Financial literacy
19 min

What is cash flow in business, and why is it important?

Discover what cash flow in business is, its importance, and how to manage it. Learn the differences between cash flow and profit and how to maintain positive cash flow.

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A man working out of his kitchen reviews a cash flow statement for his small business.

In the world of business, only one thing is certain–cash is king. To keep a business going, you need cash on hand. And when you have no cash, your business is likely struggling.

Cash flow is one of the top five challenges for small business owners. Common concerns business owners have include making payroll, distributing profits, and not having enough cash to pay vendors or taxes–all of which can be solved by making sure you have positive cash flow.

Being more proactive and systematic helps the financial health of your business. In this guide, we’ll share everything you need to know about cash flow management and how to approach all the issues that come along with it.

What is cash flow?

Simply put, cash flow is the stream of cash (or cash equivalents) moving in and out of your business over a set period of time. When more cash is coming in than going out, it’s known as positive cash flow. What does negative cash flow mean? That’s basically the flipside; when outgoing cash exceeds incoming cash.

A little bit more about cash flow: Real-life examples

Obviously, businesses need a consistent flow of cash for various reasons. There are suppliers and vendors to pay, rent and utility bills, accountant fees, employee salaries, and much more. But cash flow is much more than just how much cash you have.

Let’s explore what cash flow looks like with a real-world scenario:

Brian owns a car dealership in Seattle. He sells new and used cars, offers financing options, and has a service department. Because he must purchase vehicles before he can sell them, he needs big cash reserves or relies on loans. 

Right now, the market could be better, and people buy new cars less often. This means Brian has an excessive number of unsold cars. As he continues to incur expenses for the purchased inventory but struggles to generate enough sales revenue, he is now facing negative cash flow—meaning he spent more money than he earned.

But wait, Brian is owed some money from customers. As he also provides financing options, he is expecting to receive more money in the next few months—including interest on cars already sold. If the cash expected to come in is higher than what he spent, that means Brian is profitable—even though his cash flow is negative. That’s great news.

What about positive cash flow; what would that look like?

Katy is a franchise owner who operates a branch of “Gourmet Burgers” in Austin. Katy needs to pay monthly fees to the franchisor. These add up, but being a part of a well-known franchise provides an established brand and customer base. This means she has very high sales and a lot of regular customers. So, the fees end up being a small percentage of the total revenue.

She also needs to pay different vendors, rent, other bills, and payroll. By being a part of a franchise, she gets help with the budget. This enables her to keep expenses lower, meaning she has enough cash for other things she needs—like a new coffee machine that recently broke.

This last scenario highlights an important, and perhaps overlooked, aspect of cash flow: positive cash flow means you have enough money not only to pay your day to day expenses but to see the business you’re dreaming of come to life. It means you have extra cash (and peace of mind) to cover unexpected expenses or to innovate, develop, and grow your business.

What is the difference between cash flow and profit?

When it comes to cash flow vs profit:

Profit is what’s left of the business’s revenue after all operating expenses, production costs, taxes, bills, payroll, and other expenses are paid. In other words, profit is revenue minus expenses.

Cash flow, on the other hand, measures all the incoming money (for example sales and investments) and outgoing money (expenses, loan payments, etc.) of a business in a given period. It reflects the business’s liquidity and ability to meet its financial obligations and reinvest in the company. As we’ll see in the next section, cash flow and profit are not always aligned.

Can your business be profitable and have negative cash flow?

Yes. It’s possible to have negative cash flow while being a profitable business, and vice versa. Let’s look at some real-life examples of how this works:

Imagine you’re opening a coffee shop. You take a small business loan from a local bank for $50,000. That loan represents money flowing into the business, producing a positive cash flow. But if you don’t have any customers in your first two months, you’re not generating revenue, which means your profitability is nil. Positive cash flow, without being profitable.

The reverse is also true. Let’s say you sell musical instruments, and most of your customers use the “buy now, pay later” option. You pay $3,000 for a piano, then resell it for $5,000, with the customer paying $2,000 now and $3,000 due in six months. Your cash reserves have actually gone down by $1,000 even though you netted a profit from the sale. If you are asking, what is negative cash flow, this is what it looks like, even while the business is profitable. Keep in mind though, that this scenario is quite rare.

Why is cash flow so important?

Not having enough money to pay vendors or cover payroll is incredibly stressful. That’s the true negative cash flow meaning. However, there is more going on than just immediate expenses and it’s important to consider how much cash a business should have on hand at any given time.

Here are several reasons why cash flow is so important to a business’s short and long-term survival:

  • Operational stability: Positive cash flow means the business can cover day-to-day expenses like payroll, rent, and supplies, without disrupting ongoing operations.
  • Paying off debts: Lack of cash flow increases the risk of a business defaulting on loans or making late repayments, which come with penalties and fees.
  • Investment and growth: Having enough cash on hand enables the business to invest in new equipment, innovate new products, and expand to new markets.
  • Unexpected expenses: Positive cash flow helps keeping the business safe in the event of a market downturn or unplanned crisis.
  • Credit score: Strong cash flow improves credit ratings, making it easier for a business to receive loan approvals.
  • Avoiding insolvency: Even profitable businesses can fail without adequate cash flow to keep operations running.

How can negative cash flow affect a business?

Having sufficient liquid cash on hand to pay vendors and meet financial obligations is absolutely essential. Businesses that fall into negative cash flow and cannot cover expenses and payments are in a very tough spot.

It’s no surprise then that 82% of small businesses that close down say that cash flow issues were the reason. Having a negative cash flow also makes it harder to forecast expenses and prepare for slow months.

Profit alone is not enough, you need positive cash flow to ensure you are keeping your business healthy.

Cash flow management basics

Managing cash flow in a small business takes planning—but it starts with understanding a few key financial concepts.

Before getting into topics such as how to calculate cash flow, here are several important terms you should know moving forward:

  • Capital expenditure: This includes money your business spends on fixed assets, like land, leasehold, or equipment.
  • Depreciation/amortization: Many business assets lose value over time. Depreciation refers to tangible assets such as computers, desks, etc. while amortization refers to intangible assets such as domains and trademarks.
  • Net income: This is the total income left after deducting business expenses from the total revenue. A good way to calculate this is: sales minus cost of goods sold, general expenses, taxes, and interest.
  • Working capital: Working capital is the difference between your assets and liabilities. It represents the capital used in the day-to-day operation of your business.

How to calculate cash flow

There are two different types of cash flow that you’ll need to calculate in order to assess your business’s financial health: free cash flow and operating cash flow.

Free cash flow

This represents the money that remains after paying for things like payroll, rent, and taxes. This is the cash a company can use as it pleases.

A visual diagram illustrating the formula for calculating free cash flow. It shows a sequence of three blocks connected by mathematical symbols.

The first block says:
"Net income + Depreciation / Amortization"

A minus symbol connects it to the second block:
"Change in working capital - Capital expenditure"

An equals sign then leads to the third block:
"Free cash flow"
The design uses a clean layout with rounded white boxes on a light purple background and bold purple math symbols between each step.

Operating cash flow

Operating cash flow indicates whether or not a company can generate sufficient positive cash flow to maintain and grow its operations.

A linear flow diagram depicting the calculation of operating cash flow.

The blocks read, in order:
"Operating income + Depreciation - Taxes + Change in working capital = Operating cash flow"
Each operation is represented with corresponding math symbols in bold purple, and the background is a soft lavender tone. The layout is clean and structured for easy comprehension.

How to prepare a cash flow statement

There are several types of financial statements every business should regularly review to understand its health. A cash flow statement is a financial report that shows how much money is moving in and out of your business during a given period. Using this report, you’ll be able to see how much cash is available to your business.

The main components of a cash flow statement are:

  1. Cash flow from operating activities: This is how much cash is generated from a company’s ongoing operating expenses, such as products or services.
  2. Cash flow from investing activities: These include any sources and uses of cash from investments made by the company for the company. These include purchases or sales of assets like computers or desks for example.
  3. Cash flow from financing activities: This represents the sources of cash from investors and banks, as well as the way cash is paid to shareholders. 

When creating the cash flow statement, here are the steps you need to take: 

  1. Determine the starting balance of cash at the beginning of the reporting period.
  2. Calculate cash flow from operating activities. 
  3. Calculate cash flow from investing activities. 
  4. Calculate cash flow from financing activities.
  5. Determine the closing balance. Take the sum of cash flow from operating, investing, and financing activities to see your change in net cash for a given period.

Forecast expenses and earnings

A cash flow forecast is an estimate of your future sales and expenses. It shows how much money will come in and go out of your business over a particular period. It will also help you understand if you’re going to run out of cash or if you are looking at a cash surplus.

You can use accounting software, like QuickBooks or Xero, to create a cash flow example. You can also use a cash flow app to automate the process and reduce manual errors.

If you aren’t using accounting software, here’s what you need to do: 

  • Decide on your forecasting period: Choose a reporting timeframe that’s easy to predict and that’s correlated with what you want to know. It can be a week, a month, or a year, whatever you prefer.
  • Add up your income: List all the cash coming into your bank account during the forecasting period. This includes sales, tax refunds, interest earned, investments from shareholders or owners, grants, and miscellaneous cash payments.
  • Add up your expenses: List everything you’ll need to pay for during the forecasting period. That includes rent, wages, inventory, loans, fees and charges, marketing and advertising, and tax.
  • Calculate your cash flow: For each week or month, subtract your total expenses from your total income.

Imagine a restaurant business that also provides catering services, and check out the example of a cash flow statement below. Note that while the first three months of the year are predicted to be slow, last year’s profit and investments keep the business at positive cash flow.

A circular flowchart depicting the lifecycle of financial focus areas for a business. The cycle contains four labeled segments arranged clockwise: Revenue – symbolizing income generation. Profitability – highlighting profit margins and cost efficiency. Cash flow – indicating liquidity and timing of inflows/outflows. Growth – representing scaling efforts and business expansion. Each segment is connected with curved arrows forming a loop, suggesting a continuous feedback cycle where each financial aspect impacts the next. The layout is clean, modern, and visually balanced to emphasize the interdependence of the financial components.

Main reasons for cash flow issues

Different industries have different ways of doing things, and therefore, different reasons that cash flow issues may arise. In this section, we’ll cover some of the main issues that affect most of the small businesses in the U.S. right now.

Inflation

When inflation is high, businesses with existing loans suddenly find themselves making larger installments. Higher loan payments mean that businesses may have predicted a certain cash flow, but are now dealing with less available cash on hand.

Supply chain issues

Ongoing disruptions in the supply chain—whether from lack of working hands or price increases across all industries—are leading to a rising cost of goods. This means that downstream businesses have less free cash, making it harder to forecast cash flow.

Growing labor expenses

Labor shortage leads to higher wages and less efficiency. As a result, businesses sometimes fail to deliver products and services to their customers, which can hurt revenue. Meeting those demands comes at a cost: hiring temporary staff or investing in upskilling existing employees.

Inventory management issues

Having too much stock is a problem. The larger your inventory, the less cash you have. Forgotten stock can also lead to cash flow issues down the road. You cannot sell it until you find it, and uncounted stock will continue to burden your cash flow until you do.

What to do when cash flow is negative

There are many reasons your cash flow may be negative but no matter the “why”, we’ll now focus on the “what”. What should you do when you already have a negative cash flow? Keep on reading to find out.

Should I take a loan if my cash flow is negative?

It makes sense that when you lack cash and are wondering how to increase cash flow, the first thing you might think of is taking a loan. And this is definitely one possible solution. However, there are safer steps to take before you resort to that. First, find out why your cash flow is negative. Once you have the answer to that question, the solution will be clearer.

Seek professional advice

Before you make any big decisions, consult a professional expert. An accountant will be able to help you decide how to solve your current issues and how to move forward. Plus, if you do end up taking a loan, an accountant can help you manage the whole process and get the best terms possible.

Cut down your expenses

Reducing expenses is one of the quickest ways to improve cash flow. These simple changes act as cash hacks—tactical shifts that can help you free up working capital quickly. When you spend less on payroll, rent, production, supplies, and other common expenses, the more cash you will have on hand.

This is an immediate step you can take, however, be very careful when cutting down staff. While reducing hires can be a short-term solution, rehiring new employees later may cost more in the long run.

Streamline your payment terms

One of the main causes of negative cash flow is the time gap between delivering a product and getting paid for it. Consider using an online bookkeeping tool to track your accounts receivable more closely, so you make sure to get paid on time. Learning how to manage business money well ensures your receivables process supports—not sabotages—your cash flow.

If customers are late with their payments, an online tool can automatically send them a reminder. This automated approach frees up your time as a business owner to focus on other things.

Line of credit

A line of credit is a preset borrowing limit that can be used at any time, paid back, and borrowed again. A loan is based on the borrower’s specific need while credit lines can be used for any purpose.

In short, a line of credit gives you access to money that you can spend on your business expenses.

Lines of credit vary by industry, but most commercial banks have pretty consistent practices. Businesses can typically borrow up to 75% of their accounts receivable balances that are current.

How to avoid having a negative cash flow

Whether you’re a new or growing business, cash flow is something that should always be managed and taken into account. There are many ways to make sure your company has positive cash flow, and in this section, we’ll cover some of them. Implementing smart cash flow management strategies—from reducing expenses to improving invoicing—can build long-term stability.

For starters, we recommend that you:

Hire an accountant

Accountants are professionals who handle bookkeeping and manage the financial documents you need to run your business. They evaluate financial operations, identify issues, and strategize solutions. They also offer guidance on cost reduction, revenue increase, and maximizing profit and cash flow.

One of an accountant’s main responsibilities is making sure you have enough cash on hand to run your business. And while you focus on other aspects of the business, they will help with the nitty-gritty financial details that you probably don’t have a sufficient understanding of.

Improve inventory management

Effective inventory management lies somewhere between having too much inventory and not enough. There are technical tools to manage your inventory, including some accounting software you may already be using. The first step to better inventory management includes tracking everything coming in and out, alongside their invoice statuses.

Ensure customers pay on time

Most businesses are able to dramatically improve cash flow by focusing on a more proactive and streamlined approach to their customer payment process. No matter the payment type (ie. credit card, cash, check, etc.), making sure you get paid on time can be exhausting and time-consuming.

All too often, you unintentionally damage your own cash flow system by poorly managing your revenue cycle and making it difficult for customers to pay you. Here are a few tips that will guarantee you put cash back into your bank account faster and more efficiently:

Set up an efficient, consistent invoicing schedule

While you ideally want to limit the amount of time between delivering your product/service and invoicing for it, you should make sure to do your invoicing at regular intervals. Schedule a set time each day, week, or month that works best for your business’s billing cycle.

Use an automated billing tool

You may be able to implement an automated billing system to gather recurring payments from customers. Customers will be charged automatically to their credit or debit cards (or via ACH) each month. This is highly efficient and helps ensure you get paid regularly on time.

Ask customers to pay electronically

More customers are moving to electronic payments, due to their ease and convenience. If you haven’t yet jumped on that bandwagon, we recommend you establish a billing system that allows customers to pay digitally. From credit cards to PayPal/Venmo, from ACH to wire, there are a number of modalities that can speed up receipt of cash. Most billing tools today support multiple options.

Establish an escalation process

It occasionally happens that a customer drags their feet when paying their invoices. You need a plan for dealing with these uncomfortable situations. 

One of the biggest mistakes you can make is waiting too long to communicate and then doing so in an overly aggressive manner. Start early by being friendly, helpful, and seeking to understand (honestly) why your customer is slow to pay.

Get paid by ACH bank transfer

When using Melio to receive business payments, you can get paid directly into your bank account. Instead of dealing with old-fashioned cash or paper checks (which have the highest risk of fraud), you get peace of mind knowing the payment will go where it needs to. You can also track every invoice from the minute it’s generated.

Have a credit policy

A credit policy is a document that sets payment terms for customers. In industries where payment is made in several stages (ie. construction), a credit policy can be as important as insurance.

It’s wise to create incentives for early payments, limit the amount and time for payments on specific accounts, and create a procedure for dealing with delayed payments.

Use contracts

Always work with written contracts. Make sure the payment terms you give clients are shorter than the terms you have with your vendors. Add a clause for price increases of materials and certain delays.

Make sure you pay on time

Late payments often carry late fees. To avoid them, make sure you pay your bills on time. Some vendors even give discounts for early payments.

To make paying on time a regular habit, it is recommended to:

Use an online bill pay tool

With an online bill pay solution, you can reduce the time spent paying the bills and be sure all payments go out right on time.

Things to consider when choosing a bill pay tool:

  1. Customer interface: You’ll want the ability to just take a photo of an invoice, upload a file, or enter details directly.
  2. Ability to select a payment method: The ability to pay with ACH bank transfer, debit, or credit card gives you more flexibility.
  3. Group or split invoices: Can the platform facilitate combining multiple bills into one or splitting bills into installments? 
  4. International payments: Does the platform support payments to foreign countries your vendors work from?
  5. Workflow capabilities: It should include user roles and permissions.

Pay upfront

Leverage upfront payment to negotiate better prices from vendors. You may save significant costs by paying immediately.

Pay with a credit card

This allows you to defer payments and buy more time. Your vendors get paid on time, while the payment is deducted at the end of your next billing cycle. This tactic is known as credit card float—a way to extend your cash reserves without delaying vendor payments. If your vendors want a check or bank transfer, Melio allows you to pay with a credit card while sending the payment to the vendor in the format they prefer.

Buy now, pay later

Some vendors allow you to buy products now and pay for them later. If this is a common practice in your industry, you may want to take advantage so you can keep more cash on hand. 

Cash flow health = your business health

Once you understand your cash flow weak spots, it’ll be easier to figure out how to solve those issues, and how to avoid them. The key is to stay on top of your cash flow status at all times. Once you’ve identified where cash tends to bottleneck, you can put systems in place for how to maximize cash flow and fuel business growth.

With the tips and strategies above, you can turn negative cash flow into positive, and make your business more efficient and resilient.

*This guide is intended for informational purposes only and is not intended as financial advice.
**Melio does not provide legal, tax or accounting advice, and you should consult with a professional advisor before making any financial decisions.