How small and mid-size businesses use Section 179 in practice. Based on IRS Statistics of Income data, partner-lender survey responses, and CPA practice surveys.
Headline numbers
- ~65% of small-business equipment buyers claim Section 179 (latest IRS data)
- $190,000 average §179 claim per small business that uses it
- $425 billion in §179 deductions claimed nationally in the latest available year
- 62% of §179 claimants used financing rather than cash for the equipment
Claim distribution by business size
| Business revenue | % claiming §179 | Avg claim |
|---|---|---|
| Under $1M | 54% | $45,000 |
| $1M-$5M | 71% | $120,000 |
| $5M-$25M | 78% | $340,000 |
| $25M-$50M | 72% | $680,000 |
| $50M+ | 58% | $1,100,000 (capped at $1.22M) |
Why utilization drops at the top
Above ~$3M of annual equipment purchases, the §179 phase-out kicks in (dollar-for-dollar reduction). Above ~$4.27M of equipment purchases, §179 is fully phased out. Large equipment buyers shift to bonus depreciation, which has no cap but is currently at 60% (2026).
Industry breakdown
§179 claim rate by industry (top 5):
- Construction: 81% of equipment-buying small businesses claim
- Transportation: 78%
- Manufacturing: 74%
- Agriculture: 69%
- Restaurant: 66%
State-level variation
States that fully conform to federal §179 see higher utilization at the state-tax level. States that decouple (or have lower state §179 caps) see lower state-level utilization but the same federal-level claims. See our state guides for state-specific §179 conformity.
Common §179 mistakes (from CPA practice survey)
- Claiming §179 on property placed in service after year-end
- Claiming above business taxable income (excess carries forward but cannot create a loss)
- Forgetting the vehicle cap on under-6,000-lb vehicles (~$12,400)
- Mixed-use equipment not documented for business-use percentage
- Missing the income limitation interaction with related-party rules
Methodology
Data sources: IRS Statistics of Income (Form 4562 data, latest fiscal year), partner-lender quarterly survey (75 lenders, 2024-2026), CPA practice survey (200 small-business-focused CPAs, 2025). See our methodology page for full sourcing.
Not tax advice. Last reviewed: May 27, 2026.
