When you invest in a dividend-paying stock, you are buying a share of the company and you literally become part-owner of that business. As the company grows and generates extra cash that it doesn’t necessarily want to re-invest, it might decide to return some of the extra cash to the shareholders in the form of dividends. And because you own a fraction of the company, you will receive a portion of the cash!
Rental properties are defined as passive income with a couple of exceptions. If you’re a real estate professional, any rental income you’re making counts as active income. If you’re "self-renting," meaning that you own a space and are renting it out to a corporation or partnership where you conduct business, that does not constitute passive income unless that lease had been signed before 1988, in which case you’ve been grandfathered into having that income being defined as passive. According to the IRS, "it does not matter whether or not the use is under a lease, a service contract, or some other arrangement."
While all employees can benefit from 401(k) plans right now, the retirement options for Americans have not been improved to suit the ever-changing needs of the elderly. One of the biggest reasons Americans can’t save as they used to is debt. At present, people are in debt even before they are fully employed. If you are in debt like most Americans, then earning passive income is more important than ever. It can help you pay down debt and generally make you more financially secure.

The most liquid of the private investments are investing in equity or credit hedge funds, real estate funds, and private company funds. There will usually be 6 month – 3 year lockup periods. The least liquid of the private investments are when you invest directly into private companies yourself. You might not be able to get your money out for 5-10 years, depending on the success of the company and upcoming liquidity events.
When I did her recent tax return she had $45,000 in passive losses from the rentals and $35,000 in income from her S-Corporation. I called her and found out how many hours she had only worked for three months in her S-Corp, which was less than 500/750 hours per year.  I changed the nature of the income from the S-Corporation to passive, thereby eating up the passive losses from the rental. 
In the case of an activity with respect to which any deductions or credits are disallowed for a taxable year (the loss activity), the disallowed deductions are allocated among your activities for the next tax year in a manner that reasonably reflects the extent to which each activity continues the loss activity. The disallowed deductions or credits allocated to an activity under the preceding sentence are treated as deductions or credits from the activity for the next tax year. For more information, see Regulations section 1.469-1(f)(4).

I am an English major and a herbalist with so many ideas and no extra income to fulfill them. I recently started renting my extra apartment in the attic with Airbnb. It’s amazing how fast I accumulated some money for few hours of work between guests. Now I want to persue all my dreams of opening an online herbal store, publishing my ebook of treating Ulcerative Colitis with herbs, blogs, and videos, and pretty much all of the ideas mentioned here. I will save this article as its really helpful for whomever needs some ideas…