Businesses with lofty ambitions for growth and long-term profitability need all the tools available to them. Some of these tools are obvious, like robust accounting software, good internal systems and controls. Forecasting and financial modelling are two of the most important, but often most overlooked of these tools. Find out how and why you should be thinking about them, in this guest post from Martin Dean, Corporate Finance Director at Gravitate Accountants.

Why are forecasting and financial modelling such important tools for businesses with ambitions to scale? It’s because growing businesses rarely collapse because they lack profits – they collapse because they run out of cash at the wrong time.

Forecasting helps you maintain resilience and stability during growth periods.

Without an appropriate budget, forecast and financial models, business owners are effectively operating blind with regards to the short and long-term future.

•  Forecasting helps you proactively plan rather than react to change
•  All these tools support better decision making
•  They provide greater visibility over both risks and opportunities
•  They are also becoming increasingly important for raising funding or
• investment.

Ultimately, they help business owners align their strategy and decision-making with their financial reality.

So what actually is a financial model?

A financial model is not an accounting term that many business owners will know, and it sounds a lot more complex than it actually is.

It’s a spreadsheet (usually in Excel) that shows how a business makes money, spends money, and performs financially while using formulas to forecast future results.

It can be used to translate business strategy into numbers and create forward looking projections based on assumptions.

For example, you can use a financial model to see what would happen if certain assumptions on growth, costs or revenue come to be!

What makes a financial model?

A financial model typically contains three main components:

What are your revenue drivers?

This is what actually generates income for your business:

•  Your pricing
•  The number of customers you have, and whether they are one off or recurring
•  The volume of sales you make, including sales per customer
•  Your conversion rate from lead/prospect to paying customer

What’s key to a financial model is basing it on these drivers, with data backed information, not guesswork.

What is your cost structure

Understanding the cost behaviour of your business is key to scaling sustainably.

• Your cost structure includes things like:
•  Your fixed costs versus variable costs
•  Your staffing levels and associated costs – this is often the biggest cost a business has
•  Your operational expenses

What is your cash flow like?

Cash flow is critical to growing sustainably. As mentioned before, businesses fail because they run out of cash, not because they lack profit at a given time.

A financial model must always include when cash comes in and when cash goes out of the business.

Forecasting vs Budgeting: What’s the difference?

A financial model requires both a robust budget and forecast to support it. These are both extremely important but are distinct tools that serve different purposes.

• Your budget is a fixed plan, usually annual, where you set out what you plan to send and what revenue you aim to generate from that spend.
•  A forecast is a more dynamic, evolving view that projects how things will look in the future based on real performance versus your budget.

Budgets and forecasts work together, with the budget remaining static until the next time it is reviewed, and forecasts being continually updated as things change.

Scenario planning

One of the best uses of a financial model is to test various real-world scenarios and see how they will affect your bottom line.

 What happens to your cash flow if sales drop by 20%

•  What if you hire three more people?
•  What if you raise prices by 5%?
•  What if the government changes a key tax rate, such as Employer National Insurance Contributions?
•  What if the National Minimum Wage rises significantly?

A financial model helps you plan for these scenarios by seeing what the financial impact will be on your cash levels and profitability.

This means you can understand more risk areas and be better prepared for economic shocks. It means more informed decisions and less uncertainty.

Why is a financial model such an important growth tool?

So how do these tools help businesses grow with confidence? Financial modelling helps you manage and predict the impact of various decisions so you can plan for growth with less uncertainty.

Hiring decisions

A financial model helps your business plan for hiring by showing precisely when it can and cannot afford to take on new staff, as well as how those salaries will impact overall costs and profitability.

Timing investment right

It also helps you time investments effectively and avoid costly mistakes. Financial models indicate when the business has enough cash to invest in areas like equipment, marketing, or diversification, and when it doesn’t.

Managing your burn rate

Your burn rate shows how quickly a company is using up its money, usually measured monthly. Financial models help manage burn rate by tracking how quickly the business is spending cash and how long its available funds will last.

Understand funding needs

Using financial models, you can identify and understand your business funding needs and when the business will run out of cash and how much external funding is required.

Why it’s getting harder to raise funds (and why forecasts are now essential!)

The days of fundraising being a simple conversation with a bank manager appear to be long gone, as lenders and investors pay more attention to repayment capacity and/or risk profile, using more data driven tools and triggers to warn of instability.

For lenders

Lenders need to be confident that your business can generate enough cash flow to cover repayments. A three-way forecast (cash flow, income statement, balance sheet) shows a clear roadmap and a business that is not just relying on gut instinct.

For investors

Likewise, investors want to see robust financial forecasting to assess investment risk, validate the business model itself. In a more cautious, data-driven market, investors rely upon forecasts to determine if your company has a clear and realistic path to long-term profitability.

A strong financial model supported by forecasts shows that you understand your business and how to grow it responsibly.

Tips to get it right

There are several ways to create a dependable forecast and financial model, but your best bet is to have one created bespoke by a specialist accountant.

Your forecasts and financial models should be:

•  Practical
•  Easy to use
•  Built for decision making

It’s not just about technical accuracy (though that is still very important!)

Keep it logical

• Use a clear structure (e.g. assumptions, calculations and outputs)
• Ensure formulas are logical and consistent
• Anyone reviewing the model should be able to understand how it works
• Use structured templates to maintain consistency and make sure all key areas are covered
• Focus on key business drivers (e.g. price, volume, customer numbers) rather than arbitrary figures.

Don’t overcomplicate it

Overly complex models can be difficult to maintain without errors, and ultimately slow down decision making. Use straightforward formulas and avoid unnecessary detail.

Keep it user friendly

• A good financial model should be easy to navigate and clearly show the key outputs (like profit or cash flow).
• Your model should enable users to quickly change assumptions and see the impact.

Use the right tools

• Excel is your go-to tool for most financial models. It’s flexible and accessible while still allowing for detailed calculations and forecasting.
• This means you can adapt it as the business grows and your priorities change.

If you’d like to learn more, speak to Sheffield Digital to arrange a consultation with me about your own forecast and financial model. We can work together to build something that is clear, practical, and tailored to your business. Knowing your numbers leads to better decisions and long-term success.You can also watch this webinar delivered by Martin as part of the Pathways off the Plateau programme, in which he explains forecasting and financial modelling.