What Type of Account Is Accumulated Depreciation?

The short answer: a contra asset account

Accumulated depreciation is a contra asset. Assets normally carry debit balances, and a contra asset carries a credit balance that offsets them.

Most asset accounts, such as equipment or vehicles, have debit balances. A contra account does the opposite. Accumulated depreciation has a credit balance, which cancels part of the asset's original cost on the balance sheet.

It is not an expense account, and it is not a liability. The expense happens in a different account, called depreciation expense, that appears on the income statement. Accumulated depreciation is the running total of that expense over the asset's life. For the basic bookkeeping vocabulary, see assets, liabilities and equity.

How it appears on the balance sheet

The balance sheet lists the asset at original cost, then subtracts accumulated depreciation to show net book value.

Here is an illustrative presentation for a delivery van:

The van still appears at its $40,000 cost. Accumulated depreciation shows how much of that cost has been used up so far. The difference is the net book value, sometimes called carrying value. It is an accounting figure, not necessarily what the van would sell for today.

Why accountants use a separate account

Keeping accumulated depreciation separate preserves the original cost on record while showing how much has been written off, which helps with planning and audits.

You could reduce the asset account directly each year. Instead, accountants keep the cost and the offset side by side. That gives readers of the statements more information:

• You can see what you paid.
• You can see how much of the asset's life has been used.
• You can estimate when replacement may be due.
• Lenders reviewing your financials get a clearer picture of asset age.

The total of accumulated depreciation grows each period until it reaches the asset's depreciable amount, or until you sell or dispose of the asset.

One practical point for owners: because accumulated depreciation only grows, an older asset base shows a large offset on the balance sheet. A lender reading your statements may take that as a sign that equipment is aging and replacement spending is coming. Having a replacement plan ready, with an estimated cost and a payback estimate, answers that question before it is asked.

Also remember that depreciation is an estimate of use over time. Assets can wear out faster or slower than the schedule says, and your records should be reviewed each year to confirm the useful life and salvage value assumptions still make sense.

The journal entry, step by step

Each period you debit depreciation expense and credit accumulated depreciation for the same amount.

Suppose the $40,000 van is expected to last five years with no salvage value, depreciated by the straight-line method. That is $8,000 a year. The yearly entry is:

1. Debit Depreciation Expense, $8,000. This reduces profit on the income statement.
2. Credit Accumulated Depreciation, $8,000. This increases the contra asset on the balance sheet.

After two years, accumulated depreciation is $16,000, matching the table above. If you want more on the debit-and-credit mechanics, read debits vs. credits and recording journal entries.

Depreciation methods that change the numbers

The method you choose affects how fast accumulated depreciation builds. Straight-line is even each year. Accelerated and units-of-production methods front-load or follow usage.

Common methods:

• Straight-line. The same expense every year. Simple and predictable.
• Declining balance. Larger expense early, smaller later.
• Units of production. Expense follows use, such as miles driven or machine hours. See units-of-production depreciation.
• MACRS. The tax depreciation system in the United States. See understanding MACRS.

Book depreciation and tax depreciation often differ. Your accountant can keep both schedules. Rules and limits change, so confirm current tax treatment with a professional or the IRS.

What happens when you sell or retire the asset

When an asset is sold or scrapped, you remove both its cost and its accumulated depreciation, then record a gain or loss based on the sale price versus book value.

Say you sell the van after two years for $27,000. Net book value was $24,000. The entry removes the $40,000 cost, removes the $16,000 accumulated depreciation and records $27,000 received. The $3,000 difference is a gain on the sale. Had you sold it for $20,000, you would record a $4,000 loss. Tax treatment of such gains is its own topic, so ask your accountant.

If you plan to replace equipment, think about how you will pay. A equipment financing arrangement can spread a new purchase over its useful life. ROI Funder considers 500+ FICO, 6+ months in business and $20,000+ monthly revenue, and our general guide, the guide to year-by-year depreciation, shows the schedule in more detail.