Detailed accounting of your portfolio longevity against desired spending and fixed income
sources.
Federal tax estimates use 2026 IRS brackets and standard deduction. State tax estimates
are based on simplified flat effective rates by state and are approximations only —
actual liability will vary based on your specific filing status, deductions, and
state-specific rules.
Show projection assuming Social Security reduction
Forecast Assuming Social Security Benefits Are Not Reduced in 2033
Social Security Trust Fund: What the Government Has Reported
According to the Annual Report of the Board of Trustees of the Federal Old-Age and Survivors Insurance (OASI) Trust Fund, the program's financial reserves are projected to become depleted in 2033. Under current law, Social Security is a pay-as-you-go system; if the trust fund reserves are exhausted, the program cannot pay out more in benefits than it collects through ongoing payroll taxes. The Social Security Administration estimates that upon depletion, continuing tax revenues will be sufficient to pay approximately 77% of the scheduled benefits, resulting in an automatic, across-the-board reduction of roughly 23% for all beneficiaries.
It is important to recognize that this represents a legislative possibility based on current statutes, rather than a certainty, as Congress has historical precedent for intervening to restore solvency before depletion occurs. Use the Yes/No toggle on this page to model the potential impact on your personal financial plan if Social Security benefits are reduced.
Source: Social Security Administration, Annual Report of the Board of Trustees of the Federal OASI and DI Trust Funds. The 2033 depletion date and 77% pay-out figure reflect the most recent Trustees' Report projections.
Growth Rate: This is how much your savings grow each year. Pick an average number for all your accounts combined.
Inflation: This accounts for prices going up over time. Your monthly spending goal grows at this rate each year in the ledger below.
Note on Social Security: SS benefits grow at 2.5%/yr (the federal COLA), regardless of the inflation rate you set above. If your inflation assumption is higher than 2.5%, your spending will outpace your SS benefit over time — your portfolio must cover the growing gap. You can see this play out month-by-month in the Social Security column of the ledger below.
Understanding Your Retirement Plan
1. Growth of Your Money (Rate of Return)
Think of this like the "interest" your money earns. Right now, this model applies the same growth rate to all of your accounts (like your 401k, IRA, and savings).
Keep in mind: Money in a bank account usually grows much slower than money invested in the stock market.
Be Realistic: Don't just pick a high number! It is important to pick a rate you think is actually possible over the next 30 years.
Inflation is the reason a candy bar costs more today than it did when your parents were kids.
As you slide the Inflation bar higher: You will notice that the "Monthly Funds Required" goes up every year.
How it affects your savings: Because things become more expensive, the model has to take more money out of your asset accounts to make sure you can still afford your same lifestyle. If you set inflation too high, you might see your savings disappear faster!
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