Top 5 Mistakes Retirees Make with Social Security and the IRS

Common retirement errors that cost time and money

Retirement brings new financial rules and tax traps. Many retirees assume Social Security and IRS rules are simple, but small mistakes can cause increased taxes or large penalties.

This guide reviews the top 5 mistakes retirees make with Social Security and the IRS and gives clear, practical steps to avoid them.

Top 5 Mistakes Retirees Make with Social Security and the IRS

Mistake 1: Claiming Social Security Too Early

Starting benefits at the earliest age reduces monthly payments for life. People who claim at 62 often collect significantly less than if they wait until full retirement age or 70.

Think about longevity, spouse benefits, and ongoing earnings. If you expect to work or have other income, early claiming can increase taxes on benefits.

• Consider break-even age calculations before claiming.
• Factor in spousal and survivor benefits if you are married.
• Run scenarios at ages 62, full retirement age, and 70.

Mistake 2: Not Understanding How Social Security Is Taxed

Social Security can be taxable up to 85 percent depending on provisional income. Many retirees do not know how combined income determines the taxable portion.

Provisional income includes adjusted gross income, tax-exempt interest, and half of Social Security benefits. This can push you into a higher tax bracket or trigger additional Medicare premiums.

• Track all income sources that affect provisional income.
• Use IRS worksheets or tax software to estimate taxable benefits.
• Adjust withholding or make estimated tax payments to avoid surprises.

Mistake 3: Missing Required Minimum Distributions (RMDs)

Failing to take RMDs from traditional IRAs and 401(k)s triggers a 25 percent penalty on the missed amount. This penalty was reduced from 50 percent, but it is still steep and avoidable.

RMD rules vary by account type and age. Make a calendar reminder and confirm custodial calculations each year.

• Know your RMD start age and the calculation method.
• Consider taking RMDs in early months to leave room for corrections.
• Use qualified charities or Roth conversions to reduce future RMD impact.

Mistake 4: Poor Coordination of Spousal, Survivor, and Government Pensions

Not coordinating benefits can reduce household income. Spouses often miss higher-value claiming strategies that maximize lifetime household benefit.

Public employees may face the Windfall Elimination Provision (WEP) or Government Pension Offset (GPO). These rules reduce Social Security for those with government pensions not covered by Social Security.

• Evaluate which spouse should claim first and when to switch strategies.
• Check if WEP or GPO applies to you and recalculate expected Social Security.
• Talk with a benefits specialist before filing to avoid irreversible choices.

Mistake 5: Inadequate Tax Planning and IRS Communication

Retirees often fail to plan for tax brackets, Medicare Income-Related Monthly Adjustment Amounts (IRMAA), and possible audits. Missing tax filings or ignoring IRS notices makes problems worse.

Good tax planning includes using Roth conversions, adjusting withholding, and responding to IRS letters promptly. Small planning moves can reduce lifetime taxes and avoid penalties.

• Estimate tax brackets after adding Social Security and RMDs.
• Consider partial Roth conversions in low-income years to smooth taxes.
• Always respond to IRS correspondence and set up payment plans if needed.

Quick action steps to protect benefits and avoid IRS penalties

• Run multiple Social Security claiming scenarios before filing.
• Create a retirement income calendar with RMD and tax dates.
• Monitor provisional income and adjust withdrawals to control taxable benefits.
• Consult a tax advisor for Roth conversion timing and IRMAA planning.

Real-world example

Case Study: Joan and Mark are age 66 with a modest pension and $600,000 in IRAs. Joan claimed Social Security at 62 and receives a permanently reduced benefit. They missed their first RMD one year and received a large IRS penalty.

They reviewed their situation with a tax advisor. They delayed Mark’s claim to 70, scheduled RMDs monthly to avoid mistakes, and performed two small Roth conversions in low-income years. Over five years they reduced taxable Social Security and avoided further penalties.

Checklist before you file or claim

1. Calculate expected monthly Social Security at different claim ages.
2. Estimate provisional income and possible taxable portion of benefits.
3. Confirm RMD rules with your account custodian and set reminders.
4. Check for WEP/GPO if you have a government pension.
5. Plan Roth conversions or withholding changes in low-income years.

Final practical tips

Small, routine actions prevent large problems. Keep clear records, use simple calendars for RMDs, and run Social Security estimators before filing.

When in doubt, consult a certified financial planner or tax professional who specializes in retirement issues. The right guidance often pays for itself through reduced taxes and avoided penalties.