That was confusing to me also. We don't actually pay any other brokers. Commission checks to other brokers are paid by the closing agent directly to the broker and any referral fees paid out are paid out of closing also. Those funds never actually hit our bank account.
I know in some markets the listing company collects the entire commission and then pays the co-broke. In that case, a 1099 tracks the in and out of the money so the listing company isn't on the hook for taxes.
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Broker-Owner Thirteen Years REO Experience
GRI,CRS,CRB,e-Pro
Some days I feel like the bug, other days I feel like the windshield