Idle Mafia Game Income Calculator

Punch the buy-in you see on Territory or Properties, punch the income the inspect panel claims, and this calculator returns hours to break even. It is for Idle Mafia Game on Roblox, not for a spreadsheet hobby. If Harborfront lists at $500,000 tonight, use $500,000 tonight.

Family bonuses are optional. If your roster does not hold the node, leave the bonus at zero. Personal Properties usually have no Family multiplier. Districts might. The live inspect panel is the source. Strategy around idle buying is in the idle property build and how to get cash.

If payback is longer than a war you cannot staff, skip the prestige node. If payback is shorter than one sleep, buy it even if the art is a boring dock. The tier list already prefers filler districts for that reason.

Scripts that auto-buy properties will ignore this math. Turn them off until you like the numbers. Auto-bank remains a good idea either way — see scripts.

Worked example: a $500,000 dock at $12,000 per hour with no Family bonus pays back in about 41.7 hours, a little under two days of 24/7 idle. If you only collect twice a day, the real calendar time is still two days, but you must actually click collect. Missed collects are the silent tax this calculator cannot see. Set a reminder or use a helper that collects, not just one that buys.

Family bonus is a multiplier, not a reason to take a red lighthouse. A 10% bonus on a node you will lose tonight is negative expected value. Run the number at bonus zero first. If it still looks good, then paint it. That order keeps Expansion from turning you into a tourist with a calculator.

Compare two listings before you buy either. The cheaper node with the same hourly rate always wins. Prestige is for war score, not for this tool. War score lives on how to beat rivals.