Running a small business isn’t just about making sales, it’s about making sure there’s enough cash on hand to cover expenses when they’re due. Even if your business is profitable on paper, you can still run into trouble if money isn’t coming in when you need it.

Red Fish Accountancy is aware that many businesses struggle, not because they aren’t making enough money, but because their cash flow is all over the place. 

Maybe customers take too long to pay, unexpected expenses pop up, or certain months are slower than others. When cash flow is unpredictable, it can make it hard to pay suppliers, employees, or even yourself.

The good news is that managing cash flow doesn’t have to be complicated.

What is Cash Flow and Why Does It Matter?

Cash flow is simply the money coming in and going out of your business. It includes everything: customer payments, sales, rent, wages, supplier costs, and unexpected expenses. While profit shows whether a business is successful on paper, cash flow determines whether it can keep running day to day.

If you have positive cash flow, you’re bringing in more money than you’re spending. This means you can pay your bills on time, invest in growth, and have a safety net for slow months or emergencies. But if cash flow turns negative, where more money is going out than coming in, it can quickly cause problems—even for businesses that seem profitable.

Many small businesses run into trouble not because they aren’t making enough money, but because their cash flow is unpredictable. A report by UK Finance found that over half of small businesses face delays in customer payments, often waiting more than 30 days after an invoice is due. This can create a cash shortage, making it harder to cover everyday expenses like payroll, rent, or supplier payments.

Managing cash flow isn’t just about tracking income and expenses, it’s about timing. A business can have plenty of sales on paper, but if the cash isn’t in the bank when bills are due, it can lead to financial stress. That’s why knowing how and when money moves through your business is just as important as making a profit.

Common Cash Flow Mistakes Small Businesses Make

Even successful businesses can run into cash flow problems. Here are some common mistakes that can lead to financial instability:

Not Keeping Track of Cash Flow Regularly

Many business owners rely on their bank balance to gauge their financial health. But this doesn’t give a full picture of what’s really happening with cash flow. If you are not tracking when money is coming in and going out, you may not see problems until it is too late.

How to fix it: Set up a simple cash flow tracking system. Use accounting software or a spreadsheet to monitor your cash flow weekly or monthly.

Letting Late Payments Pile Up

Unpaid invoices can seriously affect cash flow. If customers take 60 days or more to pay, you may struggle to cover business expenses in the meantime.

How to fix it: Set clear payment terms and follow up on overdue invoices quickly. Consider offering small discounts for early payments or charging interest on late payments.

Young coffee shop owner doing some paperwork
Overspending on Growth Too Quickly

Expanding your business is exciting, but putting all your cash into new stock, staff, or equipment without a financial cushion can leave you short on cash.

How to fix it: Plan large purchases carefully and always keep an emergency fund for unexpected costs.

Ignoring Seasonal Fluctuations

Some businesses have predictable slow periods. Retailers see drops after the holiday rush, tourism businesses slow down in the off-season, and construction work slows in the winter.

How to fix it: Save extra during busy months to cover expenses during slow periods.

Improve Your Cash Flow and Keep Your Business Stable

Making a profit is important, but keeping cash flow steady is what helps businesses stay financially secure. 

Here are some ways to improve cash flow and avoid financial stress.

Know Your Numbers

If you don’t have a clear picture of how much is coming in and going out each month, managing cash flow will always feel like a guessing game.

  • Set up a cash flow forecast to track expected income and expenses for the next three to six months.
  • Review your finances weekly to spot potential problems before they become serious.
  • Use accounting software to keep your records organised and automated.
Speed Up Incoming Payments

Getting paid on time is one of the easiest ways to improve cash flow.

  • Send invoices immediately—don’t wait until the end of the month.
  • Offer digital payment options to make it easy for customers to pay.
  • Set clear payment terms, such as requiring payment within 14 or 30 days instead of 60 or more.
Cut Unnecessary Expenses

Small, unnecessary costs can add up quickly and drain cash flow.

  • Review your expenses regularly and cancel any subscriptions or services you don’t need.
  • Negotiate with suppliers for better deals.
  • Delay non-essential purchases, especially during slower months.
Build a Cash Reserve

Unexpected expenses will always come up. Having a financial cushion will help you avoid stress when they do.

  • Aim to save at least three months’ worth of business expenses as a cash reserve.
  • Use high-earning months to set aside extra cash instead of spending it all.

What Happens If You Ignore Cash Flow?

Many businesses assume that as long as they are making a profit, everything is fine. But poor cash flow management can lead to serious financial problems.

If you don’t have enough cash available, you may struggle to:

  • Pay suppliers and employees on time
  • Cover rent, utilities, and other operating costs
  • Take advantage of growth opportunities when they arise

Running out of cash can force businesses to rely on expensive short-term loans or credit cards, which only make financial problems worse in the long run.

Signs Your Cash Flow is Becoming a Problem

Ignoring cash flow doesn’t usually lead to an immediate crisis, but there are warning signs that should not be overlooked. If you find yourself regularly experiencing any of the following, it may be time to reassess how your business manages cash flow:

  • Struggling to pay suppliers and employees on time – If you’re frequently pushing back payments or juggling invoices, it’s a sign that cash isn’t flowing as it should.
  • Falling behind on rent, utilities, or loan repayments – If you’re dipping into emergency funds to cover fixed costs, the problem will only worsen over time.
  • Relying too much on credit – Using short-term loans or credit cards to cover regular expenses is a short-term fix that can quickly lead to long-term debt.
  • Missing out on opportunities – If you can’t invest in bulk inventory, hire additional staff, or take advantage of supplier discounts because you don’t have the cash, it limits your ability to grow.

Here’s a Cash Flow Checklist for Small Business Owners

A clear cash flow plan helps you stay in control of your finances, avoid last-minute stress, and make better business decisions. 

This checklist will guide you through the key steps to managing cash flow effectively, so your business stays stable, even during slow months.

Daily Cash Flow Tasks
  • Check your bank balance to know how much cash is available before making payments.
  • Send invoices as soon as work is completed or products are delivered.
  • Follow up on overdue invoices promptly to avoid payment delays.
Weekly Cash Flow Tasks
  • Review outstanding invoices and send reminders for payments due.
  • Monitor expenses and identify any unnecessary spending.
  • Forecast short-term cash flow to ensure enough funds for upcoming payments.
  • Set money aside for tax obligations to avoid financial strain later.
Monthly Cash Flow Tasks
  • Update your cash flow statement to see how your business is performing.
  • Reconcile bank transactions to match financial records with actual cash.
  • Negotiate with suppliers for better payment terms if needed.
  • Review loan and credit card balances to keep interest costs under control.
  • Adjust pricing if costs have increased to maintain healthy profit margins.
Quarterly Cash Flow Tasks
  • Review your cash flow forecast to plan for seasonal dips or major expenses.
  • Analyse customer payment patterns and adjust policies if late payments are a problem.
  • Reassess expenses and overheads to identify areas where costs can be reduced.
  • Check your emergency fund to ensure at least three to six months of expenses are covered.
A man is working at his desk
Annual Cash Flow Tasks
  • Plan for large purchases and determine how they will be funded without disrupting cash flow.
  • Review financing options to ensure access to credit when needed.
  • Assess financial performance over the past year and make adjustments for better cash management.
  • Meet with an accountant to get expert advice on tax planning and financial strategy.

Keeping Your Cash Flow Under Control

Managing cash flow is one of the most important aspects of running a successful business. 

Even if your business is making a profit, poor cash flow management can lead to missed payments, financial stress, and lost opportunities.

Keeping track of your incoming and outgoing cash, planning ahead for slow periods, and ensuring customers pay on time, you can avoid unnecessary financial struggles and keep your business stable.

Red Fish Accountancy helps small businesses take control of their cash flow with practical strategies and expert support. 

We also work closely with our clients to create cash flow forecasts, improve payment collection, manage expenses, and set up the right financial systems to ensure money is always available when it is needed

So if cash flow issues are keeping you up at night, get in touch with us. We will help you get your finances on track so you can focus on running your business with confidence.