Company: VVR
Filing Date: 2025-03-06
Form Type: POS EX
Source: 0001193125-25-048460
Chunk: 0

Company: Invesco Senior Income Trust
Filing Date: 2025-03-06
Form: POS EX
Chunk 0
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As filed with the Securities and Exchange Commission on March 6, 2025

Securities Act File No. 333-283795

Investment Company Act File No. 811-08743

United States

Securities and Exchange Commission

Washington, D.C. 20549

FORM N-2

| Registration Statement             |     |   |
| under                              |     |   |
| the Securities Act of 1933         |     | ☒ |
| Pre-Effective Amendment No.        |     | ☐ |
| Post-Effective Amendment No. 1     |     | ☒ |
| and/or                             |     |   |
| Registration Statement             |     |   |
| under                              |     |   |
| the Investment Company Act of 1940 |     | ☒ |
| Amendment No. 11                   |     | ☒ |

### INVESCO SENIOR INCOME TRUST
(Exact Name of Registrant as Specified in Charter)

11 Greenway Plaza, Houston, TX 77046-1173

(Address of Principal Executive Offices)

Registrant’s Telephone Number, Including Area Code: (713) 626-1919

Melanie Ringold, Esq.

11 Greenway Plaza, Houston, Texas 77046

(Name and Address of Agent for Service)

Copies to:

| Taylor V. Edwards, Esquire  |     | Matthew R. DiClemente, Esquire        |
| Invesco Advisers, Inc.      |     | Mena M. Larmour, Esquire              |
| 225 Liberty Street, 15th FL |     | Stradley Ronon Stevens and Young, LLP |
| New York, NY 10281-1087     |     | 2005 Market Street, Suite 2600        |
|                             |     | Philadelphia. Pennsylvania 19103-7018 |

Approximate Date of Commencement of Proposed Public Offering:

From time to time after the effective date of this Registration Statement.

| ☐ | Check box if the only securities being registered on this Form are being offered pursuant to dividend or 
 interest reinvestment plans.                                                                             |

| ☒ | Check box if any securities being registered on this Form will be offered on a delayed or continuous basis in                                            
 reliance on Rule 415 under the Securities Act of 1933 (“Securities Act”), other than securities offered in connection with a dividend reinvestment plan. |

| ☒ | Check box if this Form is