Exactly and the 20% is optimistic depending on how you're shifting your income.Tail wagging the dog
Create advertising company (cost) and pay taxes on any income on company (cost)
Build pool (cost)
Paint pool (cost)
Pay $1,000 a year to your own company to “advertise”… ok cool.
Get to deduct $1,000 from your total taxable income and save (probably) <$200 a year in Taxes.
Estimation on how long it would take to make the pool a total “wire off”? Probably 40-60 years minimum.
That's also assuming you already have an advertising company. If it doesn't already exist you're paying the set up and administrative cost (lawyer to set up, cpa to do tax returns, etc). End up net negative so you can say you "wrote off your pool".