Finance category
Mortgage, loan, investing, tax, and money calculators.
Property Tax Abatement Calculator
Abatements phase in taxes. This calculator sizes.
Total abatement value
$1,540,000
Year 1 savings
$280,000
Year 5 savings
$168,000
How the math works
Each year's abatement decrements linearly. Total = sum across term.
$280k tax, 100% yr 1 phase-in over 10 years: total abatement $1.54M. Year 1 full $280k; year 5 reduced to $168k (40% abatement). Significant value but ramps to full tax — plan cash flow.
How to Use
- Enter abated tax (full).
- Enter abatement % year 1.
- Enter phase-in years.
- Enter term years.
- Read total abatement value.
Frequently Asked Questions
Typical structures?
100% year 1, 90% year 2, 80% year 3, etc., descending 10%/yr until full tax. 10-year phase typical. Some flat (100% for 10 years, then 0%). NYC 421-a/485-x: specific programs. Chicago L-class: landmark property. Each jurisdiction has program details.
Eligibility?
New construction. Substantial renovation (often defined by investment threshold). Affordable housing (LIHTC overlay). Historic preservation. Areas designated for development. Must apply during or before construction; after-the-fact applications often denied.
Lender acceptance?
Lenders underwrite abatement economics carefully. Tax expense ramps up year 5-10 = DSCR compression. Some lenders abate abatement (underwrite full tax for prudence). Factor ramp-up into pro forma cash flow; plan refinancing when abatement ends.
How often should I rerun this?
Rerun this calculator whenever inputs change materially — new rent roll data, rate moves, loan balance updates, or quarterly operating data. For active deals, monthly refresh is typical. For stabilized assets under monitoring, quarterly is fine. Treat the output as a decision tool, not a one-time answer — market conditions evolve and so should your analysis.
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