Retirement Calculator Features
Focused retirement calculators for couples and individuals that answer 'Am I okay?' without the complexity.
Parker AI AssistantNewPro
Ask questions in plain English. Explore "what-if" scenarios conversationally and get explanations of your projections.
Couple retirement calculator
Built for single or couple households with shared expenses and individual retirement accounts.
Scenario Manager
Base case plus up to five what-ifs for retire-early, windfalls, or expense tweaks.
Monte Carlo simulations
1,000+ randomized simulations show your probability of success, not just one guess.
Social Security claimingNew
Compare 81+ claiming combinations for couples with spousal and survivor benefits at breakeven ages 85, 90, and 95.
Tax bracket projectionsNew
See your federal tax picture year-by-year through retirement with Roth conversion modeling.
Expense phase modelingNew
Go-Go, Slow-Go, No-Go phases model realistic spending decline through retirement.
Goal planning & tracking
Set retirement goals and track progress toward achieving them.
Household sharing
Collaborate with your spouse on retirement planning with shared access.
PDF export
Export your retirement plan as a professional PDF to share with advisors.
Built on transparency
See the math. Keep your privacy. Make your own decisions.
Published formulas
Every calculation uses official IRS and SSA formulas. No black boxes.
Complete privacy
No bank connections. No SSN. Just your estimates and an email to save progress.
No credit card
Start free, stay free. Upgrade only if you want advanced scenario modeling.
Educational tool
Explore scenarios and learn. We never give financial advice — that's your advisor's job.
Meet Parker, your AI calculation companion
Explore "what-if" scenarios in plain English. Ask Parker questions like "What if I retire at 62?" or "How do taxes change if I convert to Roth?" and see projected impacts instantly.
- Explore scenarios conversationally
- Get explanations of your projections
- Ask questions about your projections
- Educational tool, not financial advice

Parker
fidser AI Assistant

Hi, I'm Parker
fidser AI Assistant
I can help answer questions about your retirement projections and explore "what if" scenarios together.
AI-generated content for educational purposes only. Not financial advice.
Parker is an AI assistant that helps you explore retirement scenarios. All responses are for educational purposes only and should not be considered financial advice.
Compare Social Security claiming scenarios
Model 81+ claiming combinations for couples. See spousal and survivor benefits, and compare breakeven ages at 85, 90, and 95 to find your path forward.
- 81+ claiming combinations for couples
- Spousal and survivor benefit analysis
- Breakeven comparisons at ages 85, 90, and 95
- Cumulative lifetime benefit projections
Social Security Claiming Comparison
Monthly benefit by claiming age
Social Security estimates are based on the information you provide and current SSA formulas. Actual benefits may vary. This is not financial advice.
Federal Tax Bracket Projection
Estimated effective tax rate by year
Tax projection tools for smarter planning
Model Roth conversion scenarios, compare withdrawal sequencing strategies, and see how Social Security taxation thresholds affect your bottom line.
- Roth conversion scenario modeling
- Withdrawal sequencing comparisons
- Social Security taxation thresholds
- Year-by-year bracket analysis
Tax projections are estimates based on current federal tax law and the information you provide. Tax laws change frequently. Consult a tax professional for personalized advice.
Model realistic retirement spending
Your spending won't stay flat for 30 years. fidser. models the natural decline in spending as you move through retirement phases — from active "Go-Go" years to quieter "No-Go" years.
- Go-Go years (65-75): Full spending on travel & activities
- Slow-Go years (75-85): 85% of initial spending
- No-Go years (85+): 75% as activity decreases
- More realistic than flat spending assumptions
Retirement Spending Phases
Annual spending adjusted for lifestyle changes
Most calculators assume flat spending — but research shows retirees naturally spend less as they age. fidser. models this reality for more accurate projections.
Spending phase percentages are illustrative examples based on retirement research. Your actual spending patterns may vary. This is for educational purposes only.
Model Any Future with Our Free Retirement Calculator
See how decisions impact your retirement instantly with our can I retire calculator.
What-if
Retire early at 60
You are on track to meet your expenses in retirement.
- Net worth
- $1,450,000
- Monthly income
- $6,200
- Years until depletion
- Never
Modifications
- Update retirement age to 60
What-if
Take international holiday
You can afford this dream trip and stay on track.
- Net worth
- $1,435,000
- Monthly income
- $6,200
- Years until depletion
- Never
Modifications
- One-time expense of $15,000 in 2026
Important: fidser. is an educational forecasting tool. Projections are estimates based on the information you provide. This is not financial, tax, or legal advice. Consult a qualified professional for personalized guidance.
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