Retirees Delaying Social Security to 70 Risk $52,000 Tax Hit From Frozen $44,000 Threshold
Updated
Updated · 24/7 Wall St. · Jul 14
Retirees Delaying Social Security to 70 Risk $52,000 Tax Hit From Frozen $44,000 Threshold
2 articles · Updated · 24/7 Wall St. · Jul 14
Summary
$52,000 in extra federal tax, Medicare IRMAA surcharges and lost deductions can hit a high-income retired couple over five years, even after delaying Social Security to maximize benefits.
A married couple both aged 70 collecting $124,344 a year in Social Security and withdrawing $80,000 from a traditional 401(k) would have provisional income near $142,172, making about 85% of benefits taxable.
That leaves roughly $150,192 of taxable income after 2026 deductions and an estimated $22,870 federal tax bill, while income near Medicare's $218,000 joint IRMAA threshold and the senior bonus deduction phaseout raises the marginal cost further.
The trap stems from Social Security tax thresholds frozen for decades: once joint provisional income tops $44,000, annual COLAs and traditional-account withdrawals can steadily expose more benefits to tax.
The report says retirees can blunt the hit by building Roth savings before claiming benefits, timing withdrawals around Medicare's two-year lookback, and limiting traditional 401(k) draws that trigger deduction losses and surcharge cliffs.