It covers Rental Income (Real Estate) or Interest Income (Bank Deposits). Though it is best suited for retirement planning but it can also act as second income during working years. Big question is how to fix the target for Second Income. Very simple, if your Monthly Expense is 50k & residential property can yield rent of 25k then you need 3 residential units i.e. one for self and two for second income source.
I like to think about having an additional source of income as being sort of like an insurance policy. I interviewed one young woman who taught aerobics classes in the evenings after spending her days working as a videographer for news organizations. When she was unexpectedly laid off from her day job, she quickly doubled her aerobics teaching load and was able to keep herself afloat until she found a new full-time job. Some more examples of income multi-streaming are a teacher I know who sells used baby clothes out of her home and a young couple who run a small Internet business on the weekends. Just like these people, you can also pick a profitable project or create a business that matches your lifestyle. 
Investing in coins and collectibles: Buffalo nickels and Spiderman comic books are good examples of coins and collectibles that can rise in value, and thus offer opportunity for passive income investors. You'll need to get up to speed on the value of any coin or collectible under consideration, but once you do so, you're on the way to price appreciation on a commodity you'll be paying a lower price to buy, and will garner a higher price when you sell.
While compiling this list, I did my best to avoid scams, and stick with practical ideas that work. I have tried many (but not all) of these ideas. Some of these helped me earned a few dollars here and there, but there are some that helped me earn extra money on the side every single day — and some are still providing me with revenue! Note that not all ideas will fit your skills and abilities. What works for you depends on your abilities and your current financial situation.
If you’re into antiques, for example, you could check out garage sales for hidden deals then capitalize on your knowledge to turn a profit. Perhaps you’re into video games, specific brands of clothing, or something else. Whatever it is, with a little research, it’s possible to turn your knowledge into cash with an eBay store. Best of all, you can sell from the comfort of your own home.
I want to develop a passive income stream in the next 4 years, nothing grand, maybe an extra 500-1000 dollars a month, but I’m not sure how to go about it so I was wondering if you had any tips. I’m so-so as a writer, and am currently finishing up my second book (just write as a hobby), and in the past made about 30-50 dollars an hour as a free lance writer but that was a couple of years back, it was only for about 10-20 hours a month, and the gig just dried up. I just got particularly lucky with that. I’ve tried online poker as a means in the past, and which I learned A) was not passive income but hard work and B) I have an addictive personality which resulted in me losing the 4g I earned in 6 weeks over the span of 72 hours so that’s out of the picture. I also partook in some illegal selling of things when I was younger, but being a little older and wiser the risk-reward ratio for possibly ending up in Jail just doesn’t match up. I tried making three businesses (dog walking, house cleaning, and personal assistant) and while those all were succesful to varying degrees and earned me about 15-25 dollars an hour, they weren’t mobile and quiet honestly I don’t have the time to be a full time dog walker or run a house cleaning operation seeing as I’ll be in school, work, and athletics.

According to Uncle Sam, you need to be "materially involved" in an enterprise to earn active income. With passive income, it's just the opposite, as the IRS deems you to be earning passive income if you're not materially involved with a profit-making enterprise. By and large, expect income to be taxable if you are engaged in a passive income enterprise. You will need to report earnings to the IRS.
While it is important to find something that you love to do and turn it into a money making business, you do have to be cognizant of the return as you pointed out. There are many opportunities that I found and tried out that at the time seemed great. But when I took a step back, I realized that I was working a lot for very little income whereas other things I love doing brought in much more money.
* I use Personal Capital to track all my finances in one place. It’s much easier to use their free software to follow 28 accounts on one platform than to log into various accounts to check my balances. They’ve also got great tools for x-raying your portfolio for excessive fees, recommending a more optimized asset allocation, and planning for retirement with their Retirement Planner.
Maybe such a business is owning a McDonald’s franchise or something. If one has the capital (Feasibility Score 2), then the returns might be good (Return Score 6). But the Risk Score is probably under a 5, b/c how many times have we seen franchise chains come and go? Like, what happened to Quiznos and Jamba Juice? A McDonald’s franchise was $500,000… probably much more now?
Very enlightening. I like that you have a number of discreet passive income streams working for you. I”m not sure about such a large CD/ bank holding though, though it looks as though its giving you a fairly healthy income. How do you feel about a rising inflation rate on your effective real cash return? I’m looking to diversify beyond my current dividend passive income. Rental income is what I expect we’ll be harvesting next. P2P lending is a little too out of my comfort zone. I had a lot of exposure to consumer credit risk models at a prior role, and it scared me the heck away from consumer lending!
The challenge I’m facing and, I know it’s a good problem, is that the SF real estate has shot up about 35% in the last couple years. I’m sure you’re experiencing the same thing! So as the net worth is rising, the yield on the total portfolio is going down. Right now, it seems the only way to increase the passive income will be to raise the rent in December and to invest some of that cash in stocks, which I’m nervous to do in this market. Current allocation:
The key thing to note in those various streams is how few of them rely on my active participation on a daily basis and how they are fueled from savings. My active participation is in the blogs and $5 Meal Plan. Everything is passive, outside of routine maintenance like updating my net worth record, and none of them would be possible if I didn't have the savings to invest it.
The U.S. Internal Revenue Service categorizes income into three broad types, active income, passive income, and portfolio income.[1] It defines passive income as only coming from two sources: rental activity or "trade or business activities in which you do not materially participate."[2][3] Other financial and government institutions also recognize it as an income obtained as a result of capital growth or in relation to negative gearing. Passive income is usually taxable.
One aspect you might want to add to your scoring is “inflation protection”. At one end, bonds and CDs generally pay a fixed nominal coupon that doesn’t rise with inflation. Stock dividends and Real estate rents (and underlying property value) tend to. Not reallly sure how P2P lending ranks- though I suppose the timeframes are fairly short (1 year or less?) and therefore the interest you receive takes into account the current risk free rate + a premium for your risk. Now that I think about it, P2P lending probably deserves a lower score in the activity column than bonds too (since you probably need to make new loans more often).

Portfolio income can come from multiple sources – interest/bond coupons, stock dividends, financial strategies including derivatives and capital growth.  Each offers some cash flow and some also offer potential capital gain with some risk from liquidity and volatile prices.  In this low-yield environment, many investors rely too heavily on cash flows and to pursue this are venturing further into riskier areas than they’d normally consider.

Consider refinancing your mortgage if you haven’t done so in a while before interest rates go up further. Or consider leveraging cheap money responsibly to acquire hard assets. LendingTree Mortgage has one of the largest lending networks online, and they will contact you immediately with their offers. You want lenders competing for your business, and get hard quotes so you can pit them against each other.
I have been using,”multiple streams of income,” as my mantra during this rough patch. Being an interior designer easily translates into designing other things as well. I have been designing jewelry that is customized in price and style for different stores. I also opened an Etsy shop for my jewelry and for vintage items that I find in my treasure hunting for clients.I am bringing in an extra $1500-$3000 a month, and I am having fun! My first passion is always going to be interior design, and I am thankful for the clients I have!

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