Home Maintenance Budget Calculator
Calculate home maintenance budget using the 1-2% rule and square footage method.
Returns monthly savings target and category breakdown including HVAC and roof.
Annual home maintenance budgeting follows the industry-standard 1% Rule as a baseline, with several refinements based on home age, condition, and regional climate.
The 1% Rule:
Annual Budget = Home Value × 1%
The Square Footage Rule:
Annual Budget = Square Footage × $1.00
For older homes (20+ years), a more conservative estimate:
Annual Budget = Home Value × 1.5–2%
A more detailed bottom-up approach by system:
Total = HVAC + Roof + Plumbing + Electrical + Exterior + Appliances + Landscaping + Misc
Worked Example — $350,000 home, 2,200 sq ft, 15 years old:
- 1% rule: $3,500/year
- Square footage rule: $2,200/year
- Age-adjusted (1.5%): $5,250/year
Recommended budget: $4,000–$5,000/year (1.1–1.5%)
System-by-System Breakdown (annual reserve):
- HVAC (replace ~$6,000, lifespan 15yr): $400/yr
- Roof (replace ~$15,000, lifespan 25yr): $600/yr
- Water heater (replace ~$1,200, lifespan 10yr): $120/yr
- Exterior paint (~$4,000 every 7yr): $571/yr
- Gutters/drainage: $150/yr
- Plumbing/electrical miscellaneous: $300/yr
- Appliances reserve: $400/yr
- Landscaping/pest/misc: $500/yr
- System total ≈ $3,041/year
Key Insight: Homeowners who fund a dedicated maintenance account and spend proactively spend 30–40% less over 10 years than those who defer and pay emergency rates. A $500 HVAC tune-up can prevent a $7,000 compressor replacement.
How we build and check this calculator
This calculator runs entirely in your browser, so the numbers you enter stay on your device. The math behind it is written by hand and tested against worked examples and standard references before the page goes live.
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