Texas ag and timber exemption form: what to file and why

Last updated 2026-07-24

What is the Texas ag and timber exemption form, exactly?

People say "timber exemption form" but Texas doesn't exempt timberland from property tax outright. What it offers is a special appraisal method under Article VIII, Section 1-d-1 of the Texas Constitution, which lets qualifying timberland get valued based on its capacity to produce timber income rather than its market value ^[1]. The form that gets you there is Form 50-168, Application for 1-d-1 (Open-Space) Timber Land Appraisal, published by the Texas Comptroller's Property Tax Assistance Division ^[2]. If your land grows crops, grazes livestock, or otherwise qualifies for regular agricultural use instead of timber production, you'd file the sibling form, 50-129, Application for 1-d-1 (Open-Space) Agricultural Use Appraisal. Some counties also reference Form 50-166 for wildlife management use, which piggybacks on an existing ag or timber valuation rather than replacing it. The practical upshot: you're not applying to a state agency for a tax break. You're applying to your local county appraisal district (CAD), and each of Texas's 254 counties administers this locally, though the forms and the constitutional standard are uniform statewide. Confirm the current form version and any county-specific attachments with your county appraisal district before filing, since CADs occasionally add supplemental questionnaires.

What is the Texas Forest Service (and is it who processes this form)?

The Texas A&M Forest Service, historically called the Texas Forest Service, is the state agency responsible for forest management assistance, wildfire response, and forest health programs in Texas, operating as a member of the Texas A&M University System ^[3]. It is not the office that approves your 1-d-1 timber appraisal. That's your county appraisal district's job. Where the Forest Service does matter: if your county or your specific situation requires a forest management plan (common when land is transitioning into or documenting active timber production, or when you're layering a wildlife management valuation onto timberland), a registered forester's plan carries real weight with the appraisal district. Texas A&M Forest Service foresters and private consulting foresters can help write that plan, and the agency's website lists regional service foresters by county ^[3]. So the short version: Forest Service info and forester relationships build the evidence file. The county appraisal district is the decision-maker. Confirm with your state forestry agency and county assessor which one applies to your specific parcel before you assume either role.

What is 'forest management' in the context of the Texas timber appraisal?

Forest management, in this context, means the ongoing practice of growing, tending, and harvesting timber as a business activity, more than owning wooded acreage. Texas appraisal districts look for evidence that land is actually devoted principally to timber production, at a degree of intensity typical for the area, going back at least five of the preceding seven years for a first-time application ^[1][2]. Evidence that supports a forest management claim usually includes a written management plan (species, planting or regeneration history, thinning schedule, planned harvest rotation), records of any timber sales, receipts for site prep, planting, or herbicide/fire line work, and sometimes a Texas Forest Service or consulting forester's assessment. Appraisal districts vary in how strict they are about paperwork, so a thin file that would sail through in one rural county might get questioned in a county with more scrutiny on open-space applications. If you're at the front end of building that record, it helps to think of it as an ongoing compliance file rather than a one-time form. A parcel with 20 acres of loblolly pine planted five years ago, a signed forestry consultant's management plan, and one documented pulpwood thinning sale looks very different to an appraiser than 20 acres of unmanaged hardwoods with no records at all. For a broader walkthrough of what a workable management plan looks like across states, see forest management and forestry management.

Who qualifies for the Texas 1-d-1 timber appraisal, and what does the application require?

To qualify, land generally has to be currently devoted principally to timber production to the degree of intensity typical for the area, and it has to have been used for timber (or ag, under the related category) for at least five of the past seven years, per the Comptroller's guidance on 1-d-1 appraisal ^[1][2]. There's no statutory minimum acreage written into the Texas Constitution for 1-d-1, but individual appraisal districts often apply local guidelines about what acreage and intensity level counts as legitimate production versus a hobby woodlot, so ask your CAD directly. Form 50-168 asks for the owner's name and mailing address, a legal description of the land, the number of acres devoted to timber, history of use, and whether the land is used for anything else (grazing, hunting leases, residence). You'll typically attach or reference a forest management plan, and some counties want copies of any timber sale contracts or receipts from the past several years. Deadline: applications are generally due by April 30 of the tax year for which you're requesting the appraisal, per Texas Tax Code provisions on special appraisal applications administered by the Comptroller ^[2][4]. Late applications are sometimes accepted with a penalty if filed before the appraisal roll is certified, but don't count on that; file on time. If your land is already enrolled and you haven't changed use, most counties don't require you to refile every year, only when ownership changes or the CAD asks for reconfirmation. If you're gathering documents for the first time, our Current-Use Enrollment & Compliance Kit walks through the standard document set states ask for (ownership proof, use history, management plan checklist) for $149 one-time, built to prep you for the forester engagement your county requires, not to replace it.

What happens if I stop using the land for timber (rollback tax)?

Texas imposes a rollback tax if land loses its 1-d-1 eligibility through a change of use, meaning the owner converts qualified timber or ag land to a non-qualifying use (subdividing for development, for example). The rollback recaptures the tax savings for the prior years, generally the five years preceding the change, plus interest, calculated as the difference between taxes paid under the special appraisal and what would have been paid at market value ^[5]. The interest rate on rollback taxes in Texas is set by statute at 7% per year under Tax Code Section 23.55, applied to each year's deferred tax amount ^[5]. That can add up fast on land with a big market value gap, so before you sell timberland for development or shift it entirely to non-timber use, run the rollback math with your appraisal district first. A sale of the land itself to a buyer who continues timber production usually doesn't trigger rollback, since the qualifying use continues. It's specifically the change of use that pulls the trigger, not the change of owner.

Do I have to pay taxes on timber sold?

Yes. Timber sale proceeds are taxable income at the federal level regardless of whether your land carries a Texas 1-d-1 appraisal. The 1-d-1 program only affects your local property tax bill; it has nothing to do with your federal income tax obligation when you sell standing timber or cut and sell logs ^[6]. How that income gets taxed, and at what rate, depends on how you held the timber and how the sale was structured. That's covered in detail in the sections below, but the short answer is: don't assume a property tax break means a federal tax exemption. They're unrelated systems administered by entirely different agencies (your county CAD versus the IRS).

How are timber sales taxed at the federal level?

Timber sales are typically taxed as capital gains if you've held the timber as an investment or in connection with a trade or business, and the timber qualifies as a capital asset (or Section 631 timber) rather than inventory. IRS Publication 544, Sales and Other Dispositions of Assets, and the Internal Revenue Code Section 631 explain that timber sold under a "pay-as-cut" contract, or timber you've owned long enough to meet holding period requirements, generally qualifies for capital gains treatment rather than ordinary income treatment . That distinction matters a lot. Long-term capital gains rates (0%, 15%, or 20% depending on your income bracket, per current IRS individual tax brackets) are usually far lower than ordinary income tax rates, which is why proper structuring of a timber sale, and proper basis recordkeeping, is worth real money ^[6]. A few common scenarios: - Lump-sum sale of standing timber, held long-term as investment property: typically capital gain, reported using your timber basis to figure gain.

• Pay-as-cut (Section 631(b)) contracts: also generally capital gain treatment, even if you're not otherwise in the timber business, subject to specific holding period and contract requirements .
• If you're a timber dealer, or the timber is essentially inventory in an active timber business, gains may be ordinary income instead. Because the line between capital gain and ordinary income turns on contract structure and your fact pattern, this is genuinely a spot to get a CPA or a forester experienced with Section 631 involved before you sign a sale contract, not after.

How do I report timber sales on my tax return?

For most individual landowners with a qualifying long-term capital gain sale, timber sale proceeds get reported on Form 8949 and carried to Schedule D of Form 1040, the same way you'd report a stock sale, using your adjusted timber basis to calculate gain or loss ^[6]. If you're claiming a Section 631(b) pay-as-cut disposal, or you're in the timber business and depleting a timber account, you may need to document the disposal under Internal Revenue Code Section 631(b) and its accompanying Treasury regulations, which set out how gain or loss on cutting is computed and reported . Publication 535's treatment of timber depletion and the underlying statute lay out who needs to compute a depletion allowance and how gain from an outright sale of timber gets classified. Smaller, casual timber sales by individual landowners are often simpler to report than a full commercial timber operation's depletion accounting, but the general rule is that anyone claiming a timber depletion deduction or reporting a disposal of timber under Section 631 needs records sufficient to support the computation . If you're unsure whether your situation requires that level of detail, that's exactly the kind of question to bring to a CPA who's handled timber sales before, since the penalty for getting it wrong is usually a mismatch between reported basis and what the IRS expects, not a huge one, but an avoidable one. Your basis in the timber, meaning what you paid for the land and standing timber (or its value when inherited/gifted), directly determines your taxable gain. If you don't know your timber basis, that's a separate and important project; see basis of land for how that's typically established and allocated between land and timber value.

How do I avoid capital gains tax on a timber sale (or reduce it)?

You generally can't avoid capital gains tax entirely on a profitable timber sale, but there are a few legitimate ways to reduce or defer it, and a few myths worth killing. First, establish and use your full timber basis. Many landowners never allocated basis between land and timber when they acquired the property, so they end up paying gain on the full sale price instead of sale price minus basis. A retroactive timber basis study, often done with a consulting forester, can meaningfully lower your taxable gain even years after purchase, per Cooperative Extension guidance on timber tax basics . Second, long-term capital gains treatment itself is the main lever: holding timber long enough and structuring the sale (lump-sum or pay-as-cut under Section 631(b)) to qualify for capital gains rather than ordinary income can cut your effective rate substantially, since long-term capital gains top out at 20% federally versus ordinary rates that can run higher ^[6]. Third, reforestation and forest management expenses (site prep, planting, some professional forester fees) may be currently deductible or amortizable up to certain limits under Internal Revenue Code Section 194, which reduces net taxable income from your timber activity in the years you incur them . What doesn't work: there's no special federal exclusion that lets individual landowners sell timber tax-free just because the land carries a state current-use or ag appraisal. A Texas 1-d-1 property tax valuation and your federal capital gains liability are handled by entirely separate rules and different government agencies. Don't let anyone tell you a state ag exemption gets you out of federal timber sale tax; it doesn't.

What's the difference between a Texas ag exemption and a timber exemption?

Both are variants of the same constitutional mechanism, 1-d-1 open-space appraisal, just applied to different land uses. Agricultural use appraisal (Form 50-129) covers crops, livestock grazing, and similar production. Timber land appraisal (Form 50-168) covers land principally devoted to growing and harvesting timber ^[1][2]. The distinction matters because the productivity valuation formulas differ (timber value tables versus agricultural land value schedules used by the Comptroller and local CADs), and because the five-out-of-seven-year use history and degree-of-intensity standards get evaluated against different local benchmarks depending on which category you're in. If your land does both (say, pasture with a managed pine stand), talk to your CAD about how they want it split or classified; some counties allow parcels to carry mixed appraisal categories by acreage, others want one dominant use designation for the whole tract.

How does the Texas timber appraisal compare with plain ag-use appraisal, side by side?

Feature	1-d-1 Timber Appraisal (Form 50-168)	1-d-1 Agricultural Appraisal (Form 50-129)
Governing law	Tex. Const. Art. VIII, Sec. 1-d-1 [1]	Tex. Const. Art. VIII, Sec. 1-d-1 [1]
Filing agency	County appraisal district	County appraisal district
Typical filing deadline	April 30 of tax year [2][4]	April 30 of tax year [2][4]
Use history required	5 of preceding 7 years [1][2]	5 of preceding 7 years [1][2]
Rollback trigger	Change of use away from timber [5]	Change of use away from ag [5]
Rollback interest rate	7% per year, Tax Code 23.55 [5]	7% per year, Tax Code 23.55 [5]
Related federal tax form for sale proceeds	Form 8949/Schedule D, or Sec. 631(b) reporting [6]	N/A (crop/livestock sale rules differ)	The rollback structure and filing mechanics are nearly identical; what differs is the productivity value calculation method behind the scenes, done by your appraisal district using state-published value tables.

Do timber sale proceeds count as income for anything else, like Social Security or Medicare surtax?

Yes, potentially. Capital gain from a timber sale adds to your adjusted gross income, which can affect Medicare Part B/D premium calculations (IRMAA) in later years, and net investment income tax (the 3.8% surtax under Section 1411) can apply if your modified AGI exceeds the statutory thresholds and the gain counts as net investment income ^[6]. This isn't specific to Texas or to timber, it's a general feature of how capital gains interact with other parts of the federal return, and it's worth modeling out with a CPA before a large single-year timber sale pushes you into a higher bracket or surtax territory.

Where the Current-Use Enrollment & Compliance Kit fits in

None of the above forms are complicated to fill out once you know which one applies and what documentation your county wants. The friction is usually in gathering the right proof: ownership history, five-to-seven-year use records, a forester's management plan outline, and a clean file to hand your CAD or your CPA when tax season or an audit letter arrives. The Current-Use Enrollment & Compliance Kit ($149 one-time) is built as a document prep tool for exactly that gap. It's not a substitute for your county appraisal district's decision, and it's not a substitute for a licensed forester's management plan where your county requires one; it's the organizing layer that gets your paperwork ready before you sit down with either of them. For general background on building and maintaining a management plan across states, see timber management and forest mgt.

Frequently asked questions

What is the Texas ag and timber exemption form called?

There are two: Form 50-168 (Application for 1-d-1 Open-Space Timber Land Appraisal) for timber production, and Form 50-129 (Application for 1-d-1 Open-Space Agricultural Use Appraisal) for crops or livestock. Both are Texas Comptroller forms filed with your county appraisal district, not a state agency, and both implement the same constitutional provision, Article VIII, Section 1-d-1.

What is the Texas Forest Service, and does it approve my exemption?

The Texas A&M Forest Service is the state agency handling forest management assistance and wildfire response; it doesn't approve property tax appraisals. Your county appraisal district approves or denies your 1-d-1 timber application. The Forest Service or a private consulting forester may help you build the management plan documentation your CAD wants to see.

What is forest management, and why does it matter for my Texas appraisal?

Forest management means actively growing and tending timber as a production activity, more than owning wooded land. Appraisal districts require evidence of management (a written plan, planting/thinning records, harvest history) plus five of the preceding seven years of qualifying use before granting 1-d-1 timber appraisal under Texas Tax Code and constitutional guidance.

Do I have to pay taxes on timber sold in Texas?

Yes. Federal income tax applies to timber sale proceeds regardless of your property's Texas ag or timber appraisal status. The 1-d-1 program only reduces local property tax; it has no bearing on federal capital gains or ordinary income tax owed when you sell standing timber or logs.

Do you have to pay taxes on timber sales if the land has a current-use valuation?

Yes, the two are unrelated. A state current-use or 1-d-1 appraisal lowers your annual property tax bill based on land productivity value. Federal tax on the actual timber sale transaction is separate, governed by IRS rules on capital gains, basis, and Section 631, and applies regardless of your property tax classification.

How are timber sales taxed?

Most individual landowner timber sales qualify for long-term capital gains treatment (0%, 15%, or 20% federal rates) if held as investment property or sold under a qualifying Section 631(b) pay-as-cut contract, per Internal Revenue Code Section 631 and IRS capital gains guidance. Sales by active timber dealers, or timber treated as inventory, may instead be taxed as ordinary income.

How do I report timber sales on my taxes?

Report gain from a capital-asset timber sale on Form 8949, carried to Schedule D of Form 1040, using your adjusted timber basis. If you're claiming a Section 631(b) disposal or a depletion deduction, you'll need records sufficient to support the computation under Internal Revenue Code Section 631 and related depletion rules.

How do I avoid capital gains tax on a timber sale?

You can't eliminate it entirely on a profitable sale, but you can reduce it: establish your full timber basis (often via a forester-assisted basis study), structure the sale to qualify for long-term capital gains or Section 631(b) treatment, and deduct or amortize eligible reforestation expenses under Internal Revenue Code Section 194 in the year incurred.

What's the deadline to file the Texas timber appraisal application?

Generally April 30 of the tax year you want the special appraisal to apply, per Texas Tax Code provisions the Comptroller administers. Some counties accept late applications with a penalty before the appraisal roll is certified, but don't rely on that; confirm exact deadlines with your county appraisal district.

What happens if I stop timber production on 1-d-1 land (rollback tax)?

Texas imposes a rollback tax when qualifying timberland converts to a non-qualifying use, recapturing the tax difference for the preceding years plus 7% annual interest under Tax Code Section 23.55. Selling the land to someone who continues timber production generally doesn't trigger it; changing the use does.

Is there a minimum acreage for the Texas timber appraisal?

The Texas Constitution's 1-d-1 provision doesn't set a specific statewide minimum acreage for timber appraisal, but individual county appraisal districts often apply local standards for what counts as production at a typical degree of intensity for the area. Ask your specific county appraisal district what acreage and activity level they expect to see.

Does a Texas ag or timber exemption reduce my federal income tax too?

No. The 1-d-1 appraisal only affects locally assessed property tax administered by your county appraisal district. It has zero effect on federal income tax, capital gains tax, or how timber sale proceeds get reported to the IRS, which are governed by entirely separate federal statutes and forms.

Sources

1. Texas Comptroller of Public Accounts, Property Tax Forms: Form 50-168 (timber) and Form 50-129 (agricultural) 1-d-1 application forms and filing guidance
2. Texas Comptroller, Texas Property Tax Basics: Application deadlines and administration of special appraisal categories by county appraisal districts
3. Texas Tax Code Section 23.55, Change of Use of Land: Rollback tax calculation and 7% annual interest rate for change of use of 1-d-1 land
4. Internal Revenue Service, Topic no. 409, Capital Gains and Losses: Federal capital gains tax rates and treatment applicable to timber sale proceeds
5. Internal Revenue Code Section 631, Gain or Loss in the Case of Timber, Coal, or Domestic Iron Ore: Timber basis, Section 631(b) pay-as-cut treatment, and reforestation expense deduction guidance
6. Internal Revenue Code Section 194, Amortization of Reforestation Expenditures: Rules governing depletion computation and disposal of timber under Section 631 reporting requirements