Missouri individuals can subtract 100% of federally reported capital gains for tax year 2025, and the state's own release names cryptocurrency among the qualifying assets. Both holding periods count.

The mechanism is a subtraction from Missouri adjusted gross income, so the state return starts from your federal number and then removes the gain on a single line.

For how other states build their rules, start at crypto taxes by state.

What is different in Missouri

Missouri's difference is a state adjustment that takes federally reported capital gains back out of income.

The Missouri Department of Revenue's 2025 Tax Legislative Changes summary describes a capital gains income tax subtraction from Missouri adjusted gross income, sitting in Section 143.121 RSMo as enacted by HB 594 and HB 508.

The summary distinguishes two dates. The individual subtraction applies effective January 1, 2025, so it reaches the 2025 calendar year. The law itself became effective August 28, 2025.

For a hypothetical February sale, the August effective date does not by itself exclude the federally reported gain.

Scope is individual income tax. Corporations are not eligible for 2025; by the summary's terms they qualify from January 1 of the tax year after the top individual rate falls to 4.5%. The checklist under the figures table below covers the six things worth settling before you open the state form.

Rates, thresholds and deductions

Two percentages travel together in coverage of this rule, and they are different kinds of number. The 100% is how much of the federally reported capital gain leaves Missouri adjusted gross income for tax year 2025 (current figure at Missouri Department of Revenue). The 4.7% is the top individual income tax rate for 2025, which applies to what stays taxable.

Nothing charges 4.7% against the portion you subtract.

Item Figure or rule Tax year Authority document Evidence status
Individual capital gains subtraction 100% of federally reported capital gains; no dollar cap or threshold stated 2025 2025 Tax Legislative Changes DOR publication, retrieved 2026-09-29
Scope and source line Short-term and long-term gains from federal Form 1040 line 7a; a negative line 7a is entered as $0 on MO-A Part 1 line 18 2025 2025 MO-1040 Instructions DOR publication, retrieved 2026-09-29
Top individual income tax rate 4.7%, applied to taxable income, not to the subtracted gain 2025 2025 individual income tax year changes DOR publication, retrieved 2026-09-29
Corporate condition No corporate deduction for 2025; corporations qualify from January 1 of the tax year after the top individual rate falls to 4.5% 2025 August 26, 2025 news release DOR publication, retrieved 2026-09-29

Does my state change anything? Missouri

  • Domicile on each sale date: line up your address history against every disposal; general method at crypto taxes by state.
  • Personal income tax layer: yes, Missouri taxes individual income.
  • Separate excise or surtax on the sale: check the Department's tax-type list for anything beyond individual income tax rather than assuming nothing else applies.
  • Capital-gain subtraction and its condition: 100% for individuals in tax year 2025; corporate eligibility waits on the 4.5% rate trigger.
  • Form and line: MO-1040 with MO-A Part 1 line 18.
  • Open questions for you: part-year allocation, and reward receipts.

How a crypto sale reaches the Missouri return

Start with the reported federal figure.

MO-1040 starts from total federal adjusted gross income, so the holding-period split that sets your federal short- and long-term rates has already done its work by the time the number crosses the state line.

The 2025 MO-1040 instructions identify the adjustment's source: Form 1040 or 1040-SR line 7a, carried to MO-A Individual Income Tax Adjustments, Part 1 line 18, Capital Gain.

A loss year has an instruction rather than an intuition. Where federal line 7a is negative, the 2025 MO-1040 instructions direct you to enter $0 on MO-A Part 1 line 18.

The DOR's year-changes page gives April 15, 2026 as the 2025 return deadline and October 15, 2026 as the extension date. Under the instructions, a federal filing extension also extends Missouri filing; if Missouri tax is owed, submit MO-60 with payment by April 15. An extension changes the filing deadline, not the payment deadline.

The 2025 MO-1040 instructions give conditional filing thresholds: a resident with under $1,200 of Missouri adjusted gross income, or a nonresident with under $600 of Missouri income, may not need to file, subject to the Department's other filing conditions.

Read the filing-requirements section before deciding whether a return is required.

Trace the federal gain into MO-A

  1. Federal Form 1040 or 1040-SR, line 7a: identify the reported capital gain included in federal adjusted gross income.
  2. Supporting capital-gain records: retain the records behind that amount; the instructions require the federal return and applicable schedules with the Missouri return.
  3. Federal line 7a → MO-A Part 1 line 18, Capital Gain: enter the amount, or $0 where line 7a is negative.
  4. MO-A → MO-1040: carry the subtraction through as a state adjustment, following the 2025 instructions. A move requires the residency forms too.

If you moved during the year

A mid-year move changes what Missouri taxes before it changes any subtraction.

Under the 2025 instructions, a part-year resident is taxed on all income earned while living in Missouri, and may use either the MO-NRI Missouri income percentage or the MO-CR credit for tax paid to another state, whichever works out better.

A nonresident required to file who has income from another state uses MO-NRI.

The instructions do address subtraction modifications involving other-state income, including a capital-gain example in MO-CR. They do not give a crypto-specific move example. Use the residency forms and seek licensed preparer help for a complex allocation (the line alone does not settle it).

The general method lives on crypto taxes by state.

What Missouri says about crypto by name

The Department of Revenue's news release dated August 26, 2025 names cryptocurrency among assets whose short-term and long-term capital gains qualify for the 100% subtraction. That release is an official notice, not statute text.

The 2025 Tax Legislative Changes summary identifies the enacted provision, Section 143.121 RSMo through HB 594 and HB 508. The MO-1040 instructions supply the mechanics at MO-A Part 1 line 18 without naming crypto. We assembled the form trail from these documents because the notice and instructions serve different purposes.

Form 1099-DA and the state

The IRS About Form 1099-DA page carries a Recent developments entry dated January 7, 2026 stating that the form is excluded from the Combined Federal/State Filing program for tax year 2025. That entry speaks to 2025 and to that one program.

Later-year eligibility and any other route by which state agencies obtain broker data sit outside the documents behind this page, so read the exclusion as a fact about CF/SF in 2025 rather than as a conclusion about what Missouri sees or what you owe the state.

Check the tax year and reporting scope

The enacted Section 143.121.3(14)(a) starts the individual capital-gains subtraction with TY2025.

The DOR capital-gains FAQ contradicts itself: its opening and combined-return example say 2025, while its timing answer says 2026.

We use the statute and 2025 filing instructions for the TY2025 rule; resolve personal filing questions with DOR or a qualified preparer.

Section 143.121.3(15) separately starts a specie capital-gain provision in 2026. That is not the starting year for the individual rule in paragraph 3(14)(a). The corporate rate trigger in paragraph 3(14)(b) is also separate; none of these capital-gain provisions establishes an exclusion for ordinary staking or mining receipts.

Whether the subtraction stands in the same form for tax year 2026 is not settled by any of the 2025 documents, so this page stays pinned to tax year 2025 until a later-year figure is published by the Department.

Missouri's treatment of mining and staking receipts is a separate question from capital gains.

The capital-gains announcement does not establish Missouri's treatment of reward receipts. Keep that question separate from a later sale of the received assets.

For a move, the instructions contain allocation mechanics, but no crypto-specific example resolving an individual reader's facts.

The enacted individual provision supplies the starting year; the Department's legislative summary and 2025 filing instructions supply the filing context. The contradictory FAQ timing answer does not override that statute text.

Bottom line

Missouri's rule is real and it is traceable.

Individuals subtract 100% of the federally reported capital gain for tax year 2025, cryptocurrency is named in the Department's own release, and the filing route runs from federal line 7a to MO-A Part 1 line 18 to MO-1040.

For anyone who sold in 2025, that is worth the reconciling time.

The announcement does not establish a blanket exemption on crypto income. Reward receipts need separate analysis, and a part-year filer must follow the residency forms rather than copying the subtraction without considering allocation.

Questions

Do I have to wait for Missouri's rate to fall to 4.5% before claiming the deduction?

No. The 4.5% trigger belongs to corporations: they take the 100% deduction from January 1 of the tax year after the top individual rate reaches that level, and they have no deduction for 2025. Individual eligibility starts with tax year 2025 itself.

I have a loss on federal line 7a. What do I enter on MO-A?

Enter $0 on MO-A Part 1 line 18 for 2025, as the instructions direct. Do not carry the negative federal figure into this state subtraction line.

Does the deduction mean I can leave staking rewards off my return?

No. The capital-gains subtraction does not establish permission to omit rewards; this page addresses federal line 7a, while the federal treatment of staking rewards addresses receipts.

The Missouri capital-gains announcement does not establish the state treatment of those receipts.

How can I check that my return used the Missouri adjustment?

Check the printed forms in order: federal line 7a → MO-A Part 1 line 18 → MO-1040. Compare line 18 with the federal amount, including the negative-to-$0 rule, and resolve discrepancies against the instructions. A Form 1099-DA alone does not show that the state adjustment was made.

Same mechanism family with a different qualifying condition: Arizona's purchase-date rule. Partial removal instead of full: exclusions in South Carolina, North Dakota and Wisconsin.

For the federal layer that produces line 7a, see federal short- and long-term rates, and to put a number on a sale, estimate the federal tax on a sale.

That calculator is federal-only, so keep its output away from the Missouri subtraction line.

Before you file, set your 2025 federal line 7a amount beside MO-A line 18 and store the Department's 2025 instructions with the records that back the number.

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