How Service Businesses Can Master Working Capital for Sustainable Growth

Growing business growth graph with upward trend arrow and dollar sign symbol representing sustainable capital and investment growth.
14–22 minutes

Growing a service business requires more than talent and hustle—it demands careful financial management, especially when it comes to cash flow and capital. While most service businesses aren’t capital-intensive, many still struggle to fund their growth. That’s because one of the most overlooked barriers to scale is working capital: the cash you need on hand to operate while waiting to get paid.

At Sidecar Capital Partners, we work with owners of growing service businesses who are sometimes constrained by working capital challenges. This post explores why that happens, what traps to avoid, and how business leaders and investors can better manage working capital to support sustainable, profitable growth.

Working capital management is particularly important for small businesses. In a 2019 survey of Canadian small and medium-sized businesses (SMBs), operating more efficiently was reported as the #1 reason they pursued expansion plans.

Read ahead if you’re interested in:

  1. The role of working capital in service businesses
  2. Why working capital management is about balance
  3. How working capital needs hinder service business growth
  4. Ten working capital traps that can prevent you from growing your service business
  5. Why trust is vital to managing working capital

Working capital isn’t just about financial metrics—it’s about how businesses manage their key relationships. Most of all, great working capital management ultimately comes down to trust.

By understanding the principles in this post, your business can develop strategies and tactics to avoid the common pitfalls others encounter and achieve enduring growth.

What is Working Capital?

Working capital is the money a business needs to keep running every day. Consider what it’s like to have gas in your car. Just as a car with enough gas in the tank can get to its destination, a business with enough working capital has enough money set aside for day-to-day operations. It can pay employees on time and fulfil its obligations to customers and clients.

Working capital isn’t just a concept. It’s a calculation that helps determine how much money a business has for its daily operations. It’s calculated by taking the short-term assets (money a company has or will have soon) and subtracting the short-term liabilities (money a business owes soon).

The first step is to determine the amount of assets currently in the business that can be used to fund operations. But you can’t just look at the cash in a company’s bank account. Working capital includes other assets, too:

  • Inventory – wealth that is tied up in products waiting to be sold to customers
  • Accounts receivable – credit extended to customers or clients who owe the company money for goods and services
  • Short-term investments, like money market funds, which can be quickly turned into cash

These assets – cash, inventory, accounts receivable and short-term investments – are called current assets because they can be used for various business operations within a relatively short period (less than a year).

The next step is determining the amount of liabilities the business must pay for in the short term. These are called current liabilities, and they consist of items such as:

  • Accounts payable – money a business owes to its suppliers or vendors
  • Short-term debt – for example, loans due within a year
  • Accrued expenses – such as wages, utilities or taxes that the company owes
  • Deferred revenue – money the company has received for services or goods that it hasn’t yet provided

Working capital is the number you get when you take a business’s current assets and subtract its current liabilities. Having lots of working capital is like a financial cushion, allowing a business to keep day-to-day operations humming.

While it might sound good to have lots of working capital, the ideal situation is to not need much of it in the first place. Going back to our car analogy, not needing a lot of working capital is like owning a fuel-efficient car or even an electric car that doesn’t require gas at all.

You can’t use money tied up in working capital to invest in growth opportunities, pay your employees better or distribute to business owners. It’s stuck. In contrast, businesses that don’t need a lot of working capital tend to have more money available for these valuable activities.

Working capital management is about balance. Too much working capital causes your business to stagnate and run inefficiently. Too little, and you get compromised operations, client and customer dissatisfaction and unacceptable business risks. Companies that manage working capital well have the agility to sustain operations, pursue opportunities, and navigate the financial ebb and flow inherent to all businesses.

That’s why effective business leaders always ensure they have enough working capital, while constantly trying to reduce their need for it.

Why Does Working Capital Matter to Service Businesses?

People usually think of working capital in the context of capital-intensive businesses, like manufacturers churning out products or retail stores with stock-filled aisles. But, working capital is also critical in so-called “capital light” service businesses. Businesses like marketing agencies, infrastructure maintenance providers or consulting firms often need working capital to keep the lights on and pay the bills.

For example, consider a boutique consulting firm specializing in digital transformation projects for medium-sized enterprises. At first glance, this might seem like a business that only requires a little working capital, as there’s no inventory to purchase or store. Without funds tied up in inventory, one might assume the firm could easily use excess cash to fuel profitable growth. However, many boutique consulting firms are consistently short of cash due to the ongoing challenge of balancing incoming client payments with the need to pay employee salaries.

Take, for instance, the case of “TechAdapt Solutions,” a hypothetical boutique consulting firm. TechAdapt lands a big project with a new client – a six-month engagement to revolutionize the client’s data management systems. The contract is valued at $500,000, with payments scheduled upon the completion of project milestones: 20% upfront, 40% at the three-month mark, and the remaining 40% upon project completion.

TechAdapt could face a working capital shortage despite the lucrative contract if it doesn’t set aside money before the project starts. The project requires hiring two additional consultants and buying specialized software, so TechAdapt incurs new costs. The initial payment from the client helps cover the immediate costs, but as the project progresses, TechAdapt continues incurring the new payroll and software expenses before the next milestone payment. As a result, the gap between spending for project execution and the next milestone payment widens. So, to keep things running smoothly during the project, TechAdapt needs significant working capital to cover its new costs while it waits for the client’s next payment.

Something to keep in mind: The need for working capital isn’t about how much profit the contract makes. Even if TechAdapt’s total cost to deliver on the new client’s project is $250,000, giving TechAdapt a solid 50% gross margin, it still doesn’t fix the working capital problem. The working capital issue is all about timing, not profitability.

This scenario exemplifies how even a service-based, ‘capital light’ business like TechAdapt may require significant working capital to sustain operations. Despite the absence of traditional inventory, the firm must set aside money to cover operational costs between client payments.

But it’s not just consulting firms that have this working capital issue. Many service businesses are in the same situation. For example, an infrastructure maintenance business might need additional technicians to fulfill its service level agreements, incurring upfront costs before they can bill customers. Similarly, a business process outsourcing firm might need significant upfront work in onboarding and training before it can start billing for services. Understanding working capital in this light reveals its importance not just in inventory-heavy industries but also in service businesses.


So far, we’ve:

  • Described working capital and how it applies to service businesses
  • Established that working capital management is about balance, which is why effective leaders make sure they have enough working capital while constantly reducing their need for it
  • Explained why many service businesses have significant working capital needs, even when they don’t have tangible assets like inventory

In the following section, we’ll cover how working capital needs are often a barrier to service business growth. We’ll explore ten working capital traps that can slow your business, ranging from disorganized accounts receivable management to inconsistent revenue streams and inflexible workforce management.


10 Working Capital Traps for Your Service Business

To illustrate how working capital needs can hinder business growth, let’s go back to TechAdapt Solutions, our hypothetical consulting firm.

The working capital challenge at TechAdapt Solutions illustrates a critical barrier to growth many service businesses face. TechAdapt constantly needs a reserve of funds for new projects because a big chunk of the payments for their services comes after they pay for the resources. What happens when two or three client projects come in simultaneously?

TechAdapt must either increase its working capital or turn down the projects. And since SMB service businesses like TechAdapt lack access to growth capital, they inevitably pass on potentially lucrative opportunities.

This growth challenge is common in service businesses whenever they have to pay for things before they get paid themselves. This cycle of spending money to provide a service and then waiting to get paid can stop business leaders from taking on new work and growing. Even though businesses that don’t need a lot of physical assets might not initially expect this issue, growth ultimately reveals it. The wait for payments while facing immediate costs can create a roadblock that can seriously slow down business expansion.

Digging deeper, there are many traps that service businesses can fall into which increase their need for working capital and hinder their growth plans. Here are ten working capital traps that can slow service business growth.

By understanding these traps, you can start to develop strategies and tactics to address them.

Disorganized Accounts Receivable Management

Cash flow suffers when businesses don’t effectively track or collect payments owed by clients or customers. This mismanagement means money that should be available for new opportunities or emergencies is tied up. Slow payments for services or inefficient billing processes can significantly extend the time between when a business pays to do the work and when it gets paid to do it, increasing reliance on working capital to bridge the gap.

Deferred Payment Terms with Clients

Managing accounts receivable helps you deal with customers and clients who owe you money. But what if they don’t owe you the money at all?

Many companies allow customers and clients to pay significantly later than when these companies incur costs associated with providing services. It’s written in their service contracts.

Payment terms that don’t align with your cash flow needs can create working capital shortages. If payment terms are too lenient, businesses may find themselves providing costly services long before they see any money. This delay forces them to use working capital to cover ongoing expenses, limiting their ability to take on new projects or invest in growth opportunities.

Upfront Service Costs

Taking on new clients or customers may require upfront investments in materials, technology, or additional staff. Waiting for project milestones to recover costs can strain working capital. Service businesses, therefore, need to either manage upfront costs carefully to avoid depleting their reserves or accelerate the timing of payments from clients and customers.

Onboarding and Intake Expenses

The initial stages of client or customer engagement, including consultations, planning, and setting up resources, are often time-consuming and may not generate any revenue. These expenses can add up, especially for businesses that provide highly customized services, requiring them to dip into their working capital to cover these costs until the services generate revenue.

Streamlining intake and onboarding processes can significantly reduce upfront costs, thereby conserving working capital and promoting a healthier cash flow for the business.

Inconsistent Revenue Streams

Service businesses, especially project-based ones, can experience significant revenue fluctuations. Periods of high income followed by slower times can make it difficult to manage working capital effectively. Businesses with inconsistent revenue streams require more working capital planning and must focus more on reducing other working capital growth traps.

I previously wrote about combining project-based and recurring services to grow your business, improve profitability, and develop better relationships. Check out the article if you haven’t read it already.

Revenue Concentration

Relying on a few big clients or customers for the majority of revenue can lead to a higher working capital requirement. If one of them delays payment or uses its negotiating leverage to obtain more favourable payment terms, the business may need to keep more money tied up in working capital.

Inadequate Cash-Flow Forecasting

Not having a precise forecast of cash coming in and going out makes it hard for businesses to know exactly how much working capital they need. This uncertainty can lead businesses to hold on to more cash than necessary just to be safe. Effective forecasting allows a business to balance its cash flow, ensuring it has enough working capital to meet its needs without overcompensating.

Growing Too Fast

Rapid growth can be exciting, but it also increases the need for working capital. Expanding operations, hiring staff, and taking on more projects can quickly deplete available funds if not managed carefully. Without enough working capital, businesses may struggle to sustain their growth or meet existing obligations.

There’s an important exception to this point: Rapid growth increases working capital needs if a business depends on working capital to function in the first place. However, some businesses are in an enviable position to sustain negative working capital. These businesses have current liabilities that exceed their current assets, yet they still operate smoothly. Their clients and customers pay them earlier, and they pay their suppliers and vendors later. They tend to use less financial debt because their clients and customers effectively fuel their expansion. Rapid growth leads to even lower (more negative) working capital requirements for these businesses.

Inflexible Workforce Management

The inability to scale the workforce up or down based on current demand can trap working capital unnecessarily. Fixed staffing levels that reflect a business’ workload one day may prove excessive when business slows down. As a result, service businesses often need to pay salaries without corresponding revenue during downtimes. Otherwise, they risk turning down work in the future because the necessary staff aren’t available.

One way to improve workforce flexibility is to form strategic partnerships, which was explored in this section of The Guide to Growing Professional Services. No matter what type of service business you’re in – professional services, field services, business administration services, or any other – strategic partnerships can effectively enhance workforce flexibility and decrease working capital requirements.

Supplier Concentration

Relying heavily on one supplier or failing to negotiate better terms can increase business costs. If that supplier raises prices or has supply issues, you might need to allocate more cash to cover these costs, affecting your working capital.

For example, if a field service business depends on a small number of suppliers for all its necessary equipment, a sudden price hike or supply chain disruption could force the business to spend more money to cover these unexpected costs, which means they’d need more working capital. The business could think about using more equipment suppliers and negotiating better deals with their current suppliers to keep costs predictable, which would lower the amount of working capital they need.

Trust and Working Capital Management

Any discussion about working capital management requires considering the trust you’ve established with customers, clients, suppliers, and vendors.

Why? Because working capital management often entails persuading clients or customers to pay you earlier and suppliers and vendors to accept payments later. You can’t do these things unless your key stakeholders trust you and your business.

Sure, if you’re improving your process for accounts receivable or cash flow forecasting, you can make lots of headway. This type of operational hygiene is table stakes. But if you want your business to master working capital management – potentially even sustaining negative working capital – you need trusted relationships.

If your business has a history of delivering on its promises for many years, you’ve likely built a solid foundation of trust, and you’re ready to leverage your business relationships to make your growth more efficient. If that’s not the case – either because you’re new to your industry or for other reasons – I’d suggest building a reputation and track record before spending too much time trying to improve payment terms.

Retaining trust takes a lot of work. As the saying goes, trust is like a bucket of water that you fill one drop at a time; it takes a long time to fill but can empty instantly. The leaders who are most effective at managing working capital keep this in mind constantly.

Working capital management requires hard conversations. You’re asking people to make compromises, however modest. But here’s the good news: If you do it right, you’ll actually increase trust.

One of the most significant barriers to improving working capital is that business leaders don’t want to upset key business relationships. It can be tempting to believe that maintaining trust requires giving these relationships what they want and not asking for better terms.

But the opposite is true: Trust is built through hard conversations.

First, hard conversations, especially about money, subtly communicate that you’re in it for the long term. You’re prioritizing the financial health of your company, which provides confidence in your ability to manage the inevitable ups and downs of longstanding business relationships. The best customers, clients, suppliers and vendors want your business to reinvest in better services and maintain financial stability. They view you as a long-term partner and want you to be around for a long time. Engaging on payment terms can show them you’re serious about building a great company.

Second, improving working capital terms helps your reputation among stakeholders. Chances are your clients and customers talk to each other. If you can successfully transition your payment terms to reduce your working capital needs, you demonstrate that you’re a trusted party to all of your stakeholders. Trust is cumulative – building it with one person helps you build it with others. Each successful conversation is like reinforcing a brick in a wall – it makes that brick more secure and supports all the others.

Finally, if you can engage in hard conversations while maintaining honesty and kindness, people will trust you more, not less. This benefit extends beyond improving your working capital because hard conversations are not limited to financial discussions. They are critical to addressing performance issues, negotiating services, and navigating organizational changes. As you discuss payment terms with stakeholders, they’ll probably share constructive criticism about your business. Maintaining relationships through these conversations deepens trust, not the other way around.

Navigating the Future: Strategic Working Capital Management

As we’ve journeyed from individual stories to the broader challenges of managing working capital in service businesses, one thing stands clear: effective working capital management is essential for sustainable growth, regardless of your sector. Whether it’s a chiropractic practice, a consultancy, or any service business, working capital can determine not just day-to-day operations but the company’s strategic direction.

The balance of working capital is a tightrope walk—too much and you can’t grow efficiently; too little, and you risk the heartbeat of your business operation. It’s about more than just numbers; it’s about making strategic choices that align with your long-term vision and operational realities.

Our exploration of ten working capital traps provides examples of why service businesses run into working capital issues. Understanding these issues can help you develop strategies and tactics to resolve them and unleash growth. These pitfalls remind us that foresight, planning, and management precision are not optional—they are vital. They also remind us that cultivating trust within your network is a strategic asset.

Managing working capital demands vigilance, adaptability, and a proactive stance towards financial management. By learning how working capital affects service businesses, you can not only navigate the complexities of growth but thrive, turning potential obstacles into opportunities for expansion and success. The journey of working capital management is one of continuous improvement and strategic foresight. Embrace it, and watch your business reach new heights.

Sidecar Capital Partners helps service business owners navigate and fund growth. If working capital is slowing you down, we’re happy to help you think through options—financial or operational—to move forward.

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At Sidecar Capital Partners, we partner with leaders of service-based SMBs in Canada to build exceptional, enduring companies. We provide growth capital and strategic support to businesses ready to scale, whether that’s facilitating growth initiatives, shareholder liquidity, or strategic acquisitions.

  • Life Stage: 4+ years in operation, with existing leadership staying on to drive the next chapter
  • Geography: Headquartered in Canada.
  • Financials: $5M–$15M in revenue
  • Model: High recurring revenue and mission-critical services

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