You don't have to sell the catalogue to get money out of it.
A client owns a catalogue throwing off £200,000 a year and needs a lump sum: a tax bill, a divorce , a buyout of a former partner, funding for a new venture. The reflex advice is binary. Sell the catalogue and bank a , or don't, and wait for the income to arrive a statement at a time.
There's a third route. Royalty-backed financing is borrowing against the stream instead of selling it. Specialist advance providers, and a small number of banks with music desks, will lend a lump sum secured on future royalty income. The collections repay the debt, and once it's cleared, the lender's charge is released and the income is the client's again. Ownership of the rights never moves.
The logic is one you already know from label and publisher deals: an advance is a loan repaid out of your own future income. The differences here are that the lender is a third party rather than your label, the rights stay exactly where they are, and the money is priced as credit (interest, or a discount on the income purchased) rather than buried in a .
The questions that decide whether this is good advice are the lender's questions. How much will this stream actually produce while the loan is outstanding? And what happens, operationally and legally, if it produces less?