Small Business Depreciation Hub

Stacking Section 179 and Bonus Depreciation

Small business owners have a powerful two-layer strategy available every year: apply Section 179 first to hit the annual expensing cap (over $1.2 million for 2024), then layer 60% bonus depreciation on top of any remaining cost basis for qualifying assets purchased in that same year. This combination can reduce a $500,000 equipment purchase to a near-zero net book value in year one. The key constraint is that Section 179 cannot exceed your business taxable income — it cannot create a loss — but bonus depreciation carries no such restriction. A profitable dental practice that spends $300,000 on a new imaging suite and treatment chairs could potentially deduct the entire amount in the first year by combining both strategies.

The bonus depreciation rate has been phasing down since 2023: 80% for assets placed in service in 2023, 60% in 2024, 40% in 2025, and 20% in 2026, before expiring entirely in 2027 absent new legislation. This timeline makes purchase timing critical — a business that delays a $200,000 machinery purchase from December 2024 to January 2025 effectively loses 20% of first-year bonus eligibility on that asset.

The De Minimis Safe Harbor: $2,500 Per Item

For businesses without an applicable financial statement (AFS), the IRS allows a de minimis safe harbor election to immediately expense any single item costing $2,500 or less per invoice or per item. Businesses that do have an AFS — such as those with audited financial statements — can use a $5,000 threshold. This election must be made annually by attaching a statement to your tax return, and it applies to tangible personal property purchased for business use.

In practice, this rule eliminates the need to capitalize and depreciate hundreds of routine business purchases. A construction company buying $2,000 drills or a restaurant purchasing $1,500 commercial blenders can expense these immediately rather than tracking them as depreciating assets for five years. The threshold applies per item or per invoice line, so an invoice for ten $300 tools — totaling $3,000 — can still be fully expensed under the $2,500-per-item test.

Building a Multi-Year Depreciation Strategy

Effective small business depreciation planning requires looking beyond the current tax year. Assets with a 5-year MACRS life (computers, vehicles, equipment) front-load deductions heavily in years one and two under the 200% declining balance method, with roughly 20% of cost recovered in year one and 32% in year two. Seven-year property like office furniture follows a similar acceleration curve. A business buying $100,000 of 5-year property will claim approximately $20,000 in year one (pre-bonus), $32,000 in year two, and progressively smaller amounts thereafter. Understanding this schedule helps owners anticipate when deductions will drop off and plan future acquisitions to maintain a stable tax deduction pipeline.