Choose your trading platfom

Calculating CFD margins

In order to open a CFD (contract for difference) position on your account, you will need to deposit an amount of money known as margin.

The margin reflects a percentage of the full value of the position, and is referred to as 'position margin' on our platform. The position margin will be calculated using the applicable margin rates, as shown in the product library area on the platform. Read more about our CFD margin rates.

See inside our platform

Get tight spreads, no hidden fees and access to 12,000 instruments.

CFD margin explained

For shares, different margin rates may apply depending on the size of your position, or the tier your position (or a portion of your position) in that instrument falls within. The portion of the position that falls within each tier is subject to the margin rate applicable for that tier.

In order to calculate the position margin, the level 1 mid-price (shown on the platform) is used.

Position margin example

Company ABC (GBP) margin rates

TierPosition size (units)Margin rate


                       Unit in Tier 1 x Tier 1 Margin rate

                       Unit in Tier 2 x Tier 2 Margin rate

The sum of:    Unit in Tier 3 x Tier 3 Margin rate    x level 1 mid-price

                       Unit in Tier 4 x Tier 4 Margin rate

                       Unit in Tier 5 x Tier 5 Margin rate

Based on the margin rates in the table below for Company XYZ ($AU), if a position of 6500 units used the level 1 mid-price of $2.75, the margin would be $5,225.

Join a trading community committed to your success

CFD margin calculator

Your position margin requirement is calculated as follows:

TierPosition sizeMargin rateCalculation
11,00020%1,000 x 2.75 x 20% = $550
22,00025%2,000 x 2.75 x 25% = $1,375
32,00030%2,000 x 2.75 x 30% = $1,650
41,50035%1,500 x 2.75 x 40% = $1,650
Total6,500Total = $3,437.50

The notional value of your total position is $17,875.00 ($6,500 x $2.75).

CFD margin requirement

As you can see, margin trading allows you to open a position by depositing a percentage of the full value of the position. This means that your losses will be amplified and you could lose more than your initial deposit. Profits and losses are relative to the full value of your position.

Trading using margin is not necessarily for everyone, so you should ensure that you understand the risks of CFDs, and if necessary, seek independent professional advice before placing any trades.