PRT-RTN: Delaware Partnership Return (Revision)

Delaware · Delaware Division of Revenue · Used for tax years 2025

Form PRT-RTN is the 2025 Delaware Partnership Return. It reports partnership income and deductions in total and within Delaware, partner counts, and apportionment information when applicable.

What you'll need

  • Attach a completed copy of U.S. Partnership Return of Income, Form 1065, and all schedules.
  • Have the partnership’s taxpayer ID, legal name, address, nature of business, and year formed ready.
  • Have the total number of partners and the number of Delaware resident partners ready.
  • Use the federal Form 1065, Schedule K amounts referenced on the form to complete the income and deduction entries.
  • If Schedule 2 applies, have records of property owned and rented, employee compensation, and gross receipts for Delaware and all sources.

How to file

Complete the return and attach the completed federal Form 1065 and all schedules. A partner must sign and date the return. Keep a copy for your records.

The form directs you to mail the completed form with remittance payable to:

Delaware Division of Revenue

PO Box 8703

Wilmington, DE 19899-8703

Common mistakes

  • Forgetting the federal attachments. The form says to attach a completed Form 1065 and all schedules.
  • Leaving the return unsigned. The form reminds you to sign before filing.
  • Not keeping a copy. The form specifically reminds you to keep a copy for your records.

Questions people ask

When should I complete Schedule 2?

Complete Schedule 2 only if the partnership has income derived from or connected with sources in Delaware and at least one other state, and has one or more partners who are not Delaware residents.

Do I need to include my federal partnership return?

Yes. Attach a completed copy of federal Form 1065 and all schedules.

Who signs the return?

The form provides a signature line for a partner and a separate signature line for a paid preparer.

How do I indicate an amended return or an address change?

The form has checkboxes for an amended return and a change of address. For an address change, it also asks you to check the applicable location, mailing, or billing boxes.

Official sources

All versions of PRT-RTN