# EDGAR Filing Document

**Accession Number:** 0000880268
**File Stem:** 0000880268-25-000033
**Filing Date:** 2025-7
**Character Count:** 7751
**Document Hash:** 67291e9a9f40271f18f156309d408fff
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000880268-25-000033.hdr.sgml**: 20250731

**ACCESSION NUMBER**: 0000880268-25-000033

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 20

**FILED AS OF DATE**: 20250731

**DATE AS OF CHANGE**: 20250731

**EFFECTIVENESS DATE**: 20250731

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AMERICAN CENTURY INTERNATIONAL BOND FUNDS
- **CENTRAL INDEX KEY:** 0000880268

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-43321
- **FILM NUMBER:** 251169994

**BUSINESS ADDRESS:**
- **STREET 1:** 4500 MAIN STREET
- **STREET 2:** 9TH FLOOR
- **CITY:** KANSAS CITY
- **STATE:** MO
- **ZIP:** 64111
- **BUSINESS PHONE:** 8003218321

**MAIL ADDRESS:**
- **STREET 1:** 4500 MAIN STREET
- **STREET 2:** 9TH FLOOR
- **CITY:** KANSAS CITY
- **STATE:** MO
- **ZIP:** 64111

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BENHAM INTERNATIONAL FUNDS
- **DATE OF NAME CHANGE:** 19920929

## Series and Classes Contracts Data

### EMERGING MARKETS DEBT FUND (Series ID: S000046096)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| INVESTOR CLASS | AEDVX         | C000144189 |
| R5 CLASS       | AEDJX         | C000144190 |
| A CLASS        | AEDQX         | C000144191 |
| C CLASS        | AEDHX         | C000144192 |
| R CLASS        | AEDWX         | C000144193 |
| R6 CLASS       | AEXDX         | C000144194 |
| I CLASS        | AEHDX         | C000189713 |
| Y CLASS        | AEYDX         | C000189714 |
| G CLASS        | AEDGX         | C000194401 |

---

## Series and Classes Contracts Data

### EMERGING MARKETS DEBT FUND (Series ID: S000046096)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000144189 | INVESTOR CLASS | AEDVX           |
| C000144190 | R5 CLASS       | AEDJX           |
| C000144191 | A CLASS        | AEDQX           |
| C000144192 | C CLASS        | AEDHX           |
| C000144193 | R CLASS        | AEDWX           |
| C000144194 | R6 CLASS       | AEXDX           |
| C000189713 | I CLASS        | AEHDX           |
| C000189714 | Y CLASS        | AEYDX           |
| C000194401 | G CLASS        | AEDGX           |

?xml version='1.0' encoding='ASCII'? ck0000880268-20250731

---

| | |
|:---|:---|
| American Century International Bond Funds<br>**Prospectus Supplement**<br>**Emerging Markets Debt Fund** | ![newaci_logoblk.jpg](ck0000880268-20250731_g1.jpg) |
| Supplement dated August 1, 2025 ■ Prospectus dated March 1, 2025 | Supplement dated August 1, 2025 ■ Prospectus dated March 1, 2025 |

---

*The following replaces the* Fees and Expenses *tables on page 2 of the prospectus:*

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Shareholder Fees** (fees paid directly from your investment) | **Shareholder Fees** (fees paid directly from your investment) | **Shareholder Fees** (fees paid directly from your investment) | **Shareholder Fees** (fees paid directly from your investment) | **Shareholder Fees** (fees paid directly from your investment) | **Shareholder Fees** (fees paid directly from your investment) | **Shareholder Fees** (fees paid directly from your investment) | **Shareholder Fees** (fees paid directly from your investment) | **Shareholder Fees** (fees paid directly from your investment) | |
|  | *Investor* | *I* | *Y* | *A* | *C* | *R* | *R5* | *R6* | *G* |
| Maximum Sales Charge (Load) Imposed on<br>Purchases (as a percentage of offering price) |  |  |  | 4.50% |  |  |  |  |  |
| Maximum Deferred Sales Charge (Load) (as a<br>percentage of the lower of the original offering<br>price or redemption proceeds when redeemed<br>within one year of purchase) |  |  |  | None¹ | 1.00% |  |  |  |  |
| Maximum Annual Account Maintenance Fee<br>(waived if eligible investments total at least $10,000) | $25 |  |  |  |  |  |  |  |  |

---

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Annual Fund Operating Expenses** (expenses that you pay each year as a percentage of the value of your investment) | **Annual Fund Operating Expenses** (expenses that you pay each year as a percentage of the value of your investment) | **Annual Fund Operating Expenses** (expenses that you pay each year as a percentage of the value of your investment) | **Annual Fund Operating Expenses** (expenses that you pay each year as a percentage of the value of your investment) | **Annual Fund Operating Expenses** (expenses that you pay each year as a percentage of the value of your investment) | **Annual Fund Operating Expenses** (expenses that you pay each year as a percentage of the value of your investment) | **Annual Fund Operating Expenses** (expenses that you pay each year as a percentage of the value of your investment) | **Annual Fund Operating Expenses** (expenses that you pay each year as a percentage of the value of your investment) | **Annual Fund Operating Expenses** (expenses that you pay each year as a percentage of the value of your investment) | |
|  | *Investor* | *I* | *Y* | *A* | *C* | *R* | *R5* | *R6* | *G* |
| Management Fee | 0.96% | 0.86% | 0.76% | 0.96% | 0.96% | 0.96% | 0.76% | 0.71% | 0.71% |
| Distribution and Service (12b-1) Fees |  |  |  | 0.25% | 1.00% | 0.50% |  |  |  |
| Other Expenses | 0.02% | 0.02% | 0.02% | 0.02% | 0.02% | 0.02% | 0.02% | 0.02% | 0.02% |
| Total Annual Fund Operating Expenses | 0.98% | 0.88% | 0.78% | 1.23% | 1.98% | 1.48% | 0.78% | 0.73% | 0.73% |
| Fee Waiver<sup>2</sup> | 0.08% | 0.08% | 0.08% | 0.08% | 0.08% | 0.08% | 0.08% | 0.08% | 0.71%³ |
| Total Annual Fund Operating Expenses After Fee Waiver | 0.90% | 0.80% | 0.70% | 1.15% | 1.90% | 1.40% | 0.70% | 0.65% | 0.02% |

---

<sup>1</sup> *Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of purchase.*

<sup>2</sup> *The advisor has agreed to waive 0.08 percentage points of the fund's management fee. The advisor expects this waiver to continue until July 31, 2026 and cannot terminate it prior to such date without the approval of the Board of Trustees.*

<sup>3</sup> *The advisor has agreed to waive the G Class's management fee in its entirety. The advisor expects this waiver to remain in effect permanently and cannot terminate it without the approval of the Board of Trustees.* 

------

*The following replaces the* Example *section on page 2 and 3 of the prospectus:*

**Example**

The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods and that you earn a 5% return each year. The example also assumes that the fund's operating expenses remain the same, except that it reflects the rate and duration of any fee waivers noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | *1 year* | *3 years* | *5 years* | *10 years* |
| Investor Class | $92 | $305 | $535 | $1194 |
| I Class | $82 | $273 | $480 | $1077 |
| Y Class | $72 | $242 | $426 | $959 |
| A Class | $562 | $816 | $1089 | $1864 |
| C Class | $193 | $615 | $1061 | $2104 |
| R Class | $143 | $461 | $801 | $1760 |
| R5 Class | $72 | $242 | $426 | $959 |
| R6 Class | $67 | $226 | $399 | $899 |
| G Class | $2 | $6 | $11 | $26 |

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