My response comes from reading the Federal Reserve Act:
http://www.federalreserve.gov/aboutthefed/fract.htm
Every member bank is required to purchase shares (of $100 each) of a Federal Reserve bank in its respective district.
The member bank must subscribe (purchase) an amount equal to “6 per centum of the [member bank’s] paid-up capital stock and surplus”, no more or less.
Presumably, this “capital stock and surplus” is derived from the equity portion of a member bank’s balance sheet.
If a member bank’s own capital stock reduces, or its Fed shares exceeds the mandatory amount, it must surrender some of its Fed shares back, to bring it back down to 6% of its capital stock and surplus.
The Fed bank pays a member bank an annual dividend of 6%, based on the amount of shares the member bank owns.
For example, if a member bank owns 1,000,000 shares at $100 each, for a total of $100,000,000, the annual dividend at 6% would be $6,000,000.
Net earnings are derived from the income of the assets owned by the Fed. The Federal Reserve Notes (the money created) are receipts for assets the Fed purchases, currently irredeemable, unless the Fed sells the asset to somebody.
These receipts are held by the public or the government.
Net earnings remaining after the dividends are paid, must be held in the Fed’s “surplus account.”
The Fed as a matter of practice, maintains the surplus account equal to the “paid-in capital account”, i.e. the capital contributed by the member banks to the Fed for purchase of the shares.
According to the Fed, the surplus account acts as cushion in the event the Fed experiences losses greater than its undistributed earnings, such as losses from foreign currency it holds when the dollars appreciates, Treasury securities it may sell below par value, losses from the discount window, etc.
Net earnings, beyond what is considered necessary to maintain the surplus account, can at the discretion of the Secretary of the Treasury be transferred to the Treasury, and be used only for these two purposes exclusively:
- “supplement the gold reserve held against outstanding United States notes”
- “shall be applied to the reduction of the outstanding bonded indebtedness of the United States”
Here is a press release from the Fed about its net earnings:
http://www.federalreserve.gov/newsevents/press/other/20100112a.htm
Income earned by the Fed is exempt from Federal, State, and local taxes, with the exception of taxes upon its real estate. Not sure if a municipality can actually tax a Federal Reserve property, but it would be interesting if a local entity tried.