Business Investment

The Silent Killer of Business Growth: Idle Cash (And What to Do About It)

When “Playing It Safe” Becomes the Risk

Your business has healthy revenues, solid margins, and cash piling up in the bank. That’s a good thing, until it isn’t.

Across Africa, thousands of high-growth businesses are quietly bleeding value. Not because of poor strategy or weak execution, but because of idle cash: money sitting unproductively in accounts, eroded by inflation and detached from your growth engine.

Idle Cash in Context

What Is Idle Cash?

Idle cash is money not generating returns, not driving operational or strategic value, and not reserved for near-term expenses. It often sits in current or low-yield savings accounts “just in case.”

While a liquidity buffer is essential, excessive idle cash creates drag, especially in high-inflation environments like Nigeria.

The Liquidity–Yield Tradeoff

Managing business cash involves choosing your place on this spectrum:

StrategyLiquidityYieldUse Case
Current AccountHigh0–2%Day-to-day operations
Savings AccountHigh2–5%Emergency buffer
Money Market FundsMedium10–13%Optimizing reserves
Treasury BillsMedium-Low11–14%Short-term holding
Corporate BondsLow13–17%Medium-term investment
R&D / ExpansionNoneVariableStrategic growth

Your cash shouldn’t all sit at one end. It should be strategically distributed based on operating needs, growth stage, and risk appetite.

When Holding Cash Is the Right Move

Excess cash isn’t always bad. Some businesses need bigger buffers:

  • Retailers managing inventory fluctuations
  • Startups prepping for a fundraise
  • Manufacturers with long receivables cycles
  • Businesses operating in volatile FX environments

However, even in these cases, a portion of surplus cash can be optimised while retaining core liquidity.

A Simple Framework to Assess Idle Cash

Use this 3-step framework to assess whether your business is holding too much idle cash:

Step 1: Define Your Liquidity Floor

  • Calculate 3–6 months of total operating expenses
  • Add buffers for upcoming obligations (e.g., taxes, payroll spikes)

Step 2: Add Strategic Reserves

  • Consider upcoming launches, M&A, or new hires
  • Factor in industry-specific volatility (e.g., FX, regulatory risk)

Step 3: Compare vs. Reality

If your actual cash exceeds this total by 20% or more and earns <5% return, you’re likely sitting on idle capital.

How Different Industries Should Think About Idle Cash

IndustryRecommended Cash BufferReasoning
SaaS / Tech Startups3–6 monthsBurn rate + agility
Agencies / Services2–4 monthsPredictable receivables
Retail / FMCG4–6 monthsInventory-driven cycles
Manufacturing6–9 monthsCapital-intensive + receivables
Fintech6–12 monthsRegulatory and credit exposure

These are directional, not prescriptive. Your ideal buffer depends on how predictable your revenue is and how fast you can cut costs in a crisis.

Real Consequences of Doing Nothing

Even if idle cash feels safe, it has serious costs:

Inflation Erosion

₦10 million in a 20% inflation environment loses ₦2 million in purchasing power annually.

Missed Growth

That same ₦10M could fund:

  • A new sales team
  • Market expansion
  • R&D or product development

Strategic Lag

Competitors who deploy capital more quickly can outpace you in product, talent, and customer acquisition.

How to Stress-Test Your Cash Strategy

Run these scenarios every quarter with your finance team:

ScenarioWhat to Model
FX CrisisWhat if the naira devalues by 30% in 3 months?
RecessionCan we sustain a 6-month revenue dip?
Regulatory DelayCan we float operations during policy bottlenecks?
Supply Chain ShockCan we fund 90-day inventory delays?

This exercise helps you justify reserve levels and decide when to reallocate excess.

Implementing Cash Optimisation: A Light Checklist

Before deploying idle cash, ask:

Internal Governance

  • Who approves reallocation decisions?
  • Is there a monthly or quarterly cash review process?

Partner Due Diligence

Ask investment providers:

  • Are you SEC-licensed and regulated?
  • Can I see your 3-year audited fund performance?
  • How long is your average redemption timeline?
  • Who manages the fund, and what’s their track record?

Red Flags

  • Promises of guaranteed high returns
  • Lack of transparency on where money is deployed
  • No published fact sheets or history
  • Opaque fund custodianship

Verification

  • Check licenses at sec.gov.ng
  • Ask for third-party audit reports
  • Confirm asset manager affiliations

What About Tax?

Returns on money market or fixed-income investments may be subject to:

  • Withholding tax (typically 10%)
  • Inclusion in your company’s taxable income
  • Capital gains rules depending on asset type and holding period

Before investing, speak to your accountant about:

  • Tax deferral or offset strategies
  • Proper categorization of investment returns
  • If certain instruments qualify for exemptions or deductions

Integrating This with Existing Treasury Ops

Optimisation shouldn’t disrupt your workflow. Here’s how to integrate it:

  • Use investment tools in parallel with your business bank accounts
  • Maintain OPEX and receivables within your core banking setup
  • Automate idle fund sweeps above a threshold (e.g. ₦5M excess)
  • Reconcile returns monthly in your finance dashboard or ERP
  • Schedule reallocation reviews in your treasury calendar

Think of cash optimization as a layer, not a replacement.

Don’t Let Your Balance Sheet Hold You Back

Every naira in your account is a growth asset or a shrinking one.

Idle cash might feel like a cushion, but in a high-inflation, high-opportunity market like Nigeria, it’s often the most expensive kind of safety.

You don’t need to overhaul your entire finance operation. Just start with clarity, cadence, and credible partners.

Cowrywise x ISA 2025

Explore a Trusted Option: Cowrywise Sprout

Sprout is a corporate investment platform built for Nigerian businesses.
It helps you:

  • Invest idle cash in regulated assets
  • Maintain liquidity
  • Monitor returns in real-time
  • Start with as little as ₦100,000

About author
Your favorite advisor
Articles

Leave a Reply

Your email address will not be published. Required fields are marked *