Advanced Retirement Calculator

Model your entire retirement portfolio with precision. This advanced retirement calculator projects your financial future by tracking multiple account types—Traditional 401(k)/IRA, Roth IRA, and taxable brokerage accounts—separately. It simulates growth before retirement and models a tax-efficient withdrawal strategy after retirement, automatically accounting for Required Minimum Distributions (RMDs), Social Security benefits, and employer matching contributions.

This tool is for anyone who has saved in more than one type of account and wants a clearer picture of their tax liability in retirement. It's perfect for comparing the long-term impact of contributing to a Roth vs. a Traditional IRA, understanding how RMDs will affect your plan, or stress-testing your strategy with different tax and return assumptions. If you need a simpler starting point, try the main retirement calculator.

The calculator provides a comprehensive retirement score, projects your total savings at retirement broken down by account type, and estimates how long your money will last. You will see detailed charts showing your portfolio's growth and drawdown over time, your account composition at retirement, and a list of personalized insights to help you optimize your plan.

Begin by entering your current savings in the Current Account Balances section. It is important to separate your savings into the correct buckets: pre-tax (Traditional 401(k)/IRA), tax-free (Roth IRA), and taxable (Brokerage). This allows the calculator to model taxes correctly.

Next, input your savings habits under Monthly Contributions. Enter the amount you save each month to your 401(k), Roth IRA, and any taxable investment accounts. The calculator uses your 401(k) contribution to determine your employer match. Not sure how much to contribute? The 401(k) contribution calculator can help.

In the Income & Social Security section, add your current annual salary and its expected growth rate. Then, provide an estimate for your monthly Social Security benefit and the age you plan to claim it. You can get a personalized estimate from the Social Security Administration's website or use our Social Security calculator to get a projection.

Define your Retirement Timeline by entering your current age, planned retirement age, and life expectancy. A longer life expectancy provides a more conservative plan. Also, enter your desired annual income in retirement, stated in today's dollars; the calculator will adjust it for inflation.

For a more customized projection, open the Advanced Settings. Here you can adjust assumptions for investment returns before and after retirement, the long-term inflation rate, your expected tax rates in retirement (both ordinary income and capital gains), and the specifics of your employer's 401(k) match. These inputs allow you to test how your plan holds up under different economic conditions.

Current Account Balances

This section captures your starting point. Separating your balances is crucial for tax planning.

• Traditional 401(k) / IRA: Pre-tax accounts. Contributions may be tax-deductible, and money grows tax-deferred. Withdrawals in retirement are taxed as ordinary income.
• Roth IRA: Post-tax accounts. You contribute with money that's already been taxed. The money grows tax-free, and qualified withdrawals in retirement are also tax-free. Use the Roth IRA calculator for a deeper dive.
• Taxable Brokerage: A standard investment account with no special tax advantages. You invest with after-tax money, and you pay capital gains taxes on any profits when you sell investments.
• Other Savings: Includes cash, CDs, or other liquid assets you plan to use for retirement.

Monthly Contributions

Your ongoing savings are a primary driver of your future success.

• 401(k) Contribution: Your monthly contribution to a workplace plan like a 401(k), 403(b), or TSP. For 2026, the limit is $23,500 for those under 50.
• Roth IRA Contribution: Your monthly contribution to a Roth IRA. The 2026 contribution limit is $7,000 for those under 50.
• Taxable Investing: Any additional amount you invest monthly in a non-retirement brokerage account.

Income & Social Security

These inputs model your earnings potential and guaranteed income floor.

• Annual Salary & Salary Growth: Your current salary is used to calculate the employer match. The growth rate projects your future earnings and matching potential.
• Social Security (Monthly) & SS Start Age: Your estimated monthly benefit and the age you claim it. Claiming at 62 results in a reduced benefit, while waiting until 70 maximizes it. See when to take Social Security to understand the trade-offs.

Retirement Timeline

These three inputs define the length of your accumulation and distribution phases.

• Current Age, Retirement Age, Life Expectancy: These determine how many years you have to save and how many years your money needs to last.
• Desired Annual Income: Your spending goal in retirement, expressed in today's dollars. The calculator adjusts this figure for inflation over time. For help estimating this, see what is a good retirement income.

Return, Tax & Match Rates (Advanced)

Fine-tuning these assumptions makes your projection more realistic.

• Pre- & Post-Retirement Return: Expected average annual investment return. It's common to use a lower, more conservative return rate for the post-retirement years.
• Inflation Rate: The long-term average rate at which the cost of living increases. This is used to adjust your future expenses.
• Effective & Capital Gains Tax Rate: Your estimated tax rates in retirement. The effective rate applies to ordinary income (like 401(k) withdrawals), while the capital gains rate applies to profits from your taxable account.
• Employer Match Rate & Limit: How your employer's 401(k) match works. For example, a 50% match rate up to a 6% limit means your employer contributes $0.50 for every dollar you contribute, on up to 6% of your salary.

This calculator runs a detailed, year-by-year simulation of your financial life from your current age to your life expectancy. It operates in two distinct phases.

1. Accumulation Phase (Before Retirement) During your working years, the calculator projects the growth of each of your accounts separately. Each year, it does the following:

• Calculates investment growth based on your Pre-Retirement Return Rate.
• Adds your monthly contributions to the appropriate accounts.
• Calculates your employer match based on your salary and contribution rate and adds it to your traditional 401(k).
• Increases your salary by the Salary Growth rate for the next year's calculation.

2. Distribution Phase (After Retirement) Once you reach your specified retirement age, the calculator switches to modeling withdrawals. Each year in retirement, it:

• Calculates investment growth based on your Post-Retirement Return Rate.
• Determines your inflation-adjusted spending need based on your Desired Annual Income.
• Subtracts any Social Security income you receive for that year.
• Calculates any Required Minimum Distributions (RMDs) you must take from your traditional 401(k)/IRA starting at age 73.
• Covers any remaining spending gap by withdrawing money from your accounts in a tax-efficient order:
  1. Taxable Brokerage: To take advantage of lower long-term capital gains rates.
  2. Traditional 401(k)/IRA: To satisfy RMDs and then cover further needs.
  3. Roth IRA: Used last to allow tax-free assets to grow for as long as possible.
• This process repeats each year until you reach your life expectancy or your portfolio balance reaches zero. To learn more about this approach, see our guide on the best order to withdraw from retirement accounts.

The projection is built year by year. Here are the core formulas used in the simulation.

Employer Match Calculation

max_matchable_contribution = annual_salary * match_limit_percent
actual_matchable_contribution = min(annual_401k_contribution, max_matchable_contribution)
employer_match = actual_matchable_contribution * employer_match_rate

Pre-Retirement Annual Growth (per account)

investment_growth = current_balance * pre_retirement_return_rate
ending_balance = current_balance + investment_growth + annual_contributions

Retirement Spending Need

inflation_multiplier = (1 + inflation_rate) ^ years_since_today
inflation_adjusted_spending = desired_annual_income * inflation_multiplier

Required Minimum Distribution (RMD)

This applies to traditional account balances for ages 73 and older.

rmd_factor = lookup_from_irs_uniform_lifetime_table(age)
required_minimum_distribution = previous_year_traditional_balance / rmd_factor

Annual Withdrawal Calculation

This happens sequentially each year in retirement.

1. income_gap = inflation_adjusted_spending - social_security_income
2. take_rmd = min(required_minimum_distribution, traditional_balance)
3. income_from_rmd = take_rmd * (1 - effective_tax_rate)
4. remaining_gap = income_gap - income_from_rmd

5. if remaining_gap > 0:
   taxable_withdrawal_needed = remaining_gap / (1 - capital_gains_tax_rate)
   withdraw_from_taxable = min(taxable_withdrawal_needed, taxable_balance)
   income_from_taxable = withdraw_from_taxable * (1 - capital_gains_tax_rate)
   remaining_gap = remaining_gap - income_from_taxable

6. if remaining_gap > 0:
   traditional_withdrawal_needed = remaining_gap / (1 - effective_tax_rate)
   withdraw_from_traditional = min(traditional_withdrawal_needed, traditional_balance)
   income_from_traditional = withdraw_from_traditional * (1 - effective_tax_rate)
   remaining_gap = remaining_gap - income_from_traditional

7. if remaining_gap > 0:
   withdraw_from_roth = min(remaining_gap, roth_balance)

One of the most powerful features of this calculator is its ability to model tax diversification. This is the strategy of saving in different types of accounts to control your tax bill in retirement. There are three main "tax buckets":

1. Tax-Deferred (Pre-Tax): Accounts like a Traditional 401(k) or IRA. You get a tax break on contributions today, but all withdrawals are taxed as ordinary income in retirement.
2. Tax-Free (Post-Tax): Accounts like a Roth IRA or Roth 401(k). You contribute after-tax dollars, but your qualified withdrawals are completely tax-free.
3. Taxable: A standard brokerage account. You contribute after-tax dollars and pay capital gains taxes on investment growth when you sell.

Having money in all three buckets gives you tremendous flexibility. In a year where you need more income, you can pull from your Roth IRA without increasing your taxable income. This could help you stay in a lower tax bracket or avoid higher Medicare premiums. In a low-income year, you might pull more from your Traditional IRA or even perform a Roth conversion. A taxable account is great for bridging the gap to retirement before age 59.5.

This calculator shows you exactly how this plays out by projecting the balance of each bucket over time and using a tax-smart withdrawal sequence. By adjusting your monthly contributions, you can see how focusing more on Roth or taxable savings changes your long-term outcome. For a direct comparison, read our guide on Roth vs. Traditional IRAs.

How you take money out of your accounts in retirement can be just as important as how you put it in. A smart withdrawal strategy can make your money last years longer by minimizing taxes.

The calculator defaults to a common, tax-efficient withdrawal sequence:

1. Satisfy RMDs: Take any Required Minimum Distributions from your tax-deferred accounts first, as this is mandated by law starting at age 73.
2. Tap Taxable Accounts: Next, sell assets from your brokerage account. Long-term capital gains are often taxed at a lower rate than ordinary income.
3. Withdraw from Tax-Deferred Accounts: Pull from your Traditional 401(k)s and IRAs. These withdrawals are taxed as income.
4. Preserve Tax-Free Accounts: Use your Roth IRA last. This allows its balance to continue growing 100% tax-free for as long as possible, serving as a powerful reserve for large expenses or late-in-life needs.

This "taxable first" approach helps keep your taxable income lower in the early years of retirement. However, it's not the only method. Some retirees use a "pro-rata" approach, pulling a bit from each account type each year to smooth out their tax liability. Others use a bucket strategy to align assets with short-term and long-term needs. Use this calculator to see the impact of the default strategy, and consult our guide on the best order to withdraw from retirement accounts for more ideas.

Required Minimum Distributions (RMDs) are mandatory annual withdrawals you must take from most retirement accounts (except Roth IRAs) starting at age 73. The amount is calculated by the IRS based on your account balance and life expectancy. Failing to take your full RMD results in a stiff penalty.

RMDs are significant because they are fully taxable as ordinary income. A large RMD can push you into a higher tax bracket and potentially increase your Medicare premiums. This is a common challenge for diligent savers who accumulate large balances in tax-deferred accounts like 401(k)s.

This calculator automatically projects your RMDs once you turn 73. You can see their impact in the year-by-year data. If the projection shows your RMDs will be substantial, you have time to plan. Strategies to manage future RMDs include:

• Roth Conversions: Converting portions of a Traditional IRA to a Roth IRA during your lower-income years (like early retirement before Social Security starts) can reduce the future balance subject to RMDs. Use the Roth IRA conversion calculator to model this.
• Qualified Charitable Distributions (QCDs): If you are age 70.5 or older, you can donate up to $105,000 directly from your IRA to a charity (this limit is now indexed to inflation under SECURE 2.0). The donation counts toward your RMD but isn't included in your taxable income.
• Still Working?: If you are still working past age 73 and don't own more than 5% of the company, you can delay RMDs from your current employer's 401(k) until you retire.

Use the main RMD calculator for a quick calculation or our guide to RMD strategies for more information.

• Advanced Retirement Score: A summary of your plan's health, based on whether your money lasts through life expectancy, your income replacement level, and your account diversification.
• Total at Retirement: The projected total value of all your accounts on your retirement date. The donut chart shows the composition of this total.
• Money Lasts Until: The age at which your portfolio is projected to run out. Ideally, this should be at or beyond your life expectancy.
• Employer Match Total: The cumulative "free money" you're projected to receive from your employer. This highlights the power of contributing enough to get the full match.
• Income Replacement: This shows how your projected first-year retirement income (from a 4% withdrawal plus Social Security) compares to your desired income goal.
• Account Balances Over Time Chart: This stacked area chart is the core of the projection. It shows how each of your accounts is expected to grow and then be drawn down throughout your life.
• Account Composition at Retirement Chart: This donut chart shows the mix of your savings (Traditional, Roth, Taxable) when you retire. A diversified mix often indicates better tax flexibility.
• Insights Panel: This provides dynamic, actionable feedback based on your specific inputs and results, highlighting strengths and potential weaknesses in your plan.

If your score is lower than you'd like, focus on the variables you can control:

• Increase Contributions: Even a small increase in your monthly savings can have a huge impact over time. Prioritize accounts in this order: 1) 401(k) up to the full employer match, 2) Roth IRA up to the limit, 3) Max out 401(k), 4) Invest in a taxable account.
• Optimize Your Employer Match: If you aren't contributing enough to get the full match, you're leaving free money on the table. This is often the highest-return investment you can make.
• Re-evaluate Your Retirement Age: Working just a few years longer can dramatically improve your outlook. It gives your investments more time to grow and shortens the period you'll be withdrawing money. Use the retirement age calculator to see the effect.
• Review Your Social Security Strategy: Delaying Social Security from age 62 to 70 can increase your guaranteed, inflation-adjusted monthly income by over 70%. The Social Security break-even calculator can help you decide.
• Consider a Roth Strategy: If your projection shows a large future RMD burden, modeling a Roth conversion might be a smart move to pay some taxes now at a potentially lower rate.

1. Ignoring Tax Diversification: Lumping all savings into one pre-tax 401(k) can create a "tax time bomb" in retirement due to RMDs.
2. Forgetting RMDs: Not planning for mandatory withdrawals can lead to an unexpected tax shock in your 70s and 80s.
3. Underestimating Retirement Taxes: Assuming you'll be in a much lower tax bracket is not always true, especially after RMDs begin. This calculator helps by letting you set a specific tax rate.
4. Using a Single "Pot" Mentality: A simple calculator that treats all money the same misses the crucial tax differences between accounts.
5. Neglecting Capital Gains: Forgetting that withdrawals from a taxable brokerage account are subject to capital gains tax can throw off income projections.