# EDGAR Filing Document

**Accession Number:** 0000027825
**File Stem:** 0002071844-25-000592
**Filing Date:** 2025-11
**Character Count:** 6611
**Document Hash:** 3755200106650c9f838ac97e0c71588d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002071844-25-000592.hdr.sgml**: 20251128

**ACCESSION NUMBER**: 0002071844-25-000592

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251128

**DATE AS OF CHANGE**: 20251128

**EFFECTIVENESS DATE**: 20251128

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** DELAWARE GROUP INCOME FUNDS
- **CENTRAL INDEX KEY:** 0000027825

**ORGANIZATION NAME:**
- **EIN:** 232869117
- **FISCAL YEAR END:** 0731

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-37707
- **FILM NUMBER:** 251532465

**BUSINESS ADDRESS:**
- **STREET 1:** 100 INDEPENDENCE
- **STREET 2:** 610 MARKET STREET
- **CITY:** PHILADELPHIA
- **STATE:** PA
- **ZIP:** 19106-2354
- **BUSINESS PHONE:** 18005231918

**MAIL ADDRESS:**
- **STREET 1:** 100 INDEPENDENCE
- **STREET 2:** 610 MARKET STREET
- **CITY:** PHILADELPHIA
- **STATE:** PA
- **ZIP:** 19106-2354

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DELAWARE GROUP INCOME FUNDS INC
- **DATE OF NAME CHANGE:** 19961202

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DELAWARE GROUP DELCHESTER HIGH YIELD BOND FUND INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DELCHESTER BOND FUND INC
- **DATE OF NAME CHANGE:** 19880718

## Series and Classes Contracts Data

### Macquarie Floating Rate Fund (Series ID: S000028004)

---

|  |  |  |
|:---|:---|:---|
| Class Name          | Ticker Symbol | Class ID   |
| Class A             | DDFAX         | C000085181 |
| Class C             | DDFCX         | C000085182 |
| Class R             | DDFFX         | C000085183 |
| Institutional Class | DDFLX         | C000085184 |
| Class R6            | DDFZX         | C000228679 |

---

## Series and Classes Contracts Data

### Macquarie Floating Rate Fund (Series ID: S000028004)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000085181 | Class A             | DDFAX           |
| C000085182 | Class C             | DDFCX           |
| C000085183 | Class R             | DDFFX           |
| C000085184 | Institutional Class | DDFLX           |
| C000228679 | Class R6            | DDFZX           |

#### DELAWARE GROUP INCOME FUNDS

#### Macquarie Floating Rate Fund (formerly, Delaware Floating Rate Fund)

#### (the "Fund")

#### Supplement to the Fund's Summary Prospectus and Statutory Prospectus each dated November 29, 2024, as amended
As noted in the Fund supplement dated September 30, 2025, effective December 1, 2025 (Effective Date), the Fund's sole sub-advisor will be Macquarie Asset Management Credit Advisers US, LLC and all references to previous sub-advisors are removed from the Fund's Summary Prospectus, Statutory Prospectus, and SAI. In addition, on the Effective Date, the changes set forth below will take place.

*Under the "Fund Summary – Who manages the Fund?" section of the Prospectus, the current information is replaced in its entirety with the following:*

#### Who manages the Fund?

#### Investment manager
Delaware Management Company, a series of Nomura Investment Management Business Trust (a Delaware statutory trust)

---

| | | |
|:---|:---|:---|
| **Portfolio Manager** | **Title with Delaware Management Company** | **Start date on the Fund** |
| John McCarthy, CFA | Managing Director, Senior Portfolio Manager | January 2017 |

---

#### Sub-advisor
Macquarie Asset Management Credit Advisers US, LLC

---

| | | |
|:---|:---|:---|
| **Portfolio Managers** | **Title with Macquarie Asset Management Credit Advisers US, LLC** | **Start date on the Fund** |
| Vivek Bommi, CFA | Managing Director, Head of Leveraged Credit | November 2023 |
| Edward Lawless | Senior Vice President, Portfolio Manager | November 2024 |

---

*The following replaces the first paragraph and the information for John P. McCarthy in the section of the Fund's Statutory Prospectus entitled "Who manages the Fund – Portfolio managers"*:

John McCarthy is responsible for the overall management of the Fund. While John McCarthy has ultimate decision-making authority, he regularly consults with Vivek Bommi and Edward Lawless with respect to the Fund's investments.

#### John McCarthy, CFA

#### Managing Director, Senior Portfolio Manager
John is a Senior Portfolio Manager for Leveraged Credit at Nomura Asset Management International, a role he assumed in July 2016 at Macquarie Asset Management. He joined Nomura Asset Management as part of Nomura's acquisition of Macquarie Asset Management's US and European public investments business in 2025. He manages high yield portfolios and serves as a Co-Portfolio Manager for bank loans, fixed rate multisector, and core plus strategies.

Previously, he was Co-Head of Credit Research at Macquarie Asset Management. Before that, he held a number of roles with Delaware Investments (which was acquired by Macquarie in 2010), including Senior Research Analyst, Senior High Yield Analyst, High Yield Trader, and Municipal Bond Trader. John was also a Senior High Yield Analyst and Trader at Chartwell Investment Partners for five years.

------

John earned a Bachelor of Science in business administration from Babson College. He holds the Chartered Financial Analyst<sup>®</sup> designation and is a member of the CFA Society of Philadelphia.

**Because everyone's tax situation is unique, you should consult your tax professional about federal, state, local, or foreign tax consequences before making an investment in the Fund or acting on a distribution check (if applicable).**

**Delaware Management Company is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). None of the entities noted in this document is an authorized deposit-taking institution for the purposes of the Banking Act 1959 (Commonwealth of Australia) and the obligations of these entities do not represent deposits or other liabilities of Macquarie Bank Limited ABN 46 008 583 542 (Macquarie Bank). Macquarie Bank does not guarantee or otherwise provide assurance in respect of the obligations of these entities. In addition, if this document relates to an investment (a) each investor is subject to investment risk including possible delays in repayment and loss of income and principal invested and (b) none of Macquarie Bank or any other Macquarie Group company guarantees any particular rate of return on or the performance of the investment, nor do they guarantee repayment of capital in respect of the investment.**

#### Please keep this Supplement for future reference.

#### This Supplement is dated November 28, 2025.

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