Company: TSI
Filing Date: 2025-10-06
Form Type: N-2/A
Source: 0001193125-25-232082
Chunk: 18

Company: TCW STRATEGIC INCOME FUND INC
Filing Date: 2025-10-06
Form: N-2/A
Chunk 18
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| • |     | investing in fixed income securities, including the risk of investing in U.S. Government Securities, corporate debt securities (including high-yield corporate debt securities), mortgage-related securities, asset-backed securities, and CDOs; |

| • |     | equity securities risk, including the risk of investing inmid-and large-capitalization companies; |

| • |     | investing in other investment companies, including other investment companies with exposure to private credit and private asset-backed securities; |

| • |     | investing in Private Funds with exposure to private credit and private asset-backed securities; |

| • |     | investing in securities of foreign issuers; |

| • |     | investing in derivative instruments, including structured products, swaps, futures contracts, and forward contracts, among others; and |

| • |     | use of financial leverage. |

Special risks to investors in the Fund’s Common Stock include risks relating to the Fund’s distribution policy, dividends and use of leverage, the Common Stocks’ market price and liquidity, dilution and portfolio turnover. Other general risks include risks related to:

| • |     | the Fund’s long-term investment techniques, management and dependence on key personnel; |

| • |     | market risks, market disruptions and geopolitical events, economic events and market events, government intervention in the financial markets, and inflation; |

| • |     | the anti-takeover provisions in the Fund’s charter; and |

| • |     | the Fund’s status as a regulated investment company (“RIC”) under Subchapter M of the Code, for U.S. federal income tax purposes. |

SUMMARY OF FUND EXPENSES The purpose of the following table and the example below is to help you understand the fees and expenses that you, as an investor in the Fund, would bear directly or indirectly. The expenses shown in the table under “Other expenses” are estimated for 12

the Fund’s current fiscal year, based on the Fund’s expenses during the six-monthperiod ended on June 30, 2025. The expenses shown in the table under “Interest expenses on bank borrowings,” “Total annual expenses” and “Total annual expenses after expense reimbursement” are estimated based on the Fund’s average net assets for the six-monthperiod ended June 30, 2025 of $244,149,467.98. The tables show Fund expenses as a percentage of net assets attributable to shares of Common Stock.

| Common Stockholder Transaction Expenses                                        |     | Percentage ofOffering Price