Idle Cash Investment

How to multiply idle cash: Strategies every CFO should know

How to multiply idle cash: Strategies every CFO should know

How to multiply idle cash: Strategies every CFO should know

4 min read

Holding cash reserves is a sign of financial discipline, right up until too much of it sits idle instead of earning. This piece covers four strategies CFOs use to benchmark, segment, and deploy surplus cash without compromising the liquidity a business needs to operate.

Holding cash reserves is a sign of financial discipline, right up until too much of it sits idle instead of earning. This piece covers four strategies CFOs use to benchmark, segment, and deploy surplus cash without compromising the liquidity a business needs to operate.

According to a DBS Bank survey of around 800 finance leaders found that 68% of Indian CFOs prioritize treasury transformation, versus 60% globally. Liquidity and FX management has also risen from seventh to second on their long-term agenda. That shift says something. Indian CFOs aren't just worried about having enough cash anymore. They're increasingly focused on what that cash is actually doing while it sits on the balance sheet.

That's the real question behind this piece. Not "Do we have enough cash," but "How much of it is idle, and what should we be doing about that?"

Why days cash on hand isn't the full picture

Most finance teams track some version of days cash on hand, a simple measure of how long the business could operate on existing cash alone. It's a useful number, and benchmarking data (from groups like APQC in the US) shows real spread even among well-run companies, roughly 70 days at the lower end and 100 or more among top performers.

But a high number here isn't automatically good news. Once a business has comfortably cleared its reserve target, the real question shifts. Is the excess sitting there because it's genuinely needed, or because nobody's made an active decision to put it to work? A strong cash position should create options, not just sit there as a static safety net.

We've gone deeper into how to tell the difference between reserve cash and truly idle cash here: What is idle cash and why should it be avoided?

Strategy 1: Benchmark your target, then question it regularly

Start with a number, whether that's days cash on hand, a cash ratio, or a simple multiple of monthly expenses. But don't treat that target as fixed. What counted as a safe buffer two years ago may not reflect today's borrowing costs, customer payment cycles, or market volatility. A quarterly review of the assumptions behind your target, revenue volatility, collections speed, planned capex, and financing access keeps the number honest instead of becoming a legacy figure nobody questions anymore.

Strategy 2: Separate the buffer from the surplus

Once the target is set, split your cash clearly into what's protecting the business and what's sitting beyond that. A simple structure works well here.

Category

Purpose

Typical action

Operating cash

Day-to-day expenses, payroll

Stays fully liquid

Reserve buffer

Covers the agreed days' cash on hand target

Stays liquid, can sit in something slightly higher-yield

Surplus

Anything comfortably beyond the buffer

Should be actively deployed

The mistake most finance teams make isn't holding too much cash. It's failing to draw this line, so the entire balance gets treated with the same caution as the buffer, even the part that clearly isn't needed.

Strategy 3: Match instruments to the review cycle, not a one-time decision

Deploying surplus shouldn't be a single event. It should follow the same cadence as your cash reviews. For India, that typically means using instruments suited to the time horizon of each portion of surplus: liquid mutual funds for cash you might need within weeks, overnight funds where next-day access matters most.

We've laid out ten practical ways to put surplus to work using instruments like these here: 10 smart ways to earn more on idle cash

Mutual fund investments are subject to market risk. Please read scheme-related documents carefully before investing. Past performance is not indicative of future returns.

Strategy 4: Decide in advance when cash should fund something else

Idle cash doesn't only need a home in short-term instruments. Part of the CFO's job is deciding, ahead of time, when surplus should be redirected toward debt reduction, technology investment, capacity expansion, or acquisitions rather than sitting in any instrument at all. 

Setting these triggers in advance, rather than debating them reactively when the number gets large, keeps decision-making fast instead of delayed by internal back-and-forth every time surplus builds up.

Keeping this a system CFOs actually run, not a project

Most of the work here isn't complicated on its own. Benchmarking, segmenting, deploying, and reassessing are all reasonable to do manually for a while. Where it breaks down is consistency: quarterly reviews get skipped, surplus gets left in the operating account a little longer each time, and eventually the whole exercise needs to be redone from scratch.

This is the exact gap a dedicated treasury and cash platform is built to close, not by replacing the CFO's judgment, but by keeping the visibility and the deployment running continuously in the background.

If that's a conversation worth having for your finance function, KodoNorth is worth a look.

FAQs

1. What's a reasonable days cash on hand target? 

It varies widely by industry and business model, but benchmarking data shows a range from roughly 70 days at the lower end to 100 or more among top performers. The right number for your business depends on your specific risk factors, not just industry averages.

2. How do I know if my cash reserve is actually too high? 

If your balance consistently sits well above your agreed buffer target quarter after quarter, that excess is a strong candidate for deployment rather than continued idle holding.

3. Is deploying surplus cash risky for a CFO to sign off on? 

Instruments like liquid funds and overnight funds carry low risk and high liquidity, but none are entirely risk-free. Matching the instrument to the time horizon of each portion of surplus is what keeps this low-risk in practice.

4. How often should a CFO reassess the cash target? 

Quarterly works well for most businesses, especially where revenue, collections, or financing conditions are changing.



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