Home Upgrade Economics Tool
See the true cost of doing nothing
Enter your project details to calculate net cost after incentives, payback period, and 10-year financial impact.
Project Cost & Incentives
$
Full installed cost before any incentives.
$
Utility, state, or program rebate at point of sale.
%
25C or other IRS credit rate (commonly 30%).
$
Portion of project cost eligible for the credit.
Displays in results for context.
Helps contextualize savings and replacement value.
Energy Savings
$
Current yearly fuel/energy bill for this system.
$
Projected yearly savings after upgrade.
Avoided Future Costs
yrs
Estimated years until the old system needs replacement.
$
What it would cost to replace the existing system as-is.
$
Yearly service/upkeep on the existing system.
yrs
How many years of avoided maintenance to count.
Financing Comparison optional
$
Leave blank to skip financing comparison.
yrs
Length of the financing agreement.
Your upgrade economics summary
Adjust inputs above and press Calculate to update.
Net Cost After Incentives
—
After rebate & tax credit
Est. Tax Credit Amount
—
Based on eligible amount & rate
Annual Energy Savings
—
Per year after upgrade
Simple Payback Period
—
Years to break even on net cost
Avoided Replacement Value
—
Future cost avoided
Avoided Maintenance
—
Over maintenance years
⭐ Adjusted Effective Net Cost
—
Net cost minus avoided future costs
10-Year Financial Impact
—
Value created over a decade
Savings as % of Energy Bill
—
Annual reduction in energy spend
📋 Financing Snapshot
Annual financing outlay —
Annual energy savings —
Net annual cash flow —
Loan term —
Estimation tool only. Results are projections based on inputs provided and are not a guarantee of savings, tax liability, or incentive eligibility. Federal, state, and utility incentive programs vary by location, income, equipment type, and installation details. Tax credit applicability depends on individual tax situation — consult a tax professional. A qualified contractor should verify all program values, equipment specifications, and installed costs before project commitment.
Want this calculator for your business?
Tampa Web Technologies builds conversion-focused interactive tools for HVAC, home performance, insulation, and home service businesses — customized to your market, programs, and brand.