Knowing a second language can literally put money in your pockets.
Even if you are not linguist or an expert, you can use the mere fact that you are fluent in the language to your advantage.
If you want to know how to make extra money from home, then all you need to do is look no farther than your own words.
What you can teach
You can literally teach any language of your choice, granted that you have a thorough knowledge of the language. You can never go wrong with teaching languages like Spanish, French, and German because they are so prominent, but you can also make a lot of money teaching some of the less common languages. Learning many of the Asian languages like Mandarin Chinese, Japanese, and Korean is quite popular now, so you will find many opportunities with them as well. If you want to know how to make extra money from home, then you only need to know a language that someone wants to learn no matter how rare it is.
What you must have
If you want to learn how to make extra money from home using this method, then you will have to have certain things in place. You must first have a rock solid knowledge of the language that you would like to teach. This could mean that you grew up in the country, it was spoken around you when you were growing up, or you have an extensive academic background in the subject. Either way, you must have near native fluency of reading, writing, and speaking the language in order to teach it properly. Do not bother to teach the language if you are lacking in any of those areas because you will be unable to teach it properly. In addition to that knowledge, you will also have speak English and you will need get a computer, Internet service, a microphone or webcam to use during lessons.
How it works
Using this method in terms of how to make extra money from home will require some ingenuity on your part. Since you will be teaching online, you will have to be able to explain the material online whether you have your students read a textbook with you or send them assignments via the Internet. A lot of language tutors will do live lessons on Skype and show their live images or just use their voice to explain everything.
Your income potential
This can be more than a simple method of how to make extra money from home if you want it to be. You can earn money by doing live tutoring sessions on Skype, create a website, or you can write ebooks or create language learning products to sell online. The sky is the limit because you can charge whatever you want for your time and the products that you create.