How Tax Payments and Treasury Issuance Tighten Repo Liquidity
Summary
The document explains how corporate tax payments and Treasury debt issuance can reduce cash available to banks and money markets. Corporations may hold funds in short-term investments that flow through money market funds into repo lending. Paying taxes pulls those funds out of that lending chain. Treasury issuance can also move bank reserves to the Treasury’s Federal Reserve account, draining funds from the banking system. With less short-term cash available, banks may seek more repo borrowing.
The responses connect these reserve pressures to higher repo rates during the episode described, including a reported peak of 9%, and say the Federal Reserve supplied overnight repo funding as rates later calmed. Bank reserve needs are presented as the channel linking the cash drains to repo demand. This is a brief explanation of a particular market episode, not a full model of repo pricing; it does not quantify each driver’s separate contribution or discuss other possible sources of rate volatility.
Key ideas
- Corporate tax payments can remove funds that had been invested through money market funds and lent in repo markets.
- Treasury issuance can shift reserves from bank accounts to the Treasury’s account at the Federal Reserve.
- Reduced short-term cash availability can leave banks seeking more repo funding and push repo rates higher.
- The responses describe Federal Reserve overnight repo operations as adding reserves during the episode.
- The discussion does not quantify each factor’s independent effect on repo rates.
Tags
Full text
# How do the following aspects lead to U.S. Repo shortfalls # How do the following aspects lead to U.S. Repo shortfalls A major theme in the markets this past week has been the repo rate hikes and the sudden disappearance of liquidity. Although most are confused as to the main reason, there seems to be a consensus on the underlying drivers: - Corporate tax payments - Treasury coupon auctions - Banks reserves shortfalls I want to know how exactly the 3 aspects affect liquidity on the repo markets. It does not seem intuitive to me. ## Answer by JoshK (score 3, accepted) https://quant.stackexchange.com/a/48784 I'll add a little more color. This week corporations had to pay about $35 billion in corporate tax. When corporations do this they withdraw those funds from the short-term money markets. Essentially the corporations were using this tax payment money to lend short term. They would lend this money to money market funds - who in turn would lend this money to banks via the repo market. The Treasury also issued more debt, which moved money (reserves) from the accounts of the various banks that bought the debt to the Treasury (which has it's own account at the Fed). These two factors: - Corporates taking money out of money market funds and - The Treasury taking money out of the banking system That left banks without the usually supply of short-term cash. And hence the madness ensued. ## Answer by dm63 (score 2) https://quant.stackexchange.com/a/48783 The corporate tax payments to the Treasury result in less reserves in the banking system. Similarly , when there is Treasury issuance, reserves leave the banking system. Banks need a certain amount of reserves to function normally and to have enough for a rainy day (eg if there were unexpected withdrawals from depositors). Earlier this week , banks found themselves short of the desired amount of reserves, so they tried to borrow in the repo market. Hence repo rates went up to as high as 9%. Seeing this , the Federal Reserve intervened daily to provide extra reserves through an auction of overnight repos. Subsequently overnight repo has calmed down.
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