Assets=Liabilities+Equity, How DTA play role in here?
What happens once senior preferred is considered paid off and lower DTA because of tax rate goes down from 35% to 25%?
$187B liability goes to zero
DTA goes down from $60B to $30B.
You're going to get two different answers here. My answer is that (until I am convinced otherwise) once the senior preferreds are extinguished FnF will have capital positions around where they are now. The other answer is that extinguishing the senior preferreds will put more than enough capital in the equity portion of the balance sheet to offset a reduction in the value of the DTAs.
Fannie reported a total stockholder equity of $3.468B in its last 10-Q. That's essentially the net worth, what's leftover when you subtract liabilities from assets. The DTAs' reported value is $30.454B. Lowering that proportionally (multiply by 0.25/0.35) gives $21.753B, so the DTA writedown would lead to a reduction of $8.7B. That reduction in assets would be balanced by a reduction in retained earnings (actually an increase in the accumulated deficit), and the net worth of the company would be 3.468B - 8.7B = -5.233B. Thus Fannie would have to draw $5.233B from Treasury to maintain non-negative net worth.
Of course this would be offset by any income Fannie makes in the next quarter. The DTAs will also decrease in value naturally by the amount of tax Fannie otherwise would have paid. It might not be enough, though, so the "threat" of a draw is quite real as things stand.
So in my scenario, even if the senior preferreds are declared extinguished (NWS is rolled back) there will need to be a capital infusion once the DTAs are written down.