Prop Firm Rule Changes Mid-Account: What Usually Applies to Existing Traders
Posted: Fri Oct 09, 2026 12:12 pm
Firms update rules, sometimes several times a year. The key question is whether changes apply to accounts already purchased.
Common approaches:
Common approaches:
- Grandfathering: existing accounts keep the rules from the purchase date.
- Apply at next stage: rules change when you move from phase 1 to 2 or to funded.
- Immediate: changes apply to everyone, usually announced by email with a short notice.
- Save the terms and FAQ at purchase (PDF or web archive).
- Subscribe to firm announcements, not only social media.
- If a change affects your strategy (e.g. a new hold-time rule), ask in writing how it applies to your account.