Accumulation gets all the attention and decumulation gets almost none — which is odd, because the second one is where tax actually bites.
Sequencing the withdrawal
A systematic withdrawal plan returns capital as well as gains, so only the gain component is taxable. Which asset you draw from first, and in what order, changes the post-tax outcome materially.
Coordinate this with your chartered accountant — the right sequence depends on your full income picture, not just the portfolio.
