One last thing to mention that I was truly impressed by, before you start your researching…. the panel of Gentlemen who put their minds together behind all of this, have such amazing, impressive backgrounds and innovative minds, it’s no wonder this is taking off so fast. Founded in 2009, worked through all the Legalities for years and started enrolling this past November, 2012. 2nd largest growth in MLM the past 2 months in a row, ever since it hit our state, Arizona. Canada is now launched, too.
If the income is for personal services performed partly in the United States and partly outside the United States, you must make an accurate allocation of income for services performed in the United States. In most cases, other than certain fringe benefits, you make this allocation on a time basis. That is, U.S. source income is the amount that results from multiplying the total amount of pay by the fraction of days in which services were performed in the U.S. This fraction is determined by dividing the number of days services are performed in the United States by the total number of days of service for which the compensation is paid.
Now, all that said, if capital (savings) grows faster than the growth of the economy, those with savings will see their wealth grow at a faster rate than those who rely on the growth of their income. While this is not an extension of Piketty's argument (you can't take an idea that applies to a population and a whole economy and boil it down to the individual like this), it's not an unreasonable conclusion to take and apply to your own life. (Piketty does talk about this on an individual level, but says it's more impactful for billionaires vs. millionaires – though we have limited data into individuals)
Came to the U.S. as an immigrant in 1968 from a poor Asian country with only $100 in my pocket. Took advantange of 401-K savings plan by contributing 10% of my pay. My employer matched the first 6% savings (50 cents/dollar saved). Did not know anything about investment so 100% of 401-k money was invested in index 500. No other savings except 401-K. Retired in 1999 at 55 years old with about $1.2 million in 401-K and $450,000 lump sum pension which I rolled over to IRA. I invested this money in bonds and only buy equities (small cap index) whenever value drop to at least 50% of its high. I made a lot of money by investing in small cap index (ticker, IWM). Because of the risk involved, I don’t buy individual stock.
For a person working for a wage, their source of income is their job, or their labor (aka their time that they sell to someone). But you can own a house, and rent it out, and when your renters pay you renter every month, the source of that income check is your rental property, or your house. It would just be called rental income. If you have money in the bank in an account that pays interest, those interest payments are another source of income. We can say the source is interest payments, or we can identify the asset that is generating rent, and say your money in the bank that is generating “rent” (aka interest) is your source of income.