Trouble tracking T- Bills

Question

I followed instructions from Tom Young superuser May 1
 When I bought one t-bill for 100,000 I paid 99,903.56.  In the buy bonds window, if I enter the total cost I paid it automatically enters price 9990.356 and shows as 10 bonds.   If I enter the price for one bond 99,903.56 it automatically enters the total cost of 999,035.60.  How am I not doing this correctly?

When I use the sell bond window, I must use the price 9990.356 ,  10 shares, the correct interest 96.44 to get back to my original 100,000 t-bill value

Thanks to whomever may help me with this.

volvogirl · Answer

Probably as 2 transactions.  A Sell and then Buy a new one.  The sell will give you cash in the account that you use to buy the new one.

dnovak3 · Answer

How would I record a T-bill that matures and gets reinvested for the same amount, ie $100,000, but at a different interest rate?

Tom Young · Answer

Here's one way of getting this right.  
First, at the maturity date record an IntInc action for the $96.44, specifying the T-Bill as the security.  Next, sell the T-Bill at the same price as your purchase price, for no gain or loss.  Those two transactions will put the cash of $100,000 into the Account.  Then transfer the cash back to your checking Account.