Retirement Spend-Down Calculator

Estimate how long your retirement portfolio will last and find a sustainable spending level. This calculator projects your savings year by year, showing you at what age your money may run out based on your starting portfolio, annual spending, guaranteed income sources, and investment returns. See how your plan holds up and discover a target spending rate to help you reach your financial goals.

This tool is for anyone in or nearing retirement who needs to turn a nest egg into a reliable income stream. It helps answer the critical question: "How much can I safely spend?" It's a great next step after using a general retirement calculator to estimate your savings needs. To explore different withdrawal philosophies, compare these results with our 4% rule retirement withdrawal calculator.

The calculator provides a "Spend-Down Fit Score" to quickly gauge your plan's viability. You will see a detailed chart projecting your portfolio balance over time, the age at which funds are depleted, and your first-year withdrawal rate. The results also include a target annual spending amount calculated to meet your goals, helping you see if you have a spending surplus or shortfall.

Begin by entering your current financial situation in the "Portfolio & Goal" section. Input your "Starting Portfolio," which is the total amount of retirement savings you plan to draw from. Add your "Legacy Goal," the amount you wish to have remaining at the end of the plan. Then, enter your "Current Age" and the "Target Depletion Age," which is the age you want your money to last through.

Next, move to the "Spending & Income" section. Enter your "Annual Spending Need"—the total amount you plan to spend in your first year of retirement. Below that, input any "Annual Guaranteed Income" you'll receive from sources like Social Security, pensions, or annuities. Our Social Security calculator can help you estimate that benefit. Finally, set your investment assumptions: the "Annual Return Rate" you expect on your portfolio and the "Spending Growth Rate," which is how much your expenses will increase each year, typically due to inflation.

For more detail, open the "Advanced Assumptions" section. Here you can set a separate "Income Growth Rate" for your guaranteed income (like a Social Security COLA), and model a "One-Time Expense" at a specific age for a large purchase like a new car or major home repair. Once all your numbers are in, click "Calculate Spend-Down" to see your personalized projection.

Starting Portfolio

This is the total value of the investment accounts you will use to fund your retirement. Include balances from your 401(k), Traditional IRA, Roth IRA, brokerage accounts, and any other savings earmarked for retirement spending. A larger starting portfolio can support higher withdrawals or last for a longer period.

Legacy Goal

The legacy goal is the amount of money you want to have left at your target depletion age. This could be for your heirs, a charity, or simply as a final financial cushion. A legacy goal of $0 means you plan to spend the entire portfolio. A higher legacy goal will require a lower annual spending rate to achieve.

Current Age & Target Depletion Age

Your current age is the starting point for the projection. The target depletion age is how long you need the money to last. Many financial planners recommend planning through age 90, 95, or even 100 to manage longevity risk—the risk of outliving your money. A longer retirement timeframe puts more stress on a portfolio.

Annual Spending Need

This is your total estimated living expenses for the first year of retirement. It should include everything: housing, healthcare, food, travel, taxes, and entertainment. If you don't have a detailed budget, you can use a retirement expense calculator to build one. This number is the primary driver of how quickly your portfolio is depleted.

Annual Guaranteed Income

This field is for reliable, recurring income that is not dependent on your investment portfolio. The most common sources are Social Security, defined-benefit pensions, and income annuities. This income acts as a financial bedrock, reducing the amount you need to withdraw from your savings each year. A higher guaranteed income significantly improves the sustainability of your spend-down plan.

Annual Return Rate

This is the average annual investment return you expect to earn on your portfolio during retirement. Because you are withdrawing money, many retirees adopt a more conservative asset allocation, which may lead to lower returns than during the accumulation phase. This is a critical assumption; a lower expected return will result in a faster portfolio depletion, all else being equal.

Spending Growth Rate

This is the rate at which you expect your annual spending to increase. For most retirees, this rate is tied to inflation. If you expect inflation to be 2.5%, your spending will need to increase by 2.5% each year to maintain the same purchasing power. You can learn more about how inflation affects retirement savings.

Advanced: Income Growth, One-Time Expense

The income growth rate (often called a Cost-of-Living-Adjustment or COLA) applies to your guaranteed income. For example, Social Security benefits are typically adjusted for inflation each year. The one-time expense fields allow you to model a large, planned purchase, which creates a temporary spike in your withdrawal needs for that specific year.

This calculator runs a year-by-year simulation to project your portfolio's future. It does not use a single, simplified formula but instead models your finances from your current age through the end of the projection.

For each year, the calculator performs these steps:

1. Calculates Total Spending: It starts with your annual spending need and increases it by the "Spending Growth Rate" each year. If a one-time expense is scheduled for that year, it's added to the total.
2. Calculates Guaranteed Income: It takes your annual guaranteed income and increases it by the "Income Growth Rate" each year.
3. Determines Portfolio Withdrawal: It subtracts your guaranteed income from your total spending. The remaining amount is the withdrawal needed from your portfolio. If income exceeds spending, the withdrawal is zero.
4. Updates Portfolio Balance: The required withdrawal is subtracted from your portfolio balance.
5. Applies Investment Growth: The remaining balance is multiplied by the "Annual Return Rate" to calculate investment gains for the year. This amount is added back to the portfolio.
6. Repeats: This process repeats for each year until the portfolio balance reaches zero or the 60-year simulation limit is hit.

The "Target Annual Spending" is found using a binary search algorithm. The calculator iteratively tests different initial spending levels to find the maximum amount you could spend while still having your portfolio last until your target depletion age with your legacy goal intact. The "Spend-Down Fit Score" is based on how many years your plan lasts compared to your target timeframe.

The calculator uses an iterative, year-by-year projection. The core logic for any given year can be simplified into these formulas.

Spending and Income for a Given Year

Current Year Spending = Last Year Spending x (1 + Spending Growth Rate) + One-Time Expense for This Year

Current Year Income = Last Year Income x (1 + Income Growth Rate)

Portfolio Withdrawal Calculation

The amount you need to withdraw from your portfolio is the gap between your spending and your guaranteed income.

Portfolio Withdrawal = max(0, Current Year Spending - Current Year Income)

Year-End Balance Projection

The balance at the end of the year is the starting balance, minus the withdrawal, plus investment growth on the remaining amount.

Balance After Withdrawal = Starting Balance - Portfolio Withdrawal

Investment Growth = Balance After Withdrawal x Annual Return Rate

Ending Balance = Balance After Withdrawal + Investment Growth

Key Result Metrics

First-Year Withdrawal Rate = (First Year Portfolio Withdrawal / Starting Portfolio) x 100

Depletion Age = Age when Ending Balance first reaches zero

A safe withdrawal rate is the percentage of your savings you can withdraw each year without a high risk of running out of money. For decades, the most famous guideline has been the 4% rule, which suggests withdrawing 4% of your initial portfolio in your first year of retirement and then adjusting that dollar amount for inflation each year thereafter.

The 4% rule was based on historical data for a 30-year retirement. However, its effectiveness depends on several factors:

• Retirement Duration: A retirement longer than 30 years may require a lower withdrawal rate.
• Asset Allocation: The rule assumes a balanced portfolio, typically 60% stocks and 40% bonds.
• Market Performance: The "sequence of returns risk" is a major factor. Poor market returns early in retirement can permanently damage a portfolio's longevity, even if long-term average returns are good.

Today, many financial planners suggest that a starting withdrawal rate between 3% and 4.5% may be more appropriate, depending on market valuations and an individual's risk tolerance. This spend-down calculator helps you test different scenarios beyond a single rule of thumb. You can input your spending, which implies a withdrawal rate, and see how long your money is projected to last. For a direct comparison, use the 4% rule withdrawal calculator.

A successful spend-down strategy provides reliable income while managing risks like inflation, market volatility, and outliving your savings. There are several approaches beyond simply withdrawing a fixed percentage.

The Bucket Strategy: This method involves dividing your assets into three "buckets" based on time horizon.

• Bucket 1 (1-3 years): Holds cash and cash equivalents for immediate living expenses. This insulates you from selling investments during a market downturn.
• Bucket 2 (3-7 years): Contains bonds and other stable investments to refill the cash bucket.
• Bucket 3 (10+ years): Holds stocks and other growth assets for long-term appreciation. You can model this concept with our bucket strategy calculator.

Guardrail Strategy (Dynamic Withdrawals): Instead of a fixed withdrawal, your spending adjusts based on portfolio performance. For example, you might increase spending by 10% if your portfolio returns are strong, but cut spending by 10% if the market drops significantly. This flexibility can greatly improve a plan's success rate.

Annuitizing a Portion of Savings: Purchasing an annuity can create a personal pension, providing guaranteed income for life. This reduces the pressure on your investment portfolio to cover essential expenses. Use an annuity calculator to see how much income a lump sum could generate.

Your results provide a comprehensive look at your spend-down plan's viability.

Spend-Down Fit Score: This gives you an at-a-glance assessment. A high score (85-100) suggests your plan is on track to meet your target age. A lower score indicates that your savings may be depleted too early and that adjustments are needed.

Projected Depletion Age: This is the age the calculator projects your portfolio will run out. The primary goal is for this age to be at or beyond your "Target Depletion Age."

Ending Balance & Total Withdrawn: The ending balance shows what's left at the end of the simulation, while total withdrawn shows the cumulative amount taken from your portfolio over the entire period.

First-Year Withdrawal Rate: This key metric shows (Annual Spending Need - Annual Guaranteed Income) / Starting Portfolio. Rates above 5% are often considered aggressive and may carry higher risk.

Spending Gap: This compares your planned annual spending to the calculator's "Target Annual Spending." A positive number means you may have room to spend more, while a negative number suggests your spending is higher than the sustainable pace calculated for your goals.

Charts: The "Portfolio Spend-Down Projection" chart is the most important visual. It shows the trajectory of your portfolio balance over time. The "Spending Scenarios" chart demonstrates how small changes in your spending can dramatically affect your final portfolio balance.

If the calculator shows your money running out too soon, you have several levers you can pull to improve the outcome.

1. Reduce Annual Spending: This is often the most impactful change. Even a small reduction in your annual withdrawal compounds into significant savings over a multi-decade retirement. Use our retirement budget calculator to find areas to trim.
2. Increase Guaranteed Income: Delaying Social Security is a powerful way to increase your lifetime guaranteed income. See how different claiming ages affect your benefit with the best age to take Social Security calculator.
3. Work Part-Time: Earning even a modest income in early retirement can dramatically reduce the withdrawals needed from your portfolio, allowing it more time to grow.
4. Adjust Your Legacy Goal: Lowering the amount you plan to leave to heirs will free up more funds for your own spending needs during your lifetime.
5. Re-evaluate Your Target Age: If your plan falls short by only a few years, a slightly more optimistic (but still reasonable) life expectancy could make the numbers work. Be cautious with this approach.

1. Forgetting Inflation: A $60,000 annual budget today will not have the same purchasing power in 20 years. Always use a reasonable growth rate for your spending needs.
2. Ignoring One-Time Expenses: Retirement isn't always a smooth ride. Failing to plan for large costs like a new roof, a replacement vehicle, or unexpected medical bills can derail a budget.
3. Underestimating Longevity: Planning to live to age 85 might seem reasonable, but many people live well into their 90s. Running out of money late in life is a devastating risk.
4. Ignoring Taxes: This calculator operates on a pre-tax or post-tax basis, depending on your inputs. Remember that withdrawals from traditional 401(k)s and IRAs are typically taxable income. You must account for taxes in your "Annual Spending Need." Learn more about tax-efficient withdrawal strategies.
5. Being Too Optimistic with Returns: Using a high expected return rate can make any plan look good on paper. A more conservative assumption provides a greater margin of safety.