction history, so it's clear what happened and when. Trades and dividends from before the change stay under the old code, and it all reads as one holding.

When it's not just a ticker change

A few events can look like a ticker change on a statement but are taxed differently:

  • Redomicile. The company moves its listing overseas and swaps your old shares for new ones. This can be a CGT event, with rollover relief in some cases.
  • Merger or takeover. The old code disappears because the company was bought. That's generally a disposal of your old shares.
  • Delisting. The code is retired because the company was taken private, wound up or removed from the exchange. The tax outcome depends on why, and what you got.

Our corporate actions guide covers these. How any of them applies to your holding is a question for your tax agent.

Keep your holdings in one piece

Summ supports Australian and US shares and ETFs alongside crypto. Import your broker history by CSV and ticker changes, splits, consolidations, dividends, capital returns, demergers and mergers are handled for you, so a long-held portfolio reconciles from your first purchase to your last sale.

Add your stocks to Summ

Get started with Summ.

Frequently asked questions

Is a ticker change a CGT event in Australia? Generally no. Nothing has been sold, so your cost base and purchase date carry over.

Does my 12-month CGT discount clock restart? Generally no. They're the same shares before and after, so your purchase date doesn't change.

Why does my broker show a sale of the old code and a buy of the new one? Some brokers record a ticker change that way for their own bookkeeping. It isn't a sale for tax, and Summ treats it as a ticker change.

What about dividends paid before the change? They stay under the old code, because that's what the shares traded as at the time.


This article is general information about how symbol changes are usually treated under Australian tax rules and how Summ records them. It is not tax, financial or legal advice, does not take your circumstances into account, and should not be relied on to work out your own tax position. Speak to a registered tax agent about your own holdings.

The information provided on this website is general in nature and is not tax, accounting or legal advice. It has been prepared without taking into account your objectives, financial situation or needs. Before acting on this information, you should consider the appropriateness of the information having regard to your own objectives, financial situation and needs and seek professional advice. Summ (formerly Crypto Tax Calculator) disclaims all and any guarantees, undertakings and warranties, expressed or implied, and is not liable for any loss or damage whatsoever (including human or computer error, negligent or otherwise, or incidental or Consequential Loss or damage) arising out of, or in connection with, any use or reliance on the information or advice in this website. The user must accept sole responsibility associated with the use of the material on this site, irrespective of the purpose for which such use or results are applied. The information in this website is no substitute for specialist advice.

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