Capital Gains Tax When Selling a Home in Missouri

The big Missouri update — no state capital gains tax

What that means in plain terms: previously, Missouri taxed capital gains as ordinary income (top rate 4.7% in 2025). Now, the state portion on a qualifying gain is zero. You may still owe federal tax — that part hasn’t changed — but the state layer is gone for individuals. (The corporate version of this break is tied to future state rate cuts and isn’t in effect for 2026.)

The federal home-sale exclusion (Section 121)

On top of Missouri’s change, the long-standing federal exclusion still does the heavy lifting for most homeowners:

• Exclude up to $250,000 of gain if single, $500,000 if married filing jointly, on the sale of your primary residence.
• The test: you must have owned and lived in the home as your primary residence for at least 2 of the last 5 years before the sale.
• The two years don’t have to be consecutive — 24 months / 730 days total inside the 5-year window counts.
• You can use the exclusion once every two years.
• It applies to gains, not losses, and only to a primary residence — not vacation homes or rentals (unless converted, with extra rules).

For most Missouri sellers, that means a typical home-sale profit is fully excluded federally and now untaxed at the state level too.

How to figure your actual gain (basis matters)

Your taxable gain isn’t your sale price — it’s your profit, and you can legally shrink it. The formula:

Sale price − selling costs − adjusted basis = gain

Your adjusted basis is what you originally paid plus the money you put into qualifying capital improvements over the years — additions, a new roof, HVAC, renovations, new windows, and similar. Keep receipts: every documented improvement raises your basis and lowers your taxable gain. Selling costs (agent commission, certain closing costs) come off the top too.

Veterans and military sellers

If you’re active-duty military and had to move on orders, the IRS lets you pause (suspend) the 5-year clock for up to 10 years while you’re stationed away, so a PCS move doesn’t cost you the exclusion. As a veteran-owned brokerage — Zac served in the Air Force — we work with a lot of military and veteran sellers, and this is one of those rules that’s easy to miss and worth real money. If you’ve moved on orders, mention it early so it’s factored in.

Selling a rental or investment property is different

This is where it gets more complicated, and where you really want a CPA:

• The primary-residence exclusion does not apply to a pure rental or investment property.
• Depreciation recapture: if you claimed depreciation while renting it out, that portion is taxed federally at up to 25%, even if the rest is long-term gain.
• Long-term federal rates (held over a year) are 0%, 15%, or 20% depending on income; short-term (under a year) is taxed as ordinary income.
• NIIT: high earners may owe an extra 3.8% net investment income tax federally.
• 1031 exchange: investors can often defer the gain by rolling proceeds into another investment property — rules-heavy and time-sensitive, so plan early.
• Missouri’s new exclusion can reduce the state portion, but none of it changes your federal obligations.

If you’re selling an investment property — a flip or a rental — the numbers get more involved, and it’s worth a real conversation before you list. Zac also runs an investment side (JZA Investments) and prepares broker price opinions, so he understands the investor side of these deals. But the tax specifics are a CPA’s job — talk to one early, especially around depreciation recapture and 1031 timing.

Frequently asked questions