Calculate the payback period of any investment

Depends on the industry. Software/SaaS: 12-24 months considered good. Capital projects: 3-5 years. Real estate: 7-15 years. The hurdle is your alternative use of capital + risk tolerance.

Generally yes — faster recovery = less risk. But shorter payback may also mean lower total returns. A 2-year payback project earning 50% total vs a 5-year payback earning 200% — the second is more valuable.

Payback = TIME to recover principal. ROI = total return on the investment. Payback ignores everything after break-even; ROI captures the full picture. Use both together.

Simplicity. Each rupee in year 5 is treated equal to a rupee in year 1, which understates risk. Discounted payback (using NPV-style discounting) is more accurate but harder to compute.

Quick screening of multiple projects, evaluating liquidity-constrained investments, and assessing political/regulatory risk where longer horizons are uncertain.

Yes — useful for: rental property breakeven, business franchise recovery, equipment purchases (cars, machinery for self-employed). For pure financial investments, ROI/CAGR are more useful.

Use cumulative subtraction: subtract each year's CF from the investment until you reach zero. The fractional year is interpolated. This calculator uses constant annual CF for simplicity.

Not always. NPV positive but 15-year payback may still be too risky for an early-stage company. Use both metrics together — NPV tells you total value, payback tells you risk timeline.