Bonus Depreciation Percentage by Year: What Business Owners Need to Know

Tax Rates Defined: Bonus Depreciation Percentage by Year 

The bonus depreciation percentage by year determines how much of a qualifying asset’s cost businesses can deduct immediately. Under IRS rules, this percentage has dropped from 100% in 2022 to 40% in 2025, making tax planning more urgent than ever.

The bonus depreciation percentage by year directly impacts how much your business saves at tax time. Since the Tax Cuts and Jobs Act of 2017, these rates have shifted significantly — and many business owners are losing deductions without realizing it. Understanding the current IRS schedule helps you act before the window closes and your tax liability grows.

Bonus Depreciation Percentage by Year: Key IRS Concepts

Since the Tax Cuts and Jobs Act took effect, bonus depreciation has followed a defined phase-down schedule. Here’s how the percentages break down:

• 2022: 100%
• 2023: 80%
• 2024: 60%
• 2025: 40%
• 2026: 20%
• 2027 and beyond: 0% (unless Congress acts)

According to the IRS Publication 946, bonus depreciation applies to qualified property including machinery, equipment, computers, and certain improvements. The 40% rate in 2025 means a $500,000 asset yields only a $200,000 first-year deduction — down from $500,000 just three years ago.

Missing these windows creates real tax debt exposure. Businesses that fail to plan around this schedule often face unexpected balances owed to the IRS, penalties, and interest that compound quickly.

Step-by-Step Tax: How Bonus Depreciation Affects Your IRS Return

Applying bonus depreciation correctly requires more than knowing the percentage. Here’s how the process works:

1. Identify qualified property — Assets must have a recovery period of 20 years or less under MACRS.
2. Confirm the placed-in-service date — The year the asset enters service determines your applicable percentage.
3. Calculate the deduction — Multiply the asset’s cost basis by the current year’s bonus depreciation rate.
4. Complete IRS Form 4562 — This form reports depreciation and must be filed with your business return.
5. Consult a tax professional — Especially if you have substantial assets, prior-year carryovers, or existing IRS debt.

According to IRS data, millions of small business returns include depreciation errors each year. These errors can trigger audits or unexpected tax balances — both of which can escalate into serious tax debt if not addressed promptly.

The phase-down also interacts with Section 179, which has its own limits and requirements. Business owners should evaluate both options side-by-side to maximize deductions within IRS guidelines.

Options Compared: Bonus Depreciation vs. Section 179

Both methods offer first-year deductions, but they work differently:

According to the IRS Section 179 guidance, the Section 179 deduction cannot exceed business taxable income — meaning it can’t create a loss. Bonus depreciation, however, can generate a net operating loss that carries forward.

For businesses already managing tax debt, choosing the wrong method can reduce deductions and worsen an existing IRS balance. A tax attorney can evaluate your situation and determine which path protects your finances most effectively.

Proven Tax Solutions: Don’t Let Depreciation Errors Become Tax Debt

Tax depreciation planning and tax debt relief may seem unrelated — but they’re closely connected. When businesses miscalculate depreciation or miss deduction opportunities, they often owe more than expected. That balance, left unresolved, grows through IRS penalties and interest.

The IRS charges a failure-to-pay penalty of 0.5% per month on unpaid taxes, up to 25% of the total amount owed. For a $50,000 tax debt, that’s up to $12,500 in penalties alone — before interest.

If your business has an IRS balance related to depreciation miscalculations or missed deductions, tax debt relief options exist. These include installment agreements, penalty abatement, and Offers in Compromise — each with specific eligibility requirements under the tax code.

Tax Relief Advantages: Act Before the 2026 Phase-Down

With bonus depreciation dropping to 20% in 2026 and disappearing entirely in 2027, this year represents one of the last meaningful opportunities to accelerate deductions under current law.

Business owners who have unresolved IRS balances alongside upcoming asset purchases should speak with a tax attorney now. Combining proper depreciation planning with a structured tax debt relief strategy can significantly reduce overall liability.

The exclusive tax debt resources available through Legal Brand Marketing connect struggling taxpayers with experienced professionals who understand both tax planning and IRS resolution.

Don’t let a shrinking deduction window add to an existing tax problem. Take action now and request a free case review before the 2025 tax year closes.