SPP Harvester by OnMarket, page-252

Thing Commsec is 0.12% not 0.012% at 30k but yes $36 ONCE.

IB is a relevant pricing item to mention as they are getting you to trade through there platform which for retail is 0.08% with a min of $6 per trade so $24 on each.

Its quite bold to sight in docs that they do cheaply by getting bulk but doing yourself retail through same provider $24 not $30.

https://www.onmarket.com.au/help-faq/spp-harvester/what-is-the-brokerage-on-spp-shares-sold/

What is the brokerage on SPP shares sold?

All SPP Harvester trades incur a brokerage, or commission, fee. Once the shares have been allocated to your account, SPP Harvester will automatically sell all of your shares in the stock, bar one. The brokerage (or commission) on this sell down is the lesser of:$30 plus 0.4% of sale proceeds, plus any exchange and clearing fees; and 1.28% of sale proceeds. The brokerage (commission) on the sell-down can be seen in the activity statement, found via the Client Portal under Reports > Activity Statement. Please note that a reference to brokerage (commission) can also be seen under “Orders & trades”. This refers to the estimated brokerage of orders at the time of the orders are entered, and the final brokerage (displayed on the Activity Statement) may change slightly from the estimated brokerage shown on the Orders and Trades tab.

$30 + 0.4% ($120) is that min $150 per 30k sold?

Looks like 1.28% is cheaper where SPP sell off is $3409 or less, the brokerage at that rate then is $43.63 down to whatever 1.28% of a single share if SPP oversubscribe results in a single extra share and a big refund?