Documenting inherited timberland value helps heirs support their tax basis. Prompt documentation makes the valuation easier to support. Here's what every heir, executor, and CPA working on Southern timberland should understand.
Nothing here is legal or tax advice. Talk to a CPA and attorney about your specific situation. What follows explains the forester's role in documenting timber value.
What "basis" means
Cost basis is what the tax code says you "paid" for an asset. When you later sell, capital gains are calculated as sale price minus basis. A low basis means a large gain — and a large tax bill. A high basis means a small gain, or none at all.
For timberland bought decades ago, the original basis is usually tiny relative to today's value. Land and standing timber values should be appraised separately rather than inferred from broad per-acre estimates. Without a step-up, the family would owe capital gains tax on essentially all of that appreciation.
What "stepped-up basis" does
Under current federal tax law, when an asset passes through an estate at death, its basis is generally stepped up to the asset's fair market value on the date of death (or the alternate valuation date, if elected). That new, higher basis becomes the heir's starting point for future gain or loss calculations.
For timberland, this matters twice. The land gets a step-up. The standing timber gets a separately documented step-up. Both are real assets, both appreciate independently, and both should be valued at the date of death.
Why a separate timber valuation matters
Without a supported date-of-death timber valuation, the family may have difficulty substantiating depletion; ask the CPA whether a retrospective appraisal can establish basis and how selling expenses affect taxable gain. An appraisal supports basis documentation but does not necessarily eliminate taxable gain.
A defensible date-of-death timber valuation requires a measured timber cruise and a market-based stumpage appraisal applied as of the death date.
What the appraisal package should contain
- Plot data and cruise design from a measured cruise
- Per-acre and total volumes by species and product class
- Stumpage values applied to each product class, sourced to the prevailing regional market on the date of death
- Tract-level adjustments — access, haul, mill mix, harvest cost
- Land value sourced to comparable timberland sales in the same region and timeframe
- Total value separated into land and standing timber components
- Appraiser credentials, methodology, and signature
This package is what the family's CPA uses to file Form 706 (if the estate is large enough) or to support basis on Schedule D when the timber is later sold.
Special situations
Joint ownership. The step-up rules differ between joint tenancy with right of survivorship, tenancy in common, and community property. Mississippi is not a community property state; Alabama is not a community property state. Joint property between spouses in these states typically receives a step-up on only the deceased spouse's half. A CPA needs to confirm the form of ownership before the appraisal is filed.
Trusts. Property in a revocable living trust generally receives full step-up at the grantor's death. Property in an irrevocable trust may not — the answer depends on the trust's terms and how it was structured for estate tax purposes.
Multiple deaths in succession. Each death is its own step-up event. A tract that passes from grandmother to mother to child within five years may have had two step-ups in that span, each requiring its own documentation.
Why timing is unforgiving
A retrospective appraisal needs evidence supporting the timber condition and market value as of the applicable valuation date; have the CPA review its adequacy. Stumpage markets move month to month and year to year. Reconstructing what a tract was worth on a date five years ago, from records that no longer exist, is much harder than valuing it within months of the event.
What stepped-up basis does not do
- It does not eliminate income tax on subsequent timber sales — it only resets the starting point.
- It does not change property tax assessments at the state or county level.
- It does not affect estate tax (which is a separate calculation) — only future income tax on later sales.
- It does not survive gifts. Timberland gifted during the owner's lifetime generally keeps the original (low) basis instead of stepping up.
The takeaway
Stepped-up basis is the rare provision in the tax code that quietly favors patient, long-holding families. Capturing it requires three things in the months after death: a measured timber cruise, a defensible date-of-death valuation that separates land and timber, and a CPA familiar with timber taxation. Keep the valuation and supporting records for future tax reporting.
If you're an executor or new heir to timberland in Mississippi or Alabama, talk to a registered forester early. Early documentation can make a date-of-death appraisal easier to support.