Social Security is the foundation of most retirement plans, yet people routinely leave it out of their math — and then overestimate how much they need to save. This tool puts it where it belongs: as guaranteed monthly income that offsets your spending, so your savings only have to fund the rest.
It isn’t a benefit estimator (that needs your full earnings history from ssa.gov). Instead, enter your estimated monthly benefit as “other monthly income,” and see exactly how much lighter the load on your own savings becomes.
How Social Security changes the math
Every dollar of Social Security is a dollar your portfolio doesn’t have to produce. If you want to spend $55,000 a year and Social Security provides $24,000, your savings only need to cover the remaining $31,000 — and at a 4% withdrawal rate that’s roughly a $775,000 nest egg instead of nearly $1.4 million. Guaranteed income does enormous work.
Because the benefit is inflation-adjusted and lasts for life, it also reduces your exposure to market downturns and longevity risk. The more of your spending it covers, the more resilient your plan.
When should you claim?
You can claim as early as 62, but your monthly check is permanently reduced; wait until your full retirement age (66–67 for most people today) for the full amount, or delay to 70 for roughly 8% more per year you wait. For many, delaying buys the cheapest inflation-protected lifetime income available.
The right age depends on your health, other savings, and whether you need the income sooner. Try raising the retirement age and the “other monthly income” above to see how a larger, later benefit reshapes the verdict.
Getting your real number
For an accurate benefit, create an account at ssa.gov and read your estimate at different claiming ages — it’s based on your actual earnings record. The U.S. average retired-worker benefit is around $1,900 a month, but yours could be meaningfully higher or lower.
Once you have it, plug it in here to see the whole picture: how much of your spending it covers, and the exact savings you still need to close any gap.
Frequently asked questions
How much Social Security will I get?
It depends on your earnings history and the age you claim. The average retired-worker benefit is around $1,900 a month, but the most accurate figure is your personalized estimate at ssa.gov. Enter it above to see how it fits your plan.
Does Social Security reduce how much I need to save?
Significantly. It offsets your spending directly, so your savings only have to cover what’s left. A $24,000-a-year benefit can cut the nest egg you need by hundreds of thousands of dollars.
When should I claim Social Security?
Claiming at 62 reduces your benefit permanently; waiting to full retirement age gives the full amount, and delaying to 70 adds roughly 8% per year. Delaying is often the best-value lifetime income if you can bridge the gap from savings.
Is this an official Social Security estimate?
No — for your exact benefit, use ssa.gov, which has your earnings record. This calculator shows how whatever benefit you enter changes your overall retirement readiness.