Fixed Deposit vs. Treasury Bills: Pricing Your Business Cash

The Silent Cost of Idle Corporate Cash

Many small and medium enterprises (SMEs) in Kenya maintain significant working capital balances in commercial bank checking accounts that earn zero interest. When these businesses do seek interest-bearing placement, their first instinct is to ask their bank for a Fixed Deposit Account.

However, commercial banks operate on an interest spread. They borrow from depositors at low rates (such as 6% to 9% for corporate deposits) and lend that same capital to other borrowers at 16% to 22%, or put it into government securities. By placing cash directly in Treasury Bills (T-bills), a business can bypass the bank's margin and secure sovereign-backed returns.

Key Insight: Bank fixed deposits represent a commercial bank's debt, whereas Treasury Bills represent the government's direct debt. Placing short-term corporate liquidity in T-bills often increases yields by 3% to 6% while lowering default risk.

Credit Risk and the Resolution Hierarchy

When a corporate treasurer places funds in a financial instrument, the primary rule is capital preservation. Understanding the structural difference in credit risk between a bank deposit and a government security is critical:

1. Bank Fixed Deposits (Unsecured Debt)

A bank deposit is fundamentally a loan you grant to a commercial bank. You become an unsecured creditor. If the bank runs into insolvency or is placed under receivership (as occurred historically with entities like Chase Bank and Imperial Bank in Kenya):

• Your deposits are insured by the Kenya Deposit Insurance Corporation (KDIC), but only up to a maximum limit of KSh 500,000 per depositor per bank.
• Any amount exceeding KSh 500,000 is frozen. Recovery depends on the liquidator's ability to sell the bank's assets over several years, which frequently results in significant haircuts (capital losses).
• Consequently, placing millions of shillings in corporate cash in a medium-to-low tier bank carries real credit risk.

2. Treasury Bills (Sovereign Debt)

Treasury Bills represent a direct loan to the Government of Kenya. They are backed by the "full faith and credit" of the state, which possesses taxation powers and controls the national currency supply. In the local currency debt hierarchy, T-bills are considered virtually zero-risk for default. The government will always meet its local currency obligations because it can issue new treasury instruments or print local currency to settle them.

Yield and Tax-Efficiency Analysis

Sovereign debt and bank deposits are taxed similarly but yield vastly different returns. Both bank fixed deposit interest and Treasury Bill interest are subject to a 15% withholding tax, which is a final tax.

To compare options, always calculate the Net Yield:

$\text{Net Yield} = \text{Gross Yield} \times (1 - \text{Withholding Tax})$

For example, if a bank offers a corporate fixed deposit rate of 9% and a 91-day Treasury Bill yields 15.5%:

• Bank Fixed Deposit Net Yield: $9.0\% \times (1 - 0.15) = 7.65\%$
• 91-Day Treasury Bill Net Yield: $15.5\% \times (1 - 0.15) = 13.175\%$

On a placement of KSh 10,000,000, the interest earned over 91 days under both scenarios is:

• Bank Fixed Deposit Interest: $\text{KSh 10,000,000} \times 7.65\% \times \frac{91}{365} \approx \text{KSh 190,725}$
• 91-Day Treasury Bill Interest: $\text{KSh 10,000,000} \times 13.175\% \times \frac{91}{365} \approx \text{KSh 328,472}$

Net Savings: By shifting KSh 10 million from a bank fixed deposit to a 91-day T-bill, the business earns an additional KSh 137,747 in net interest over just three months, while lowering its credit risk.

Placement Options Compared

Liquidity, Secondary Markets, and Collateral

A common objection to Treasury Bills is that they lack flexibility. However, T-bills offer unique liquidity advantages that are often superior to bank deposits:

• Breaking Penalties: If you need to access cash from a bank fixed deposit before the agreed maturity date, the bank will charge a "break fee" and typically forfeit all or most of the interest accrued.
• Secondary Market Discounting: If you need to liquidate a Treasury Bill before maturity, you can request the Central Bank of Kenya to "discount" it, or sell it on the secondary market via DhowCSD. While you may experience a small capital adjustment based on current interest rates, you do not lose your accrued yield.
• Collateral for Credit Lines: Treasury Bills are highly liquid cash equivalents. Most commercial banks will allow you to pledge your T-bills as collateral to secure an overdraft facility or a working capital loan at very low margins (often base rate plus 1%), allowing you to access cash without breaking the interest-bearing investment.

Decision Framework

To determine where to place your business cash:

1. Identify your cash-flow horizon. Do you need the money in less than 90 days for raw materials or tax obligations? Keep it in a Money Market Fund or call deposit.
2. Evaluate bank credit risk. If placing amounts above the KES 500,000 deposit insurance limit (KDIC protection) with a small Tier-3 bank, sovereign T-bills are significantly safer.
3. Compare rates. If your relationship manager at a Tier-1 bank cannot match or get within 2% of the active 91-day T-bill yield, route the funds to DhowCSD.

Related Reading

• The Future of MMFs & Double-Digit Fixed Yields in Kenya. Where to hold the liquid buffer that keeps you from ever needing a distressed loan.
• Kenyan Treasury Bonds Demystified: Building an IFB Ladder in 2026. How to structure a tax-efficient long-term bond portfolio.
• Sovereign Debt Explained: Bids, Bills, and Bonds in Kenya. Understand the mechanics of Treasury auction processes and interest cycles.

Confidence Note & Compliance

Confidence Note: Documented. The yields referenced are based on active Central Bank of Kenya T-bill auction results and average commercial bank deposit rates for the current quarter.

Bengula View: Corporate treasury is often treated as a passive admin task. However, for a business holding KES 10 million in average working capital, shifting from zero-interest checking to T-bills earns over KES 1.2 million a year in low-risk interest. This cash directly funds operations and covers payroll.