Our bank has decided NOT to allow same day origination at this time. Does anyone have a checklist of what should we be doing to prepare to receive same day items? thanks,

Nacha has an RDFI checklist on the same day resource website.

https://resourcecenter.nacha.org/

thank you.

One concern is that, if your Originator includes the current or a past date as the effective date of the transfer, it will, by definition, be a same-day transfer whether you want it to or not.

you need to be prepared to post by 5:00 PM local time...