It's still true. IB's policies on proceeds from short sales of stock have not changed. The fact that they offer EFP is unrelated to interest they pay on short balances. Not all traders can use EFP, most of the stocks I short are not available as SSFs. Martin
The availability of EFPs is related to interest paid on short balances. EFPs make it possible to earn capital gains equivalent to interest on the entire short balance, including the first $100K, provided you are shorting stocks with corresponding SSFs.