Overflow currently offers account connections with most major brokerages including Charles Schwab, Fidelity, and E*Trade. If Overflow does not have a direct connection with your brokerage, you can still initiate your stock gift through our manual online flow, which you will be prompted to enter if your brokerage is not directly supported. You can also choose to opt in to Overflow's concierge, fullyguided stock donation service by emailing stockgifts@overflow.co.