tax · 2026-05-01

Section 179 deduction calculator

Compute Section 179 immediate expensing for business equipment vs MACRS depreciation, including phase-out at the $3.13M cap (2024).

Section 179 tax saved year 1
$80,000

Inputs

Equipment cost$250,000
Total qualifying purchases$250,000
Marginal tax rate %32%
MACRS recovery years5

Supporting metrics

Eligible Section 179 deduction$250,000
MACRS year 1 tax saved$16,000
Year 1 cash advantage$64,000

About this calculator

Section 179 — full expensing in year 1

Section 179 lets businesses immediately deduct the FULL cost of qualifying equipment in the year placed in service, instead of depreciating over 5-39 years. For 2024: up to $1.22M with phase-out starting at $3.13M total qualifying purchases.

What qualifies

The phase-out

If total qualifying purchases exceed $3.13M:

Section 179 vs Bonus Depreciation vs MACRS

For business owners with positive income: Section 179 typically wins. For NOL situations: bonus depreciation is better.

FAQ

Can I use Section 179 to create a loss?

No — Section 179 is limited to taxable business income. If you'd be in a loss after the deduction, the unused portion carries forward. Bonus depreciation has no such limit and CAN create or expand a net operating loss.

Does this work on a heavy SUV?

Partially. Vehicles over 6,000 lbs GVW (most full-size SUVs and trucks) qualify for up to $30,500 (2024) in Section 179, plus bonus depreciation on the rest. Vehicles under 6,000 lbs are subject to luxury auto limits — Section 179 capped at ~$12,400 first year. Verify GVW on the door sticker before relying on the deduction.

Is Section 179 elective?

Yes — you elect it on Form 4562. The IRS won't auto-apply. Elect when income is high (current bracket value > expected future bracket value). Don't elect when you're in a low-income year and depreciation deductions would be more valuable spread across higher-income future years.