Company: TSI
Filing Date: 2025-08-08
Form Type: N-2
Source: 0001193125-25-177098
Chunk: 2

Company: TCW STRATEGIC INCOME FUND INC
Filing Date: 2025-08-08
Form: N-2
Chunk 2
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Preliminary Prospectus (subject to completion), dated August 8, 2025

BASE PROSPECTUS

[ ] Shares

TCW STRATEGIC INCOME FUND, INC.

Shares of Common Stock

Rights to Purchase Shares of Common Stock

The Fund.TCW Strategic Income Fund, Inc. (the “Fund,” “we,” “us,” or “our”) is a
diversified, closed-end management investment company. The Fund’s investment objective is to seek a total return comprised of current income and capital appreciation. The Fund’s investment objective
is considered to be a fundamental policy and may only be changed with the approval of a “majority of the Fund’s outstanding voting securities” (as defined in the Investment Company Act of 1940, as amended). There can be no assurance
that the investment objective of the Fund will be realized.

We may offer, from time to time, in one or more offerings, up to [ ] shares
of our common stock, par value $0.01 per share (“Common Stock”). We may also offer subscription rights to purchase our Common Stock. Common Stock may be offered at prices and on terms to be set forth in one or more supplements to this
Prospectus (each, a “Prospectus Supplement”). You should read this Prospectus and the applicable Prospectus Supplement carefully before you invest in our Common Stock.

Our Common Stock may be offered directly to one or more purchasers, including existing stockholders in a rights offering, through agents
designated from time to time by us, or to or through underwriters or dealers. The Prospectus Supplement relating to the offering will identify any agents or underwriters involved in the sale of our Common Stock, and will set forth any applicable
purchase price, fee, commission or discount arrangement between us and our agents or underwriters, or among our underwriters, or the basis upon which such amount may be calculated. The Prospectus Supplement relating to any offering of rights will
set forth the number of Common Stock issuable upon the exercise of each right (or number of rights) and the other terms of such rights offering. We may not sell any of our Common Stock through agents, underwriters or dealers without delivery of a
Prospectus Supplement describing the method and terms of the particular offering of our Common Stock.

Our shares of Common Stock are
listed on the New York Stock Exchange (“NYSE”) under the symbol “TSI.” The last reported sale price of our Common Stock, as reported by