That is odd. I have never seen a bank account that limits the number of electronic deposits (interest returned at reinvestment). There is no lag in my accounts. It is in my account and available like my paycheck...and invests on the day scheduled. Of course, I do not allow them to mature and cash out unless I intend to spend the money. I simply check the "reinvest" box. The return (when they mature and reinvest) is comingled with my other funds (and usually goes to buying another T-Bill). I generally have planned and requested a purchase before the money is there.

I use the same amount and period for each of my bills because it becomes a routine, and the math is incredibly easy (I cannot make a mistake). Thy are easy to track because each bill is assigned a number when ordered that stays with it throughout its life (until maturity). For example, the last one I purchased was IAACO. They one prior was IAACN...before that IAACM. Treasury direct does a good job of tracking the for you.

All one has to do is look at the Treasury web page for what you have, when it matures and if you have requested reinvestment. I also keep a spreadsheet, but it is really not necessary. Of course, I only have a little over 20. It might be tougher if you had a lot more. Eventually, I will just increase the amount of each to keep the number of them manageable.

The lag is when Treasury w/draws money from a bank account such as when you’re buying a new bill. Treasury has to be sure the money is available, etc. However, once the bill is accounted for on your treasury account, you can have the proceeds from maturity go to the ‘Certificate of Indebtedness’ account. The money in that account is instantly available to treasury so no lag. But, the CoI account is non-interest bearing. It just sits until you redeem or invest all or part of it.

I just revised all my investment accounts over the last several months. At the beginning of the year, I rebalanced my 401K. But I also have an investment account and I hold onto some cash. I also was holding about 50K in savings account at my bank. It pays very little so I moved it to a high yield account paying about 4.5% thru Edward Jones. A few years ago, these type of accounts didn't exist or paid out very little. But the environment changes - it made sense to move the money.

I'm almost 74 and my risk factor has changed as I have aged - so I'm more mindful than ever. T-bills are a good choice too.