February 10, 2022
Glossary

Activity-based budgeting: how to implement + pros & cons

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To truly understand what your company is spending, it’s not enough to only know the financials, but you need to know what the key cost drivers are behind those expenses. To help understand these drivers, activity-based budgeting can help. Typically used when transparency is required to reveal inefficiencies that may be compressing the company’s profit margin, ABB can create clarity around spending pain points. 


In this article, we’ll explain what activity-based budgeting is and why it’s important for better understanding your financial picture. We’ll also review some of the pros and cons and explain how to implement ABB if it’s the right fit for your business. Like most budgeting or accounting practices, using activity-based budgeting requires a team effort, so it’s important to create alignment among your teams before getting started.

What is activity-based budgeting (ABB)?


Unlike creating a traditional operating budget, activity-based budgeting involves the recording, research, and analysis of the activities that generate costs for the company. It’s a more rigorous process than traditional budgeting, which adjusts according to inflation or business development. Companies generally implement ABB to find the cost drivers that are causing a company to overspend.


Examples of cost drivers are direct labor hours, customer contacts, engineering change orders, machine orders, and number of product returns. Each of these activities comes with a cost, and every company will be structured differently. With activity-based budgeting, a company can track each of those costs independently, providing greater budget transparency.     


How to set up activity-based budgeting


The first step in setting up ABB is to identify the activities where money is being spent, then determine the number of units that activity requires. Best practices for this is to start with labor and materials costs, then do administrative costs. All these costs should be set up in a spreadsheet format and grouped based on commonalities.  


For example, if a department requires three full-time employees, the number of units required would be 120 (hours worked) per week. If the cost per hour is $20, that equates to a cost of $2400 per week. That’s a person-hour cost, so it should be grouped with other activities where the unit of measurement is the labor cost.  


By breaking costs down in this manner, companies can determine where cuts can be made to increase profitability. In the scenario above, rather than simply cutting the department budget and expecting the department head to adjust, the numbers gleaned from ABB can facilitate research on how the number of person-hours can be reduced. 

    

Examples of activity-based budgeting


Activity-based budgeting provides more accurate numbers for business expenses and calculating cost of goods sold (COGS). In traditional budgeting, a company with $4,000 in COGS from last month and an average sales increase of 10%, the COGS for the new month is estimated at $4,400. If sales exceed the monthly projection, that number will be off. 


With activity-based budgeting, the cost per unit sold is used to calculate the budget. Let’s say in the example above that the $4,000 in monthly sales represents 800 units with a production cost of $5 per unit. Rather than estimating new month sales cost as a percentage, the company can calculate a per-unit cost increase. That 10% increase is now 80 units sold. 


The difference may seem trivial, but in this case, ABB fills in additional business expense categories that can be used to cut costs and/or improve profitability. Can production costs be cut down? Can the number of units sold be increased? Having access to the more granular data provided by ABB can help facilitate better decisions in these areas. 


Another example of ABB providing cost savings is maintenance and upkeep. In traditional budgets, these are entered as an estimated expense, leaving margin for inaccuracies and even abuse of funds. With activity-based budgeting, each maintenance call or upgrade is itemized based on its unit cost. This makes it easier to see where costs can be trimmed back.    


Pros and cons of activity-based budgeting


Activity-based budgeting offers some clear advantages over traditional budgeting and zero-based budgeting. It provides more accurate cost data and gives a company insights for making business decisions that are simply not available with traditional budgeting. It’s also difficult to implement and maintain, so it requires a commitment from your entire team. Here are some pros and cons to consider:


Pros of activity-based budgeting


Competitive edge

 

Using activity-based budgeting can cut unnecessary costs and allow a company to compete more effectively, particularly in price-sensitive markets. Reducing overhead gives a company more flexibility for expansion and product development.  

Viewing the business as a unit

ABB provides a single-unit view where costs are measured in units. Administration and sales might be different departments, but they can both be measured in hours. Manufacturing incorporates materials and production costs, but these are recorded on the company bottom line, not the department's.

ABB eliminates bottlenecks

Activity-based budgeting reveals activities that are not necessary or redundant, providing justification to eliminate them. This makes the company more efficient and frees up employees to work on new projects or expand on existing ones.   

Improves customer relationships

When the company eliminates unnecessary activities and streamlines production costs, customer service improves. Business owners are able to see which activities directly affect profitability, so they tend to spend more time addressing customer concerns. 

Better tail spend management

Tail spend management is a term used to describe the analysis of high-volume, low-value expenses that clog up the transaction list and represent usually 20% or less of total spending. A common example of tail spend is print and packaging expenses. They fall outside the main purchasing processes and are often not effectively managed by the procurement team. 

Cons of activity-based budgeting


Complexity and understanding

The most significant drawback to activity-based budgeting is the complexity of the system and learning to understand it. Business owners, the executive team (if applicable), and all managers and accounting personnel need to fully understand it before it can be implemented. 

Resource intensive

Everyone needs to be on board and each person involved will need to take on additional tasks. Time consuming analyses are required, so employees may have to work extra hours to get them done. Owners will need to be more hands on while this is happening.  

Implementation costs

The main implementation cost for ABB is the training for the employees involved, including upper-level management. This may require the addition of new people who have previous experience with activity-based budgeting.   


How to implement activity-based budgeting


Before attempting the implementation of activity-based budgeting, it’s important to sit down with your team and get everyone on board. Evaluate your current budgeting process and determine whether the more detailed analysis of ABB is required. Companies with simple cost structures and fewer departments may not need it. 


Each member of your team needs to understand that there will be extensive training involved to learn how to do activity-based budgeting. You’ll also need tools for spend management with features like auto-categorization and expense tracking. This is all part of the “getting organized” portion of this exercise.  


Once the decision has been made and training is complete, the next step is to identify activities that incur costs and assign units to measure those costs. Calculate the cost per unit and multiple that by the activity level. Schedule regular meetings to evaluate those costs and uncover areas where they can be modified or reduced. 


In most cases, ABB is implemented as a temporary measure to streamline company costs. Once that’s done, most companies go back to more traditional budgeting practices. To learn more about this and to acquire the expense tracking and spend management tools you’ll need to be effective with activity-based budgeting, visit Ramp.com

The term activity-based budgeting is defined in our Ramp Finance Glossary.


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