Mail all amended tax returns to:     Delaware Insurance Department

                                                            Attn: PREMIUM TAX SECTION

                                                            841 Silver Lake Blvd.

                                                            Dover, DE 19904-2465

Attach a copy of the original tax return to the amended return.  Include a cover letter explaining the changes that have been made.  Include documentation to substantiate the changes if necessary.

IF YOU ARE REQUESTING A REFUND:  Delaware law allows a period of one year after the date the tax was originally due for companies to request a refund.  If you are submitting an amendment after that one year limit, your refund request will be denied.  See 18 Del. C. § 711.

To obtain Prior Year tax forms for amendments click here