Mavilian Financial Group
Retirement Planning Tool

Retirement Income
Gap Calculator

See what your retirement paycheck looks like — and whether it covers what you need. Then stress-test it with real-world scenarios.

For educational purposes only. This calculator provides simplified estimates of retirement income and should not be used as the sole basis for retirement planning decisions. Actual results depend on investment returns, inflation, tax rates, healthcare costs, Social Security benefit changes, and many other factors not fully captured here. Portfolio yield rates are not guaranteed and will fluctuate. This tool does not constitute financial, investment, tax, or legal advice. Consult with a qualified financial professional regarding your specific situation.

About You

What You Need in Retirement

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Housing, food, transportation, insurance, entertainment, travel — everything except healthcare (below). This is your spending need only and does not include taxes.
Taxes are separate. Different accounts have different tax treatments. Traditional IRA/401(k) withdrawals are fully taxed as ordinary income. Brokerage withdrawals are only taxed on the gain portion at capital gains rates. Roth withdrawals are tax-free. The projection below tracks which accounts you draw from and calculates the actual tax cost — so you see the gross amount you need to pull, not just the spending.
Add separate healthcare estimate
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Medicare premiums, supplements, prescriptions, dental, vision. Average retired couple: $500–$800/mo.

Contracted Income Sources

Income you're entitled to by contract or law — Social Security, pensions, annuities. These don't depend on market performance.
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From your statement at ssa.gov
62–70
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Employer pension or similar
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$
Rental income, royalties, etc. — enter only if reliably recurring and not subject to market risk (e.g., stable rental net income, not volatile business earnings).

Savings & Investments

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Pre-tax retirement accounts
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Tax-free accounts
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Income Assumption

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What your savings can generate annually without touching principal. Current short-term rates (money market, T-bills, short-term bonds) are a conservative baseline.
Why yield instead of the “4% rule”? The 4% rule assumes drawing down your principal over 30 years. We start with what your money can generate without touching the principal — a more conservative baseline. If there's a gap, the question becomes: are you comfortable drawing down, or do we find ways to close it? That's a conversation worth having.

Assumptions

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Used to grow spending need each year
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Applied to traditional IRA/401(k) withdrawals
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Applied to gains in brokerage accounts (0%, 15%, or 20% for most)
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Estimated % of brokerage value that is your original investment (not gain)
How taxes are handled in the projection: Not all accounts are taxed the same. The projection draws from accounts in a tax-efficient order — brokerage first (only gains are taxed, at the capital gains rate), then traditional accounts (fully taxed as ordinary income), then Roth (tax-free). This means your actual tax cost depends on which accounts are funding the gap, not a single blended rate.