> For the complete documentation index, see [llms.txt](https://reference-guide.gitbook.io/crm-version-release-notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://reference-guide.gitbook.io/crm-version-release-notes/v4.0.0-introduction-of-new-ib-commission-payout-model-spread-percentage.md). # V4.0.0 - Introduction of New IB Commission Payout Model: Spread Percentage **Released Date - 19 Mar 2022** We are excited to announce the introduction of a new commission payout model for IBs: Spread Percentage. With this feature, you now have the ability to configure IB commissions to be paid out as a percentage of the spread, offering enhanced flexibility and customization options for commission structures. This commission structure exclusively applies to MT5 only. The calculation formula for the spread payout = Spread (Ask - Bid) x rebate parameter x lot size. For instance, if a client trades 1 lot of USDJPY, with an entry ask price of 118.888 and an entry bid price of 118.868, the spread is calculated as (118.888 - 118.868) = 20 pips. Consequently, the IB receives a rebate: 20 pips \* 20% \* 1 lot = 4 USD.