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    • California—Corporate Income Tax: Apportionment Regulation Updated
    • California—Multiple Taxes: Low Income Housing Credit Provisions Amended
    • California—Sales and Use Tax: Limited Tax Exclusion for Pawnbrokers Extended Through December 31, 2031
    • District of Columbia—Multiple Taxes: Sales Tax Increase Delayed, Decoupling Provision Readopted
    • Idaho—Multiple Taxes: Interest Rate on Tax Delinquencies and Refunds Set for 2027
    • Massachusetts—Motor Fuel Tax: Two Month Suspension For Gas And Diesel Tax Proposed
    • New Mexico—Tobacco Tax, Practice and Procedure: Rules Regarding New Regulations, Cigarette Taxes Amended
    • Oklahoma—Personal Income Tax: Electronic Filing Guide for Software Developers Issued
    • Oklahoma—Personal Income Tax: Electronic Filing Handbook Issued
    • Rhode Island—Sales and Use Tax: Report Generated through AI and Human Review was Taxable
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    State Tax Day - Current, S.8, Oklahoma—Personal Income Tax: Electronic Filing Guide for Software Developers Issued, (Sep 24, 2026)

    For individual income tax purposes, the Oklahoma Tax Commission has issued an e-file handbook for software developers. The guide lists forms for 2026 that may be filed electronically, including: OTC Form 511, OTC Form 511-NR, OTC Form 511-CR, and OTC ...

    For individual income tax purposes, the Oklahoma Tax Commission has issued an e-file handbook for software developers. The guide lists forms for 2026 that may be filed electronically, including: OTC Form 511, OTC Form 511-NR, OTC Form 511-CR, and OTC Form 511-EIC.

    MeF Electronic Return Filing Guide for Software Developers, Oklahoma Tax Commission, September 14, 2026, ¶201-306

    Other References:

    Explanations at ¶89-106

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