IBKR - Which pricing structure best fits DCA into LSE and buying of US stocks & ETFs?

Hi,

Tiered pricing is almost always cheaper especially for US market unless you're trading in very large investment sums.

You can change between fixed and tiered pricing, but it will take about 1 day for the change to be implemented.

Also, you can buy CSPX using tiered pricing. You will be charged in USD.

Hope this helps!

Regards,
thefrugalstudent

Tiered pricing is generally cheaper. Fixed pricing may only be better if you trade in large amounts per trade.