what is cost accumulation and cost assignment

Module 5: Job Order Costing

Introduction to accumulating and assigning costs, what you will learn to do: assign costs to jobs.

Financial and managerial accountants record costs of production in an account called Work in Process. The total of these direct materials, direct labor, and factory overhead costs equal the cost of producing the item.

In order to understand the accounting process, here is a quick review of how financial accountants record transactions:

Let’s take as simple an example as possible. Jackie Ma has decided to make high-end custom skateboards. She starts her business on July 1 by filing the proper forms with the state and then opening a checking account in the name of her new business, MaBoards. She transfers $150,000 from her retirement account into the business account and records it in a journal as follows:

For purposes of this ongoing example, we’ll ignore pennies and dollar signs, and we’ll also ignore selling, general, and administrative costs.

After Jackie writes the journal entry, she posts it to a ledger that currently has only two accounts: Checking Account, and Owner’s Capital.

Debits are entries on the left side of the account, and credits are entries on the right side.

Here is a quick review of debits and credits:

You can view the transcript for “Colin Dodds – Debit Credit Theory (Accounting Rap Song)” here (opens in new window) .

Also, this system of debits and credits is based on the following accounting equation:

Assets = Liabilities + Equity.

• Assets are resources that the company owns
• Liabilities are debts
• Equity is the amount of assets left over after all debts are paid

Let’s look at one more initial transaction before we dive into recording and accumulating direct costs such as materials and labor.

Jackie finds the perfect building for her new business; an old woodworking shop that has most of the equipment she will need. She writes a check from her new business account in the amount of $2,500 for July rent. Because she took managerial accounting in college, she determines this to be an indirect product expense, so she records it as Factory Overhead following a three-step process:

• Analyze transaction

Because her entire facility is devoted to production, she determines that the rent expense is factory overhead.

2. Journalize transaction using debits and credits

If she is using QuickBooks ® or other accounting software, when she enters the transaction into the system, the software will create the journal entry. In any case, whether she does it by hand or computer, the entry will look much like this:

3. Post to the ledger

Again, her computer software will post the journal entry to the ledger, but we will follow this example using a visual system accountants call T-accounts. The T-account is an abbreviated ledger. Click here to view a more detailed example of a ledger .

Jackie posts her journal entry to the ledger (T-accounts here).

She now has three accounts: Checking Account, Owner’s Capital, and Factory Overhead, and the company ledger looks like this:

In a retail business, rent, salaries, insurance, and other operating costs are categorized into accounts classified as expenses. In a manufacturing business, some costs are classified as product costs while others are classified as period costs (selling, general, and administrative).

We’ll treat factory overhead as an expense for now, which is ultimately a sub-category of Owner’s Equity, so our accounting equation now looks like this:

Assets = Liabilities + Owner’s Equity

147,500 = 150,000 – 2,500

Notice that debits offset credits and vice versa. The balance in the checking account is the original deposit of $150,000, less the check written for $2,500. Once the check clears, if Jackie checks her account online, she’ll see that her ledger balance and the balance the bank reports will be the same.

Here is a summary of the rules of debits and credits:

Assets = increased by a debit, decreased by a credit

Liabilities = increased by a credit, decreased by a debit

Owner’s Equity = increased by a credit, decreased by a debit

Revenues increase owner’s equity, therefore an individual revenue account is increased by a credit, decreased by a debit

Expenses decrease owner’s equity, therefore an individual expense account is increased by a debit, decreased by a credit

Here’s Colin Dodds’s Accounting Rap Song again to help you remember the rules of debits and credits:

Let’s continue to explore job costing now by using this accounting system to assign and accumulate direct and indirect costs for each project.

When you are done with this section, you will be able to:

• Record direct materials and direct labor for a job
• Record allocated manufacturing overhead
• Prepare a job cost record

Learning Activities

The learning activities for this section include the following:

• Reading: Direct Costs
• Self Check: Direct Costs
• Reading: Allocated Overhead
• Self Check: Allocated Overhead
• Reading: Subsidiary Ledgers and Records
• Self Check: Subsidiary Ledgers and Records
• Introduction to Accumulating and Assigning Costs. Authored by : Joseph Cooke. Provided by : Lumen Learning. License : CC BY: Attribution
• Colin Dodds - Debit Credit Theory (Accounting Rap Song). Authored by : Mr. Colin Dodds. Located at : https://youtu.be/j71Kmxv7smk . License : All Rights Reserved . License Terms : Standard YouTube License
• What the General Ledger Can Tell You About Your Business. Authored by : Mary Girsch-Bock. Located at : https://www.fool.com/the-blueprint/general-ledger/ . License : All Rights Reserved . License Terms : Standard YouTube License

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Cost Accumulation

Written by True Tamplin, BSc, CEPF®

Reviewed by subject matter experts.

Updated on April 18, 2024

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Table of Contents

How does it work, why do we accumulate costs, why should you care about cost accumulation, reducing the amount of costs that we accumulate, benefits of cost accumulation, cost accumulation vs savings account, the pros and cons of cost accumulation, final thoughts, cost accumulation faqs, what is cost accumulation.

Cost Accumulation is the process of tracking and recording costs incurred in a business or organization, including both direct and indirect expenses.

How does Cost Accumulation help businesses?

Cost Accumulation helps businesses measure their financial performance, ensure compliance with relevant regulations, and control their costs by providing visibility into the cost structure.

What expenses are included in Cost Accumulation?

Cost Accumulation includes both direct and indirect expenses, such as overhead costs, materials, wages & salaries, subcontractor fees, taxes & insurance, and any other costs associated with running the business.

What information is tracked by Cost Accumulation?

Cost Accumulation tracks and records all expenses associated with running a business, including costs incurred at different stages of production, and any other relevant data related to the costs.

How often should Cost Accumulation be performed?

Cost Accumulation should be performed on a regular basis, ideally at least once a month, to ensure an accurate record of the business's financial performance. In addition, all documents should be reviewed regularly and updated as necessary.

About the Author

True Tamplin, BSc, CEPF®

True Tamplin is a published author, public speaker, CEO of UpDigital, and founder of Finance Strategists.

True is a Certified Educator in Personal Finance (CEPF®), author of The Handy Financial Ratios Guide , a member of the Society for Advancing Business Editing and Writing, contributes to his financial education site, Finance Strategists, and has spoken to various financial communities such as the CFA Institute, as well as university students like his Alma mater, Biola University , where he received a bachelor of science in business and data analytics.

To learn more about True, visit his personal website or view his author profiles on Amazon , Nasdaq and Forbes .

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Cost Accumulation

Cost accumulation refers to the systematic process of recording, classifying, and summarizing costs incurred by a business entity for the purpose of monitoring and controlling expenses. It involves the collection of cost data from various sources and the subsequent allocation and assignment of these costs to specific products, services, or other cost objects. Cost accumulation is an essential component of financial accounting and managerial decision-making, providing crucial information for evaluating profitability, determining pricing strategies, and assessing the efficiency of operations.

Description:

In the realm of finance, cost accumulation is a fundamental practice that enables organizations to track and analyze their expenditures systematically. By collecting data on the costs associated with materials, labor, overheads, and other resources, businesses can gain insights into their cost structure and identify areas of inefficiency or potential cost savings. This information is vital for effective financial planning, budgeting, and cost control.

The process of cost accumulation typically begins with the identification and collection of relevant cost data. This data can be sourced from various areas such as purchase invoices, payroll records, utility bills, and other financial documents. It is crucial to ensure the accuracy and completeness of the data obtained, as any errors or omissions can lead to distorted cost information and subsequent decision-making.

Once the data is gathered, the next step in cost accumulation is to classify and allocate the costs to different cost categories. This involves categorizing costs into direct and indirect categories and determining the most appropriate allocation basis for each cost type. Direct costs can be easily traced to a specific product or service, while indirect costs require allocation based on reasonable and consistent methods such as activity-based costing or cost drivers.

After the allocation process, the accumulated costs are then assigned to specific cost objects, such as products, services, projects, or departments. This enables businesses to ascertain the actual costs associated with each cost object, providing a basis for determining product or service profitability, evaluating the performance of different business units, or assessing the financial viability of various projects.

Moreover, cost accumulation plays a pivotal role in the field of managerial accounting, where it facilitates the calculation of product costs for inventory valuation and financial reporting purposes. The cost accumulation process can involve various methods, such as job costing, process costing, or activity-based costing, depending on the nature of the business and the level of cost detail required.

By implementing effective cost accumulation practices, organizations can derive several benefits. Firstly, it allows for better cost control, as the detailed knowledge of costs helps management identify areas of wasteful expenditure and implement measures to reduce costs. Secondly, cost accumulation assists in strategic decision-making, enabling businesses to evaluate the profitability and feasibility of new ventures, product lines, or pricing strategies. Additionally, it provides a basis for performance measurement and evaluation, allowing companies to monitor their financial performance against predetermined targets or industry benchmarks.

In conclusion, cost accumulation is an integral function within the domains of finance, accounting, and business management. It serves as a foundation for financial analysis and decision-making, providing valuable insights into the cost structure and performance of an organization. By utilizing systematic cost accumulation techniques, businesses can enhance their financial management capabilities, optimize resource allocation, and strive towards improved profitability and success.

What is Cost Assignment?

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Cost assignment.

Cost assignment is the process of associating costs with cost objects, such as products, services, departments, or projects. It encompasses the identification, measurement, and allocation of both direct and indirect costs to ensure a comprehensive understanding of the resources consumed by various cost objects within an organization. Cost assignment is a crucial aspect of cost accounting and management accounting, as it helps organizations make informed decisions about pricing, resource allocation, budgeting, and performance evaluation.

There are two main components of cost assignment:

• Direct cost assignment: Direct costs are those costs that can be specifically traced or identified with a particular cost object. Examples of direct costs include direct materials, such as raw materials used in manufacturing a product, and direct labor, such as the wages paid to workers directly involved in producing a product or providing a service. Direct cost assignment involves linking these costs directly to the relevant cost objects, typically through invoices, timesheets, or other documentation.
• Indirect cost assignment (Cost allocation): Indirect costs, also known as overhead or shared costs, are those costs that cannot be directly traced to a specific cost object or are not economically feasible to trace directly. Examples of indirect costs include rent, utilities, depreciation, insurance, and administrative expenses. Since indirect costs cannot be assigned directly to cost objects, organizations use various cost allocation methods to distribute these costs in a systematic and rational manner. Some common cost allocation methods include direct allocation, step-down allocation, reciprocal allocation, and activity-based costing (ABC).

In summary, cost assignment is the process of associating both direct and indirect costs with cost objects, such as products, services, departments, or projects. It plays a critical role in cost accounting and management accounting by providing organizations with the necessary information to make informed decisions about pricing, resource allocation, budgeting, and performance evaluation.

Example of Cost Assignment

Let’s consider an example of cost assignment at a bakery called “BreadHeaven” that produces two types of bread: white bread and whole wheat bread.

BreadHeaven incurs various direct and indirect costs to produce the bread. Here’s how the company would assign these costs to the two types of bread:

• Direct cost assignment:

Direct costs can be specifically traced to each type of bread. In this case, the direct costs include:

• Direct materials: BreadHeaven purchases flour, yeast, salt, and other ingredients required to make the bread. The cost of these ingredients can be directly traced to each type of bread.
• Direct labor: BreadHeaven employs bakers who are directly involved in making the bread. The wages paid to these bakers can be directly traced to each type of bread based on the time spent working on each bread type.

For example, if BreadHeaven spent $2,000 on direct materials and $1,500 on direct labor for white bread, and $3,000 on direct materials and $2,500 on direct labor for whole wheat bread, these costs would be directly assigned to each bread type.

• Indirect cost assignment (Cost allocation):

Indirect costs, such as rent, utilities, equipment maintenance, and administrative expenses, cannot be directly traced to each type of bread. BreadHeaven uses a cost allocation method to assign these costs to the two types of bread.

Suppose the total indirect costs for the month are $6,000. BreadHeaven decides to use the number of loaves produced as the allocation base , as it believes that indirect costs are driven by the production volume. During the month, the bakery produces 3,000 loaves of white bread and 2,000 loaves of whole wheat bread, totaling 5,000 loaves.

The allocation rate per loaf is:

Allocation Rate = Total Indirect Costs / Total Loaves Allocation Rate = $6,000 / 5,000 loaves = $1.20 per loaf

BreadHeaven allocates the indirect costs to each type of bread using the allocation rate and the number of loaves produced:

• White bread: 3,000 loaves × $1.20 per loaf = $3,600
• Whole wheat bread: 2,000 loaves × $1.20 per loaf = $2,400

After completing the cost assignment, BreadHeaven can determine the total costs for each type of bread:

• White bread: $2,000 (direct materials) + $1,500 (direct labor) + $3,600 (indirect costs) = $7,100
• Whole wheat bread: $3,000 (direct materials) + $2,500 (direct labor) + $2,400 (indirect costs) = $7,900

By assigning both direct and indirect costs to each type of bread, BreadHeaven gains a better understanding of the full cost of producing each bread type, which can inform pricing decisions, resource allocation, and performance evaluation.

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• Cost Classifications
• Relevant Cost of Material
• Manufacturing Overhead Costs
• Conversion Costs
• Quality Costs
• Revenue Expenditure
• Product Cost vs Period Cost
• Direct Costs and Indirect Costs
• Prime Costs and Conversion Costs
• Relevant vs Irrelevant Costs
• Avoidable and Unavoidable Costs
• Cost Allocation
• Joint Products
• Accounting for Joint Costs
• Service Department Cost Allocation
• Repeated Distribution Method
• Simultaneous Equation Method
• Specific Order of Closing Method
• Direct Allocation Method

Cost allocation is the process by which the indirect costs are distributed among different cost objects such as a project, a department, a branch, a customer, etc. It involves identifying the cost object, identifying and accumulating the costs that are incurred and assigning them to the cost object on some reasonable basis.

Cost allocation is important for both pricing and planning and control decisions. If costs are not accurately calculated, a business might never know which products are making money and which ones are losing money. If cost are mis-allocated, a business may be charging wrong price to its customers and/or it might be wasting resources on products that are wrongly categorized as profitable.

Cost allocation is a sub-process of cost assignment , which is the overall process of finding total cost of a cost object. Cost assignment involves both cost tracing and cost allocation. Cost tracing encompasses finding direct costs of a cost object while the cost allocation is concerned with indirect cost charge.

Steps in cost allocation process

Typical cost allocation mechanism involves:

• Identifying the object to which the costs have to be assigned,
• Accumulating the costs in different pools,
• Identifying the most appropriate basis/method for allocating the cost.

Cost object

A cost object is an item for which a business need to separately estimate cost.

Examples of cost object include a branch, a product line, a service line, a customer, a department, a brand, a project, etc.

A cost pool is the account head in which costs are accumulated for further assignment to cost objects.

Examples of cost pools include factory rent, insurance, machine maintenance cost, factory fuel, etc. Selection of cost pool depends on the cost allocation base used. For example if a company uses just one allocation base say direct labor hours, it might use a broad cost pool such as fixed manufacturing overheads. However, if it uses more specific cost allocation bases, for example labor hours, machine hours, etc. it might define narrower cost pools.

Cost driver

A cost driver is any variable that ‘drives’ some cost. If increase or decrease in a variable causes an increase or decrease is a cost that variable is a cost driver for that cost.

Examples of cost driver include:

• Number of payments processed can be a good cost driver for salaries of Accounts Payable section of accounting department,
• Number of purchase orders can be a good cost driver for cost of purchasing department,
• Number of invoices sent can be a good cost driver for cost of billing department,
• Number of units shipped can be a good cost driver for cost of distribution department, etc.

While direct costs are easily traced to cost objects, indirect costs are allocated using some systematic approach.

Cost allocation base

Cost allocation base is the variable that is used for allocating/assigning costs in different cost pools to different cost objects. A good cost allocation base is something which is an appropriate cost driver for a particular cost pool.

T2F is a university café owned an operated by a student. While it has plans for expansion it currently offers two products: (a) tea & coffee and (b) shakes. It employs 2 people: Mr. A, who looks after tea & coffee and Mr. B who prepares and serves shakes & desserts.

Its costs for the first quarter are as follows:

Total tea and coffee sales and shakes sales were $50,000 & $60,000 respectively. Number of customers who ordered tea or coffee were 10,000 while those ordering shakes were 8,000.

The owner is interested in finding out which product performed better.

Salaries of Mr. A & B and direct materials consumed are direct costs which do not need any allocation. They are traced directly to the products. The rest of the costs are indirect costs and need some basis for allocation.

Cost objects in this situation are the products: hot beverages (i.e. tea & coffee) & shakes. Cost pools include rent, electricity, music, internet and wi-fi subscription and magazines.

Appropriate cost drivers for the indirect costs are as follows:

Since number of customers is a good cost driver for almost all the costs, the costs can be accumulated together to form one cost pool called manufacturing overheads. This would simply the cost allocation.

Total manufacturing overheads for the first quarter are $19,700. Total number of customers who ordered either product are 18,000. This gives us a cost allocation base of $1.1 per customer ($19,700/18,000).

A detailed cost assignment is as follows:

Manufacturing overheads allocated to Tea & Cofee = $1.1×10,000

Manufacturing overheads allocated to Shakes = $1.1×8,000

by Irfanullah Jan, ACCA and last modified on Jul 22, 2020

Related Topics

• Cost Behavior

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What Is Activity-Based Costing (ABC)?

How activity-based costing (abc) works, requirements for activity-based costing (abc), benefits of activity-based costing (abc).

• Corporate Finance

Activity-Based Costing (ABC): Method and Advantages Defined with Example

Activity-based costing (ABC) is a costing method that assigns overhead and indirect costs to related products and services. This accounting method of costing recognizes the relationship between costs, overhead activities, and manufactured products, assigning indirect costs to products less arbitrarily than traditional costing methods. However, some indirect costs, such as management and office staff salaries, are difficult to assign to a product.

Key Takeaways

• Activity-based costing (ABC) is a method of assigning overhead and indirect costs—such as salaries and utilities—to products and services. 
• The ABC system of cost accounting is based on activities, which are considered any event, unit of work, or task with a specific goal.
• An activity is a cost driver , such as purchase orders or machine setups. 
• The cost driver rate, which is the cost pool total divided by cost driver, is used to calculate the amount of overhead and indirect costs related to a particular activity. 

ABC is used to get a better grasp on costs, allowing companies to form a more appropriate pricing strategy. 

Investopedia / Theresa Chiechi

Activity-based costing (ABC) is mostly used in the manufacturing industry since it enhances the reliability of cost data, hence producing nearly true costs and better classifying the costs incurred by the company during its production process.

This costing system is used in target costing, product costing, product line profitability analysis, customer profitability analysis, and service pricing. Activity-based costing is used to get a better grasp on costs, allowing companies to form a more appropriate pricing strategy. 

The formula for activity-based costing is the cost pool total divided by cost driver, which yields the cost driver rate. The cost driver rate is used in activity-based costing to calculate the amount of overhead and indirect costs related to a particular activity. 

The ABC calculation is as follows:  

• Identify all the activities required to create the product. 
• Divide the activities into cost pools, which includes all the individual costs related to an activity—such as manufacturing. Calculate the total overhead of each cost pool.
• Assign each cost pool activity cost drivers, such as hours or units. 
• Calculate the cost driver rate by dividing the total overhead in each cost pool by the total cost drivers. 
• Divide the total overhead of each cost pool by the total cost drivers to get the cost driver rate. 
• Multiply the cost driver rate by the number of cost drivers. 

As an activity-based costing example, consider Company ABC that has a $50,000 per year electricity bill. The number of labor hours has a direct impact on the electric bill. For the year, there were 2,500 labor hours worked, which in this example is the cost driver. Calculating the cost driver rate is done by dividing the $50,000 a year electric bill by the 2,500 hours, yielding a cost driver rate of $20. For Product XYZ, the company uses electricity for 10 hours. The overhead costs for the product are $200, or $20 times 10.

Activity-based costing benefits the costing process by expanding the number of cost pools that can be used to analyze overhead costs and by making indirect costs traceable to certain activities. 

The ABC system of cost accounting is based on activities, which are any events, units of work, or tasks with a specific goal, such as setting up machines for production, designing products, distributing finished goods, or operating machines. Activities consume overhead resources and are considered cost objects.

Under the ABC system, an activity can also be considered as any transaction or event that is a cost driver. A cost driver, also known as an activity driver, is used to refer to an allocation base. Examples of cost drivers include machine setups, maintenance requests, consumed power, purchase orders, quality inspections, or production orders.

There are two categories of activity measures: transaction drivers, which involve counting how many times an activity occurs, and duration drivers, which measure how long an activity takes to complete.

Unlike traditional cost measurement systems that depend on volume count, such as machine hours and/or direct labor hours, to allocate indirect or overhead costs to products, the ABC system classifies five broad levels of activity that are, to a certain extent, unrelated to how many units are produced. These levels include batch-level activity , unit-level activity, customer-level activity, organization-sustaining activity, and product-level activity.

Activity-based costing (ABC) enhances the costing process in three ways. First, it expands the number of cost pools that can be used to assemble overhead costs. Instead of accumulating all costs in one company-wide pool, it pools costs by activity. 

Second, it creates new bases for assigning overhead costs to items such that costs are allocated based on the activities that generate costs instead of on volume measures, such as machine hours or direct labor costs. 

Finally, ABC alters the nature of several indirect costs, making costs previously considered indirect—such as depreciation , utilities, or salaries—traceable to certain activities. Alternatively, ABC transfers overhead costs from high-volume products to low-volume products, raising the unit cost of low-volume products.

Chartered Global Management Accountant. " Activity-Based Costing (ABC) ."

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cost accumulation

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The process of collecting costs as a product progresses through the production system, enabling the total cost of manufacture to be built up in a sequential fashion.

From:   cost accumulation   in  A Dictionary of Accounting »

Subjects: Social sciences — Business and Management

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