Guide détaillé à venir
Nous préparons un guide éducatif complet pour le Freelance Retirement Planner. Revenez bientôt pour des explications étape par étape, des formules, des exemples concrets et des conseils d'experts.
The Freelance Retirement Planner projects retirement nest-egg value for self-employed workers who lack the employer 401(k) match that's central to traditional retirement math. Standard W-2 retirement assumes employee contribution + employer match (typically 3–6% of salary in 'free money'); freelancers must contribute the full amount themselves, but get access to higher contribution limits via SEP-IRA (up to 25% of net self-employment income, capped at $69,000 in 2024) or Solo 401(k) (employee $23,000 + employer-side 25% of net SE income, total cap $69,000, plus $7,500 catch-up if 50+). The calculator uses standard compound interest with annual contributions: FV = P × (1+r)^n + PMT × ((1+r)^n − 1) / r, where P is current savings, r is annual return, n is years to retirement, and PMT is annual contribution. Default 7% real return matches long-term US equity market average after inflation; 5% is conservative. Output projects total ending balance, breaks down contributions vs compound growth, and applies the 4% safe withdrawal rule (Trinity Study) to estimate sustainable retirement income. The biggest freelancer retirement risk is income irregularity. Salaried workers contribute on autopilot via payroll deduction; freelancers must remember to contribute, which is psychologically harder during lean months. Best practice: set up automatic monthly transfers (e.g., $1,000/month to SEP-IRA) treated like a fixed bill rather than waiting for year-end. This smooths the income-variability problem and dramatically improves long-term outcomes. Most freelance financial advisors target 20% of gross income for retirement (higher than W-2 norms because no employer match). SEP-IRA vs Solo 401(k) decision: SEP is simpler (1-page IRS Form 5305-SEP setup, no annual filings until $250k+ balance), 25% of net SE income limit. Solo 401(k) allows higher total contribution ($23k employee + 25% employer = potentially $69k vs SEP's ~$40k for typical incomes), plus Roth option, plus loan provisions, but requires annual Form 5500-EZ filing after $250k balance. Use SEP for simplicity and lower income; Solo 401(k) for high earners who want to maximize tax-advantaged space or want Roth flexibility.
- 1Step 1 — Enter current age, target retirement age, and existing retirement savings
- 2Step 2 — Enter annual freelance income (use average over last 3 years to smooth irregularity)
- 3Step 3 — Set contribution percentage (10% minimum, 20% strong, 25% if SEP-IRA max)
- 4Step 4 — Set expected return (7% historical equity average, 5% conservative)
- 5Step 5 — Calculator applies future value formula: FV = P(1+r)^n + PMT × ((1+r)^n−1)/r
- 6Step 6 — Outputs projected balance, split into contributions vs growth from compounding
- 7Step 7 — Applies 4% safe withdrawal rate to estimate sustainable annual retirement income
30 years × $16k/yr contribution + compounding on $50k initial = $1.84M. 4% rule = $73k annual income, replacing 91% of $80k working income.
Possible but requires aggressive saving (25% of net SE income)
20 years gives less compounding runway — high contribution rate compensates partially. 4% rule yields 47% of working income replacement.
Aggressive Solo 401(k) max contribution + 20-year horizon hits FIRE target of $1.5M+.
Solo 401(k) and SEP-IRA contribution sizing
Freelance income → retirement projection
FIRE community planning for self-employed
Tax planning year-end (Roth vs traditional decision)
Comparing self-employment to W-2 retirement trajectories
Retirement readiness assessment for career changers
SEP-IRA vs Solo 401(k) — which should I choose?
Solo 401(k) for high earners who want to maximize tax-advantaged space: $23k employee deferral + 25% employer-side, total up to $69k (2024), plus Roth option and loan provisions. SEP-IRA for simplicity: 1-page setup, 25% of net SE income cap (~$40k for typical incomes), no annual filings until $250k balance. Both are pre-tax; Solo 401(k) is the only one with Roth option.
How do I handle irregular freelance income?
Set up automatic monthly transfers to your retirement account treated as a fixed expense, sized to expected annual contribution ÷ 12. Use average of last 3 years' net SE income for the contribution percentage. Make a catch-up contribution at year-end if you had a strong year. The autopilot approach beats waiting for year-end every time.
What about Roth IRA?
Roth IRA has $7,000/year limit (2024, $8,000 if 50+) regardless of self-employment status, with income phase-out starting at $146k single / $230k married. Roth Solo 401(k) lets you contribute the $23,000 employee deferral as Roth at any income level — a major advantage for high-earning freelancers who want post-tax retirement income.
What return rate should I assume?
7% real return (after inflation) matches long-term S&P 500 average. 5% is conservative — accounts for elevated bond allocation or pessimistic forward returns. Don't assume 10%+ — that's optimistic survivorship-biased data. Use 5–7% for plans you must hit; 7–8% for stretch goals.
Does the 4% rule actually work?
The Trinity Study (1998) and subsequent analyses show 4% withdrawal of starting balance, adjusted annually for inflation, has near-100% success over 30-year retirements historically. Recent research suggests 3.5% may be safer for early retirees with 40+ year horizons, or those facing elevated valuations / lower forward returns. Use 4% as planning baseline; adjust down for safety margin.
Conseil Pro
Set up automatic monthly transfers to your retirement account rather than waiting for year-end — eliminates the irregular-income hurdle and captures dollar-cost averaging benefits. Treat the contribution like a fixed bill paid before discretionary spending; freelancers who automate retirement savings beat those who manually contribute by 40–60% over a career.