The large deposit hold delays the excess over the first $5,000 in checks to the seventh business day (except for any on-us checks, which would only be delayed to the second business day), but the bank is allowed to “order” the checks in any way it wishes. You want the first $5,000 to include all non-next-day checks first. If you haven’t reached $5,000 yet, include any on-us checks. Then and only then, include next-day items like Treasury checks, official bank checks, state and local government checks, etc.
Then, go back to that first $5,000 in checks. Make the first $200 available on the first business day after the banking day of deposit and the rest you can put a second-day availability on.
NOTE: Regulation CC availability minimums are changing on July 1, 2020, and banks must have completed their implementation of those new minimums by that date. Once a bank has made those changes, the dollar amounts in my response will change from $5,000 to $5,525 and from $200 to $225. Banks can use greater amounts than those, and would adjust their calculations accordingly.
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