What Is Capitalized Interest?

Capitalized interest is the cost of borrowing to acquire or construct a long-term asset. Unlike an interest expense incurred for any other purpose, capitalized interest is not expensed immediately on the income statement of a company's financial statements. Instead, firms capitalize it, meaning the interest paid increases the cost basis of the related long-term asset on the balance sheet. Capitalized interest shows up in installments on a company's income statement through periodic depreciation expense recorded on the associated long-term asset over its useful life.

Understanding Capitalized Interest

Capitalized interest is part of the historical cost of acquiring assets that will benefit a company over many years. Because many companies finance the construction of long-term assets with debt, Generally Accepted Accounting Principles (GAAP) allow firms to avoid expensing interest on such debt and include it on their balance sheets as part of the historical cost of long-term assets.

Typical examples of long-term assets for which capitalizing interest is allowed include various production facilities, real estate, and ships. Capitalizing interest is not permitted for inventories that are manufactured repetitively in large quantities. U.S. tax laws also allow the capitalization of interest, which provides a tax deduction in future years through a periodic depreciation expense.

Capitalized Interest vs. Expensed Interest

From the perspective of accrual accounting, capitalizing interest helps tie the costs of using a long-term asset to earnings generated by the asset in the same periods of use. Capitalized interest can only be booked if its impact on a company's financial statements is material. Otherwise, interest capitalization is not required, and it should be expensed immediately.

When booked, capitalized interest has no immediate effect on a company's income statement, and instead, it appears on the income statement in subsequent periods through depreciation expense. The entry to record capitalized interest is a debit to the capitalized asset account and credit to cash (assuming the interest is paid); otherwise the credit is to the open liability until interest is paid.

In the long-term, both capitalized interest and expensed interest will have the same impact on a company's financial statements. It is important for a company to realize that short-term cash obligation may also be the same; if interest is due immediately, there will be the same cash outlay regardless of how interest is recorded. The only difference between capitalized interest and expensed interest is the timing in which the expense shows up on the income statement.

Capitalized Interest vs. Accrued Interest

Accrued interest is the amount of interest that has accumulated on a loan since the last payment was made. For example, if a borrower has a monthly payment on a loan and they miss a payment, interest will continue to accrue on the loan until the borrower makes their next payment. The interest that is due but has not yet been paid during that time is referred to as accrued interest.

In some cases, accrued interest and capitalized interest can be the same. For example, if an unpaid amount of interest is added to the balance of the principal, the amount of accrued interest is considered the same as the amount of capitalized interest.

However, the specific treatment of accrued interest does not always prevail itself to being capitalized. For example, a missed payment of interest could simply be a period expense that is immediately recognized on the income statement. In this case, the accrued interest that is due is not capitalized interest but instead set to be expensed immediately.

Capitalized Interest and Student Loans

Capitalized interest is also present in many student loans. Capitalized interest on student loans is the interest that accrues on a loan and is added to the principal balance of the loan. This can happen when the borrower is not making payments on the loan, and interest continues to accrue as is the case most often while the student is attending scholl.

In the case of student loans, the borrower may be in any sort of deferment period. However, interest can still accrue on the loan during that time. In some cases, this interest is then added to the principal balance of the loan, and the borrower is then responsible for paying interest on the higher principal balance (i.e. interest on interest).

It's important to note that not all student loans accrue interest during a deferment period, and some loans may have interest subsidies that cover the interest during that time. However, student borrowers must understand the implications of capitalized interest and respect the importance of how capitalized interest can affect their loan balance and repayment plan.

Example of Capitalized Interest

Consider a company that builds a small production facility worth $5 million with a useful life of 20 years. It borrows the amount to finance this project at an interest rate of 10%. The project will take a year to complete to put the building to its intended use, and the company is allowed to capitalize its annual interest expense on this project, which amounts to $500,000.

The company capitalizes interest by recording a debit entry of $500,000 to a fixed asset account and an offsetting credit entry to cash. At the end of construction, the company's production facility has a book value of $5.5 million, consisting of $5 million in construction costs and $500,000 in capitalized interest.

In the next year, when the production facility is used, the company books a straight-line depreciation expense of $275,000 ($5.5 million of the facility's book value divided by 20 years of useful life) of which $25,000 ($500,000 of capitalized interest divided by 20 years) is attributable to the capitalized interest.

The Bottom Line

Capitalized interest is the unpaid amount of interest that is added to the principal balance of a loan. Capital interest occurs when the borrower is not making payments on the loan and interest continues to accrue. When the interest is added to the principal balance, the borrower is then responsible for paying interest on the higher balance in future periods as the basis for the calculation of interest is higher. For student loans, borrowers may experience capitalized interest during deferment periods when they don't need to paying interest during school.