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What tax planning should I do in my last year as a W-2 employee?

Side Hustle + W-2advanced3 answers · 6 min readUpdated February 28, 2026

Quick Answer

Your last W-2 year offers unique tax advantages: maximize 401(k) contributions (up to $23,500 for 2026), time your freelance income carefully, and consider bunching deductions. You can potentially save $3,000-8,000 in taxes with proper planning across both income sources.

Best Answer

PS

Priya Sharma, Small Business Tax Analyst

Best for employees planning to leave their job within the next 12 months to freelance full-time

Top Answer

How to maximize your tax savings in your final W-2 year


Your transition year from W-2 to freelance creates a unique tax planning opportunity. You have access to employee benefits for part of the year while building freelance income, allowing you to optimize across both income streams.


The key is strategic timing of income and deductions to minimize your overall tax burden.


Example: $85,000 W-2 salary with $30,000 freelance income


Let's say you earn $85,000 at your W-2 job and plan to leave in October, while building $30,000 in freelance income throughout the year. Without planning, you'd owe taxes on $115,000 of combined income.


Here's how strategic planning saves money:


January-September (W-2 period):

  • Maximize 401(k): Contribute $23,500 (reduces taxable income to $61,500)
  • Max out HSA: $4,300 (further reduces to $57,200)
  • Total W-2 taxable income: $57,200

    • Freelance income timing:

  • Defer $10,000 of Q4 freelance payments to January (next tax year)
  • Current year freelance income: $20,000
  • Combined taxable income: $77,200 vs. $115,000 without planning

    • Key strategies for your transition year


    Maximize employee benefits while you have them:

  • 401(k) contributions: You can contribute up to $23,500 for 2026, but only while employed. If you leave mid-year, you lose this opportunity.
  • HSA contributions: Max out your $4,300 contribution early in the year. You can't contribute once you lose employer health coverage.
  • Dependent care FSA: Use up to $5,000 for childcare expenses through your employer plan.

    • Time your freelance income strategically:

  • Defer December invoices: Send invoices in late December but request payment in January to push income to the next tax year.
  • Accelerate expenses: Purchase equipment, software, or office supplies in December to claim deductions in your higher-income year.
  • Bunch business deductions: If you're close to itemizing, bunch deductible expenses into one year.

    • Set up retirement accounts for next year:

  • SEP-IRA: Once you're full-time freelance, you can contribute up to 25% of net self-employment income (maximum $70,000 for 2026).
  • Solo 401(k): Allows both employee and employer contributions, potentially letting you save more than a SEP-IRA.

    • Tax planning comparison table



    *Assumes 24% marginal tax bracket


    What you should do before leaving your W-2 job


    1. Calculate your maximum 401(k) contribution and adjust payroll deductions to hit exactly $23,500 by your last paycheck

    2. Front-load your HSA contributions early in the year

    3. Document your freelance expenses meticulously - you'll need detailed records for Schedule C

    4. Set up quarterly estimated tax payments for your freelance income using Form 1040-ES

    5. Consider your health insurance transition and factor premiums into your freelance rate calculations


    Use our quarterly estimator tool to calculate exactly how much you should set aside for taxes on your freelance income.


    Key takeaway: Strategic planning in your W-2 transition year can save $3,000-8,000 in taxes by maximizing employee benefits, timing income, and accelerating business deductions. The key is acting before you lose access to employer-sponsored benefits.

    Key Takeaway: Strategic planning in your W-2 transition year can save $3,000-8,000 by maximizing 401(k) contributions, timing freelance income, and accelerating business deductions before losing employer benefits.

    Calculate your estimated taxes →

    Tax planning strategies comparison for different transition scenarios

    StrategyW-2 OnlyTransition YearFull Freelance
    401(k) Contribution$23,500$23,500*$0
    SEP-IRA/Solo 401(k)$0$0Up to $70,000
    HSA AccessYesYes*No (unless spouse)
    Quarterly PaymentsNoYes (freelance portion)Yes
    Schedule C DeductionsNoYesYes
    Self-Employment TaxNoPartialFull (15.3%)

    More Perspectives

    JO

    James Okafor, Self-Employment Tax Specialist

    Best for high-earning employees who will maintain similar or higher income as freelancers

    Special considerations for high-earning W-2 to freelance transitions


    If you're earning $100K+ in your W-2 job and planning a similar freelance income, your tax planning becomes more complex but also more valuable. High earners face unique challenges like the Additional Medicare Tax and potential estimated tax penalties.


    Managing the income cliff effect


    High earners often face a dramatic change in cash flow and tax obligations. Your W-2 job automatically withholds taxes, but as a freelancer, you're responsible for quarterly payments on potentially irregular income.


    Example scenario: You earn $150,000 as a W-2 employee and plan to freelance at $180,000 annually.


    Key planning moves:

  • Maximize 401(k) and mega backdoor Roth: If your employer offers after-tax 401(k) contributions, you can potentially contribute up to $70,000 total for 2026
  • Bunch charitable deductions: If you typically donate $15,000 annually, consider making two years' worth of donations in your high W-2 year
  • Time Roth conversions carefully: Your transition year might create a lower-income window for Roth IRA conversions

    • Avoiding estimated tax penalties


    As a high earner, you're subject to stricter estimated tax rules. You must pay the lesser of:

  • 90% of current year tax liability
  • 110% of prior year tax liability (since your prior year AGI exceeds $150,000)

    • Failing to meet these requirements triggers penalties, even if you get a refund when you file.


    Setting up for long-term freelance success


    Use your final W-2 year to establish systems that will serve you as a freelancer:

  • Open a SEP-IRA or Solo 401(k) to maximize retirement savings on freelance income
  • Establish a business credit card while you still have W-2 income verification
  • Build an emergency fund of 6-12 months expenses to handle freelance income volatility

    • Key takeaway: High earners face more complex tax obligations when transitioning to freelance, including estimated tax penalties and Additional Medicare Tax, but also have access to more sophisticated tax planning strategies like mega backdoor Roth contributions.

    Key Takeaway: High earners transitioning to freelance face complex tax obligations including estimated tax penalties, but can access sophisticated strategies like mega backdoor Roth contributions worth $15,000+ in annual tax savings.

    PS

    Priya Sharma, Small Business Tax Analyst

    Best for employees who want to keep their W-2 job while scaling up freelance income

    Optimizing taxes with ongoing W-2 plus growing freelance income


    If you're planning to keep your W-2 job while significantly scaling your freelance work, your tax strategy focuses on balancing withholding across both income sources and maximizing deductions from your growing business.


    The withholding balance challenge


    With a W-2 job, your employer withholds taxes based only on your salary, not your total income including freelance work. This often leads to underpayment and penalties.


    Solution: Adjust your W-4 to have additional federal tax withheld from each paycheck to cover your freelance tax liability. This is often easier than making quarterly estimated payments.


    Example calculation:

  • W-2 salary: $75,000
  • Growing freelance income: $25,000
  • Additional tax owed on freelance income: ~$6,125 (including self-employment tax)
  • Additional withholding needed per paycheck: ~$235 ($6,125 ÷ 26 pay periods)

    • Scaling business deductions strategically


    As your freelance income grows, invest in deductible business expenses that will support further growth:

  • Home office setup: Dedicate space exclusively for business to claim the home office deduction
  • Professional development: Courses, conferences, and certifications related to your freelance work
  • Business equipment: Computer upgrades, software subscriptions, professional tools
  • Marketing and networking: Website development, business cards, professional memberships

    • Retirement planning across both incomes


    Maximize your 401(k) through your W-2 job first ($23,500 for 2026), then consider additional retirement savings on your freelance income through a SEP-IRA or Solo 401(k).


    Key takeaway: Side hustlers with growing freelance income should adjust W-4 withholding to avoid underpayment penalties and strategically invest in business deductions that support further growth while maintaining their W-2 benefits.

    Key Takeaway: Side hustlers should adjust W-4 withholding to cover freelance taxes (avoiding quarterly payments) and strategically invest in business deductions that support growth while maintaining W-2 benefits.

    Sources

    w2 to freelancetax planningretirement contributionsincome timing

    Reviewed by Priya Sharma, Small Business Tax Analyst on February 28, 2026

    This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.