Bonus Depreciation: The Complete Guide for Small Businesses in 2026

Here's a tax strategy that could let you deduct the entire cost of a $50,000 piece of equipment on this year's tax return—instead of spreading that deduction over five to seven years. It's not a loophole. It's bonus depreciation, and thanks to recent legislation, it's back to 100% for good.

If you've been purchasing equipment, vehicles, or machinery for your business, understanding bonus depreciation could meaningfully reduce your tax bill. Here's everything you need to know.

What Is Bonus Depreciation?

Bonus depreciation is a federal tax incentive that lets businesses write off a large percentage of the cost of qualifying assets in the first year they're placed in service, rather than depreciating them gradually over time.

Normally, when you buy a business asset like a delivery truck or a CNC machine, you recover its cost through annual depreciation deductions spread over its "useful life" (typically 5–7 years for most equipment). Bonus depreciation accelerates this—letting you front-load the deduction and reduce your taxable income significantly in year one.

The Big News for 2026: 100% Is Back Permanently

For several years after the Tax Cuts and Jobs Act of 2017, the bonus depreciation rate was being phased down:

Year	Bonus Depreciation Rate
2022	100%
2023	80%
2024	60%
2025	40%
2026 (pre-OBBBA)	20%

The rate was heading toward zero. Then Congress passed the One Big Beautiful Bill Act (OBBBA), signed in July 2025, which permanently restored 100% bonus depreciation for qualified property acquired after January 19, 2025.

This is significant. Businesses no longer need to rush purchases before a deadline or plan around a shrinking deduction. The full 100% write-off is now a permanent feature of the tax code.

What Property Qualifies?

To claim bonus depreciation, your asset must meet these requirements:

Eligible Property Types

• Machinery, equipment, and manufacturing tools
• Computers and off-the-shelf software
• Office furniture and fixtures
• Qualified improvement property (interior improvements to nonresidential buildings)
• Certain business vehicles
• Water utility property
• Qualified film, TV, and theatrical productions
• Qualified sound recording productions (new under OBBBA)

Key Requirements

• The asset must have a MACRS recovery period of 20 years or less
• It must be new to your business (though not necessarily brand new—used property qualifies if it's the first time your business uses it)
• You must place it in service during the tax year (meaning you start using it for business)
• The property must be used more than 50% for business purposes

What Doesn't Qualify

• Land and buildings (structures themselves, not improvements)
• Intangible assets like goodwill or patents
• Property used outside the United States
• Property acquired in certain nontaxable exchanges

The Acquisition Date Matters

Here's a timing detail that trips up many taxpayers: the OBBBA's permanent 100% rate applies to property acquired after January 19, 2025. If you had a written binding contract signed before January 20, 2025, the old phase-down rules may still apply—even if you placed the property in service in 2026.

The IRS uses several tests to determine when property is considered "acquired":

• Written Binding Contract (WBC) Test: When did you sign a binding purchase agreement?
• Physical Work of Significant Nature Test: For self-constructed property, when did meaningful construction begin?
• 10% Safe Harbor: Have you spent at least 10% of the total cost?

If you're dealing with a large equipment purchase or construction project, consult a tax professional to confirm your acquisition date qualifies.

How to Claim Bonus Depreciation

The process is straightforward:

1. Purchase qualified property and begin using it for business during the tax year
2. Track your basis (purchase price plus any installation or setup costs)
3. Complete Form 4562 (Depreciation and Amortization) when filing your tax return
4. Report the deduction on your business return (Schedule C, Form 1120-S, Form 1065, etc.)

Bonus depreciation is applied automatically to eligible property unless you elect out. You don't need to make a special election to claim it.

Bonus Depreciation vs. Section 179: What's the Difference?

Both strategies let you deduct asset costs faster than standard depreciation, but they work differently. Here's how they compare:

Feature	Bonus Depreciation	Section 179
2026 deduction rate	100%	Up to $2,560,000
Annual dollar cap	None	$2,560,000
Phase-out threshold	None	Begins at $4,090,000
Can create a tax loss?	Yes	No
Applies automatically?	Yes (unless you elect out)	No (must elect it)
Used property eligible?	Yes	Yes
Choose specific assets?	No (applies to all eligible property)	Yes

The Key Practical Difference: Business Losses

The most important distinction is that bonus depreciation can create a net operating loss (NOL), while Section 179 cannot. If your deduction exceeds your taxable income, the excess becomes an NOL that can be carried forward to offset future income.

This makes bonus depreciation particularly valuable for:

• Businesses with lower profits in the current year
• Startups with significant asset purchases
• Businesses making large one-time equipment investments

Using Both Together

Many businesses combine both strategies:

Example: A construction company buys $3,000,000 in equipment in 2026.

1. Apply Section 179 to deduct $2,560,000 (the 2026 limit), targeting the deduction to profitable assets first
2. Apply bonus depreciation to the remaining $440,000
3. Result: 100% of the $3,000,000 is deducted in year one

Real-World Examples

Example 1: Small Restaurant Buys New Equipment

A restaurant purchases $120,000 in kitchen equipment and places it in service in 2026.

• Without bonus depreciation: Deduct ~$17,000/year over 7 years
• With bonus depreciation: Deduct the entire $120,000 in 2026
• Tax savings (assuming 25% effective rate): ~$25,500 in year one vs. ~$4,250 per year

Example 2: Freelance Consultant Buys a Home Office Setup

A self-employed consultant purchases $8,000 in computers and office furniture.

• Claim 100% bonus depreciation for the full $8,000 deduction in 2026
• If the equipment is used 80% for business, the deductible amount is $6,400

Example 3: Startup with Losses

A tech startup buys $200,000 in servers but only has $150,000 in revenue and $100,000 in other deductions.

• After claiming $200,000 bonus depreciation, taxable income is -$150,000
• The $150,000 NOL carries forward to offset future profits
• No immediate tax benefit, but the tax asset reduces future liability

When Not to Use Bonus Depreciation

Accelerating deductions isn't always the right move. Consider skipping bonus depreciation (or opting for a lower rate) when:

• You expect higher income in future years: Spreading deductions over time could save more tax if you'll be in a higher bracket later
• You need the income for financing: Lenders often want to see taxable income. Aggressive depreciation can make your business look less profitable on tax returns, which may affect loan applications
• You're in a low-tax year anyway: If your income is already very low, accelerating deductions may not save much and reduces future flexibility
• State taxes matter: Many states don't conform to federal bonus depreciation rules. The federal deduction may not reduce your state tax bill at all

Available Elections

The IRS allows several elections to customize your bonus depreciation approach:

• Elect out entirely: You can choose not to claim bonus depreciation for a specific class of property (e.g., all 5-year property)
• Elect a lower rate: Under certain provisions, you may elect 40% or 60% instead of 100%
• Component election: For self-constructed property, you can treat specific components separately

These elections are made on a class-by-class basis (not asset by asset), so plan carefully with your tax advisor.

Recordkeeping Requirements

Claiming bonus depreciation requires accurate records. You'll need to document:

• Purchase date and cost (including shipping, installation, setup)
• Date placed in service (when you first used it for business)
• Business use percentage (especially for vehicles and assets with mixed personal/business use)
• Asset description and MACRS property class

Keep invoices, receipts, and contracts. For vehicles, a mileage log is essential to substantiate business use percentages.

State Tax Conformity: A Hidden Trap

Here's something many small business owners miss: most states don't fully conform to federal bonus depreciation rules.

States like California, New Jersey, New York, and several others require you to add back federal bonus depreciation and use their own depreciation schedules. This means you could have a large federal deduction but still owe significant state taxes on the same income.

Before making major asset purchase decisions based on bonus depreciation, check your state's conformity rules or work with a CPA who knows your state's tax code.

How Bonus Depreciation Affects Your Books

There's an important distinction between tax depreciation and book (GAAP) depreciation:

• Tax depreciation: Uses bonus depreciation, Section 179, or MACRS for your tax return
• Book depreciation: Usually straight-line over the asset's useful life for financial reporting

These two don't have to match. Most small businesses accelerate depreciation on their tax returns while using straight-line for their internal financials and bank reporting. This creates a deferred tax liability on your balance sheet.

Keeping clear records of both is essential for accurate financial reporting.

Frequently Asked Questions

Can I claim bonus depreciation on a vehicle? Yes, but vehicles are subject to luxury auto limits. For 2026, the first-year deduction for passenger vehicles is capped even with bonus depreciation. Heavy SUVs and trucks over 6,000 lbs GVWR have separate (higher) limits.

Does bonus depreciation apply to used equipment? Yes. Since the TCJA, used property qualifies as long as it's the first time your business uses it and the other requirements are met.

What if I buy the asset but don't start using it until next year? You claim bonus depreciation in the year you place the asset in service (start using it), not when you buy it. Purchasing equipment in December but not using it until January means you claim the deduction next year.

Can a partnership or S-corp claim bonus depreciation? Yes. The deduction flows through to partners or shareholders on their K-1s, where each individual claims it on their personal return.

Keep Your Asset Records Organized

Bonus depreciation delivers maximum value when your asset records are meticulous. You need to track purchase dates, costs, placed-in-service dates, and business use percentages—across potentially dozens of assets.

Maintaining clean, accurate financial records makes it easy to identify which assets qualify, calculate your deductions precisely, and substantiate your claims if the IRS ever questions them. Beancount.io offers plain-text accounting that gives you full transparency and version control over your financial records—so you always know exactly what you own and when you acquired it. Get started for free and build the financial clarity your business needs.