S Corporation Tax Return Checklist Mini Form

2020 Form OR-20 Oregon Corporation Excise Tax …

owe tax of $500 or more. This includes Oregon’s mini-mum tax. See ORS 314.505 to 314.525 and supporting administrative rules. If you don’t make estimated payments as required, you may be subject to interest on underpayment of estimated tax (UND). Refer to Form OR-37 if you have an under-payment of estimated tax. Payment due dates

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