Oklahoma brokerage account growth calculator

What a taxable index-fund account is actually worth after expense-ratio drag and after Oklahoma takes its share of the gain — which, in most states, is not at the federal preferential rate.

Oklahoma taxes your gains as ordinary income

There is no state equivalent of the federal preferential rate here — a long-term gain is charged at Oklahoma's normal income brackets, exactly like wages. This is the common case, and it surprises people who assume the federal 15% carries over. Long-term capital gains are taxed as ordinary income at the graduated rates above — the federal preferential long-term rate does NOT carry over. Oklahoma DOES have a capital gain deduction (Schedule 511-A line 12, claimed on Form 561), but it is a narrow ECONOMIC DEVELOPMENT provision rather than a general exclusion, and describing it as one would be the error this note exists to prevent. It reaches only gains on: real or tangible personal property located IN OKLAHOMA and owned at least five uninterrupted years; stock or an ownership interest in an Oklahoma-HEADQUARTERED company owned at least two uninterrupted years; or property sold as part of the sale of substantially all the assets of an Oklahoma-headquartered business owned at least two uninterrupted years. A gain on publicly traded stock, an index fund, or out-of-state real estate gets no Oklahoma deduction at all. exclusionPct is deliberately left unset because the deduction is 100% of a qualifying gain and 0% of everything else, and a single percentage would misdescribe both cases. Separately, gain or loss on the sale of a U.S. Government obligation is exempt.