Signing Requirements – The taxpayer and representative are required to sign.[2]
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Oklahoma Tax Power of Attorney (Form BT-129)
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Updated June 11, 2025
An Oklahoma tax power of attorney (Form BT-129) authorizes an agent to handle a taxpayer's tax-related affairs. This authority includes the power to prepare, sign, and file tax returns; pay taxes; collect refunds; and represent the principal before the Oklahoma Tax Commission.[1]