Social Security Optimizer Tools: A Side-by-Side at Age 67

What "optimal" claim age means

The Social Security claim age decision is one of the most consequential financial choices most retirees make. Each year of delay between 62 and 70 increases the eventual benefit by roughly 6.5%–8%. The accumulated benefit difference between claiming at 62 and 70 is, for most workers, $400,000–$700,000 in present-value terms.

The "optimal" claim age depends on:

• Life expectancy (or estimated mortality)
• Expected real return on portfolio assets
• Spousal benefit dynamics
• Tax treatment of benefits
• Cash flow needs in early retirement

Different tools weight these inputs differently and produce different recommendations.

The household

A married couple, both 62, in good health with no major health concerns. Higher earner (PIA $3,200/month at FRA) and lower earner (PIA $1,400/month at FRA). Expected to live to standard actuarial averages (87 for the lower earner, 84 for the higher earner). Currently retired with $1.4M in retirement assets, drawing approximately $90,000/year.

We ran this household through five tools.

The recommendations

Tool	Higher Earner	Lower Earner	Total NPV
OpenSocialSecurity.com	70	67	$1,022,000
MaxiFi	70	67	$1,019,000
Boldin PlannerPlus	70	65	$1,002,000
Schwab calculator	67	64	$912,000
Fidelity Planning Summary	68	64	$935,000

Schwab and Fidelity recommended claiming earlier than the more rigorous tools. The 14-month spread (between Schwab's 64-year-old lower earner claim and OpenSocialSecurity's 67-year-old) translates to about $110,000 in present-value benefit differences over the household's lifetime.

Where the difference comes from

Mortality assumptions. OpenSocialSecurity.com lets you specify mortality directly or use period life tables that adjust for current age and gender. MaxiFi does the same. Schwab and Fidelity use generic life expectancy from the chosen age, which tends to understate true expected longevity for healthy 62-year-olds.

A healthy 62-year-old non-smoker with no major health issues has an expected remaining life expectancy 3–5 years longer than the period-life-table average for someone aged 62. Most major-firm tools don't model this.

Discount rate. OpenSocialSecurity defaults to a 3% real discount rate (roughly the long-term real return on TIPS, which makes sense since SS benefits are inflation-indexed). Schwab uses an implicit discount rate closer to 5% real, which heavily discounts later-year benefits and thereby favors earlier claiming.

The choice of discount rate is the single largest driver of optimal claim recommendations across tools. A 3% real rate favors waiting; a 5% real rate favors claiming earlier.

Survivor benefit modeling. For our test household, the higher earner waiting until 70 locks in the survivor benefit at the maximum amount — the lower earner inherits the higher PIA upon the higher earner's death. Tools that ignore the survivor dynamic recommend earlier claiming for the higher earner. Tools that model it (OpenSocialSecurity, MaxiFi) almost always recommend the higher earner waiting until 70.

For couples with significant earnings differences, the survivor benefit can be the dominant variable.

When earlier claiming is correct

The "wait until 70" recommendation isn't universal. Earlier claiming is the right answer when:

• Health concerns suggest below-average life expectancy
• The household's portfolio is small enough that early SS dollars are needed for cash flow
• The lower earner expects to outlive the higher earner by a wide margin
• Tax planning requires SS income to fill specific brackets

For a 62-year-old with a serious health diagnosis, claiming at 62 is often unambiguously correct. For a 62-year-old with limited assets and immediate cash flow needs, the optionality of waiting isn't worth the reduced spending now.

SSA's own tool

The Social Security Administration provides a benefits calculator on ssa.gov. It shows what your benefit will be at your chosen claim age. It doesn't optimize. It doesn't tell you whether to claim earlier or later. It's a benefit estimator, not a planning tool.

This is sometimes confusing because users expect "the official SSA calculator" to provide planning recommendations. It doesn't. For optimization, you need a third-party tool.

What MaxiFi does that others don't

MaxiFi correctly handles complex household structures: divorced spouses with claim-eligibility on ex-spouse records, surviving spouses claiming on deceased-spouse records, blended families, and specific dependent benefits. For households with these complications, MaxiFi is essentially the only consumer-grade tool that gets the math right.

The downside: MaxiFi costs $109/year and the UI is utilitarian. For straightforward married households, OpenSocialSecurity.com (free) produces equivalent recommendations.

The verdict

Use OpenSocialSecurity.com for a rigorous, free baseline. Run the same scenario through Boldin if you have a paid subscription, and through MaxiFi if your household has any non-standard structure (divorce, prior marriage, dependent considerations).

Treat Schwab's and Fidelity's recommendations as conservative — they tend toward earlier claiming, partly because of mortality assumptions that don't account for actual health, and partly because of higher implicit discount rates.

The right answer for most healthy 62-year-old couples is to delay the higher earner's claim until 70 and decide separately when the lower earner should claim. The math is robust to most reasonable input variations. Where the tools disagree is where the human-judgment work has to happen.

There's no calculator that tells you whether you'll live to 87. But there's a calculator that tells you what to do if you do.