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Title Tag: Farm Estate Planning: IRC 2032A Special Use Valuation and 6166 Installment Payments (2026) - ProbatePedia
Meta Description: A 500-acre corn farm at $13,000/acre = $6.5M. Illinois estate tax on $2.5M above the $4M exemption can reach $350,000 — forcing a sale of land farmed for generations. IRC 2032A and 6166 are the two federal tools specifically designed to prevent this.
Farm Estate Planning: IRC §2032A Special Use Valuation and §6166 Installment Payments (2026)
Last Updated: March 2026 • IRC §2032A, §6166, §1014• Special Assets Series — Article 5 of 6
American farmland has appreciated 300-500% in many corn belt states since 2000. A 500-acre Iowa farm at $11,835/acre has a total FMV of nearly $6M. The farm may have been in the family for three generations, generate $200,000/year in cash rent, and represent virtually the entire estate. When the farmer dies, the estate faces potential Illinois or Minnesota estate tax that could demand $300,000-$500,000 within 9 months — cash the family simply does not have without selling land. Congress created two specific federal tools for exactly this situation: IRC §2032A special use valuation (value the land at its agricultural use value, not its speculative market value) and IRC §6166 installment payment (spread the estate tax over 14 years). Used together, these tools can eliminate or make manageable the estate tax burden on family farms.
State Estate Tax Is the More Common Threat for Farm Estates: Most family farms are under the $15M federal estate tax threshold, but many exceed the state thresholds — Illinois ($4M), Minnesota ($3M), Washington ($2.193M), Massachusetts ($2M), Oregon ($1M). A 400-acre Illinois farm at $10,500/acre = $4.2M. That farm alone exceeds the IL exemption by $200,000, generating approximately $100,000+ in Illinois estate tax. Add farm equipment and personal property, and the IL estate tax bill may approach $250,000-$350,000. State estate tax planning, not federal, is typically the primary farm estate concern.
IRC §2032A — Special Use Valuation
IRC §2032A allows qualified farm real property to be valued at its agricultural use value — based on its income-producing capacity as farmland — rather than its FMV based on development potential or comparable non-farm land sales. The maximum reduction in 2026 is $1,390,000 (inflation-adjusted — verify current IRS published amount).
| ContentWhat Is RequiredContentPlanning Note** | | --- | --- | --- | | 50% Adjusted Gross Estate test | Qualified real property (farmland) must be at least 50% of the adjusted gross estate (gross estate minus applicable deductions) | Concentrating farm value in estate and reducing non-farm liquid assets through lifetime gifting can help meet this threshold | | 25% real property sub-test | The qualified real property alone (farmland only, not equipment or inventory) must be at least 25% of AGE | Same planning: ensure farmland value is a dominant portion of the estate | | 5 of 8 year qualified use | Property must have been used for farming for 5 of the 8 years immediately before death; decedent OR a family member must have materially participated in the farm operation | Material participation = regular and continuous involvement in farm management; passive cash rent landlords may NOT qualify; crop share arrangements more likely to satisfy material participation | | Passes to qualified heir | Property must pass to a qualified heir: spouse, ancestor, descendant, sibling, niece/nephew, their lineal descendants | Cannot leave §2032A property to non-family and still claim the election on that property | | Maximum reduction — 2026 | $1,390,000 maximum valuation reduction (indexed annually — verify IRS Rev. Proc. for exact 2026 amount) | Reduces taxable estate by up to $1.39M directly; IL estate tax saving at 16% = up to $222,400 on this amount alone |
§2032A Valuation Formula — Capitalization of Net Income
The preferred §2032A valuation method for farmland is capitalization of net cash rental income under IRC §2032A(e)(7):
| ContentHow to CalculateContentData Source** | | --- | --- | --- | | Average annual gross cash rental | Average of the gross cash rental rates for comparable farmland in the same area — used for the 5 most recent years before death | FSA county average rent data; local comparable lease data; agricultural appraisers | | Minus: average annual state and local taxes | Average state and local real property taxes on comparable farmland for the same 5-year period | County tax records; state Department of Revenue | | Equals: net rental | Net figure used as the income numerator in the capitalization formula | Calculate from above two inputs | | Divided by: average Federal Land Bank rate | Average annual effective interest rate on new Federal Land Bank (Farm Credit System) loans for agricultural real estate — 5-year average preceding death | Farm Credit System public reports; ⚠ verify current 5-year average for decedents dying in 2025-2026 | | Result: §2032A special use value per acre | The per-acre agricultural use value; total special use value = per acre value x total qualifying acres | Apply maximum reduction cap: if FMV - special use value exceeds $1,390,000, special use value = FMV - $1,390,000 |
§2032A Calculation Example — 480-Acre Iowa Corn Farm:
Farm: 480 acres in central Iowa. FMV: $13,500/acre = $6,480,000 total. Adjusted gross estate: $8,000,000. 50% test: $6,480,000 / $8,000,000 = 81% — passes. 25% test: passes. 5/8 year use: family has farmed under crop share arrangement — passes material participation. Passes to farming child as qualified heir. §2032A calculation: comparable cash rent $210/acre (5-year avg); state/local taxes $19/acre; net $191/acre. Federal Land Bank 5-year average rate: assume 5.4% (verify current). Special use value: $191 / 0.054 = $3,537/acre. Total special use value: 480 x $3,537 = $1,698,000. FMV was $6,480,000. Reduction = $4,782,000. But maximum reduction is $1,390,000. Elected special use value = $6,480,000 - $1,390,000 = $5,090,000. New AGE = $8,000,000 - $1,390,000 = $6,610,000. Iowa: no estate tax after inheritance tax phase-out. Federal: well under $15M — $0 federal estate tax.
§2032A Recapture — The 10-Year Commitment
| ContentRecapture ConsequenceContentException** | | --- | --- | --- | | Qualified heir sells farmland to non-family within 10 years | Full recapture tax: estate tax saving from §2032A election must be repaid with interest | Transfer to another qualified heir (family member) does not trigger recapture | | Qualified heir ceases farming use within 10 years | Recapture tax owed; IRS imposes additional interest | Cash rent lease to another family member farmer: generally does not trigger recapture; lease to non-family: generally triggers recapture — verify specific facts | | Qualified heir dies within 10 years | NO recapture — heir's death is not a triggering event | Property passes to heir's own heirs; they must continue qualified use for remainder of the original 10-year period |
§2032A Is a 10-Year Commitment to Farm the Land:
Electing §2032A means the inheriting heir commits to keeping the land in agricultural use for 10 years after the decedent's death. If the plan is to eventually sell the farm — or convert it to non-farming use — within that window, the recapture tax eliminates the §2032A benefit. The tool is most powerful when the farming heir genuinely intends to continue farming. Combining §2032A with a conservation easement locks in agricultural use permanently and provides additional estate tax reduction.
IRC §6166 — Installment Payment of Estate Tax for Farm Estates
| ContentTermsContentFarm Application** | | --- | --- | --- | | Eligibility: farm must be 35%+ of AGE | Qualifying farm or closely-held business interest must exceed 35% of adjusted gross estate | Most farm-dominant estates qualify; if farm is 35%+ of estate, both §2032A and §6166 can apply simultaneously | | Years 1-5: interest only | No principal; 2% interest rate on first eligible portion (inflation-adjusted threshold — verify 2026 amount); market AFR rate on remainder | Farm can build cash reserves during first 5 years; interest-only payments are manageable from farm income | | Years 6-14: annual installments | Principal + interest paid in annual installments over 9 years; like a 9-year mortgage on the estate tax | Total of 14-year repayment period from original estate tax due date; structured to match farm cash flow rhythm | | Acceleration risk: 50% transfer | If qualifying farm interest is sold, disposed of, or transferred beyond 50% during installment period, all remaining deferred estate tax immediately due | Heir cannot sell the farm during §6166 period without triggering full immediate payment; plan accordingly |
Using §2032A and §6166 Together — State Tax Impact
| ContentEstate Tax Without PlanningContentAfter §2032A ElectionContentAfter §2032A + §6166ContentAnnual §6166 Payment** | | --- | --- | --- | --- | --- | | 600-acre IL farm @ $10,500/acre + $2M other | $8.3M estate; IL tax on $4.3M excess: ~$576,000 due within 9 months | §2032A reduces farm by $1.39M; taxable estate: ~$6.91M; IL tax: ~$435,000 | $435,000 IL estate tax paid in installments over 14 years (if farm 35%+ of estate for §6166) | ~$32,000/year from year 6; interest only ~$8,700/year for first 5 years | | 400-acre MN farm @ $11,000/acre + $1M other | $5.4M estate; MN tax on $2.4M excess: ~$340,000 | §2032A reduces by $1.39M; taxable: ~$4.01M; MN tax ~$130,000 plus MN farm deduction may apply | §6166 if farm is 35%+ of estate | ~$12,000-15,000/year — manageable from farm income |
Farm Estate Planning Checklist — §2032A and §6166
- Commission both FMV appraisal and §2032A special use value appraisal from an agricultural appraiser
- Confirm §2032A eligibility: 50% AGE test, 25% real property test, 5-of-8-year qualified use, material participation
- Review crop rent/cash rent arrangements — passive cash rent may not qualify for material participation; consider switching to crop share arrangement
- Confirm §6166 eligibility: farm must be 35%+ of adjusted gross estate
- Identify state estate tax exposure: IL ($4M), MN ($3M), WA ($2.193M), OR ($1M) — state is often primary concern
- Explore MN Qualified Farm Property Deduction (Minn. Stat. §291.03) if in Minnesota
- Update will and revocable trust to instruct executor on §2032A election and §6166 installment agreement
- Consider conservation easement to further reduce land value and provide income tax deduction (see SA-6)
- Model combined effect of §2032A + conservation easement + §6166 on total estate tax exposure
Verified Data — March 2026
• §2032A maximum reduction 2026: $1,390,000 (indexed — verify IRS Rev. Proc. current year)
• §2032A capitalization formula: IRC §2032A(e)(7) — confirmed
• §2032A eligibility: 50% AGE + 25% real property + 5/8 qualified use + material participation — confirmed
• §2032A recapture: 10 years from decedent's death — confirmed
• §6166 eligibility: 35% of AGE — confirmed; 2% rate threshold ⚠ verify 2026
• Federal estate tax exemption 2026: $15,000,000 — confirmed
• IL estate tax exemption: $4,000,000 — confirmed
• MN qualified farm property deduction: Minn. Stat. §291.03 — ⚠ verify current eligibility and amount
• IA inheritance tax: phasing out — ⚠ verify current status
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SA-3 -> Family Business Succession Planning: 5 Structures That Work
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SA-5 -> Farm Estate Planning: IRC 2032A Special Use Valuation and 6166 Installment Payments
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probatepedia.com | /estate-planning/farm-estate-planning/ | SA-5 of 6 | v1.0 March 2026