If you maintain a substantial portfolio of individual stocks or Exchange-traded Funds (ETFs), you can generate incremental yield by participating in a fully-paid securities lending program administered by your brokerage (such as Fidelity, Schwab, or Interactive Brokers). Under this arrangement, you lend your fully-paid, unencumbered securities to the broker, who subsequently lends them to other market participants (typically short sellers, arbitrageurs, or market makers).
In exchange for lending your shares, you receive a borrowing fee (the lending rate), which is split between you and the broker. The lending rate is dynamic and determined by market supply and demand. For liquid mega-caps, the yield is negligible (often under 0.10% annualized). However, for stocks with high short interest, low float, or those classified as hard-to-borrow, annualized yields can range from 1.0% to over 20%.
While share lending represents an easy source of passive income, it introduces three critical structural risks and tax friction:
While your shares are lent out, you are no longer the legal owner of record; the borrower owns the shares and receives any distributions. Consequently, you do not receive actual dividends. Instead, you receive substitute payments in lieu of dividends (often labeled as “cash in lieu” on your brokerage statement).
This is a significant tax penalty for high-bracket taxpayers. Qualified dividends receive preferential tax treatment under IRC §1(h)(11), capping the federal rate at 20% (plus the 3.8% Net Investment Income Tax (NIIT) under IRC §1411). Substitute payments, however, are treated as ordinary income and taxed at your marginal tax rate (up to 37%, plus NIIT and state income taxes). They are reported on Form 1099-MISC instead of Form 1099-DIV.
To mitigate this, some brokers attempt to recall lent shares before the ex-dividend date to ensure you receive actual qualified dividends, or pay a cash “gross-up” to compensate for the tax differential. However, these mechanisms are not contractually guaranteed. For high-yield dividend growth stocks, the tax drag from ordinary income classification can easily wipe out the interest yield earned from lending.
Securities on loan are not protected by the SIPC under the Securities Investor Protection Act. If your brokerage becomes insolvent while your shares are lent out, you cannot reclaim those shares from the SIPC pool.
To mitigate this credit risk, regulations require the borrowing broker to post collateral (usually cash or U.S. Treasuries) at a third-party custodian. The collateral must equal at least 102% of the market value of the lent securities and be marked-to-market daily. In the event of broker default, you have a claim against the collateral to repurchase the shares.
Because you transfer legal title when lending securities, you forfeit all proxy voting rights for the duration of the loan. If a material corporate governance vote is pending, you must instruct your broker to recall the shares before the record date to vote.
Participating in fully-paid lending is operationally seamless: you retain full ownership rights to sell the underlying securities at any time (which automatically terminates the loan and triggers settlement in the normal course), and you can opt out of the program at any time. For portfolios with concentrated positions in hard-to-borrow growth stocks, the program provides high-convexity income, provided you manage the tax drag on dividend-paying holdings. The lending transaction itself is structured to be tax-free under IRC §1058, “Transfers of securities under certain agreements”, meaning no capital gain or loss is realized upon the transfer or return of the securities.