01 · The hour test
Make 17x more by managing your home versus your tech job
An hour at the day job
$296/hr
Salary divided by hours actually worked, across the year.
An hour on the cottage
$5,000/hr in deduction
A deduction is not cash. It lowers taxable income. At a 32 to 40 percent combined marginal rate that is roughly $1,600 to $2,000 of reduced tax per hour.

Same hour. One paid a wage. The other bought a Beach Cottage and earned 17x more.
The same hour is not worth the same everywhere.
The card above is a directional comparison, and you can change every number in it. An hour at a day job is your salary divided by the hours you actually work. An hour spent setting up and running a short-term rental can produce a cost segregation deduction, and that deduction is worth its cash value at your marginal rate. On the default figures the rental hour is worth about seventeen times the day-job hour.
A deduction lowers your taxable income rather than paying you directly, so the honest way to read it is at your combined marginal rate. The card shows that range. A real engineered study sizes the actual first-year deduction on a real property, and your CPA confirms how it offsets your income before you rely on any figure.