StructuredSales.org
StructuredSales.org
New Mexico sellers share a rumor that the state still shelters a large share of any long-term gain. The rumor describes an older deduction. For taxable years beginning on or after January 1, 2025, NMSA 1978 § 7-2-34 was narrowed. What remains is a choice between a small deduction for net capital gain generally and a larger deduction that applies only to gain from the sale of a business, only up to a dollar cap, and only for the taxable year in which you claim it. Installment reporting can change the size of that deduction. On a less generous reading of the same sentence, it can throw the deduction away.
The sellers are specific: an oilfield shop in Hobbs or Carlsbad, a Los Alamos or Rio Rancho contractor, a chile or pecan operation around Las Cruces, an Albuquerque practice whose value is personal goodwill. A Catron County ranch or a San Juan Basin mineral interest may be in a different box. The mineral-rights guide covers the federal character. Whether that sale is a "sale of a business" under § 7-2-34 is open. The statute does not define the phrase.
What is left after the deduction is taxed under § 7-2-7. For years beginning on or after January 1, 2025, the schedule still in force for 2026, a joint return, head of household, or surviving spouse pays 1.5% to $8,000, 3.2% to $25,000, 4.3% to $50,000, 4.7% to $100,000, 4.9% to $315,000, and 5.9% above $315,000. Tax at $315,000 is $14,624 before the 5.9% starts. Single filers reach 5.9% above $210,000. There is no preferential capital-gains rate.
New Mexico taxable income begins with federal adjusted gross income. Installment gain on Form 6252 is in the starting point in the year the federal return includes it. Depreciation recapture is in the starting point in the year of sale. It is not net capital gain, so § 7-2-34 does not shelter it and §453 does not spread it. Gross receipts tax is separate, and an asset sale can raise questions a stock sale does not. This page does not compute it.
The taxpayer deducts the greater of two amounts, not the sum. The first is net capital gain for the taxable year, but not more than $2,500. The second is 40% of up to $1 million of net capital gain from the sale of a business allocated or apportioned to New Mexico under § 7-2-11 for that same year. Forty percent of $1 million is $400,000, so the business-sale path cannot deduct more than $400,000 in a year. A qualifying sale of any size uses the $400,000 figure. A sale that does not qualify uses $2,500 and stops.
Net capital gain means IRC § 1222(11): net long-term capital gain over net short-term capital loss. The 2025 PIT-ADJ instructions repeat that short-term gains do not qualify. Married people who file separate returns in a year when they could have filed jointly each claim half the deduction a joint return would have allowed. A business that operates in more than one state does not get the 40% path on gain that belongs somewhere else.
The statute does not define "sale of a business." An asset sale of a New Mexico operating company is the clearest fit. Portfolio stock and investment real estate should not be assumed to qualify. Closely held stock is the middle case, and some of those sales are really sales of the business while others are sales of an intangible. The 2025 PIT-ADJ instructions restate the statute and add no definition or example. The 40% figure is a question for an adviser with the purchase agreement.
The $1 million ceiling is a limit on the gain for the taxable year. A lump-sum sale with $3 million of qualifying New Mexico gain gets one $400,000 deduction. If gain recognized under the installment method in a later year is still "net capital gain income from the sale of a business" for that later year, each year has its own ceiling. Eight years of $375,000 would each support a 40% deduction, $150,000 a year, $1.2 million over the schedule, against a single $400,000 deduction if everything were recognized at closing.
That reading follows the grammar. It is not a ruling, and the PIT-ADJ instructions never mention installment sales. If only the closing year is "the sale," later years may be stuck at $2,500, New Mexico tax can rise, and federal tax can still fall. Filing the optimistic return is taking a position. This page shows both.
A married couple in Lea County sells an oilfield service company operated entirely in New Mexico. The long-term gain allocated to New Mexico is $3 million. The sales price is under the $5 million face-amount line that brings in the federal §453A interest charge, so that charge is left out. Recapture is paid in the year of sale and is not in the gain. Other New Mexico taxable income is $100,000. They compare recognizing the gain at once with recognizing $375,000 a year for eight years.
Assumptions. Joint return. The gain is net long-term capital gain from a New Mexico business sale. Federal taxable income before the gain is $150,000, above the 2026 joint 0% long-term threshold of $98,900. Other MAGI is already over $250,000, so the 3.8% federal tax applies to the whole gain in every column. Installment years recognize equal slices and ignore interest. The middle column assumes each year's slice qualifies for the 40% deduction. The right-hand column assumes each year gets only $2,500. Neither column is a Department position. Estimates only.
| Lump sum | 8 years, 40% each year | 8 years, $2,500 each year | |
|---|---|---|---|
| Gain recognized | $3,000,000 | $3,000,000 | $3,000,000 |
| Total § 7-2-34 deduction | $400,000 | $1,200,000 | $20,000 |
| Estimated New Mexico tax on the gain | $151,250 | $89,000 | $158,620 |
| Estimated federal long-term capital gains tax | $576,815 | $450,000 | $450,000 |
| Estimated net investment income tax | $114,000 | $114,000 | $114,000 |
| Combined estimate | $842,065 | $653,000 | $722,620 |
The lump sum starts with a $400,000 deduction. Included gain is $2.6 million. Stacked on $100,000 of other taxable income, taxable income is $2.7 million. Tax through $315,000 is $14,624, and the rest is at 5.9%. Subtract the tax on the other $100,000, and the tax on the sale is $151,250.
If each $375,000 inclusion qualifies, the deduction is 40%, or $150,000, and $225,000 a year is included. Eight years produce a $1.2 million deduction. Each year's taxable income is $325,000. Most of the included gain is taxed at 4.9%, between $100,000 and $315,000, and only $10,000 a year is at 5.9%. Eight years at about $11,125 is $89,000, roughly $62,000 less New Mexico tax than the lump sum. That gap exists only on the yearly reading.
If each year is limited to a $2,500 deduction, the total deduction is $20,000 and New Mexico tax on the gain is about $158,620, higher than the lump sum. Federal long-term tax still falls from $576,815 to $450,000: the lump-sum year taxes $463,700 at 15% and the rest at 20%, while each installment year adds $375,000 to $150,000 and stays under the $613,700 joint threshold. The 3.8% tax is $114,000 in every column. Even that pessimistic reading leaves the combined estimate about $119,000 lower, because the federal change exceeds the New Mexico increase. The federal brackets do not depend on § 7-2-34. The New Mexico deduction might.
A ranch or mineral sale that is not a sale of a business never enters the middle column. It gets $2,500. Spreading it is a federal decision, not a deduction strategy. Compare a 1031 on the installment-versus-1031 page with an adviser who can say whether the property is a business at all. The business-sale overview covers goodwill versus equipment. A related resale within two years can accelerate gain under §453(e) and collapse a multi-year deduction under one ceiling. Have a New Mexico CPA read the statute against the draft before the schedule is an exhibit.
For years beginning on or after January 1, 2025, section 7-2-34 allows the greater of $2,500 of net capital gain or 40% of up to $1 million of business-sale gain allocated to New Mexico. The larger path tops out at $400,000. Net capital gain is long-term gain over short-term loss. Spouses who file separately, and could have filed jointly, each take half.
Do not assume it does. The 40% path is limited to gain from the sale of a business allocated or apportioned to New Mexico. The statute does not define that phrase. Portfolio stock and investment real estate are the patterns most likely stuck at $2,500. An asset sale of an operating business is the clearest fit. Closely held stock belongs with a New Mexico adviser before you count on 40%.
It might, and it might do the opposite. The deduction is computed for the taxable year. If a later installment inclusion still counts as gain from the sale of a business, each year has its own $1 million ceiling. If a later year is limited to $2,500, installment reporting can forfeit the $400,000 deduction and New Mexico tax can rise even while federal tax falls. This page shows both readings. It is not a ruling.
For taxable years beginning on or after January 1, 2025, the top rate is 5.9%. On a joint return it starts above $315,000 of taxable income. Single filers reach 5.9% above $210,000. Lower brackets run 1.5%, 3.2%, 4.3%, 4.7%, and 4.9%. The deduction under section 7-2-34 comes off before those rates apply. There is no separate capital-gains rate.
New Mexico individual income tax starts from federal adjusted gross income. Gain reported on the federal installment method is in the New Mexico starting point in the year it is in federal AGI. The section 7-2-34 deduction is then computed on that year's net capital gain. Electing out of installment treatment federally pulls the gain into one New Mexico year as well. Depreciation recapture, which is ordinary income in the year of sale, is not net capital gain and is not spread.
Last reviewed: October 22, 2026.
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