Curated by: Rubric Advisors
Tax Planning
Earned Income vs Unearned Income
Earned and unearned income are taxed differently and determine eligibility for Social Security credits, retirement contributions, and credits like the EITC.
Earned Income vs Unearned Income
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Earned vs Unearned Income Overview
- Earned income results from personal labor or active business participation
- Unearned income comes from investments, pensions, and other non-work sources
- The distinction affects payroll taxes, retirement eligibility, and tax credits
- Both types are reported differently on your federal tax return
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Full Guide
Earned vs Unearned Income Overview
- Earned income results from personal labor or active business participation
- Unearned income comes from investments, pensions, and other non-work sources
- The distinction affects payroll taxes, retirement eligibility, and tax credits
- Both types are reported differently on your federal tax return
What Counts as Each Type
- Earned: wages, salaries, tips, commissions, and net self-employment income
- Earned: taxable scholarship amounts used for living expenses and combat pay
- Unearned: dividends, interest, capital gains, rental income, and royalties
- Unearned: pension withdrawals, Social Security benefits, and annuity distributions
Social Security and Retirement Eligibility
- Only earned income counts toward Social Security credits and benefit calculations
- The 2025 Social Security wage base is $176,100 for the 6.2% OASDI tax
- IRA contributions require earned income at least equal to the contribution amount
- 401(k) deferrals require W-2 wages or self-employment income to participate
Self-Employment Tax
- Self-employment tax is 15.3%: 12.4% Social Security plus 2.9% Medicare
- Applies to net self-employment income above $400 per year
- Half of SE tax is deductible as an above-the-line adjustment on Form 1040
- S-corp election can reduce SE tax by splitting income into salary and distributions
Kiddie Tax on Unearned Income
- Children under 19 or full-time students under 24 face the kiddie tax rules
- First $1,350 of unearned income is tax-free; next $1,350 taxed at child's rate (2025)
- Unearned income above $2,700 is taxed at the parent's marginal rate (2025)
- Earned income from a child's job is taxed at the child's own lower rate
EITC and Medicare Surtaxes
- The EITC requires earned income and can be worth up to $7,830 for large families
- The 0.9% additional Medicare tax applies to earned income above $200K or $250K joint
- The 3.8% net investment income tax applies to unearned income above those thresholds
- Spousal IRA allows a non-working spouse to contribute based on the other's earnings
Key Takeaways
- Earned income drives payroll taxes, Social Security credits, and retirement eligibility
- Unearned income faces no payroll tax but is subject to the 3.8% NIIT above thresholds
- Understand which income type you generate to plan contributions and credits properly
- Consult a qualified tax advisor to optimize your mix of earned and unearned income
Related Topics
Kiddie Tax Rules: What Parents and Grandparents Need to Know
The kiddie tax applies a parent's tax rate to a child's unearned income above certain thresholds, affecting UGMA/UTMA accounts and investment gifts.
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Self-employed individuals, investors, and retirees often owe quarterly estimated taxes, understanding safe harbor rules and payment timing helps avoid underpayment penalties.
Tax PlanningNet Investment Income Tax (NIIT) & Medicare Surtax
High earners face two additional taxes above the standard rates: the 3.8% Net Investment Income Tax and the 0.9% Additional Medicare Tax. Understanding what triggers these surtaxes and how to manage exposure can save thousands annually.