Accrued Interest Expense Entry: Journal Entry and Example

An accrued interest expense entry records interest that has accumulated on a debt but has not yet been paid. For the borrower, the usual adjusting entry is a debit to Interest Expense and a credit to Interest Payable; the calculator below estimates the amount from principal, annual rate, and elapsed days.

Formula

For a simple-interest estimate, accrued interest equals principal multiplied by the annual rate and the fraction of a year elapsed:

Accrued interest = P × (APR ÷ 100) × (d ÷ 365)

• P is the outstanding principal balance in dollars.
• APR is the annual interest rate entered as a percentage, such as 8 for 8%.
• d is the number of accrued days.
• 365 is the assumed number of days in the year for this calculator.

The output is rounded to cents. It represents the estimated amount of interest expense and, in the basic borrower entry, the amount credited to Interest Payable. The calculator assumes a constant principal balance, a constant rate, and simple daily accrual. Loan documents or accounting policies may use a different day-count convention, compounding method, or accrual interval.

Worked Example

Using the calculator’s default inputs—$20,000 principal, an 8% annual rate, and 30 days—the calculation is:

1. Convert the annual rate to a decimal: 8 ÷ 100 = 0.08.
2. Find the fraction of the assumed year: 30 ÷ 365 ≈ 0.0821918.
3. Multiply: $20,000 × 0.08 × 30 ÷ 365 ≈ $131.5068.
4. Round to cents: accrued interest expense = $131.51.

The corresponding adjusting journal entry is:

• Debit Interest Expense: $131.51
• Credit Interest Payable: $131.51

Debits and credits are equal, so the entry balances. The expense increases on the income statement, while the payable increases on the balance sheet. When the interest is later paid, the payment entry generally debits Interest Payable for the amount already accrued and credits Cash. If the payment includes additional interest that has accrued since the adjustment, that additional portion is recorded as Interest Expense as well.

Why the Entry Is Needed

Under accrual accounting, expenses are generally recorded in the period in which they are incurred, rather than only when cash changes hands. Borrowing creates interest over time. If a reporting period ends between loan payments, some interest may have accumulated even though the lender has not yet received payment. An adjusting entry recognizes that cost and the related obligation in the period it belongs to.

For example, a business may make loan payments monthly while preparing financial statements at month-end—or may have a reporting date that falls between payment dates. Leaving out accrued interest can understate both interest expense and liabilities for the period. The entry is typically recorded at the reporting date and then settled or reversed according to the organization’s accounting process.

How to Record and Reconcile It

First identify the balance that earns interest, the rate that applies, and the dates covered by the accrual. Then calculate the amount using the applicable loan terms or accounting convention. Record a debit to Interest Expense and a credit to Interest Payable for the same amount. Keep the calculation and source documents with the journal entry so the amount can be checked later.

At payment, compare the lender’s statement with the payable balance. A payment may cover a different number of days than the estimate, or the principal may have changed during the period. The account should reflect the actual amount due, not simply a repeated estimate. If the payable is understated or overstated, record the difference in the appropriate period based on the entity’s accounting procedures.

Common Variations and Mistakes

The debit-and-credit pattern depends on whose books are being considered. A borrower records interest expense and a liability. A lender that has earned interest but has not collected it generally records interest revenue and an interest receivable instead. Calling either balance “accrued interest” does not make the accounts interchangeable.

• Confusing expense with payment: The adjusting entry recognizes interest incurred; it does not record a cash payment.
• Using the wrong principal: Calculate on the balance that actually bore interest during the period. If principal changed, separate date ranges may be needed.
• Mixing rate formats: Enter 8 for 8%, not 0.08. The calculator converts the percentage to a decimal.
• Assuming every year has 365 days: Some agreements use a different day-count basis or exact calendar-day convention. Follow the applicable terms.
• Rounding too early: Keep adequate precision during calculation and round the final entry in line with the organization’s accounting practice.
• Recording the same expense twice: Check whether the payment entry or an automated system has already recognized the interest before making an adjustment.

Another common question is whether an accrued expense is the same as interest payable. They are connected but describe different aspects: Interest Expense is the period’s cost, while Interest Payable is the liability for interest owed and not yet paid. In the basic adjusting entry, they have the same dollar amount.

Assumptions and Limits

• The calculator uses simple interest and a 365-day year.
• Principal and annual rate are treated as constant throughout the accrued days.
• It does not model compounding, variable rates, partial principal repayments, fees, or a lender’s specific billing method.
• It estimates the journal-entry amount; it does not determine the accounting treatment required for a particular entity or reporting framework.

For a changing balance, calculate each interval separately using the balance and rate that applied during that interval, then add the results. For a precise posting, compare the calculation with the debt agreement, lender statement, and the organization’s accounting policy.

Frequently Asked Questions

What is the journal entry for accrued interest expense?
For a borrower’s adjusting entry, debit Interest Expense and credit Interest Payable for the interest incurred but unpaid at the reporting date.

Is accrued interest expense a debit or a credit?
Interest Expense is debited to record the cost. Interest Payable is credited to record the liability.

How do I calculate accrued interest?
For simple interest, multiply the principal by the annual rate as a decimal and by the fraction of the year elapsed. Confirm the day-count and compounding method that applies.

What is the entry when accrued interest is paid?
Generally, debit Interest Payable and credit Cash for the amount previously accrued. Record any additional interest not already accrued as Interest Expense.

Does accrued interest expense go on the balance sheet?
The expense appears in the income statement; the unpaid amount recorded as Interest Payable appears as a liability on the balance sheet.

This calculator is an educational estimate; the loan agreement and lender’s statement determine the exact interest figures.

Related

• Borrowing on a HELOC: Estimate Your Monthly Payment
• Borrowing Money From Home Equity: Costs and Risks
• Borrowing on Home Equity for Renovation Costs

in p | Principal balance | $ | 20000 | 0.01 | 100000000
in apr | Annual interest rate | % | 8 | 0.01 | 100
in days | Accrued days | days | 30 | 0 | 366
out exp | Accrued interest expense | $ | p * (apr / 100) * days / 365 | 2
out pay | Interest payable | $ | exp | 2