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Treasury & Cash Management

Why Keeping Surplus Cash in the Bank Is Not the Best Strategy

January 21, 2026 · Avanor Consulting Services

Most businesses feel comfortable keeping surplus cash in bank deposits earning 4–5%. On the surface, this feels sensible. The balance grows steadily. There is no volatility. The money feels safe.

The problem is not that 4–5% is bad. The problem is that bank interest is often the wrong answer for the wrong type of cash. Bank deposits solve only one issue: nominal safety. They do not protect purchasing power, they ignore opportunity cost, and they rarely match the actual time horizon of surplus cash.

Why Idle Cash Still Loses Value, Even With Interest

The cost of idle or near-idle cash is rarely visible. Consider a business holding AED 10 million that is not required for the next 2–3 years. Keeping it fully in bank deposits avoids short-term volatility, but it also locks the business into low real returns — the cash does not compound meaningfully over time.

This is not about chasing markets or making aggressive bets. It is about recognizing that doing nothing with surplus cash is still a financial decision, and usually an inefficient one.

The Real Mistake: Treating All Cash the Same

Many companies do not clearly separate their cash by purpose. In reality, businesses hold different types of cash: cash required for payroll and vendors, cash set aside for taxes and contingencies, and cash that will not be needed for 12 to 36 months.

When all cash is treated the same way, it becomes over-protected and under-utilized. Treasury is not about maximizing returns — it is about matching cash with its purpose and time horizon.

How Surplus AED Cash Can Be Deployed More Intelligently

A practical treasury framework usually looks like this:

Cash needed immediately (0–3 months)

Bank accounts and short-term deposits. Focus: certainty and liquidity.

Cash not needed for 3–12 months

Money market funds, government T-bills, short-duration bond funds. Focus: capital preservation with better risk-adjusted returns than idle cash.

Cash not needed for 12 months or more

Conservative equity ETFs, balanced or low-volatility funds, gradual and capped equity allocation. Focus: beating inflation and allowing purchasing power to compound.

Equity allocation here is not speculation. It is simply aligning long-term surplus with long-term instruments.

Why Relying Only on Bank Deposits Is Inefficient

Bank deposits are a parking solution. They are not a treasury strategy. Over longer periods, inflation quietly erodes purchasing power, compounding is sacrificed, and balance sheets grow slower than they should. The cost is subtle, which is why it is often ignored — over time, it becomes material.

Why Treasury Is Hard for Mid-Sized Businesses

For many growing businesses, a full-time treasury hire is expensive, treasury decisions are periodic rather than daily, and investment governance still needs structure and review. The result is usually one of two outcomes: no formal treasury framework, or ad-hoc decisions driven by comfort rather than logic.

Why Outsourced Treasury Works Better

An outsourced treasury model offers a clear surplus cash framework, defined investment boundaries, independent discipline and objectivity, and periodic review without fixed headcount cost. Treasury does not need a large team — it needs structure, rules, and accountability.

Where Avanor Fits

Avanor works with growing and mid-sized businesses to design practical treasury frameworks, helping businesses decide how much cash to keep liquid, how much can be deployed, and where it can be deployed responsibly — all without increasing operational risk or balance-sheet stress.

The objective is simple: protect purchasing power today and allow surplus capital to compound sensibly over time.

Not sure how your surplus cash should be working?

Talk to us about building a treasury framework that fits your business.

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