Latest news from the Ukrainian tax office is that if you capture a Russian tank, it's not considered a taxable asset.
"Have you captured a Russian tank or armored personnel carrier and are worried about how to declare it? Keep calm and continue to defend the Motherland! There is no need to declare the captured Russian tanks and other equipment, because the cost of this ... does not exceed 100 living wages (UAH 248,100)," NAPC's press service said.
Ukraine is obviously in a desperate situation at the moment, but arming your population with guns and molotov cocktails, and telling them they get to keep any Russian hardware they capture is quite a creative approach.
Hereby I pledge any profit I make by purchasing Putin's tanks in full to support Ukrainians. 100% tax is fine for me on this case.