Working Capital Explained: Why It Matters and How to Improve It
Working capital is the short-term money tied up in your business that keeps it moving day to day. It helps you pay bills, pay yourself, buy stock, finish work for customers, deal with suppliers and keep the business running. If your working capital is weak, even a profitable business can run into cash flow problems.
About this episode
Why Working Capital is Important for Your Business is episode 52 of the I Hate Numbers podcast. This anniversary episode focuses on one of the most practical parts of business finance: having enough short-term funds to keep going.
We explain what working capital is, how to calculate it, why it matters, and what you can do to improve it. We also look at the money tied up in inventory, unpaid customer accounts and cash, alongside short-term debts such as supplier bills and overdrafts.
If you want a wider foundation first, our episode on Understanding Your Financial Statements: Cash Flow, Profit and Balance Sheet is a useful starting point.
Why working capital matters
Working capital matters because it is the fuel in your business. A car may be beautifully built, but without fuel it will not move. Your business works in a similar way.
You may have customers, products, services and profits, but if cash is trapped in unpaid invoices, unfinished work or slow-moving stock, you may not have enough money available when bills arrive.
That is why profit alone does not guarantee survival. A profitable business can still struggle if it cannot turn work, stock and customer accounts into cash quickly enough.
Key points from this episode
What is working capital?
Working capital is the difference between your short-term assets and your short-term debts.
Your short-term assets are things you expect to turn into cash relatively soon. These include inventory, receivables and cash. In older accounting language, these may be called stock, debtors and cash.
Your short-term debts are amounts that need to be paid soon. These include supplier bills, overdrafts and other short-term obligations. In older language, these may be called creditors.
How to calculate working capital
The basic working capital calculation is:
Working capital = current assets minus current liabilities
Current assets include cash, unpaid customer invoices and inventory. Current liabilities include supplier bills, overdrafts and short-term debts.
Ideally, your business should have more current assets than current liabilities. A positive working capital position gives you more room to pay bills, deal with timing gaps and keep the business moving.
Current assets: inventory, receivables and cash
Current assets are the short-term items in your business that should ultimately become cash.
Inventory includes stock, products ready for sale, partly completed goods and work in progress. Service businesses can also have inventory when work has started but has not yet been completed or billed.
Receivables are unpaid customer accounts. If you have invoiced customers and are waiting for payment, that money is tied up until it reaches your bank account.
Cash is the money already available in your bank account or cash tin. It is the most liquid part of working capital because it can be used immediately.
Current liabilities: supplier bills and short-term debt
Current liabilities are short-term debts your business needs to pay. These can include unpaid supplier bills, overdrafts, short-term loans and other amounts due soon.
These debts matter because they create pressure on cash. If suppliers, lenders or HMRC need paying before your customers pay you, your business can feel the squeeze.
Looking at current assets and current liabilities together helps you see whether the business has enough short-term strength to operate safely.
Why inventory can create cash pressure
Inventory can be useful, but it can also trap cash. If too much money is tied up in stock, unfinished products or work in progress, it may not be available to pay bills.
For service businesses, work in progress matters too. If work is partly complete but not yet billed, time and cost may already have been spent without cash coming in.
One way to improve this is to shorten the time between starting work, completing the job, billing the customer and collecting the money.
Receivables and getting paid
Receivables can become one of the biggest working capital pressures. Offering credit can help win customers, but it also means your money sits in unpaid invoices until customers pay.
That creates a cost. You may spend time chasing payment, carry the risk of bad debts, and have less cash available while waiting.
A good credit control policy helps. Set clear terms, check customer creditworthiness, ask for deposits where appropriate, use stage payments, and follow up unpaid invoices promptly.
For more practical steps, our episode on Getting Paid on Time: Practical Steps to Protect Your Cashflow is a useful follow-on.
Tips to improve working capital
- Keep an eye on unpaid customer invoices.
- Agree clear payment terms before work starts.
- Ask for deposits or stage payments where possible.
- Reduce the time between doing the work and billing the customer.
- Avoid holding too much stock or work in progress.
- Review slow-moving inventory.
- Use accounting systems to track what is owed and what needs paying.
- Maintain good supplier relationships and pay bills on time.
- Monitor overdrafts and short-term debts carefully.
- Review your working capital regularly, not just at year end.
Good systems make this easier. Our episode on Cloud Accounting: Embracing the Future of Financial Management explains how digital records can help you monitor business performance and stay on top of your numbers.
FAQs about working capital
What is working capital in business?
Working capital is the difference between current assets and current liabilities. It shows how much short-term financial fuel your business has available.
Why is working capital important?
Working capital is important because it helps your business pay bills, suppliers, loans, wages and owners. Without enough working capital, the business can struggle even if it is profitable.
What are examples of current assets?
Common current assets include cash, unpaid customer invoices and inventory. Inventory can include stock, partly completed products or work in progress.
How can I improve working capital?
You can improve working capital by collecting customer payments faster, reducing slow-moving stock, billing promptly, using deposits or stage payments, managing supplier terms and monitoring short-term debts.
Episode Timecodes
- 00:00 – Introduction to episode 52
- 00:28 – One year of the I Hate Numbers podcast
- 00:57 – Why this episode focuses on working capital
- 01:22 – What working capital is, how to calculate it and why it matters
- 01:45 – Working capital as the fuel in your business
- 02:38 – Assets in a service business
- 03:25 – Short-term assets and cash generation
- 04:09 – Inventory, receivables and cash
- 05:17 – Work in progress in service and product businesses
- 06:08 – Receivables and customer credit
- 07:07 – Short-term debts and current liabilities
- 07:53 – Using the seesaw idea to compare assets and debts
- 08:14 – Calculating current assets
- 09:32 – Calculating current debts
- 09:57 – Positive working capital and liquidity
- 10:20 – Why inventory can be hard to convert into cash
- 11:25 – Why sufficient working capital keeps the business operating
- 11:55 – Tips for improving working capital
- 12:43 – Receivables, credit control and customer payment terms
- 13:53 – Why profit does not guarantee survival
- 14:17 – Working capital examples and the operating cycle
- 14:47 – Final support and wrap-up
Related episodes
- Cash Flow Management Tips : 5 Essential Tips
- Build Your Cash Flow with a Spreadsheet: Create a Practical Forecast
- How different is cash to profits?
Key takeaway
Working capital is the short-term fuel that keeps your business operating. It is tied up in cash, unpaid customer invoices, inventory, work in progress and short-term debts.
A profitable business can still struggle if cash is trapped in the wrong places. Keep your working capital under review, bill promptly, collect money faster, manage stock carefully and use good systems to track what is coming in and going out.
Plan it, Do it, Profit.
“Profit does not guarantee survival if your working capital is poor and your money is tied up in customers and inventory.”
Further Support
The I Hate Numbers podcast helps business owners understand accounting, tax, finance, profit, cash flow, and business planning in a practical way. We simplify financial topics so you can make better decisions and feel more confident with your numbers.
You can also watch more practical finance and tax support on the I Hate Numbers YouTube channel, or listen and follow on Apple Podcasts.
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Transcript
You are listening to the I Hate Numbers Podcast with Mahmood Reza. The I Hate Numbers podcast mission is to help your business survive and thrive by you better understanding and connecting with your numbers. Number love and care is what it's about. Tune in every week. Now, here's your host, Mahmood Reza.
::Hi folks, and welcome to episode 52 of I Hate Numbers. That's right, you heard it right. Episode 52. That one year in, a year ago when I started the weekly podcast I Hate Numbers, my mission and aim then was to get business owners closer to their numbers to appreciate what those numbers can do, improve their money mindset, help them make more profit, save taxes, and actually give them the business that they want and deserve.
::52 weeks later, I'm still going. I'm still learning. I'm still improving. I hope I'm bringing value to you through this podcast. I hope you're enjoying and getting a bit closer to your numbers. Now, in this episode, in this anniversary episode, I've chosen the topic of working capital. Just throw in a bit of a buzzword there, and in this broadcast episode I'm going to be looking at four things.
::Number one, what on Earth do we mean by working capital? How do you work it out for your business? Why it's important and tips that you can do to improve the working capital of your business. Let's crack on with the broadcast. Now, the first thing I want you to think in terms of is visualise this. You've got a car, you've got a beautiful car.
::That beautiful car represents your business. Now, in order to operate that car, in order to get that car from A to B, you need to make sure you've got enough fuel in the tank to keep that business going. That fuel that keeps the business going is the equivalent to your working capital. Working capital is your short-term funds that are wrapped up in your business that helps you keep your business going on day-to-day, helps you pay the bills, helps you pay yourself, helps you pay your employees.
::Working capital by some people is also seen as the electricity in your house that powers and provides the energy to keep the house nice and warm and comfortable, power the cattle, the oven, and so it goes on. Now, in terms of what working capital actually is in your business, and what I want to do is to visualise two or three businesses here.
::So, if you are a service business to provide consultant services, training services, so you're not making a physical product, then you need to look at your business and consider three umbrella terms. Number one, think of those items that have value in your business, which accountants like me, call assets, and some of those assets you can break down into groupings. So, you've got some assets in your business
::which you're requiring to keep in the business to help you provide the services, so things like computers, machinery, office chair, office furniture, would all be assets in your business, but we call those fixed because they're not purchased with the intention of selling them. You maintain and keep them within your business.
::If you don't have computing equipment, if you don't have phones, office furniture and the like, it's going to be quite challenging to deliver the services. Now, the other group of assets that you might have are more short-term in nature and, effectively, the ultimate objective would be to convert those into good old-fashioned cash.
::Those short term assets, effectively, unlike the ATM in your business, they are the ones that ultimately generate the cash that you need to operate your business, to pay your supply bills, to reward yourself, to repay back loans and the like. If you check out previous podcast episodes we've had, then you'll see some great recordings on cash flow,
::but let's get back to this idea of current assets. Now, typically, most businesses, their current assets, which are just a posh way of saying short-term, are made up of three items. There are things called inventories. Now, inventories is the international term for what in the UK and other countries we might know as stock.
::So, you've got inventories and even service businesses, by the way, will have inventories. We then have got receivables, which is just a technical term for unpaid customer accounts. So, if you are selling your services, selling your products, and you give your customers time to pay their bills, then you've got receivables.
::Again, the old term is debtors. And the last item is actually good old cash, money in the bank, money that's physical in your cash tin. The third aspect is cash. All businesses will have elements of those three. So, if you're a service business, if you take on an assignment from a customer, you haven't quite finished their work, then effectively you have inventory.
::It's called work in progress. You can't physically see it, but it's there. So, as an accountant in practice, if I take on a client's assignment, a set of accounts, a bit of tax planning, if the job hasn't been completed, then that's called work in progress. If you're a training company that's offering a course spread over a period of time, then until the course is complete, then again, and you are working on that course, you've got work in progress.
::If you're a plumber or an electrician, if you start a job for a customer and the job hasn't yet been completed, then you've got work in progress. Now, if you are a manufacturer and you're making a product, so a half-completed table, a half-completed chair is also going to be called work in progress. So, all businesses will have some element of inventories.
::Does it matter? Do we need to worry about that? And the answer is yes, and I'll explain that later on in the podcast. Now, receivables are the other aspects. So, I use a customer account. Now, there are some businesses out there. Your business may be one of them that actually doesn't offer credit facilities to customers.
::If you are able to do that, sustain and grow your business, fantastic. Cash is always going to be the dictating philosophy for survival in a business, but for most of us, it's very difficult to trade. It's very difficult to expand. It's very difficult to get those customers unless there's an element of credit facilities being offered.
::Now, those are all your short-term assets. Again, we collectively call those current assets, and the idea behind the current assets aspect is that ultimately they all turn into cash. That's what we want. There's no point having a job for a customer until it's completed, and we get that money in the bank.
::Now, on the other side, there are also debts that a company has, and debts typically can be broken down into two broad categories. The first one is what's called long-term, and that's typically things like mortgages, long-term loans, higher-purchase agreements, and in the world of finance and accounting, long-term is typically anything over 12 months of duration.
::Now, the one that we are interested for today's podcast is what's called current debt. Typically, those are things like bank overdrafts, money owing to your suppliers, amounts for bills unpaid. Those are all current debts. As a P.S. by the way, in technical language, if you come across it, I don't particularly like this word.
::They use the word liabilities to effectively represent the word debt. For our purposes on today's podcast, I'm going to be using the word debt to represent that. So, now let's imagine a see-saw. On the one side of the see-saw we collect all the items that constitute current assets, and I'll suggest that you do that for your business.
::So, after this podcast, have a look around your business and toss up under these three umbrella terms, what is the money in your bank, that's the slightly easy one to calculate. Next, tot up value of your unpaid customer bills. So, all those customers that you've invoiced, how much is yet to be collected? That gives you the value of your receivables.
::The old UK terminology, and it's still used around the world, is called debtors. And the third aspect is your inventories. Now, if you are a manufacturer or a retailer, have a look around you. And if you haven't done one, do a stop check. Add up the value of all those items that you've got ready to sell to a customer.
::Have a look round. If you are manufacturing, take a view on what the value of that partly completed component or product is. Value them at the cost that you've incurred. Now, if you are a service-based business, think about the work that you've done so far. Think about what stage you are and think to yourself, okay, if I was to stop trading with my customer and build them for that proportion of work, what's the value of that work in progress going to be? Now, that goes on one side of the seesaw. Now, on the other side of the seesaw tot up what your short-term debts are.
::So, what's the level of your bank overdraft if you've got one? And bank overdrafts, by the way, are current because the banks always reserve the right to have them repaid on demand. In addition, add up how much money is outstanding to your suppliers, tot it up, and see which way the seesaw balance is. Now, ideally, you want more current assets than you've got current debts.
::A surplus is a good thing. Now, if it's negative, it doesn't necessarily mean that's the end of the road, but we are going typically for a positive working capital. Now, one more factor is taken into account. Within that group of current assets, there is one particular item that is considered very difficult or challenging to convert into cash very quickly.
::So, if our suppliers knocked on our door and says, Mahmood, you've got some outstanding bills, can you settle them up? Well, I checked to see if there's any money in the bank. If there's no money in the bank. Options are: I have a look at what's not been paid to me yet to my customer accounts, or if they're not overdue, or I'm having challenges collecting them, then where else do I go?
::Well, inventories is considered the one that's most difficult to convert into cash. If you've partially completed the service for a customer, can you get the value for that? Obviously, having payment terms where you are paid by installments is a good tip to take away. If you've got physical stock building up,
::then again, that may be quite difficult to shift at short notice. So, what we want to make sure is that we don't have a disproportionate amount of inventories building up in our business. So, let's remind ourselves where we are. We've talked about what working capital is, and it's effectively a see-saw between current assets, which are the short term things like inventory,
::receivables in cash, and the other side is the short term debt like overdrafts and unpaid supplier bills. The next thing is, why is it important? Well, if you don't have sufficient working capital, your business will not be able to operate. When it comes time to pay loans, when it comes time to pay suppliers, when it comes time to pay yourself, if you don't have sufficient liquid funds i.e cash to do those things, your business will suffer dramatically.
::So, we need a good supply of working capital to operate on a daily basis. We've talked about the elements that make up working capital. Now, let's focus in terms of now are some takeaway tips in addition to what we've discussed already. Now, when it comes to inventories, there's always a balancing effect.
::We don't want to have too much inventory building up, because that's money tied up in that asset, and if we need to get the cash from that, that might be quite problematic. If you're a service based business, then revisit the value of your work in progress, how much the work is not done, and perhaps it's a discussion you need to have with yourself or your advisors to how you can reduce the time it takes to get it delivered to the end customers, so you can build them.
::Remember, customers typically are not interested until the work is finally completed. Can you do stage payments? Are there things in your process that you can do that cuts down the time it takes to complete a job? The other aspects, such as receivables. Now, we have, typically, in all businesses to offer credit facilities to customers to get trade, and there is a cost, but there's always a cost to everything.
::The cost will be the cost of collecting that money, the cost of maintaining that customer and account, the bad debts that may unfortunately arise, the money that's tied up in those receivables. So, anything that has a relation to cost. The downside is, if you don't offer credit facilities, you may not be able to get that customer's trade.
::So, we need to think about a good credit control policy. We need to think about the terms and conditions. We need to have good capture systems like Xero to be able to operate effectively. We need to be on top of it, and we need to monitor and manage that element as well. So, from the selection and credit worthiness of the customers that we engage with the terms, if we can get deposits out front,
::if we are on top of that credit control, then that's certainly going to inject a great deal of cash back into the business. So, folks, let's just summarise where we are. We've talked about working capital, and a profitable business, by the way, doesn't actually mean it's going to survive. If your working capital is quite poor, you've got lots of money tied up in those inventories and customer accounts, then that could be quite dangerous.
::We've talked about how to calculate it. If you check out the show notes at the end, the show notes have got a worked example of working capital for two businesses, for a service business and a manufacturing business, so you can see what's going on. Now, I hope you enjoyed episode 52. I hope there are bits there you can take and apply to your business and improve it, and we should always be looking at to do what we can to improve that operating cycle, working capital cycle in our business.
::If you need any more help, check out the show notes, check out our resources, and by all means, give us a shout if you need help improving the working capital in your business. So, folks, have a great week. I'll see you next week. We hope you enjoyed this episode and appreciate you taking the time to listen to the show.
::We hope you got some value. If you did, then we'd love it if you shared the episode. We look forward to you joining us next week for another I Hate Numbers episode.
