Calculators

Proceeds Depletion

How long will that lump sum actually last?

Plan your withdrawal strategy.

Receiving a large insurance payout or inheritance can be overwhelming. This tool helps you understand how long the money will last based on your spending habits, investment returns, and inflation.

Key Factors:

Initial Lump Sum
Monthly Spending Needs
Investment Return
Inflation Impact

Quick Result

Money Will Last For

12.1 Years

Until depletion based on current spending.

Monthly Draw$4,000.00

Real Return (Inf. Adj)2.5%

Based on

• Principal: $500,000.00
• Draw: $4,000.00
• Inflation: 2.5%

Withdrawal Plan

Lump Sum Amount

Monthly Withdrawal Need

Annual Investment Return (%)

0%5%10%

Annual Inflation (%)

0%2.5%10%

This tool is for illustrative purposes only and does not constitute professional insurance or financial advice. Estimates are based on general assumptions and may not reflect actual policy premiums or coverage limits offered by providers. Always consult with a licensed insurance agent for accurate quotes and coverage advice.

Methodology and Trust

Last updated: February 2026Reviewed by: Financial Strategy Team

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How Long Will the Money Last? Managing a Lump Sum

Key Insights & Concepts

Receiving a large lump sum—whether from a life insurance payout, an inheritance, or a retirement nest egg—creates an illusion of infinite wealth. $500,000 looks like a fortune. But when you start withdrawing $4,000 a month to pay bills, the math changes rapidly. This calculator helps you face the reality of "burn rate," inflation, and investment returns.

Part 1: The Inflation Eraser

The biggest mistake people make is planning in today's dollars. If you need $3,000/month today, you will need roughly $5,400/month in 20 years just to buy the same groceries and gas (assuming 3% inflation).

Fixed Withdrawal: If you take out exactly $3,000/month forever, your lifestyle will slowly collapse as prices rise.
Inflation-Adjusted: If you increase your withdrawal annually to match inflation, you drain the principal much faster. This calculator assumes an inflation-adjusted withdrawal to preserve your standard of living.

Part 2: The "Sequence of Returns" Risk

Calculators assume a steady return (e.g., 6% every year). The real world is volatile.

The Danger Zone

If the market crashes 20% in the first two years of your withdrawals, your portfolio might never recover. You are selling assets while they are down to pay your bills, locking in losses permanently.

Example: A $1M portfolio dropping to $800k while you withdraw $40k means you are now withdrawing 5% of the remaining balance, putting you in a "death spiral."

Part 3: Safe Withdrawal Rates (The 4% Rule)

Financial planners use the "4% Rule" as a guideline.

The Rule: You can withdraw 4% of your initial portfolio value in Year 1, and adjust for inflation thereafter, with a 95% chance of the money lasting 30 years.
The Application: On $500,000, the safe withdrawal is $20,000/year ($1,666/mo).
The Reality Check: If this calculator shows your money running out in 12 years, you are withdrawing way above the safe rate. You need to either cut expenses or accept that the money is temporary.

Part 4: Managing a Life Insurance Payout

When a spouse dies, the surviving partner often receives the death benefit tax-free. How you manage this is critical.

Pay Off High-Interest Debt: Eliminating credit card debt (20% interest) is a guaranteed 20% return on your money. This reduces your monthly "burn rate."
The "Sleep Well" Fund: Keep 6-12 months of expenses in cash. Do not invest everything immediately.
Income Generation: Consider using part of the proceeds to buy an Immediate Annuity. This turns a lump sum into a guaranteed monthly paycheck that can never run out, replicating the lost spouse's income.

Part 5: Investment Allocation

To make money last 30+ years, you generally need some exposure to stocks (equities) to beat inflation.

100% Cash/Bonds: Safe from crashes, but guaranteed to lose to inflation. Your purchasing power will erode.
100% Stocks: High growth potential, but high crash risk.
The 60/40 Split: The classic retirement portfolio (60% stocks, 40% bonds) is designed to balance growth and stability.

Frequently Asked Questions

Yes. If you invest the proceeds (e.g., in a brokerage account), the dividends and interest you earn annually are taxable. Only the initial life insurance payout itself is tax-free.

Historically, 4% is considered safe for a 30-year retirement. However, in low-interest-rate environments or for longer periods (40+ years), many experts recommend a more conservative 3.0% or 3.5%.

It's emotional vs. mathematical. Mathematically, if your mortgage rate is 3%, you shouldn't pay it off if you can earn 5% investing. Emotionally, being debt-free reduces monthly expenses drastically, making the remaining money last longer.

It's a shortcut to estimate how long it takes money to double. Divide 72 by your interest rate. At 6%, money doubles in 12 years (72 / 6 = 12). This helps visualize growth vs. depletion.

This calculator adjusts your withdrawal annually for inflation. If inflation is 3%, your withdrawal increases by 3% next year. Without this, your standard of living would drop by half every ~24 years.

You can, but you likely won't keep up with inflation. High-yield savings accounts fluctuate. If rates drop to 1% and inflation is 3%, you are losing purchasing power daily.

It is the planned depletion of assets. Some people want to die with zero ('Die With Zero'). Others want to leave a legacy. Your goal determines your withdrawal rate.

This calculator only looks at your portfolio. Social Security acts as a 'floor' for your income. You should deplete your portfolio to bridge the gap between Social Security and your expenses.

If you earn 0% interest and have $500k, withdrawing $25k/year lasts exactly 20 years. Interest is the engine that extends the timeline.

For amounts over $250,000, usually yes. Managing the tax consequences, asset allocation, and withdrawal strategy is complex. One mistake (panic selling in a crash) can cost more than lifetime advisor fees.

Part 1: The Inflation Eraser

Fixed Withdrawal: If you take out exactly $3,000/month forever, your lifestyle will slowly collapse as prices rise.

Inflation-Adjusted: If you increase your withdrawal annually to match inflation, you drain the principal much faster. This calculator assumes an inflation-adjusted withdrawal to preserve your standard of living.

Part 2: The "Sequence of Returns" Risk

Calculators assume a steady return (e.g., 6% every year). The real world is volatile.

The Danger Zone

Part 3: Safe Withdrawal Rates (The 4% Rule)

Financial planners use the "4% Rule" as a guideline.

The Rule: You can withdraw 4% of your initial portfolio value in Year 1, and adjust for inflation thereafter, with a 95% chance of the money lasting 30 years.

The Application: On $500,000, the safe withdrawal is $20,000/year ($1,666/mo).

The Reality Check: If this calculator shows your money running out in 12 years, you are withdrawing way above the safe rate. You need to either cut expenses or accept that the money is temporary.

Part 4: Managing a Life Insurance Payout

When a spouse dies, the surviving partner often receives the death benefit tax-free. How you manage this is critical.

Pay Off High-Interest Debt: Eliminating credit card debt (20% interest) is a guaranteed 20% return on your money. This reduces your monthly "burn rate."

The "Sleep Well" Fund: Keep 6-12 months of expenses in cash. Do not invest everything immediately.

Income Generation: Consider using part of the proceeds to buy an Immediate Annuity. This turns a lump sum into a guaranteed monthly paycheck that can never run out, replicating the lost spouse's income.

Part 5: Investment Allocation

To make money last 30+ years, you generally need some exposure to stocks (equities) to beat inflation.

100% Cash/Bonds: Safe from crashes, but guaranteed to lose to inflation. Your purchasing power will erode.

100% Stocks: High growth potential, but high crash risk.

The 60/40 Split: The classic retirement portfolio (60% stocks, 40% bonds) is designed to balance growth and stability.