To create an order to spot trade using margin first select Margin - then enter everything in the order form just as you would for a regular spot trade (the "Amount" field still determines the size of the order, the price parameters for the various order types work the same, etc.)
Using leverage means that the order, if executed, will execute through a “two-step” process, involving: first, an extension of margin from Kraken to you; then second, an immediate spot trade between you and one or more counterparties on the Kraken exchange (where you use the margin extension received from Kraken to settle your side of the trade with the counterparty). Note: In order to open a spot position on margin, you will need to hold a sufficient balance of at least one Collateral Currency.If you only hold funds in non-collateral currencies, you will not be able to spot trade on margin until sufficient collateral currency is deposited in your account or acquired from the market.