Retirees often face the unexpected reality that their Social Security benefits, a cornerstone of their financial security, can be subject to both state and federal income taxes. While 42 U.S. states already exempt these benefits from state-level taxation, navigating federal taxes remains a critical concern for many. However, a straightforward financial move involving retirement accounts could significantly reduce or even eliminate federal tax obligations on these benefits, according to analysis by Katie Brockman for The Motley Fool.
The key to mitigating federal taxes on Social Security benefits lies in understanding and strategically managing one’s ‘combined income.’ This figure dictates how much of a retiree’s benefits will be subject to federal taxation. For many, the retirement account chosen years before can have a direct and substantial impact on their tax burden in later life.
Understanding Federal Taxation on Social Security
Federal taxes on Social Security benefits are determined by a calculation known as ‘combined income.’ This figure is derived by adding your adjusted gross income (AGI), half of your annual Social Security benefit amount, and any other sources of income you may have, such as pensions, capital gains, dividends, or interest payments.
To illustrate, consider a scenario where a retiree’s only income sources are withdrawals from a traditional retirement account and Social Security benefits. If an individual withdraws $30,000 annually from their 401(k) and collects $24,000 per year in Social Security benefits, their combined income would be calculated as $30,000 (from 401(k)) plus $12,000 (half of the Social Security benefit), totaling $42,000.
Based on this combined income, retirees fall into one of three federal tax tiers, determining the percentage of their Social Security benefits subject to taxation. These thresholds, as provided by the Social Security Administration, are:
- 0% of benefits subject to federal taxes: For individuals with a combined income under $25,000, or married couples filing jointly with a combined income under $32,000.
- Up to 50% of benefits subject to federal taxes: For individuals with a combined income between $25,000 and $34,000, or married couples filing jointly with a combined income between $32,000 and $44,000.
- Up to 85% of benefits subject to federal taxes: For individuals with a combined income over $34,000, or married couples filing jointly with a combined income more than $44,000.
These income thresholds, notably, have remained unadjusted since the 1980s, when Social Security benefits first became subject to federal taxes. At that time, less than 10% of beneficiaries owed federal taxes on their monthly checks, according to the Social Security Administration. However, with ongoing inflation and annual cost-of-living adjustments (COLAs) pushing incomes higher over time, a growing number of retirees are finding themselves subject to these federal taxes.
The Roth Advantage: A Simple Move to Reduce Taxes
The most direct way to avoid federal taxes on Social Security benefits is to keep one’s combined income below the lowest threshold ($25,000 for individuals or $32,000 for married couples filing jointly). Crucially, retirees do not necessarily need to reduce their actual income to achieve this. The type of retirement account used for withdrawals plays a pivotal role.
Herein lies the significant advantage of Roth retirement accounts, such as Roth IRAs and Roth 401(k)s. Withdrawals from these accounts are not included in the combined income calculations. This distinction is critical: by drawing income from a Roth account, retirees can effectively lower their calculated combined income without decreasing their overall available funds. If a sufficient portion of a retiree’s income originates from a Roth account, it can strategically push their combined income below the federal tax thresholds, thereby reducing or even eliminating federal taxes on their Social Security benefits.
This strategic approach highlights the importance of proactive tax planning well before retirement. By incorporating Roth accounts into their savings strategy, individuals can secure a significant advantage, potentially safeguarding more of their Social Security benefits from federal taxation and retaining a larger share of their hard-earned retirement income.
