A well-prepared cashflow forecast is an early warning system that lets you spot signs of cash trouble months, or even years in advance.

Small business cashflow is a roller coaster of income and expenses as the annual seasons progress.  The same cashflow cycles show up year after year, yet we continually see businesses falling into the same cashflow hole.

The good news is that there is a better way!

A well-prepared cashflow forecast is an early warning system that lets you spot signs of cash trouble months, or even years in advance.  Importantly, it provides the time and space for you to take action early to avoid a cash crunch.

The bad news is that good cashflow forecasting requires hard work up front from the person who knows the business best – you.

You can’t expect to throw together a robust spreadsheet cashflow forecast in minutes.  It takes effort, but it’s worthwhile to provide you with clarity about your business future.

So what does it take?

Fortunately, software tools like Castaway Forecasting make it easy to prepare your cashflow forecast the right way.  Castaway looks after the calculations, freeing you up to focus on getting the assumptions right.

The goal when building a cashflow forecast is for your model to reflect reality as closely as possible.  The more realistic the model, the more reliable the outcomes.

To help you get there, I’ve boiled down the 5 principles of building a great cashflow forecast:

1. 3-way (integrated) is powerful and best-practice

To ensure your cashflow numbers are properly calculated, best-practice is to prepare a 3-way, or integrated, forecast.  This is a special type of model that combines forecasts for all 3 basic financial reports for a business – the Profit & Loss, the Balance Sheet and the Cashflow Statement.

Banks love 3-way forecasts, because they know the cashflow numbers have ‘accounting integrity’.  3-Way forecasts also provide a great sanity check to ensure you haven’t missed anything in your forecast workings.

Although it may sound complicated at first, the idea is that you forecast the Profit & Loss Statement (revenues, expenses, taxes and dividends) and the Balance Sheet (assets, liabilities and equity).

The cashflow numbers will ‘fall out’ of movements in the 2 reports.  If the Profit & Loss numbers are realistic and the movements in the Balance Sheet seem sensible, the cashflow forecast, by definition, will also make sense.

2. Set specific cashflow attributes for every line

In reality, the cashflow pattern for, say, your Electricity Expenses line will be different to the cashflow pattern for Staff Wages, or Rent, or Stock Purchases.  Electricity Expenses might be paid quarterly, Staff Wages might have, say 70% of the cost being paid in the current month with 30% being held back to be sent to the tax collector next month.  Rent might be paid one month in advance and Stock Purchases might involve a 30% deposit up front, with the other 70% paid 30 days after the goods are received.

A good forecast will reflect these differences by using a separate set of cashflow attributes for every line.  This means a little more time setting up the forecast, but you already know the characteristics of your income and expenses and the increase in accuracy is worth it.

3. Build a dynamic model using operations drivers

When putting a forecast together, you will often face a choice between entering static numbers or building the numbers up from the underlying operations drivers.

Consider these two alternative approaches…

If you decided to enter static numbers, (the first approach), you might enter £1,000 for revenue, £600 for Cost of Goods Sold and £1,200 for Closing Inventory.

If you instead worked from drivers (the second approach), you might enter sales as 50 units being sold at £20 each. Cost of Goods Sold would be set as 60% of sales and you would hold 60 days of Closing Inventory.

Both methods will show the same results on the Profit & Loss and the Balance Sheet, so you might think the simplicity of the first method is more attractive. However, when it comes time to update the forecast, you will find the second approach far more useful.

Let’s say business has been good and you want to increase your sales forecast by 10%.  In the first approach, you would need to work out the new sales, COGS and inventory figures and then enter them into the forecast manually.  In the second, more dynamic approach, you only need to change the sales units (up to 55 in this example).  The forecast will then automatically update the sales revenue, COGS and Closing Inventory numbers.

4. If it’s not up to date, it’s out of date

In business, the only constant is that things change. Customers come and go. Prices and margins change. The business environment changes.  As the world changes around your business, it is important that your cashflow forecast changes to match it.

We encourage our clients to review the forecast often (at least monthly) and update it where necessary so that it always reflects the ‘best view of the future’.   An out of date forecast is at best misleading and at worst dangerous as a basis for making business decisions.

5. Play with different scenarios

As economic times become more uncertain, our approach to forecasting needs to become more sophisticated.

Once you have a robust cashflow forecast in place, don’t stop there.  Create several copies of the model and test the cashflow impact of different scenarios – it could be general sales growth or decline, gaining or losing specific customers, taking on new product lines, buying new assets, or whatever is on your mind.

Remember, the point of forecasting is not to try to predict the future perfectly.  Rather, it is about working out what the future would look like if a given set of assumptions were to take place and then figuring out a game plan to deal with the situation.

About the Author:

Michael Ford helps businesses design a better future.

Thought Leader| Growth Architect | Business Advisor| Speaker | Entrepreneur | Software Developer 

Michael is founder and CEO of Castaway Forecasting, the world’s most powerful business forecasting and modelling SAAS tool for SMEs and their advisors. 

Drawing on more than 30 years experience as an accountant, entrepreneur and business advisor, Michael envisioned Castaway as a transformative tool to change the future of business. Today, Castaway is used by half of the top 100 accounting firms in Australia and the UK, and helps solve cashflow, profit and growth problems for thousands of forward thinking SMEs across the globe.

In Michael’s journey from accountant to entrepreneur, he has tasted failure and enjoyed success. He advocates for curiosity, creativity and growth by design and engages global business audiences to unlock their possibilities and design a better future. In his spare time, he is dedicated to finding a cure for cancer with charity Tour de Cure, leading by example and inspiring positive change.

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