Compare the net cost of an interior painting project with recurring maintenance savings and other defensible annual benefits. The calculator reports simple payback, horizon net benefit, and simple ROI while keeping subjective value assumptions under your control rather than presenting them as guaranteed returns.
Simple payback indicates how long equal annual benefits would take to recover the initial cost. It does not discount future cash flows.
A fresh interior does not guarantee rent, occupancy, or resale gains. This tool evaluates your assumptions and excludes discount rates, financing, taxes, and one-time sale proceeds.
A $4,500 net project cost with $400 annual maintenance savings and $500 in recurring occupancy or rental benefit produces $900 per year. Simple payback is 5 years. Over seven years, net benefit is $1,800 and simple ROI is 40%.
Use recurring costs reasonably avoided by completing the project now, compared with the actual alternative.
Not as an annual benefit. Model a one-time sale value in a dated cash-flow analysis instead.
With zero recurring benefits, simple payback is not defined even if the project has aesthetic or personal value.
No. Subtract downtime costs from benefits or add them to net project cost before calculating.
No. The displayed ROI is horizon net benefit divided by initial cost and is not annualized or discounted.
| Included | Not automatically included |
|---|---|
| Net upfront cost | Loan interest and discount rate |
| Recurring maintenance savings | One-time resale proceeds |
| User-supported annual value | Taxes and changing benefit rates |