How much income is allowed before social security is taxable?

1200

It depends on if you are single or married. If you are single you can have "combined income" up to $25,000 of income before your Social Security becomes taxable; if you are married that number is $32,000. "Combined income" is defined as half of your Social Security income, plus any tax exempt income, plus any other income (from investments, pensions, rental property, etc.).