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BizMathPro

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.

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

Equipment financing at a glance

Key facts

Loan vs. lease taxonomy
A capital lease ($1 buyout) is economically a loan — the lessee takes title, depreciates the asset, and claims §179 / bonus depreciation. An operating lease is genuine rental: lower monthly payment, no equity built, and the lessor — not the lessee — claims the depreciation.
Section 179
IRC §179 lets a business immediately deduct the full cost of qualifying equipment placed in service, instead of depreciating over multiple years. For 2026 the limit is $1,160,000, with phase-out beginning at $2,890,000 of qualifying purchases. It applies to purchased equipment and capital leases, not operating leases.
Bonus depreciation phase-down
IRC §168(k) bonus depreciation has been phasing down since 2023: 80% in 2023, 60% in 2024, 40% in 2025, 20% in 2026, and 0% from 2027 onward absent further legislation. Order of operations: §179 first, then bonus on the remaining basis, then MACRS.
5-year MACRS schedule
Most business equipment falls in the 5-year MACRS class, and the half-year convention spreads it over 6 tax years: 20%, 32%, 19.2%, 11.52%, 11.52%, 5.76% (IRS Publication 946, Table A-1).
Trade-ins are now taxable
The Tax Cuts and Jobs Act of 2017 limited §1031 like-kind exchanges to real property effective 2018 — equipment trade-ins are now taxable exchanges, and the new equipment's basis is its full purchase price, not the old basis carried over.

Depreciation rules per IRS Publication 946 — How To Depreciate Property, IRC §179, and IRC §168(k). Updated May 2026.

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.

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.