Why were funds not available at the credit union?

I deposited a check into another person's account at a credit union on a Thursday. My bank account was debited the amount ($300) on Friday. Why was there a 3-day hold on the payee's account? It caused her many fees.|||Banks and credit unions don't use the actual time it takes to clear a check. That would take too much work for them.





Generally they place hold based on regulation CC, see link below.





When you deposit a check, they should be able to tell you when the funds will be available. If you need the funds earlier, you can request it, and depending on circumstances they may put a shorter hold on it.