How Bonus Depreciation Affects Business Taxes

Learn the ins and outs of bonus depreciation, and how this method may help you save on your small-business taxes.
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A concept that can be confusing and frustrating for small-business owners — especially come tax season — is depreciation. With depreciation, when you buy an asset (like a computer), even though the money has already left your bank account you can’t recognize the full expense.

Luckily, there are tax-saving alternatives business owners can use, including bonus depreciation. This guide to bonus depreciation will explain this method, what qualifies, how to claim it and more.

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What is bonus depreciation?

When you buy an asset for your business, you normally depreciate the asset over its useful life. Say you buy $5,000 worth of computers for your business. Rather than writing off the full expense, you might depreciate it by writing off $1,000 per year for five years.

That can be tough for small businesses — you paid for something in one year, and you won’t get the tax write-off right away. You have to wait five years to get the full benefit because of the accounting rule of depreciation. That can put a strain on your cash flow. But there are ways to avoid this situation.

Bonus depreciation is a method for businesses to take a larger depreciation deduction on assets the year your business starts using them. You might also hear it referred to as additional first-year depreciation.

Previously, bonus depreciation was 50%. That meant that a business could deduct 50% of the cost of an asset before taking standard depreciation.

The Tax Cuts and Jobs Act gave bonus depreciation a big boost, by increasing it to 100% for assets purchased and placed in service between Sept. 28, 2017 and Dec. 31, 2022. If you buy and start using an eligible asset during that period, you can elect to take 100% of the cost as depreciation, rather than depreciating it over a number of years.

Beginning in 2023, bonus depreciation will be phased down over four years:

  • 80% bonus depreciation in 2023.

  • 60% bonus depreciation in 2024.

  • 40% bonus depreciation in 2025.

  • 20% bonus depreciation in 2026.

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How does bonus depreciation affect taxes?

Let’s say your business just bought and started using a $30,000 piece of equipment that you’ll use for the next 10 years. Standard depreciation could leave you with an annual depreciation deduction of $3,000 per year. With a 21% corporate tax rate, that deduction would be worth $630 each year ($3,000 deduction x 21% tax rate).

While that’s a nice deduction to get each year, 100% bonus depreciation will give you a bigger deduction up front.

With a bonus depreciation of 100%, you’ll take a depreciation deduction for the entire $30,000 cost that first year you start using your equipment. With a 21% corporate tax rate, that deduction is worth $6,300 ($30,000 deduction x 21% tax rate).

That puts more money back into your pocket immediately, rather than needing to wait 10 years to get the full benefit of the depreciation deduction. And this hopefully frees up more cash so you can continue investing in things your business needs to help it grow.

What qualifies for bonus depreciation?

Not everything is going to qualify for bonus depreciation. Eligible property includes:

  • Tangible property with a useful life of less than 20 years: This includes things like equipment, machinery, furniture, vehicles, appliances and carpet.

  • Depreciable computer software.

  • Water utility property.

  • Qualified leasehold improvement property: improvements made to the interior of a non-residential building.

  • Qualified film, television and live theatrical productions.

Previously only new purchases were eligible for bonus depreciation. The Tax Cuts and Jobs Act also expanded the eligibility for bonus depreciation to include the purchase of used property. Not every used purchase will qualify though. The used property can’t be used by the taxpayer before buying it, and it can’t have been purchased from a related party, among other restrictions.

How to claim bonus depreciation

If you have purchased property that is eligible for bonus depreciation and placed it into service, you can claim bonus depreciation. You can file Form 4562, Depreciation and Amortization, with your tax return to claim the bonus depreciation.

Do you have to use bonus depreciation?

Bonus depreciation may not be right in every situation. If bonus depreciation isn’t going to be helpful for your business, you don’t have to take it. You can elect to instead use the appropriate depreciation method for your property.

Bonus depreciation vs. Section 179 expense

If you’ve heard about Section 179 depreciation deductions, you might be a little confused. Both it and bonus depreciation allow you to immediately write off the cost of the property that you purchase. But there are some differences.

  1. $1,020,000 maximum: Section 179 allows you to deduct up to $1,020,000 of business property purchases immediately, rather than depreciating them over their useful life. That maximum is reduced if you have purchases over $2.5 million and is completely phased out when your purchases exceed $3.5 million. Bonus depreciation isn’t subject to maximum dollar limits.

  2. Business income limits: Section 179 allows you to take a deduction up to your taxable income — a Section 179 deduction can’t be used if you have a loss. For example, say you bought a piece of equipment for $60,000. If you have taxable income of $50,000 before taking a Section 179 deduction, your Section 179 deduction is limited to $50,000. You can carry forward the unused Section 179 deduction. Bonus depreciation, on the other hand, isn’t subject to a taxable income limit.

If your business has a loss and can’t utilize the Section 179 deduction, you might consider using bonus depreciation instead. Or, if you have already used the maximum Section 179 deduction, you can potentially use bonus depreciation for your remaining property.

This is where working with an accountant can be very helpful: they can help you decide which option is best for your specific situation.

A version of this article was first published on Fundera, a subsidiary of NerdWallet

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