Operation Zero Tax  •  Phase 2 Strategy Tool

The Zero Tax Gap Calculator

See the exact number. Enter what you owe the IRS, and this tool reverse-engineers how much depreciable real estate it takes to drive your federal tax bill toward zero using cost segregation and 100% bonus depreciation.

Step 1 — Can you actually use the deduction?

Pick the path that fits your situation

This matters first. A depreciation loss only wipes out your income tax if it's non-passive. Choose how you'd unlock it. If none fit, the loss gets suspended and this is a conversation, not a spreadsheet.

Most common for couples

Spouse = Real Estate Pro

One spouse hits REPS (750+ hrs, >50% of work time in real estate, material participation). Unlocks long-term, multifamily, commercial, co-living & MTR against the other spouse's W-2 / business income.

No REPS needed

Short-Term Rental

Average guest stay of 7 days or less + material participation. The losses aren't treated as passive rental — they offset your active income. The classic "STR loophole."

Cleanest of all

Active Business + Equipment

Buying or running a business? Bonus depreciation on equipment (and any real estate that comes with it) offsets active income directly — no passive limitation to clear.

Heads up: without one of these unlocks, a rental depreciation loss is passive and gets suspended — it won't touch this year's tax bill. That's exactly the trap most people fall into. Book a call and we'll find the right path for your situation.
Step 2 — Your numbers

What you owe now

Estimated 2026 federal income tax on a married-filing-jointly return (before self-employment tax, NIIT, and state). We back into your taxable income from this.

Step 3 — The property

What you'd buy and cost-segregate

Defaults reflect a typical study: 20% of price is non-depreciable land, and a cost seg study reclassifies ~30% of the building into short-life property that gets 100% first-year bonus depreciation.

Your result

First-year deduction
$240,000
New federal tax
$37,912
Tax saved
$62,088
Tax now
$100,000
After this deal
$37,912
To take this bill all the way to $0, you'd need roughly $1.92M of property (about $460K of first-year deduction).

See your full line-by-line breakdown

Enter your info to reveal the exact math behind your number. Your editable spreadsheet and Top 10 Strategies guide are on their way to your inbox.

Taxable income (implied by your tax)$459,650
Building value (price − land)$800,000
First-year bonus depreciation deduction$240,000
New taxable income$219,650
Effective value of this deduction26%
Federal tax saved$62,088

Two more ways to close the gap — worth a conversation

Real estate depreciation is one lever. For high, cash-heavy income there are two more we walk clients through directly:

Oil & Gas (Intangible Drilling Costs)

Direct working-interest investments can deduct 60–80% of the amount in year one against active income. Cash-heavy, higher risk, powerful when the income is there.

Cash Balance Plans

For a stable, high-profit business owner: contribute $100K–$300K+ pre-tax per year — far past a 401(k) — on a defined-benefit schedule.

Disclaimer. This calculator is an educational estimate, not tax advice, and does not create a client relationship. It models 2026 federal income tax only and ignores self-employment tax, the 3.8% net investment income tax, state tax, AMT, the QBI deduction, passive-activity and at-risk limitations, and depreciation recapture on sale. Bonus depreciation requires the property to be acquired and placed in service after Jan 19, 2025 and used in a qualifying activity. Actual reclassification percentages come from an engineering-based cost segregation study and vary by property. Whether a loss is deductible against your other income depends on your facts (material participation, REPS, STR classification). Consult a qualified tax professional before acting.
Operation Zero Tax • Built for business owners who are done overpaying the IRS