Amortization vs. depreciation: Key differences explained

Amortization vs. depreciation comes down to the asset: depreciation spreads the cost of a tangible asset over its useful life, and amortization does the same for an intangible one.

What changes between them is the method you pick, whether salvage value applies, which tax rules govern the deduction, and how each schedule runs in your ledger. Both feed the depreciation and amortization line on your income statement, so a wrong call on either one misstates expense every period.

Amortization vs. depreciation at a glance

Both are non-cash expenses that allocate an asset's cost over its useful life, and they differ mainly in the kind of asset they apply to.

Salvage value and method choice cause the most mix-ups. Depreciation subtracts an estimated salvage value before spreading the cost, but a patent or license has nothing left to sell when it expires.

Method choice follows the same logic. You might pick an accelerated method for equipment that loses most of its value early, while intangibles run straight-line because their benefit arrives evenly over the term. Set salvage to zero on intangibles unless a contract guarantees a buyer at the end of the asset's life.

Where the classification line falls: Tangible vs. intangible assets

If you can touch it and it wears out, depreciate it. If it's a legal or contractual right with a limited life, amortize it. Intangibles with an indefinite life, such as goodwill at a public company or a trademark you'll renew indefinitely, skip book amortization, and you test them for impairment instead.

• Land and buildings: Depreciate the building, but leave the land off the schedule. IRS Publication 946 says land can't be depreciated because it doesn't wear out.
• Internal-use software: Amortize capitalized development and implementation costs over the software's useful life once it's ready for use. Costs from the planning stage and post-launch training hit expense as you incur them.
• Leasehold improvements: Depreciate them, since they're tangible, over the shorter of the improvement's useful life or the remaining lease term for book.
• Patents, trademarks, customer lists, and non-competes: Amortize them over their legal or contractual life. A trademark you plan to renew indefinitely gets impairment testing instead.
• Goodwill: Public companies test it for impairment, and private companies can elect to amortize it on their books. Federal tax rules amortize acquired goodwill over 15 years, so expect a book-tax difference.
• Natural resources: Use depletion for oil, gas, timber, and mineral deposits. It expenses the cost as you extract the resource.

Make the call when you capitalize the asset, because changing it later means restating the schedule.

Capitalization vs. amortization vs. depreciation

Capitalization decides whether a cost becomes an asset at all, and depreciation or amortization decides how that asset's cost reaches expense over time. If you expense a cost right away, no schedule ever exists for it.

Your capitalization threshold policy sets the cutoff. Most policies capitalize a purchase only when it's above a dollar amount you set and has a useful life longer than 1 year. Pick the dollar amount with your auditors and apply it the same way every period.

A cost miscoded as expense never reaches a schedule, so check large purchases against your threshold every close.

Amortization vs. write-off

A write-off removes an asset's remaining book value in one entry, while amortization expenses its cost on a set schedule. You'll record a write-off after an impairment, a disposal, or an abandonment.

People often say "write-off" when they mean amortization expense, especially on the tax side, where writing off a cost means deducting it. That loose usage causes trouble when a manager hears "we wrote off the software" and expects a one-time loss, but the general ledger (GL) shows monthly amortization.

Save "write-off" for one-time removals in your close notes and board reporting.

Depreciation methods: MACRS, straight-line, and accelerated options

Most companies use straight-line depreciation on their books and MACRS on their federal tax return. IRS Publication 946 says MACRS is required for most property placed in service after 1986, so your tax schedule follows IRS tables whatever you choose for book.

Accelerated book methods push more expense into an asset's early years. You'd pick one when an asset loses most of its value or output early, such as delivery vans or production equipment.

Book and tax schedules for the same asset often differ. A server might run straight-line over 5 years on your books while MACRS front-loads the deduction on your return, and that gap is a book-tax difference.

Keep separate book and tax schedules for any asset where the methods differ.

Section 179 and bonus depreciation

Section 179 and bonus depreciation both let you deduct more of an asset's cost in the year you place it in service. You choose whether and how to use each one.

For 2026, IRS Publication 946 sets the federal Section 179 limit at $2,560,000. The limit drops dollar for dollar once qualifying property you place in service exceeds $4,090,000, so it disappears at $6,650,000. Your deduction can't exceed your business's taxable income.

Bonus depreciation is a separate first-year deduction. The One Big Beautiful Bill Act (PL 119-21) reinstated 100% bonus depreciation for qualified property acquired and placed in service after Jan 19, 2025. Qualified property means tangible MACRS property with a recovery period of 20 years or less, plus certain software.

According to the instructions for Form 4562 Depreciation and Amortization, you can elect 40% instead for the first tax year ending after Jan 19, 2025, or 60% for certain long-production-period property and aircraft. Property you acquired before Jan 20, 2025, and placed in service in 2025 was limited to 40% (60% for long-production-period property and certain aircraft).

The two stack. Section 179 applies first, bonus depreciation covers the remaining basis, and regular MACRS handles what's left. A large deduction now leaves less depreciation for later years.

Model both elections with your certified public accountant (CPA) before year-end, because the choice shapes your deductions for years.

Amortization rules for intangibles

You amortize most intangibles straight-line with no salvage value, over the asset's legal or contractual life. That makes your monthly amortization expense the asset's cost divided by its useful life in months.

For federal tax, Section 197 of the Internal Revenue Code requires you to amortize goodwill and other acquired intangibles ratably over 15 years (180 months), starting the month you acquire them. Section 197 covers customer-based intangibles, licenses, non-competes, franchises, trademarks, and workforce in place.

For book, public companies test goodwill for impairment. The Financial Accounting Standards Board's (FASB) Accounting Standards Update (ASU) 2014-02 (the most recent report on this topic) lets private companies elect to amortize goodwill straight-line over 10 years, or less "if the entity demonstrates that another useful life is more appropriate."

• Patents: Amortize them over the remaining legal life or a shorter expected useful life. Separately acquired patents fall outside Section 197 for tax.
• Copyrights: Amortize them over the period you expect the work to earn revenue. That period is usually much shorter than the legal term.
• Trademarks: Amortize a trademark with a defined life, and test one you'll renew indefinitely for impairment. Acquired trademarks get 15 years for tax under Section 197.
• Franchise agreements: Amortize them over the contract term for book. For tax, they're Section 197 intangibles with a 15-year life.
• Customer lists: Amortize them over the period you expect those customers to keep buying. Acquired customer-based intangibles use the 15-year Section 197 schedule for tax.
• Non-competes: Amortize them over the agreement term for book. For tax, a non-compete signed as part of an acquisition still runs 15 years, even if the contract lasts two.
• Acquired goodwill: Amortize it over 10 years or less if you're a private company that elects to, or test it for impairment if you're public. Tax amortizes it over 15 years.
• Capitalized software: Amortize internal-use software over its useful life once it's ready for use. For tax, the IRS lets you depreciate off-the-shelf software straight-line over 36 months.

Book and tax lives often differ for intangibles, so track both on every acquired asset.

Startup and organizational costs

You can deduct a limited amount of startup and organizational costs in your first year and amortize the rest over 180 months. Startup costs include pre-opening spending such as market research and employee training. Organizational costs include forming the entity, such as legal fees and state filing fees.

According to IRS Publication 583, you can elect to deduct up to $5,000 of startup costs and up to $5,000 of organizational costs. Each cap shrinks by the amount those costs exceed $50,000. The IRS Form 4562 instructions say you amortize whatever remains over 180 months, starting the month your business begins.

Say your startup costs total $53,000. Your immediate deduction drops to $2,000, and you amortize the remaining $51,000 at about $283 a month.

You make the election on your first-year federal return, so loop in your CPA before you file it.

How depreciation and amortization schedules run each period

Once you've classified an asset and set its method, the work becomes keeping the schedule accurate every close. That means recording each period's expense, adjusting for additions and disposals, and keeping your ledger in sync with your enterprise resource planning (ERP) system.

Each schedule starts when you place the asset in service. Mid-period additions follow a partial-period convention, such as a full-month or half-month rule for book, while MACRS generally uses a half-year convention for tax.

Each period's posting hits the same contra-asset account, so your accumulated depreciation journal entries repeat in the same shape every close.

1. Confirm new capitalized additions: Review the period's spend for purchases above your capitalization threshold and add each one with its in-service date.
2. Post the period's depreciation and amortization expense: Book the scheduled expense for every active asset, prorating new additions under your convention.
3. Record and reverse accruals: Accrue costs you've recognized before the invoice arrives, then reverse last period's accruals once the bill posts.
4. Update schedules for changes: Adjust for disposals, impairments, or useful-life changes, and apply life changes going forward.
5. Reconcile subledgers to the GL and ERP: Tie the fixed asset and intangible subledgers to your ERP balances before you lock the period.

The routine breaks down in a few predictable places. Spreadsheet schedules drift from the GL as people edit them outside the ERP. You miss capitalizable purchases when spend isn't coded at the transaction level.

Reconciling the subledger to the ERP then eats hours at month-end. Code capitalizable spend when it posts, and your close shrinks to review and reconciliation.

When to bring in your CPA

Your accounting team owns classification, schedule upkeep, and the period close. Hand tax elections and anything you file with the IRS to your CPA or tax advisor.

These belong with a CPA because they're hard to undo once filed. Correcting prior-year depreciation or changing a tax method usually requires IRS consent, and each election shapes your deductions for years.

Federal limits can change annually with new legislation, so have your CPA confirm them against current IRS guidance. Hand over a reconciled schedule at year-end, and your CPA can focus on the elections.

Keep your depreciation and amortization schedules close-ready with Ramp's Accounting Agent

Once you classify an asset, the recurring work starts: keeping its entries accurate and synced every close, and finding capitalizable spend nobody coded when it posted. Miss that spend at the transaction level, and it never reaches a schedule.

Ramp's Accounting Agent codes every transaction the moment it posts, so you spend less of your close fixing entries. It fills in your ERP fields without rules to build or maintain, then routes only the exceptions to your team.

With the Accounting Agent, you can:

• Catch capitalizable spend at the source: It auto-codes every transaction to GL, department, class, location, and custom fields as it posts.
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You can close your books 3x faster, with 3.5x more transactions auto-coded than rules-only tools. Accounting firms managing multiple client books get that gain across every client.

Try an interactive demo to see how Ramp keeps your period-end entries coded and synced, and why more than 85,000 businesses use Ramp to save over a year’s worth of work every hour.