Timber tax is one of the highest-leverage decisions a Mississippi or Alabama landowner makes around a timber sale — and one of the most commonly mishandled. A correctly filed sale with proper basis allocation, depletion, and Section 631(b) treatment can produce a federal tax bill several times lower than the same sale filed as ordinary income with no basis recovery.
This Field Note covers the timber tax basics every landowner should understand before a sale. It is not tax advice — every situation runs through a CPA — but it identifies the concepts that drive the conversation.
Capital Gains Treatment vs. Ordinary Income
The first question on any timber sale is whether the gain is taxed as long-term capital gain or ordinary income. Long-term capital gains rates are usually substantially lower than ordinary income rates for the same dollar amount.
Capital gains treatment generally requires:
- The timber was held for more than one year.
- The landowner is an investor or qualifies under Section 631(b) for capital-gain treatment on a sale with retained economic interest.
- The sale is structured to support the capital-gain election.
Landowners classified as being in the "trade or business" of timber face different treatment, with active-business considerations. Most family landowners with one tract or a small portfolio fall into the investor category.
Section 631 — the Working Mechanism
Section 631(a)
Allows a landowner who cuts their own timber to elect to treat the standing-timber value at cut as a capital gain, with post-cut processing taxed as ordinary income. Used by landowners running their own logging operation. Less common for typical Mississippi/Alabama landowners selling standing timber to a buyer.
Section 631(b)
Provides capital-gain treatment for landowners who dispose of standing timber under a contract in which the landowner retains an economic interest. Practically, this covers most per-ton (pay-as-cut) sales and properly structured lump-sum sales. 631(b) is the working capital-gains mechanism for most Mississippi and Alabama timber sales today.
Basis and Depletion
Basis is what the landowner has invested in the timber for tax purposes. It includes the original purchase price (or stepped-up value at inheritance) allocated to standing timber, plus capitalized planting and improvement costs, less any prior depletion claimed.
Depletion is the mechanism that recovers basis as timber is sold. When timber is harvested or sold, a depletion deduction reduces the taxable gain by the basis attributable to the units sold. Skipping depletion overstates the gain and overpays the tax.
Correctly tracking basis requires:
- A basis allocation at acquisition between land, timber, and other improvements — ideally by a registered forester at the time of purchase or inheritance.
- A depletion schedule maintained over time, tracking total volume, basis per unit, and units depleted in each sale.
- Form T filed with the return to document the timber activity.
Companion reading: stepped-up basis vs. carryover basis on timberland and stepped-up basis on inherited timberland.
Form T — the Forest Activities Schedule
IRS Form T (Timber) is used to report timber-related activity, including acquisitions, timber depletion, sales, and reforestation. Form T is not required on every timber sale. The current IRS instructions for Form T include an exception for taxpayers with only an occasional sale of timber, and other filing considerations depend on the transaction and the owner’s situation. Landowners should follow the current IRS instructions and confer with a tax professional to determine whether Form T applies to a specific sale.
Even when Form T is not filed, landowners still need to keep adequate records supporting ownership, timber basis, any depletion claimed, sale proceeds, related expenses, and the structure of the transaction. Depletion is often overlooked when no one is tracking basis, which can overstate taxable gain.
Not tax advice. Timber taxation depends on ownership, basis records, the sale structure, and the landowner’s individual circumstances. This information is educational and is not tax or legal advice. Landowners should consult a qualified tax professional familiar with timber transactions. Authoritative sources include the IRS Form T page and current instructions, the National Timber Tax Website, and university forestry-tax resources.
Last reviewed against the IRS Form T instructions and the National Timber Tax Website on July 24, 2026.
Reforestation Deduction and Amortization
Under current federal rules, landowners can typically deduct a portion of qualified reforestation expenses in the year incurred and amortize the remainder over a defined period. The mechanism makes the after-tax cost of replanting after a harvest meaningfully lower than the pre-tax cost. Documentation requirements are real but manageable with a competent preparer.
Casualty Loss
Storm and wildfire damage to standing timber on a Mississippi or Alabama tract can qualify for a federal casualty-loss deduction. The deduction is generally the lesser of the decrease in fair market value or the timber's adjusted basis, and it requires a written appraisal by a registered forester to support the numbers. See salvage timber sales after storms for the field side of this process.
State Income Tax
Mississippi and Alabama both tax timber sale income at state rates. The interaction between federal capital-gains treatment and state treatment varies; both states generally accept the federal characterization, but rates differ from federal long-term capital gains rates. A timber-aware CPA models both.
Severance Taxes
Mississippi and Alabama both levy timber severance taxes on harvested timber, typically paid by the buyer at delivery to the mill and reflected in the stumpage. The severance tax is separate from income tax. Most landowners see it as a deduction on the settlement sheet rather than as a separate filing.
Where Forestry Records Support a Tax Professional
Example forestry scenario for local landowners. After a timber sale, a landowner may need records showing timber volume, sale proceeds, ownership history, acquisition information, expenses, and any existing timber-basis documentation. A forester may provide cruise data, valuation information, depletion-related volume records, and technical support for an appraisal. A CPA or tax attorney determines whether depletion, capital-gain treatment, Form T, casualty provisions, or other reporting rules apply. This is not tax advice, and no particular tax treatment, deduction, election, or filing result is guaranteed.
Where Timber Tax Saves the Most
The largest tax savings show up on:
- Inherited tracts with a defensible stepped-up basis.
- Long-held tracts where a basis allocation was done at purchase and depletion has been tracked.
- Sales structured under Section 631(b) per-ton or lump-sum contracts.
- Reforestation following a final harvest.
- Casualty events with a registered-forester appraisal.
These cases come up commonly across the Pine Belt — Jones, Forrest, Covington — and across east-central Mississippi (Lauderdale, Newton) and west Alabama on long-held family timber.
The Right Sequence
The right sequence around a Mississippi or Alabama timber sale is forester → contract → sale → CPA, with the forester handling cruise, prospectus, basis support, and harvest oversight, and the CPA handling the return. Skipping the forester usually means missing basis. Skipping the timber-aware CPA usually means missing depletion and Section 631(b) treatment. The combined miss can be the largest single avoidable cost on the sale. Help with the forester side is the work covered by our Mississippi timber sales and timber appraisal practices.