"You are in the business of farming if you cultivate, operate, or manage a farm for
profit, either as owner or tenant," according to the IRS. In case you are audited, you would have to show that you are not filing Schedule F as a hobby farmer.
You can consult
Publication 225, Farmer's Tax Guide to acquaint yourself with the tax implications, but it would probably be a good idea to use an accountant as you proceed with your plans.
You should be able to initiate depreciation of the equipment that you own. New equipment may be expensed if it qualifies for Section 179, otherwise it can be depreciated.
What sort of timber harvest are you talking about? Selling standing timber? Selling firewood?
Selling standing timber would allow you to treat your net (sales -sales expenses - basis) as a capital gain, with tax rates varying form 0 to 20% depending on your ordinary income tax bracket. You should seriously consider hiring a consulting forester if you are selling standing timber.
The tax consequences of selling firewood from your timber would require additional research, but I think your income could be treated as part a capital gain (sale of the standing timber) and part as ordinary income. I have seen this issue come up when property owners do their own logging, but I am hazy on the details.*
Good luck.
Steve
* Edit. I did a little research on this question, but I remain unsure about the answer.
From
Timber Sale Tax Treatment | Missouri Department of Conservation,
"Timber owners who cut timber for use in their trade or business can, under certain conditions, obtain capital gains treatment by "electing to treat the cutting as a sale." This is the so-called Section 631(a) treatment. In simple terms, the owner "buys" the timber from himself and then sells it back to his trade or business......
Proceeds from the sale of forest products other than standing timber are treated as ordinary income. This includes logs, lumber, pulpwood, poles, mine timbers, maple syrup, nuts, bark, Christmas greens and nursery stock. In addition, income from the sale of firewood or pulpwood produced from the limbs and tops of trees is ordinary income."
From
Publication 225 (2013), Farmer's Tax Guide
"Standing timber you held as investment property is a capital asset. Gain or loss from its sale is capital gain or loss reported on Form 8949 and Schedule D (Form 1040), as applicable. If you held the timber primarily for sale to customers, it is not a capital asset. Gain or loss on its sale is ordinary business income or loss. It is reported on Schedule F, line 1 (purchased timber) or line 2 (raised timber). See the Instructions for Schedule F (Form 1040).
Farmers who cut timber on their land and sell it as logs, firewood, or pulpwood usually have no cost or other basis for that timber. Amounts realized from these sales, and the expenses incurred in cutting, hauling, etc., are ordinary farm income and expenses reported on Schedule F.
Different rules apply if you owned the timber longer than 1 year and elect to treat timber cutting as a sale or exchange or you enter into a cutting contract."