StructuredSales.org
StructuredSales.org
An individual selling Missouri farmland, a rental, or a business interest in 2026 subtracts the capital gain. State income tax on that gain is zero whether you close for cash or take payments for ten years. The tax that is still large is federal: long-term gain at 0%, 15%, or 20%, and the 3.8% net investment income tax. That is the honest reason a structured installment sale can still belong in a Missouri file.
The subtraction has edges. Ordinary income is still taxed, at a top rate of 4.7% in the 2026 withholding formula. Interest and depreciation recapture are ordinary. A C corporation does not yet get the subtraction. Kansas City and St. Louis tax wages and business profits. Holding until death can erase the federal gain through a new basis, which the subtraction never does, because it only helps a sale during life.
House Bills 594 and 508 added a modification to RSMo § 143.121. For tax years beginning on or after January 1, 2025, an individual subject to section 143.011 subtracts 100% of federally reported capital gain, short-term and long-term, including stocks, real estate, and cryptocurrency. The Department of Revenue says the subtraction is claimed on Form MO-A with the MO-1040.
Gain reported under IRC §453 is subtracted in the year Form 6252 recognizes it. Spreading the sale does not forfeit the subtraction and does not create an extra Missouri benefit. The state tax on the gain is zero either way.
Ordinary income is still taxed. The 2026 withholding formula reaches 4.7% above $9,436 of taxable income. Wages, pensions, rent, farm operations, interest, §1245 recapture forced into the year of sale by §453(i), and §751 ordinary income stay on that scale. Interest on installment payments is ordinary. Missouri taxes it. The table leaves that interest out.
The corporate subtraction is not in effect. The Department says it begins only after the top individual rate falls to 4.5% or lower, and the top rate is still 4.7%. A C corporation should not assume the subtraction. Estates and trusts should not borrow the individual rule without a preparer reading the fiduciary changes that took effect for 2026.
Revenue Procedure 2025-32 sets the 2026 joint long-term thresholds at $98,900 for the 0% band and $613,700 for the top of the 15% band, then 20%. The joint standard deduction is $32,200. The 3.8% net investment income tax applies to the lesser of net investment income or MAGI over $250,000. Those NIIT thresholds are not indexed. A $3 million gain in one year is mostly a 20% gain and mostly inside the NIIT. The same gain at $300,000 a year, on top of a modest pension, can stay in the 15% band. Missouri's subtraction does not change that federal math.
A structured installment sale assigns the deferred price to an assignment company. You do not take receipt of those funds. An annuity from a highly rated life insurer funds the schedule. Each payment is basis, gain, and ordinary interest. Missouri subtracts the gain and taxes the interest. See the explainer, the tax-treatment guide, and the risks and safety page. Recapture cannot be deferred. Section 453A charges interest on deferred federal tax when installment obligations exceed $5 million. Related buyers raise §453(e) and §453(g). Near that line, use the §453A calculator.
Most of Missouri has no local income tax. Kansas City and St. Louis are the exceptions, each at 1% of earnings and of net profits from business in the city. Kansas City's profits-return instructions list capital gains as a common example of income that is not earned, and they also say the nature of the business can change the answer. A New Madrid landowner who does not live or operate in either city is outside both taxes. A city business sale needs the city return beside the MO-1040.
Irrigated cotton, rice, corn, and soybean ground in the Bootheel can produce a seven-figure gain on a few hundred acres when basis is an older inheritance. The farmland guide still controls allocation: land is the gain Missouri subtracts, and equipment, wells, and grain facilities are recapture taxed in the year of sale. See inherited farmland before equating gain with price. Illinois still taxes the gain, Iowa may exclude it for a retired farmer, and Kentucky taxes it at 3.5%. Border guides cover Arkansas, Kansas, Nebraska, and Oklahoma. A Missouri individual does not need an installment sale to manage those state bills. A 1031 exchange can still defer the federal gain.
Ozark timber raises federal character questions, including §631, before it raises a Missouri question. The subtraction applies only to what the federal return already calls capital gain. City companies follow the business-sale allocation: goodwill may be subtracted, while inventory and depreciated equipment may be ordinary and taxed at up to 4.7%. On a payment stream, the gain portion is state-tax-free and the interest is not. A §1014 basis step-up can eliminate federal gain an installment sale only spreads. Selling versus holding is an estate conversation. The subtraction is not a reason to sell.
A couple sells 600 irrigated acres in New Madrid County for $3,600,000. They inherited the ground in 2011. Basis is $600,000, so long-term gain is $3,000,000. Equipment is sold at basis. They live outside Kansas City and St. Louis, file jointly, and qualify for the subtraction. Other income is $65,000. Ten equal principal payments recognize $300,000 of gain a year, all subtracted on the Missouri return.
Thresholds are Revenue Procedure 2025-32. NIIT is 3.8% above $250,000 of joint MAGI. Missouri tax on the capital gain is zero in both columns. The table omits interest the deferred payments would earn. That interest is ordinary, taxed federally as such and by Missouri at up to 4.7%. It also omits the time value of money. Figures are rounded estimates of the tax on the gain.
| Estimate | Lump sum | Ten-year total |
|---|---|---|
| Long-term gain recognized | $3,000,000 | $3,000,000 |
| Federal tax at 0% / 15% / 20% | $561,040 | $350,850 |
| Federal NIIT at 3.8% | $106,970 | $43,700 |
| Missouri tax on the capital gain | $0 | $0 |
| Estimated total on the gain | $668,010 | $394,550 |
The illustrative difference is about $273,460, and every dollar is federal. The lump sum taxes $2,419,100 at 20% and applies the NIIT to $2,815,000. Each $300,000 installment sits on $32,800 of ordinary taxable income, so about $66,100 is at 0% and the rest at 15%, under the $613,700 threshold. NIIT each year hits $115,000, not the whole $300,000. Missouri's line stays at zero. A Missouri-savings column would misstate current law for an individual. Recapture and the interest on the schedule are ordinary, and Missouri taxes that interest at up to 4.7%. A basis step-up at death can remove the federal gain without a sale. The calculator sketches brackets. It does not decide whether to sell.
For an individual, no. Section 143.121 lets an individual subject to section 143.011 subtract 100% of income reported as capital gain for federal purposes, for tax years beginning on or after January 1, 2025. The subtraction covers short-term and long-term gain. Other income is still taxed. The Department of Revenue's 2026 withholding formula tops out at 4.7%.
Not on the same terms. The Department says the corporate subtraction begins only after the top individual rate falls to 4.5% or lower. The top rate is still 4.7%. The individual FAQ limits the subtraction to an individual subject to section 143.011. A sale inside a C corporation, estate, or trust should not be assumed exempt.
Because federal tax is not zero. A large long-term gain in one year is taxed at up to 20%, plus the 3.8% net investment income tax. Spreading recognition under IRC §453 can keep more of the gain in the 15% bracket and shrink the NIIT. The interest portion of each payment is ordinary income, and Missouri taxes that interest at up to 4.7%. Spreading the capital gain itself does not reduce Missouri tax, because that tax is already zero.
Where those cities impose the earnings tax, it is 1% of salaries, wages, and net profits of a business in the city. Kansas City's profits-return instructions list capital gains as a common example of income that is not earned, and they also say the nature of the business can change the answer. A farmland seller who does not live or operate in either city is outside both taxes. A city business sale should be reviewed on its own facts.
Depreciation recapture is ordinary income in the year of sale under §453(i) and §1245, and Missouri taxes ordinary income. Inventory and §751 hot assets are ordinary. Related-party rules in §453(e) and §453(g) can accelerate or deny installment treatment. Obligations above $5 million can incur the §453A interest charge on the deferred federal tax. None of those federal rules is waived by the Missouri subtraction.
Last reviewed: October 22, 2026.
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