The 85% rule typically applies to the taxability of your Social Security benefits. No more than 85% of your benefits will ever be taxable, regardless of your income. So, you will receive 15% of your Social Security benefits tax-free, no matter how high your total income is. Depending on your income, you could see none of your benefits taxed. Similarly, you might see 50% of your benefits taxed. The taxability of your benefits depends on your total annual income.