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Section 179 Tax Deduction Guide: How to Write Off Equipment Financing in 2025
Blog Dec 20, 2025

Section 179 Tax Deduction Guide: How to Write Off Equipment Financing in 2025

E

EquipRates Tax Team

Financial Editor

If you've ever heard of business owners buying heavy SUVs to save on taxes, you've seen Section 179 in action. But this powerful tax deduction applies to far more than vehicles, and it could save your business tens of thousands of dollars this year.

Section 179 is one of the most valuable tax benefits available to businesses that use equipment financing or purchase equipment outright. Understanding how it works can transform your equipment purchases from expenses into strategic tax savings.

What Is Section 179?

Section 179 of the IRS tax code allows businesses to deduct the full purchase price of qualifying equipment and software in the year it's purchased or financed instead of depreciating it over several years.

Key Benefits

  • Immediate Deduction: Write off the entire cost in year one. No waiting years for depreciation
  • Works with Financing: Even if you use a business equipment loan, you get the full deduction
  • Reduces Tax Bill: Lower your taxable income significantly in the year of purchase

Whether you're taking out a small business loan to purchase machinery or using equipment loans to expand your operations, Section 179 can make your investment far more affordable than you might think.

How Much Can You Save? A Real-World Example

Let's break down the math with a practical scenario that shows the true power of Section 179.

Scenario: You purchase a $50,000 machine using business equipment financing

ItemAmount
Equipment Cost$50,000
Your Tax Bracket35%
Tax Savings$17,500
Net Cost After Deduction$32,500

Here's Where It Gets Even Better

If you finance this machine, you might only pay $5,000 in payments during the first year. Yet you still receive the full $17,500 tax deduction.

The Result: You save more in taxes than you paid in cash. This is why savvy business owners combine equipment loans with Section 179.

2025 Section 179 Limits and Thresholds

The IRS updates Section 179 limits annually. Here's what you need to know for 2025:

  • Maximum Deduction Limit: $2.5 million
  • Spending Cap Before Phase-Out: $4 million
  • Bonus Depreciation Available: 100%

These generous limits mean most small business loans for equipment will qualify for full deduction benefits without hitting the cap.

What Equipment Qualifies for Section 179?

A wide range of business assets qualify for Section 179 deductions. Both new and used equipment qualify, as long as it's new to your business.

Manufacturing and Industrial

  • Machinery and equipment
  • CNC machines
  • Assembly line equipment
  • Industrial tools

Vehicles and Transportation

  • Business vehicles (over 6,000 lbs GVW)
  • Delivery trucks
  • Trailers
  • Heavy SUVs

Office and Technology

  • Office furniture and equipment
  • Computer hardware and software
  • Phone systems
  • Security systems

Construction and Heavy Equipment

  • Excavators and bulldozers
  • Cranes and loaders
  • Concrete equipment
  • Paving machinery

Medical and Dental

  • Medical equipment
  • Dental chairs and equipment
  • Diagnostic equipment
  • Laboratory equipment

Restaurant and Hospitality

  • Commercial kitchen equipment
  • Refrigeration units
  • Point-of-sale systems
  • Furniture and fixtures

This makes Section 179 an excellent companion to any business equipment loan strategy. Finance the purchase and get the full deduction.

How to Maximize Your Section 179 Benefits

Follow this strategic roadmap to get the most from your equipment financing tax deductions.

1. Plan Your Timing Strategically

Equipment must be purchased AND placed in service by December 31st to qualify for the current tax year. Don't wait until the last minute. Vendors get backed up in late December.

2. Keep Detailed Records

Document everything: purchase dates, costs, delivery dates, and the date placed in service. Also track the business use percentage (must be 50%+ for most equipment).

3. Consider Financing Over Cash

Equipment loans let you preserve operating cash while still claiming the full deduction. You can save more in taxes than your first year of payments, keeping your cash for other business needs.

4. Work with Your CPA or Tax Advisor

Tax laws are complex and your situation is unique. A qualified professional ensures you're maximizing deductions within IRS guidelines and avoiding costly mistakes.

Section 179 and Small Business Loans: A Winning Combination

Many business owners don't realize that small business loans used for equipment purchases still qualify for Section 179. This creates a powerful wealth-building strategy:

  • Finance 100% of the equipment cost
  • Deduct 100% in year one
  • Spread payments over 2-7 years
  • Potentially save more in taxes than your first-year payments

This makes business equipment financing one of the smartest ways to grow your business while minimizing your tax burden.

Financing Options to Combine with Section 179

When using Section 179, you have several financing structures to choose from:

Equipment Term Loans

Traditional loans where you borrow the full amount and make fixed monthly payments. The equipment serves as collateral. Section 179 applies to the full purchase price immediately.

Equipment Leases

Lease payments may be deductible as operating expenses, but Section 179 typically applies only to loans where you own the equipment. Consider a $1 buyout lease to get both lease flexibility and Section 179 benefits.

SBA 504 Loans

Government-backed loans for equipment and fixed assets. Lower rates but longer approval times. Full Section 179 deduction available.

Lines of Credit

Revolving credit you can use for equipment purchases. Section 179 applies when equipment is purchased and placed in service.

Common Section 179 Mistakes to Avoid

Missing the Deadline

Equipment must be both purchased and placed in service by December 31st. Ordering equipment in December that arrives in January doesn't qualify for the current year.

Not Documenting Business Use

Equipment must be used more than 50% for business purposes. If you use a truck 40% for personal use, you can only deduct 60% of the cost.

Forgetting About State Taxes

Most states follow federal Section 179 rules, but some have different limits. Check your state's specific regulations.

Overlooking Form 4562

You must file IRS Form 4562 to claim Section 179 deductions. Work with your accountant to ensure proper filing.

Deducting More Than Your Income

Section 179 deductions cannot exceed your business taxable income for the year. Unused deductions can be carried forward to future years.

Section 179 vs. Bonus Depreciation

Both Section 179 and bonus depreciation allow accelerated deductions, but they work differently:

FeatureSection 179Bonus Depreciation
Income LimitCannot exceed business incomeNo income limit
Spending Cap$2.5M deduction, $4M spending capNo cap
Equipment TypesMost tangible personal propertyNew and used equipment
Best ForSmall to mid-size businessesLarge purchases or high-income businesses

Many businesses use both: Section 179 up to the limit, then bonus depreciation for additional equipment.

Calculating Your Section 179 Savings

Use this formula to estimate your tax savings:

Tax Savings = Equipment Cost × Your Tax Rate

Examples

Example 1: $100,000 excavator, 35% tax bracket
Savings = $100,000 × 0.35 = $35,000

Example 2: $25,000 CNC machine, 24% tax bracket
Savings = $25,000 × 0.24 = $6,000

Example 3: $75,000 in office equipment, 32% tax bracket
Savings = $75,000 × 0.32 = $24,000

Remember these are first-year savings. Without Section 179, you'd depreciate equipment over 5-7 years, spreading the deduction (and savings) over multiple tax years.

Industries That Benefit Most from Section 179

Construction

Heavy equipment purchases like excavators, bulldozers, and trucks qualify for immediate deduction. Many construction companies time major equipment purchases for late in the year to maximize tax benefits.

Manufacturing

CNC machines, industrial equipment, and production tools all qualify. Manufacturing businesses can deduct entire production line upgrades in a single year.

Healthcare

Medical and dental equipment, diagnostic machines, and office technology qualify. Healthcare practices often combine Section 179 with equipment financing to upgrade technology while preserving cash flow.

Transportation and Logistics

Commercial vehicles, trucks, and trailers all qualify. Transportation companies can deduct entire fleet purchases in year one.

Restaurants

Commercial kitchen equipment, point-of-sale systems, and furniture qualify. Restaurant owners expanding or remodeling can write off all new equipment immediately.

Agriculture

Tractors, combines, irrigation systems, and farm equipment all qualify. Agricultural businesses can time equipment purchases to offset strong harvest years.

Next Steps: Combining Section 179 with Equipment Financing

To maximize Section 179 benefits with equipment financing:

  1. Identify needed equipment before year-end
  2. Get equipment quotes with detailed specifications
  3. Apply for financing from multiple lenders to compare rates
  4. Consult your CPA about your specific tax situation
  5. Complete purchase and delivery before December 31st
  6. Place equipment in service before year-end (even if just testing)
  7. Document everything for tax filing

The combination of equipment financing and Section 179 creates a powerful strategy: preserve your operating cash, acquire needed equipment, and reduce your tax burden, all at the same time.

Important Disclaimer

This guide is for informational purposes only. We are equipment financing specialists, not tax professionals. Always consult with a qualified CPA or tax advisor before making tax-related decisions. Tax laws change frequently and your specific situation may vary.

Section 179 rules, limits, and eligibility requirements are subject to change by Congress and the IRS. The information provided reflects 2025 tax law but may not reflect future changes or your specific circumstances.

Ready to find equipment financing that maximizes your Section 179 benefits? Use our equipment financing calculator to estimate your payments, or compare top equipment financing companies to find the best rates.

Topics: Financing Small Business Growth

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