Revenue Investment / ROI

BnB investment calculator

Purchase cost and running costs against what the rooms earn: profit after tax, after the cost of capital, and the payback year.

The purchase
Purchase cost price plus fit-out
$
Rooms you will rent out
rooms
Cost of capital what the money earns elsewhere
% / year
Income tax on profit
%
The operation
Month
Quarter
Year
Average price per room, per night
$ / night
Occupancy nights sold of nights open
%
Fixed costs utilities, insurance, upkeep
$ / month
Variable costs cleaning, laundry, supplies
% of bookings
Commission what booking sites take
%
Admin and tax costs accounting, fees, property tax
$ / month
Yearly return after tax
11.0% Strong
$46,130 after tax for the year on $420,000
Profit before tax
$54,270
After cost of capital
$25,130
Income tax
$8,141
Payback
9.1 yrs
Gross bookings $96,360
Commission − $14,454
Fixed + variable costs − $24,036
Admin and tax costs − $3,600
Income tax − $8,141
Cost of capital − $21,000
Left after capital $25,130
vs your city
—% median asking price, same bedroom count
Your assumed rate sits — the measured median for comparable listings. Modelled revenue tools infer this number instead — how accurate are modelled estimates?
Check your rate against the market
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The assumption that decides everything

Every number above rests on the nightly rate and occupancy you typed. Modelled market tools will hand you both, inferred from calendars they cannot see behind — which is how a deal pencils at 11% and delivers 6%. Before you sign anything, check what comparable places in that market are actually asking.

01
Check the rate, not the estimate
Your $110 assumption drives every number here. Comparable asking prices are measurable today.
02
Underwrite the flat months
A deal that only works in festival season is a deal that fails in January.
03
Count the licence
Permit timelines and caps change the year-one number more than a point of interest rate.
Check the rate before you underwrite it
Three scans a week, free, no card. Measured asking prices for the market you are buying into.
Scan that market
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