What is accumulated depreciation? Formula and examples

Published Friday 17 April 2026

Table of contents

• What is accumulated depreciation?
• Depreciation vs accumulated depreciation
• Is accumulated depreciation an asset or a liability?
• How to calculate accumulated depreciation
• How does accumulated depreciation affect financial statements?
• Why understanding accumulated depreciation matters for your business
• Simplify your accounting with Xero
• FAQs on accumulated depreciation

Key takeaways

• Calculate accumulated depreciation by tracking the total depreciation expense recorded since you purchased an asset, which reduces the asset's original value on your balance sheet to show its current book value.
• Recognize that accumulated depreciation is a contra asset account that reduces asset values without being a liability or true asset, helping provide lenders and investors with an accurate view of your assets' current worth.
• Apply the straight-line depreciation formula — (asset cost − salvage value) ÷ useful life — to find your annual depreciation, then add each year's amount to build your running total of accumulated depreciation.
• Use depreciation as a tax strategy since it reduces your taxable income without affecting cash flow, allowing you to pay less tax while maintaining accurate asset valuations for better financing opportunities.

What is accumulated depreciation?

Accumulated depreciation is the total depreciation expense recorded for an asset since you purchased it. This running total reduces the asset's original value on your balance sheet to show its current book value.

Tracking accumulated depreciation helps you understand what your assets are worth today after wear and tear. The formula is straightforward: asset cost minus accumulated depreciation equals book value.

Here are two examples to show how accumulated depreciation works:

• Office furniture: Cost $5,000 with $1,000 depreciation each year. After three years, accumulated depreciation totals $3,000, leaving a book value of $2,000.
• Machinery: Cost $25,000 with $2,500 depreciation each year. After six years, accumulated depreciation totals $15,000, leaving a book value of $10,000.

Depreciation vs accumulated depreciation

Depreciation is the expense recorded each period that reduces your asset's value. Accumulated depreciation is the running total of all depreciation recorded since you purchased the asset.

The key difference: depreciation applies to a single period, while accumulated depreciation grows over time as each period's expense adds to the total.

Learn more about depreciation

Is accumulated depreciation an asset or a liability?

Accumulated depreciation is a contra asset account, not an asset or liability:

• Reduces asset values: Lowers the original cost of assets on your balance sheet
• Creates no obligation: Requires no repayment or future settlement
• Provides no future benefit: Does not generate economic value on its own

Contra asset accounts offset the value of related assets to show their current worth after depreciation.

How to calculate accumulated depreciation

Calculate accumulated depreciation by adding up each period's depreciation expense. This guide uses the straight-line depreciation method, a common approach for small business bookkeeping.

For tax purposes, the Internal Revenue Service (IRS) generally requires the Modified Accelerated Cost Recovery System (MACRS) for property placed in service after 1986, whereas older assets placed in service before 1987 must use the Accelerated Cost Recovery System (ACRS).

The straight line depreciation calculation

Straight-line depreciation formula: Annual depreciation expense = (asset cost − salvage value) ÷ useful life

Here's what each component means:

• Asset cost: The original purchase price of the asset
• Salvage value: The estimated resale or scrap value when the asset is no longer useful
• Useful life: The expected number of years you'll use the asset before replacing it

According to the IRS, an asset must be expected to last more than one year to qualify for depreciation.

Calculate straight line depreciation

Here's an example using an asset that costs $1,000, has a useful life of five years, and a salvage value of $100.

1. Calculate annual depreciation: ($1,000 − $100) ÷ 5 = $180 per year
2. Track accumulated depreciation by year: Year one: $180 / Year two: $360 / Year three: $540 / Year four: $720 / Year five: $900
3. Calculate book value: Asset cost − accumulated depreciation = book value. After three years: $1,000 − $540 = $460 book value

How does accumulated depreciation affect financial statements?

Accumulated depreciation on the balance sheet

Accumulated depreciation appears on your balance sheet as a contra asset, reducing your assets from their original purchase price to their current book value.

This gives lenders and investors a clear view of what your assets are worth today. The Securities and Exchange Commission (SEC) has historically required some companies to provide detailed schedules of accumulated depreciation for greater transparency, specifically when the property, plant, and equipment account exceeded 25 percent of total assets.

Accumulated depreciation on the income statement

Depreciation expense appears on your income statement and reduces your taxable income. As a non-cash expense, it lowers your reported profits without affecting your actual cash flow.

Accumulated depreciation on the cash flow statement

Depreciation does not involve cash leaving your business, so you add it back to net income on the cash flow statement. This adjustment shows that depreciation is an accounting expense, not an actual cash outflow.

Check with your local tax authority or review IRS Publication 946 to understand how depreciation rules apply to your business.

Why understanding accumulated depreciation matters for your business

Understanding accumulated depreciation helps your business in three key ways:

• Plan ahead: Track asset values over time to schedule replacements, upgrades, and maintenance before equipment fails.
• Reduce taxes: Lower your taxable income through depreciation expenses and keep more cash in your business. The IRS lets you elect a special depreciation allowance for certain qualified properties, which has been updated so that the allowance is 100% for property acquired and placed in service after January 19, 2025.
• Improve financing: Present accurate asset values on your balance sheet to strengthen loan applications and attract investors.

Simplify your accounting with Xero

Simplify depreciation tracking with Xero accounting software, which streamlines your accounting processes and helps you manage your assets. Create detailed depreciation schedules to get a clear view of fixed asset values and improve your financial reporting.

Get one month free and see how you can streamline your business accounting.

FAQs on accumulated depreciation

Here are answers to common questions about accumulated depreciation.

How does accumulated depreciation affect cash flow?

Accumulated depreciation does not affect cash flow directly since no money leaves your business. However, the depreciation expense reduces your taxable income, which lowers your tax bill and keeps more cash available.

What happens to an asset's accumulated depreciation when you sell it?

Remove both the asset and its accumulated depreciation from your balance sheet when you sell it. Compare the book value (asset cost minus accumulated depreciation) to the sale price to determine whether you have a gain or loss on the sale.

What is the journal entry for accumulated depreciation?

The journal entry debits depreciation expense and credits accumulated depreciation for the same amount. Learn more about double-entry bookkeeping and debits and credits. For example, if your annual depreciation is $1,000, debit depreciation expense $1,000 and credit accumulated depreciation $1,000. Xero automates these entries when you set up depreciation schedules.

Do I record accumulated depreciation as a debit or a credit?

Record accumulated depreciation as a credit on the balance sheet. Since assets carry debit balances, the credit entry for accumulated depreciation offsets the asset's value and reflects its declining worth over time.

Is accumulated depreciation a current liability?

Accumulated depreciation is not a current liability. Current liabilities are debts due within 12 months, while accumulated depreciation is a contra asset that reduces your asset values over time. You don't owe this amount to anyone.