Typical Delaware Personal Income Tax refunds may take up to 10-12 weeks to process More Info

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Division of
Revenue

Forms and Instructions


PLEASE NOTE: Some information on this website is provided in PDF format. This requires the use of an Acrobat Reader version 7.0 or higher, which may be downloaded free of charge from Adobe Systems.
  • ACH – Automatic Payment Plan Agreement Form
  • CISB – Collection Information Statement – Business
  • CISP – Collection Information Statement – Personal
  • CISI – Example For Completing A CIS Form
  • IRS 2848 – Power Of Attorney And Declaration Of Representative for IRS Representation
  • IRS 2848 – Instructions for Power Of Attorney And Declaration Of Representative for IRS Representation
  • Form 8821DE – Authorization to Release Delaware Tax Information

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