New Chapter

1. The Multiple-Income Trap (Tax Brackets)

When you hold multiple income streams simultaneously or sequentially in one year, each payor typically acts as if that is your only income.

• The Risk: Your main job from Jan-May, your retirement checks starting in June, and your part-time job starting in July will each withhold taxes using lower brackets. When combined on your tax return, your total income might push you into a higher tax bracket, meaning not enough tax was withheld overall.
• Why it matters: You could end up owing money when you file.

2. Social Security Earnings Test & Taxes

If your retirement checks include Social Security and you are under your Full Retirement Age (FRA):

• The Earnings Limit: For 2026, if you earn over a specific threshold from your part-time job, Social Security will temporarily deduct $1 from your benefits for every $2 you earn above that limit.
• Taxability: If your combined income (adjusted gross income + non-taxable interest + half of your Social Security) exceeds $25,000 (single) or $32,000 (married filing jointly), up to 50% to 85% of your Social Security benefits become taxable.

3. Your New Tax Form Checklist

Next January, you will receive a larger variety of tax documents than usual. Do not file until you have gathered all of them:

• Form W-2 (Former Job): From your full-time employment (Jan–May).
• Form W-2 (Part-Time Job): From your new employer (July–Dec).
• Form 1099-R: From your pension, 401(k), or IRA provider detailing your retirement checks.
• Form SSA-1099: If any of your retirement checks came from Social Security.

4. Immediate Action Plan

To prevent a tax surprise, take these steps before the end of 2026:

• Step 1: Check your total withholding. Use the IRS Tax Withholding Estimator online. Plug in your year-to-date earnings from your old job, your current part-time pay stub, and your retirement check stubs.
• Step 2: Adjust your part-time W-4. If the estimator shows you are under-withholding, submit a revised Form W-4 to your part-time employer. Use Step 4(c) on the form to request an "extra amount" of withholding from each paycheck.
• Step 3: Adjust retirement withholding. If your retirement checks are from a private pension or annuity, you can submit Form W-4P to the plan administrator to adjust how much tax they strip out of each check.