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Create a P&L Forecast in Under 10 Minutes: A Step-by-Step Guide
Apr 11, 2025
As a financial professional, one of the most critical tasks you'll face is creating an accurate and comprehensive profit and loss (P&L) forecast for your organization. This forecast serves as a roadmap for the company's financial future, guiding strategic decision-making and ensuring the business remains on a path to success.
In this in-depth blog post, we'll walk you through a step-by-step process for creating a P&L forecast in under 10 minutes. Whether you're a seasoned finance veteran or just starting out in the field, this guide will equip you with the tools and techniques you need to streamline this crucial financial planning exercise.
Understanding the Importance of a P&L Forecast
A well-crafted P&L forecast is essential for any business, as it provides a clear picture of the company's expected financial performance over the coming year. This forecast allows you to:
Anticipate and plan for changes in revenue, expenses, and profitability
Identify potential risks and opportunities that may arise in the future
Align the company's strategic objectives with its financial resources
Communicate the organization's financial outlook to key stakeholders, such as investors, lenders, and management
Inform critical business decisions, such as budgeting, resource allocation, and pricing strategies
By taking the time to create a comprehensive P&L forecast, you can help your organization navigate the challenges and capitalize on the opportunities that lie ahead. And as you'll soon discover, this process doesn't have to be a time-consuming ordeal – with the right approach, you can generate a reliable forecast in under 10 minutes.
Gathering the Necessary Data
The first step in creating a P&L forecast is to gather the necessary financial data. The process involves using the financial information for "Wayne Enterprises" over the past three years (2022-2024) to generate the forecast for 2025.
Download an example file here:
https://thefincontroller.com/p/createpnl-forecast-10mins
This data typically includes:
Revenue figures for the past three to five years
Cost of goods sold (COGS) for the same period
Operating expenses, such as research and development, marketing, and general and administrative (G&A) costs
Non-operating expenses, like interest and taxes
By having a clear understanding of the company's historical financial performance, you can begin to identify trends and patterns that will inform your forecasting process.
Forecasting Revenue
Revenue is typically the most challenging and critical component of the P&L forecast. To accurately predict future revenue, you'll need to consider several key factors:

Past Growth or Slowdown
Analyze the year-over-year growth or slowdown in revenue to determine the percentage change. This will give you a sense of the historical trajectory of the business and help you project future growth.
Investor Expectations
Understand the expectations of your company's investors. What level of revenue growth are they anticipating? This information can help you align your forecast with their goals and priorities.
Market Share and Opportunity
Evaluate your current market share and the overall market opportunity. By understanding your position within the industry and the potential for growth, you can make more informed assumptions about future revenue.
The process involves a detailed example of how to calculate the revenue forecast for 2025 based on these three factors. By taking an average of the growth rates derived from each consideration, they arrive at a 27% projected increase in revenue for the upcoming year.
Forecasting Expenses
Once you've established the revenue forecast, the next step is to project the associated expenses. This includes both the cost of goods sold (COGS) and the various operating expenses that the business will incur.
Cost of Goods Sold
To forecast COGS, analyze the historical relationship between revenue and COGS. Typically, you can express COGS as a percentage of revenue, which can then be applied to the projected revenue figure to estimate the upcoming year's COGS.
Operating Expenses
Similar to COGS, operating expenses can also be forecasted as a percentage of revenue. By examining the historical ratios of expenses like research and development, marketing, and G&A to revenue, you can project these costs for the upcoming year.
The process demonstrates how to calculate these expense percentages and then apply them to the revenue forecast to arrive at the complete P&L projection for 2025.
Finalizing the P&L Forecast
With the revenue and expense projections in place, you can now assemble the full P&L forecast for the upcoming year. This will include:
Total revenue
Cost of goods sold
Gross profit and gross margin
Operating expenses
Non-operating expenses (e.g., interest, taxes)
Net income or loss
By carefully reviewing the forecast and ensuring that the various components align with your assumptions and historical trends, you can have confidence in the accuracy of your projections.
Leveraging Technology to Streamline the Process
The financial data and P&L forecast template used in the example are available for download. This is a great example of how technology can be leveraged to simplify and accelerate the forecasting process.
By utilizing pre-built templates and tools, you can streamline the data gathering, calculation, and reporting aspects of the P&L forecast. This not only saves time but also helps to ensure consistency and accuracy in your financial projections.
If you're interested in taking your financial planning and analysis (FP&A) skills to the next level, be sure to check out the FP&A Academy. This comprehensive course covers the entire function of a financial analyst, from drafting budgets and performing financial statement analysis to creating management presentations.
You can connect with me on social media to access a wealth of free content and resources, including:
Instagram - Follow for financial tips, insights, and behind-the-scenes glimpses of the FP&A world.
TikTok - Discover bite-sized financial advice and tutorials in a fun, engaging format.
LinkedIn - Connect with me and engage with the broader finance community.
Conclusion
Creating a comprehensive P&L forecast doesn't have to be a daunting task. By following the step-by-step process outlined in this blog post, you can generate a reliable and accurate forecast in under 10 minutes.
Remember, the key to success lies in thoroughly understanding your company's historical financial performance, considering the various factors that will impact future revenue and expenses, and leveraging technology to streamline the forecasting process.
So, what are you waiting for? Dive in, put these techniques into practice, and take your financial planning and analysis skills to new heights. And don't forget to connect with The Financial Controller on social media for more valuable insights and resources to support your journey.
Bill Hanna
Founder, Controller Academy
Hey, I'm Bill Hanna.
I have had 18+ years of progressive roles in Accounting and Finance, both in Manufacturing and SAAS.
I summarize my experiences in my courses, so you don’t have to spend years learning them!!
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