Rolling Forecasts

Budgeting vs Forecasting – Key Differences and When to Use Each?

6 mins

People often use budgeting and forecasting interchangeably. They shouldn’t. The difference between budget and forecast can make a world of difference for a company’s success. Budgets set targets, but forecasts tell you if you’ll actually hit them. In this blog, we’ll break down the key differences between these two and show you when and how to use each, so keep reading. 

 

Related: Rolling Forecast – 101 Guide For Smarter Planning

Budgeting and Forecasting Explained

Budgeting and forecasting are essential tools in any company’s financial strategy. Each of them has a specific purpose, though. In simple terms, you will use budgeting when you want to specify what you want to happen. Forecasting, on the other hand, tells you what will most likely happen. 

What is Budgeting?

Budgeting is setting a company’s financial plan for a specific period – usually a fiscal year. In this process, companies define how they will earn and spend money, giving them a clear financial direction to follow. 

Specifically, they create a structured plan with expected revenue, detailed expenses, and financial targets, and use it to ensure that their decisions align with the overall strategy. 

Example:

A global retail company projects $1 billion in revenue for the upcoming year and decides that it’ll spend $600 million for operating expenses, $200 million for marketing and expansion, and $100 million for capital improvements. From there, department heads further break down specific spending and ensure it aligns with the overall financial targets.

There are many different types of budgeting, and we won’t list them all here, but it’s important to know that most budgets are either static – fixed throughout the year, flexible – they adjust based on actual performance, or zero-based, where each expense is justified from scratch to maximize cost control.

What is Forecasting?

Forecasting is predicting the future financial outcomes of the company, based on current data, historical trends, and market conditions. As mentioned above, budgeting sets fixed targets, but forecasting gives a continuous assessment of the most likely outcomes. That way, the company can adjust its strategy regularly, and make informed decisions when circumstances change. 

 

Read: Bottom-up vs Top-down Forecasting in Demand Planning

Example:

After setting their $1 billion revenue target in the budget, the company from the example above will forecast every quarter, based on actual sales performance, market trends, and ever-changing customer demand. When consumer behavior changes, and sales dip, they might update the forecast and revise the annual revenue to $950 million. This forecast helps decision-makers adapt company spending or marketing strategies so they still meet their objectives.

Just like with budgeting, there are many various types of forecasting, but it’s important to distinguish between short-term forecasting (focused on immediate business needs), long-term forecasting (used for global, strategic planning) and rolling forecasts (continually updated to reflect the latest business changes and trends).

budgeting vs forecasting explained
Budgeting and forecasting explained

Budgeting vs Forecasting - How Are They Different?

Although essential tools in financial planning, budgeting and forecasting have different purposes. Treating them the same or relying too much on one or the other can lead to bad business decisions.

Fixed vs. Flexible Timelines

Budgets are usually set for an entire year, giving companies fixed targets. This works when things are stable, and to be honest, that doesn’t happen often. Markets and customer needs change, and new challenges come up constantly. Forecasting provides regular updates—quarterly, monthly, and sometimes even weekly—so companies can adjust based on the latest information.

Control vs. Adapting

Budgeting is about setting targets and spending control, but it doesn’t handle surprises well, so to speak. In a fast-moving environment, sticking strictly to the budget can leave companies unprepared. Forecasting, on the other hand, helps adapt to changes and make informed decisions when unexpected situations occur.

Detailed vs. Big Picture

Budgets are usually very detailed, breaking down costs for multiple departments and/or projects. This level of control can be useful, but it can also be limiting. Forecasts focus more on overall trends and give leaders a broader view, allowing them to react quickly without getting stuck in the details.

Static vs. Dynamic

If a budget is the framework, forecasting is the tool that allows for flexibility. Once they’re set, budgets are rigid, and it’s hard to adjust them mid-year. Forecasting, on the other hand, is dynamic and lets companies remain agile, adjusting quickly to changes in the market or within the company. Relying only on a fixed budget can be risky, while forecasting gives a company the ability to adapt as needed.

Management vs. Operatives

Management—CFOs, department heads, and other leaders—relies on forecasting to adjust strategies and make high-level decisions based on the latest data. Operatives, like mid-level managers and staff, focus on sticking to the budget, ensuring day to day operations follow the financial plan. Management uses forecasting for flexibility, while operatives follow the budget to control spending.

differences between budgeting and forecasting
Differences between budgeting vs forecasting

When to Use Budgeting vs Forecasting?

Companies typically create budgets first and then use forecasts. Budgets set financial targets, while forecasts monitor progress and adjust plans as needed. Long-term forecasting can happen without a budget, but it often relies on past budget data for context.

Situations Ideal for Budgeting

  • Annual planning: Companies use budgeting to set financial goals for the year. For instance, the global retail company mentioned earlier will allocate $200 million for opening stores in new markets.
  • Resource allocation: Budgets help distribute resources where they’re needed most. Our company could set aside $50 million to expand its e-commerce operations, capitalizing on growing online demand.
  • Performance evaluation: Budgets set a baseline for measuring actual performance. Each quarter, the retailer compares actual sales to budgeted targets, finding areas for adjustments.

Situations Ideal for Forecasting

  • Strategic decisions: Like mentioned earlier, forecasting helps companies adapt. For example, after a dip in customer demand, the retail company will update its forecast and adjust marketing spend for the next quarter.
  • Risk management: Forecasts are useful in managing risks. The retail company might change its forecast to prepare for supply chain disruptions because of political instability in a key sourcing region.
  • Day-to-day changes: Forecasting allows companies to adjust day-to-day operations based on short-term needs. The company will most likely forecast weekly to manage inventory and align orders with changing customer preferences.
  • Scenario planning: Companies use forecasting to prepare for different scenarios. The retail company will probably run best- and worst-case scenarios to plan for a potential economic downturn, adjusting their hiring and spending plans, for example.
  • Cash flow management: Forecasting ensures companies can manage their cash flow effectively. Our retail company will forecast cash flow to make sure it can cover payroll and operational costs during slower sales months.

when will a company use budgeting and forecasting
When will a company use budgeting and forecasting

Integrating Budgeting and Forecasting for Best Business Results

These two are a powerful combination that helps businesses hit their targets and adapt when the market surprises them. Budgets lock in the big goals, and forecasts keep the company flexible, ensuring decisions are based on what’s happening right now—not last quarter.

Keep the Goals Steady, But Plans Flexible

When budgets and forecasts are synced, businesses stay on course even when conditions change unexpectedly. Updating forecasts regularly means making smart adjustments without losing sight of long-term goals. Our trusty global retailer will set a $1 billion revenue target but revise its forecast monthly based on actual sales, and adjust marketing spend as needed to keep the strategy in check—even when the market takes a sudden turn.

 

Rolling Forecasts Are Always a Good Idea

They can really be a breakthrough. Instead of sticking to a static budget, companies get a continuous, real-time glance of their performance. Our retailer uses them every month. If supply chain costs spike, they can adjust right away and reallocate resources to stay profitable. The constant monitoring keeps them ready to act on time.

How to Overcome the Common Challenges in Budgeting and Forecasting?

No matter how good of a job you do preparing your financial plans, you’ll have to skip across some hurdles. Here are the most common ones, and what to do about them.

Uncertainty

Markets are volatile, and rigid budgets are, well… rigid. Rolling forecasts keep things flexible and help you adapt quickly to market shifts.

Budget Rigidity

Fixed budgets can stop your teams from responding to new opportunities. Flexible budgeting, based on real-time performance, gives your teams the freedom to pivot when needed.

Forecast Accuracy

Relying on outdated data can lead to poor forecasts. Using real-time data and advanced forecasting tools whenever possible makes a huge difference in accuracy.

Team Alignment Around the Budget and Forecast

Team often get missaligned, which leads to miscommunication. Regular cross-departmental meetings improve accountability help keep everyone on the same page.

 

All of these have one thing in common – a good budgeting and forecasting tool can help you eliminate them.

Conclusion

Budgeting and forecasting are both important, but their integration makes the magic happen. Budgets give structure, while forecasts keep you ready to change when needed. When you align both, you can hit your targets, adapt when neccessary, and stay prepared for any challenges. A balanced approach gives you financial stability, flexibility, and better business decisions.

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