After-Tax Affordability Calculator
The Problem With Gross-Income Rules in NYC
The standard "28% of gross income" mortgage rule was designed for a world of lower taxes. In New York City, where residents pay federal income tax, NY state income tax (up to 10.9%), NYC city tax (up to 3.876%), FICA taxes, and potentially other deductions, the gap between gross and net income is enormous.
NYC tax reality check: A single NYC resident earning $150,000 pays approximately $15,000+ in federal income tax, $11,000+ in NY state tax, $5,000+ in NYC city tax, and $11,500 in FICA. That's $43,000–$48,000 in total taxes — leaving take-home pay of approximately $102,000–$107,000. The mortgage rule that says you can afford $42,000/year in housing payments (28% of $150K) is based on money you never receive.
Gross vs. After-Tax Affordability: The Full Table
| Gross Income | Est. NYC Net (Single) | 28% Gross Budget | 35% Net Budget | Difference | Gross Rule Overstates By |
|---|---|---|---|---|---|
| $80,000 | $58,000 | $1,867/mo | $1,692/mo | $175/mo | 10% |
| $100,000 | $68,000 | $2,333/mo | $1,983/mo | $350/mo | 18% |
| $125,000 | $82,000 | $2,917/mo | $2,392/mo | $525/mo | 22% |
| $150,000 | $98,000 | $3,500/mo | $2,858/mo | $642/mo | 22% |
| $200,000 | $127,000 | $4,667/mo | $3,704/mo | $963/mo | 26% |
| $250,000 | $154,000 | $5,833/mo | $4,492/mo | $1,341/mo | 30% |
| $300,000 | $181,000 | $7,000/mo | $5,279/mo | $1,721/mo | 33% |
| $400,000 | $232,000 | $9,333/mo | $6,767/mo | $2,566/mo | 38% |
The gap grows with income: At $150K, gross-rule overstates your budget by 22%. At $400K, it overstates by 38%. NYC's high marginal tax rates — especially the combination of all four layers of taxation — create a significant wedge between what you earn and what you keep. High earners are especially misled by gross-income rules.
What These Numbers Mean in Real Home Prices
The Gross-Income Approach (misleading)
The After-Tax Approach (realistic)
What Percentage of Net Income Should You Spend on Housing?
Since gross-income rules aren't reliable for NYC, here's a framework based on take-home pay:
- Conservative (25% of net): Leaves ample room for savings, dining, travel, and the unexpected. Appropriate if you have other financial goals (aggressive retirement savings, kids' education, etc.).
- Standard (30–35% of net): The "comfortable" range for most NYC buyers. You'll live well but need to be disciplined about other spending.
- Stretch (35–40% of net): Acceptable temporarily or if you expect income growth. Leaves less buffer for savings and discretionary spending.
- Risky (40%+ of net): You're house-poor. A job change, market shift, or unexpected expense could be devastating. NYC buyers in this range often find that homeownership increases financial stress rather than reducing it.
The NYC Tax Burden by Income Level
To understand the after-tax affordability gap, it helps to see exactly how much NYC residents pay in taxes. These are approximate effective rates for a single filer in 2026:
| Gross Income | Federal Tax | NY State Tax | NYC City Tax | FICA | Total Taxes | Effective Total Rate |
|---|---|---|---|---|---|---|
| $80,000 | $10,200 | $5,100 | $2,500 | $6,120 | $23,920 | 29.9% |
| $100,000 | $14,400 | $6,800 | $3,200 | $7,650 | $32,050 | 32.1% |
| $150,000 | $25,800 | $11,500 | $5,000 | $10,453 | $52,753 | 35.2% |
| $200,000 | $38,400 | $16,800 | $7,000 | $12,428 | $74,628 | 37.3% |
| $300,000 | $69,200 | $28,400 | $11,200 | $13,653 | $122,453 | 40.8% |
| $400,000 | $103,800 | $39,500 | $15,100 | $13,653 | $172,053 | 43.0% |
Estimates only. Actual taxes vary based on deductions, filing status, pre-tax contributions (401k, HSA), and other factors. FICA capped at Social Security wage base ($176,100 in 2026).
Our Recommendation: The 35% Net Rule
For most NYC buyers, we recommend targeting a total housing payment (PITI + HOA) of no more than 35% of your monthly net take-home pay. This approach:
- Accounts for the real tax burden of living in NYC
- Leaves room for retirement savings (ideally 15%+ of gross), emergency fund contributions, and discretionary spending
- Aligns with what financial planners actually see working sustainably for NYC homeowners
- Reduces the risk of being financially stressed by homeownership
To apply it: calculate your actual monthly take-home pay (use our NYC paycheck calculator), then multiply by 0.35. That's your maximum sustainable monthly housing payment including mortgage, taxes, insurance, and HOA.
Example: A single NYC resident earning $175,000 takes home approximately $109,000/year — about $9,083/month. Applying the 35% net rule: $9,083 × 0.35 = $3,179/month max total housing cost. With $1,000/month in taxes and insurance, that supports a mortgage payment of about $2,179/month — roughly a $330,000 loan at 6.875%, supporting a home purchase of around $412,000 with 20% down. Much lower than the gross-rule estimate of $555,000.
Calculate Your Actual NYC Take-Home Pay
See exactly what you'll bring home after federal, NY state, NYC city taxes, and FICA — the foundation of any honest affordability calculation.
Calculate My NYC Net Pay