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What is Interest Payable and How Do You Calculate It?

12/04/2025

Interest payable is a current liability representing accrued interest expense that a company owes but has not yet paid as of the balance sheet date. Understanding this account is critical for accurate financial reporting and assessing a company's short-term debt obligations. This article explains what interest payable is, how it differs from interest expense, and provides a step-by-step guide to its calculation.

What is Interest Payable?

Interest Payable (IP) is a liability account on a company's balance sheet that records the amount of interest incurred on debts—such as loans, bonds, or capital leases—that has been accrued but not yet paid by the balance sheet date. It is classified as a current liability because it is typically due within one year. A high interest payable balance can signal to stakeholders that a company may be facing challenges in meeting its short-term debt obligations, which could impact its liquidity.

How is Interest Payable Different from Interest Expense?

While both terms relate to the cost of borrowing, they serve different purposes in accounting. The key distinctions are outlined in the table below.

FeatureInterest PayableInterest Expense
MeaningThe unpaid interest owed as of the balance sheet date.The total cost of interest incurred over a reporting period, regardless of payment status.
Account TypeA liability account found on the Balance Sheet.An expense account found on the Income Statement.
Calculation BasisAmount accrued but not yet paid (Principal x Rate x Time).Total interest cost incurred during the period.

For example, a company with an annual interest expense of $35,000 might only have an interest payable of $2,916.66 on its monthly balance sheet ($35,000 / 12 months). This shows that interest expense reflects the total cost, while interest payable shows the short-term obligation.

How to Calculate Interest Payable in 5 Steps?

Calculating interest payable involves a straightforward formula. Based on our assessment experience, following these steps ensures accuracy.

Step 1: Identify the Principal Amount Determine the outstanding principal of the loan or note payable. This is the original amount borrowed that has not yet been repaid.

Step 2: Convert the Annual Interest Rate to a Decimal Take the stated annual interest rate and convert it to a decimal for calculation. For instance, an annual rate of 6% becomes 0.06.

Step 3: Determine the Accrual Period Identify the time period for which interest has accrued but not been paid. This is typically a fraction of a year. For monthly accruals, divide by 12; for quarterly, divide by 4.

Step 4: Calculate the Periodic Interest Rate Divide the annual rate (in decimal form) by the number of periods in a year. For a monthly calculation: 0.06 / 12 = 0.005.

Step 5: Apply the Formula Multiply the principal by the periodic interest rate to find the interest payable. Formula: Interest Payable = Principal x (Annual Interest Rate / Periods per Year)

Example Calculation: A company borrows $30,000 at a 6% annual interest rate. The interest payable for one month is calculated as:

  • $30,000 (Principal) x (0.06 / 12) = $30,000 x 0.005 = $150.00

In summary, accurately managing your interest payable is essential for transparent financial statements. Key takeaways include: Interest payable is a crucial current liability on the balance sheet, it is distinct from the total interest expense on the income statement, and its calculation using the formula Principal x Rate x Time is fundamental for financial accuracy. Properly accounting for this liability provides a clearer picture of a company's financial health.

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