| Form 1100 | Corporate Income Tax Return | 01/14/2015 |
| Form 1100CR 0101 | Computation Schedule for Claiming Delaware Economic Development Credits | 01/30/2014 |
| Form 1100-EXT (2013) | Corporation Income Tax - Request For Extension - Calendar Year 2013 and Fiscal Years Ending in 2014 | 01/14/2015 |
| Form 1100-EXT (2014) | Corporation Income Tax - Request For Extension - Calendar Year 2014 and Fiscal Years Ending in 2015 | 01/14/2015 |
| Form 1100S | S Corporation Reconciliation And Shareholders Return | 01/14/2015 |
| Form 1100X | Corporate Income Tax Return - Amended | 01/30/2014 |
| Form 1268-LA2 | Affiliated Finance Company - Business License Application/Renewal | 02/05/2014 |
| Form 1280 | Contractors - Statement of Payments Made to Subcontractors | 06/19/2009 |
| Form 1280-DEV | Contractors - Deductions for Amounts Paid to Subcontractors | 09/23/2008 |
| Form 1800M | Alcoholic Beverage Manufacturers Tax Return | 04/27/2009 |
| Form 1801AC 0009 | Tax Credits - Land and Historic Resource Conservation - Application and Computation Schedule | 01/30/2014 |
| Form 1811AC 0905 | Tax Credits - Historic Preservation - Application and Computation Schedule | 01/30/2014 |
| Form 1811CC 0701 | Tax Credits - Certification of Unused Delaware Historic Preservation Tax Credits | 01/30/2014 |
| Form 1902(ap) | Application for Exemption from Corporate Income Tax - Holding Company | 02/05/2014 |
| Form 1902(b) | Holding Company/Investment Company Return | 03/14/2014 |
| Form 200-01X | Resident Amended Income Tax Return | 02/11/2015 |
| Form 200-02X | Non-Resident Amended Income Tax Return | 02/11/2015 |
| Form 2001AC 0104 | Tax Credits - Neighborhood Assistance - Application and Computation Schedule | 02/05/2014 |
| Form 2070AC 0007 | Tax Credits - Delaware Research and Development - Application and Computation Schedule | 02/05/2014 |
| Form 2080DE | Tax Credits - New Economy Jobs Program - Application | 04/01/2010 |
| Form 373 | Wholesalers - Exemption Certificate | 01/30/2014 |
| Form 402AP 9901 | Tax Credits - Application For New Business Facility Credits | 02/05/2014 |
| Form 402LTR 9901 | Gross Receipts - License Tax Reduction for New Businesses - Computation Schedule | 02/05/2014 |
| Form 5060 | Contractors - Statement of Contracts Awarded | 12/19/2012 |
| Form 5401(8)BP | Realty Transfer Tax - Declaration For Building Permit | 02/05/2014 |
| Form 5401(8)CO | Realty Transfer Tax - Declaration for Certificate Of Compliance Or Occupancy | 02/05/2014 |
| Form 5402 | Realty Transfer Tax - Return And Affidavit Of Gain And Value | 01/30/2014 |
| Form 5403 | Real Estate Tax Return - Declaration of Estimated Income Tax | 02/05/2014 |
| Form 5502TR 9811 | Public Utility Tax Return | 02/05/2014 |
| Form 5506CPE (2014) | Public Utility Tax - Exemption from Cell Phone Tax - 2014 | 12/19/2013 |
| Form 5507 | Public Utility Tax - Claim for Refund | 01/30/2014 |
| Form 6100 | Occupancy Tax - Exemption Certificate | 01/14/2008 |
| Form 6401 | Headquarters Management Corporation - Application and Election for License | 02/05/2014 |
| Form 700 | Tax Credits - Delaware Income Tax Credit Schedule | 01/12/2015 |
| Form 9114W | Petroleum Wholesalers - Statement of Payments made for HSCA-Taxed Purchases | 08/07/2007 |
| Form 9114W-Supp | Petroleum Wholesalers - Statement of Payments made for HSCA-Taxed Purchases - Form 9114W Line 5 | 08/07/2007 |
| Form DE2210 | Underpayment of Estimated Taxes | 02/12/2015 |
| Form DE8453 | Delaware Individual Income Tax Declaration for Electronic Filing | 01/12/2015 |
| Form DE8453OL | Delaware Individual Income Tax Declaration for On-line Filing | 01/12/2015 |
| Form E-911 | Telecommunications Worksheet | 02/11/2014 |
| Form 200-01 | Delaware Individual Resident Income Tax | 01/12/2015 |
| Form 200C | Delaware Composite Return | 02/10/2015 |
| Form 209 | Claim for Refund of Deceased Taxpayer | 01/12/2015 |
| Form 300 | Delaware Partnership Return | 01/12/2015 |
| Form 300i | Delaware Partnership Instructions | 01/06/2015 |
| Form 300-Schd-K1 | Partners Share of Income | 01/12/2015 |
| Form 329 | Special Tax Computation for Distribution from Qualified Retirement Plan | 01/12/2015 |
| Form 400 | Schedule K-1 | 01/12/2015 |
| Form 400-ES-EX | Declaration of Estimated Tax Return & Instructions | 01/12/2015 |
| Form 900NR | Non-Resident Estate Tax Return | 01/12/2015 |
| Form 900R | Resident Estate Tax Return | 01/12/2015 |
| Form 200-02 | Delaware Non-Resident Individual Income Tax | 01/12/2015 |
| Form 5403 | Real Estate Tax Return - Declaration of Estimated Income Tax | 01/12/2015 |
| Form 5506CPE-2014 | Exemption from Public Utility Tax on Cell Phones | 02/24/2014 |
| Form 5506CPE-2015 | Exemption from Public Utility Tax on Cell Phones | 12/09/2014 |
| Form 700 | Delaware Income Tax Credit Schedule | 01/12/2015 |
| Form 800 | Business Income of Non-Resident | 01/12/2015 |
| Form IRA | Special Tax Computation | 01/12/2015 |
| Schedule W | Apportionment Worksheet | 02/05/2015 |
| Form W-4 | Withholding Tax - Allowance Computation Worksheet - Resident | 02/05/2014 |
| Form W-4DE | Withholding Exemption Certificate for Military Spouse | 01/25/2010 |
| Form W-4-NR | Withholding Tax - Allowance Computation Worksheet - Non-Resident | 02/05/2014 |
| Form WREQ | Withholding Tax - Request for Change Form | 12/28/2011 |