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Equipment Financing Calculator

Compare an equipment loan vs an operating lease vs a capital lease — with monthly payment, total cost, Section 179 + bonus depreciation tax savings, and after-tax effective APR. The calculator that finally shows the tax math, not just the payment.

Common equipment terms: 36–84 months. Match the term to the asset's useful life.

Lease type

21% federal corporate is the default. S-corps / partnerships use the owner's marginal individual rate plus state.

Most states tax equipment as TPP. Manufacturing exemptions vary — check your state DOR.

Monthly payment
$1,013.82
Total cost (payments + down + residual + sales tax): $60,829
Total payments
$60,829

over 60 mo

Total interest
$10,829

8.00% nominal APR

Tax savings
Year-1 §179$10,500MACRS years 1–6$0Total lifetime$10,500
APR before tax
8.00%
APR after tax
0.21%
Operating-lease equivalent (15% residual)
Monthly payment$911.75Residual at end$7,500Total cost$62,205After-tax APR0.99%
Annual payments vs tax savings

Cash payments out (left bars) vs tax savings from §179 + bonus + MACRS (right bars). Year 1 is when most of the tax shield lands if §179 is enabled.

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View the TypeScript implementation on GitHub: packages/calc/src/equipment-financing.ts · view tests

What this means

For most U.S. small businesses buying equipment in 2026, the single biggest economic factor isn't the interest rate — it's the Section 179 immediate expensing deduction. A $50,000 equipment purchase at a 21% marginal tax rate produces $10,500 in year-1 tax savings, which in cash terms is roughly the equivalent of ten months of payments on a 60-month amortization. That's why the after-tax effective APR can come in materially below the nominal APR — sometimes 200+ basis points lower for under-cap businesses where §179 absorbs the entire basis.

The trade-off between loan and operating lease isn't about which is cheaper in total dollars; the loan almost always wins on total cost because you build equity. The trade-off is about cash-flow shape and residual risk. Operating leases produce a lower monthly payment by deferring 10–20% of the price to a balloon you can choose to pay, renegotiate, or walk away from — which is exactly the right call for rapidly-depreciating tech equipment, but the wrong call for long-life machinery you'd use for 15+ years.

Worked example

A construction company buys a $250,000 excavator. 10% down ($25,000), $225,000 financed at 8.5% over 60 months. The company is an S-corp whose owner is in a 21% effective marginal bracket (federal + state blended). They take Section 179 in year 1 and use standard 5-year MACRS for the residual basis. Running the numbers:

  • Monthly P&I: ~$4,615
  • Total payments over 60 months: ~$276,900
  • Total interest: ~$51,900
  • Year-1 §179 deduction: full $250,000 expensed (under the $1.16M cap) → $52,500 cash tax savings, ~11 months' worth of payments back.
  • After-tax effective APR: drops from ~8.5% nominal to roughly 6.5% effective.

Conclusion: the §179 deduction is the single biggest economic factor. Without it, equipment financing is meaningfully more expensive than the nominal rate suggests; with it, the after-tax math frequently beats SBA-rate alternatives that take 60+ days to close. If the same company had been over the §179 cap (say, $1.5M of qualifying purchases), the 2026 phase-down to 20% bonus depreciation on the excess would substantially soften the tax-savings math, and a longer-term SBA 504 package would start to look more attractive.

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Frequently asked questions

See methodology — how this tool is built and reviewed.

By Last verified

Founder & Editor, Bedrocka Tools

The information and tools on this website are for general educational purposes only and do not constitute financial, investment, legal, or tax advice. Consult a licensed professional for decisions specific to your situation.