Hi Emma,
2015 tax return:
Block of Land-- sold $1,000,000, purchased in 1991 for $250,000. Add $10,000 legal fee and $5,000 stamp fee to cost of purchase. The $25,000 cost of sale is also added to the basis, which will make your adjusted basis $240,000. Long-term capital gain will be $711,000.
The $32,000 interest is investment interest is best if you can itemize on Schedule A. If you are a "qualified real estate professional", meaning that you spent at least 750 hours in real estate activity during the year, you can deduct the interest expense on Schedule C (self-employed).
Council, water and insurance rates totaling $22,000 will be fully deductible if you are a qualified real estate professional as described in the previous paragraph. If not, then it will be investment property maintenance fees on Schedule A (attach statement). The amount of deductibility of the $27,000 dangerous tree removal is up for discretion. if it was done close to the sale of the land, it could be added to the cost basis. if not, then it will be an schedule A maintenance expense or direct expense if you are a qualified real estate professional.
1000 sh. Rio Tinto Stock paid $3500 in 1982, Sold for $50,850. Cost of sale $1,017 = taxable LT gain $46,333.
Stamp Collection -- Purchased in 2015 for $60,000; sold in 2015 for $50,000 plus auction fees $5,000 = $15,000 short term loss; only $3,000 of it is allowed in 2015. The rest is carried over to future years until used up.
Grand Piano --- bought in 2000 for $80,000, sold in 2015 for $30,000. If personal property, no loss is allowed. if not, then same rules apply as in the stamp collection.
Long term capital gains have a lower tax rate than short term capital gains.
Reference IRC Title 26, Subchapter O, sec 1001-1002 (a) thru (c).