Cash Runway: What it is, why it matters and how to calculate and track it + tips to help you extend it

Just as a pilot needs enough runway to land their aircraft safely, a startup CXO, too, needs enough runway to ensure the safe landing of their business. Understanding your cash runway gives you a fair idea of how long you can keep the business up and running before you run out of cash quite literally. 

Whether you're scaling, navigating unexpected market trends, experiencing sudden financial challenges, or looking for new investors—knowing your runway enables you to make more strategic and informed business decisions. 

This article discusses the importance of cash runway and how to calculate it for SaaS businesses (including common pain points). It also discusses ways to extend your cash runway, along with the role of technology in tracking and measuring this metric.

Common (and potentially painful) pitfalls in calculating cash runway

Here are some common mistakes to avoid when calculating cash runway: 

• Underestimating expenses: Companies often overlook hidden costs like minor subscriptions, salary raises, inflation-related cost hikes, etc. This is one of the major reasons for incorrect runway calculations. Further, even the most carefully planned budgets can get derailed due to unforeseen expenses. Unexpected market changes might require rapid pivots, and economic downturns can necessitate increased spending.
• Overestimating revenue: Another mistake startups make is that they often get carried away with their revenue projections. Accounting for only best-case scenarios in scenario planning, overlooking the impact of seasonality, or not factoring in churn rates are some of the common mistakes SaaS companies should be wary of. 
• Reporting cash inflows and outflows: Calculating cash outlays can be challenging for SaaS companies. There are situations where expenses are paid upfront but recognized over time. Similarly, there are deferred revenue scenarios where cash is received in advance, but revenue is recognized incrementally.  
• Not accounting for fundraising timelines: Another common oversight in runway calculations is not accounting for the time it takes to raise additional funding. This mistake often involves underestimating the length of the fundraising process, which can typically take 6-9 months, at least, from initial outreach to closing.

Tips for extending your cash runway

Here are some tips that can help SaaS business leaders extend their financial lifeline. 

1. Boost revenue

There are many ways to generate additional revenue. One way is to strategically prioritize product features that can drive immediate revenue or expand the customer base. Other ways could be considering upselling opportunities or exploring new partnerships. 

2. Tighten up the receivables and collections process

By improving the speed and efficiency of collecting payments, you can ensure a steadier cash flow and, thus, a longer runway. Encourage upfront payments and implement automated billing systems to collect payments faster. 

3. Don't automatically fill vacant positions

By not automatically filling positions and using zero-based budgeting to evaluate whether a backfill is truly needed, companies can reduce unnecessary costs, thus extending their cash runway. 

4. Optimize working capital

Managing working capital by cutting unnecessary expenses, reducing customer churn, and shortening sales cycles to the extent possible, can free up cash and extend the runway. 

A 13-week cash flow forecast is one of the most effective tools for doing this because it offers a week-by-week view of inflows and outflows, making it easy to spot exactly where working capital is being tied up and when.

5. Cut unnecessary costs

Identifying and eliminating non-essential expenses can help extend the cash runway. Finance teams can utilize cash flow forecasting tools to forecast future expenses and revenues and also identify opportunities to reduce costs. 

6. Turn recurring revenue into extra runway

Recurring revenue can be turned into extra runway by offering discounts for annual or multi-year contracts paid upfront or using forecasted recurring revenue to negotiate better terms with suppliers or lenders.

7. Leverage customer intelligence

You can use business analytics to gain insights into your customers' behavior, preferences, and usage patterns, and devise strategies to make your cash go further. These include  usage-based pricing, hybrid pricing, annual upfront payments, and multi-year contracts.

What you stand to gain with a longer cash runway 

A longer cash runway allows you to operate without raising more capital. It gives companies the flexibility to: 

• Focus on growth initiatives: If there is no pressure of immediate fundraising, companies can focus on what really matters, i.e. improving product features, expanding their customer base, or entering new markets. A company with a longer runway is also positioned to be more attractive for potential partnerships. 
• Withstand market fluctuations: A longer cash runway acts as a buffer during economic downturns or industry slowdowns. 
• Manage strategic investments: Extra financial cushion allows teams to make informed decisions around capital investments, sales capacity planning, and tech stack. 
• Streamline operations: An extended cash runway ensures SaaS businesses can operate without any stress of needing to raise more money. 

Track and measure your cash runway with Drivetrain 

Cash runway shows how long a VC-backed SaaS company stays in business, given its current monthly expenditures. Monitoring cash runway helps business leaders understand their financial health and determine the next round of funding required. 

The runway for SaaS startups is often a moving target. To calculate it correctly, you need the right kind of SaaS financial planning software.

Drivetrain is a strategic financial planning and analysis software that seamlessly integrates with and consolidates data from all your systems and apps, including CRMs, ERPs, and HRIS, to accurately calculate all your cash inflows and outflows. 

Drivetrain is powerful yet simple to use. With its user-friendly platform, you can access and analyze all the data regarding your business’ financial health and performance, and generate insights to make strategic business decisions. 

Further, it offers the familiarity of spreadsheets, combined with plain English formulas, for easier calculations—but without the pain of manual errors and unwieldy spreadsheet models. Drivetrain helps you track and measure all the key metrics related to your cash runway and allows you to perform multiple what-if scenarios to arrive at the most feasible financial and cash flow forecasts. 

Learn more about how Drivetrain can help you better manage your cash flows and gain control over your financial projections.