Episode 393: How Roth Conversions Affect Social Security Taxes and IRMAA

David McKnight dissects a topic that causes a lot of confusion for retirees and pre-retirees: How  Roth conversions affect social security taxation and Medicare premiums (IRMAA). Some warn against Roth conversions in retirement as they can cause your Social Security to become taxable and could also raise your Medicare premiums. While that's true, David believes that the long-term benefits of Roth conversions can far outweigh the temporary, short-term pain they can cause. In order to determine whether your Social Security benefits will be taxed, the IRS tracks the so-called provisional income. If you perform a Roth conversion after you begin collecting Social Security, that additional income can push you above certain thresholds that cause your Social Security benefits to become taxable. Medicare premiums are also influenced by your income through IRMAA (Income-Related Monthly Adjustment Amount), and they look at your income from two years earlier to determine your IRMAA bracket, Rememb...