Make a single column Balance Sheet with 100% of the basis. In the Equity section, break out the capital accounts between the 25% guy and everyone else (75%).
I get negative $3,857 for the 25% guy’s tax basis capital account.
Then run a column for 100% of FMV. On an FMV basis, the 25% guy’s capital account would be negative $2,091.
Now run a column for 25% of the basis. Here, the only capital account that will show up is the 25% guy, at negative $3,857.
Then run a column for 25% of FMV. Here, the only capital account that will show up is the 25% guy, at negative $2,091.
Now we have some symmetry. It’s clear that the difference between negative $3,857 and negative $2,091 is $1,766. (This is also the difference between the 25% guy’s inside share of the land and the corresponding value of his share of the land).
That would be your 743 adjustment. If you want to prove it out, which you’re trying to do, we’d first compute PTC (Previously Taxed Capital) and add to that amount the 25% guy’s share of the debt.
So, PTC would be (1) negative $2,091 cash rec’d at liquidation (2) minus $1,766 tax gain that would arise. Stop there. These add up to negative $3,857, which is exactly equal to the guy’s pre-death tax basis capital account (hence the phrase, “previously taxed capital”). Next, add $54,138 for his share of the debt, assuming he shares in 25% of the debt. PTC plus debt equals $50,281. This is the 25% guy’s share of the inside basis [25% of the cash = $298…and 25% of the land basis equals $49,983, rounded…the sum total is $50,281]. And note that the $50,281 is the guy’s outside basis right before he died.
Next we look to “cash paid” for the interest. In this case, we look to FMV of the interest, which is the negative $2,091. Add the debt share to that of $54,138. Total is $52,047. And note that this is the stepped-up outside basis of the inheritor.
$52,047 exceeds $50,281 (share of inside basis) by $1,766. This is the exact amount that pre-death ending outside basis is less than post-death beginning outside basis. The Sec 754 election allows this disparity to be cured…if you so choose.