It says here that Social Security money is not considered as earned income
https://www.irs.gov/credits-deductions/individuals/earned-income-tax-credit/earned-income
My friend told me that if social security is the only source of income, even if it is over the $4050 (2017 limit for married filing separately), then you do not have to file taxes. I do not believe this is true.
This link https://ttlc.intuit.com/questions/1901402-do-i-need-to-file-my-own-taxes-if-i-m-a-dependent
says that the social security money is considered as "unearned income" and you have to file taxes if the social security money is greater than $1050/year. This pretty much means that if you received social security money over $1050/year (which is not much at all), you must file taxes.
