A profit split is the percentage of funded account profits a trader keeps after passing the challenge and generating gains on the funded stage. Prop firms structure the relationship as a partnership: the firm provides the capital and platform, the trader provides the strategy and execution, and profits are divided according to the split defined in the plan terms. 

The split applies only to profits generated on the funded account, not to any activity from the challenge stage. If a trader earns $10,000 in a payout period on an 80/20 split, the trader receives $8,000 and the firm keeps $2,000. Some firms offer scaling structures where the trader’s share increases over time based on consistent performance or account milestones, moving from an initial 80/20 to 90/10 or higher after specific criteria are met.

The actual value a trader realizes depends on several supporting details: how often payouts are processed, whether the firm applies consistency rules that affect payout eligibility, how quickly withdrawal requests are handled, and whether the firm imposes fees on withdrawals.