numberconvert.com
Retirement Planning

Roth Conversion (Roth IRA Conversion)

The process of moving money from a traditional IRA or 401(k) to a Roth IRA by paying taxes on the converted amount now in exchange for tax-free growth and withdrawals later.

Also known as: ira conversion, traditional to roth, roth ira conversion

What You Need to Know

A Roth conversion is a strategic tax move where you voluntarily pay taxes today on pre-tax retirement savings to gain tax-free status forever. It's essentially pre-paying your retirement taxes at today's (hopefully lower) tax rates.

How It Works:

Traditional IRA/401(k):

  • Contributions are pre-tax (tax deduction now)
  • Growth is tax-deferred
  • Withdrawals taxed as ordinary income in retirement
  • Required Minimum Distributions (RMDs) at age 73

After Roth Conversion:

  • Pay taxes on converted amount in year of conversion
  • All future growth is tax-free
  • Withdrawals are 100% tax-free in retirement
  • No RMDs ever (in your lifetime)

Example: You have $100,000 in Traditional IRA, in 24% tax bracket

Convert to Roth:

  • Taxes owed: $100,000 Γ— 24% = $24,000
  • After-tax Roth IRA balance: $100,000 (you pay taxes from other funds)
  • Future growth: Tax-free forever
  • RMDs: None

When Roth Conversions Make Sense:

1. Low-Income Years βœ… Retired early (before Social Security/pension starts) βœ… Career gap, sabbatical, maternity leave βœ… Business loss year βœ… Recent retirement (before RMDs kick in)

Example:

  • Normal income: $150,000 (24% bracket)
  • Early retirement year: $40,000 (12% bracket)
  • Convert $60,000 at 12% tax rate = $7,200 tax
  • vs waiting until 24% bracket = $14,400 tax
  • Savings: $7,200

2. Expecting Higher Tax Rates in Future βœ… Currently in low bracket, expect to be in higher bracket in retirement βœ… Belief that tax rates will increase legislatively βœ… Large traditional IRA will force high RMDs later

3. Estate Planning βœ… Want to leave tax-free Roth IRA to heirs βœ… Heirs in high tax brackets (better for them to inherit Roth) βœ… Reduce taxable estate (pay taxes now, less for heirs later)

4. Avoid RMDs βœ… Don't need RMD money for living expenses βœ… RMDs push you into higher tax bracket βœ… RMDs trigger Medicare IRMAA surcharges

5. Tax Diversification βœ… All savings in traditional 401(k)/IRA βœ… Want mix of taxable, tax-free, and tax-deferred accounts βœ… Flexibility to manage retirement tax bracket

Roth Conversion Strategies:

Strategy 1: Fill Up Tax Bracket Convert just enough to stay in your current bracket

Example (Married Filing Jointly, 2024):

  • Current income: $70,000
  • 12% bracket ends at: $94,300
  • Available room: $24,300
  • Convert $24,300 at 12% tax rate = $2,916 tax
  • Avoids jumping to 22% bracket

Strategy 2: Partial Conversions Over Multiple Years Spread large conversions across low-income years to avoid bracket creep

Example:

  • Traditional IRA: $500,000
  • Convert $50,000/year for 10 years
  • Stay in 22% bracket vs jumping to 32% with one-time conversion

Strategy 3: Convert in Early Retirement (Ages 60-72) Sweet spot between retirement and RMDs

Timeline:

  • Age 60-62: Retire, low income
  • Age 62-70: Delay Social Security
  • Convert Traditional IRA to Roth during these years
  • Age 73: RMDs start (but your IRA is now Roth, no RMDs!)

Strategy 4: Back-Door Roth (for High Earners) If income too high for direct Roth contributions:

  1. Contribute to non-deductible Traditional IRA
  2. Immediately convert to Roth
  3. Pay taxes only on growth (minimal if immediate)

Strategy 5: Roth Conversion Ladder (Early Retirement) For retiring before 59Β½:

  1. Convert Traditional to Roth
  2. Wait 5 years
  3. Withdraw converted principal penalty-free
  4. Access retirement funds before 59Β½ without penalty

Tax Implications:

Taxes Owed: Converted amount is added to taxable income for the year

Example:

  • Salary: $80,000
  • Convert: $40,000
  • Total taxable income: $120,000
  • Extra tax on conversion: ~$8,800 (22% bracket)

No Penalty:

  • No 10% early withdrawal penalty on conversions (at any age)
  • BUT must wait 5 years to withdraw converted principal or face penalty

Can't Undo:

  • Before 2018: Could "recharacterize" (undo) conversion
  • After 2018: Roth conversions are permanent
  • Choose conversion amount carefully!

5-Year Rule: Each conversion starts its own 5-year clock:

  • Convert in 2024 β†’ can withdraw penalty-free in 2029
  • Convert in 2025 β†’ can withdraw penalty-free in 2030

Mistakes to Avoid:

❌ Converting too much: Pushes you into higher tax bracket ❌ Paying taxes from IRA: Reduces conversion benefit (pay from other funds) ❌ Converting right before RMD: Must take RMD first (can't convert RMD) ❌ Not considering Medicare: Can trigger IRMAA surcharges (higher Part B/D premiums) ❌ Ignoring state taxes: Some states tax conversions even if no income tax on retirement

Roth Conversion Impact on Medicare:

Large conversions can push income above IRMAA thresholds:

Income (MAGI)Part B Premium Increase
<$106,000$0 (standard premium)
$106,000-$133,000+$69.90/month
$133,000-$167,000+$174.70/month
$167,000-$200,000+$279.50/month

Example: Convert $80,000, pushes income to $135,000 β†’ pay extra $2,096/year in Medicare premiums for 2 years

Who Should NOT Do Roth Conversions:

❌ Expect to be in lower tax bracket in retirement ❌ Need IRA funds for current expenses (can't afford tax bill) ❌ Over age 70 with limited life expectancy (not enough time to benefit) ❌ In peak earning years (high tax bracket) ❌ State has high income tax now, plan to retire in no-tax state

The Math:

Roth conversion wins if: Tax rate at conversion < Tax rate at withdrawal

Example:

  • Convert at 12% tax rate (low income year)
  • Would have withdrawn at 24% in retirement
  • Roth conversion saves 12% on entire balance + growth

The Bottom Line: Roth conversions are powerful for those in low-income years or expecting higher future tax rates. The key is timing conversions during your lowest tax years and avoiding bracket creep. Consult a tax professional before large conversions.

Sources & References

This information is sourced from authoritative government and academic institutions:

  • irs.gov

    https://www.irs.gov/retirement-plans/roth-iras