Why Waiting Until 70 for Social Security Isn’t Always the Best Move

For years, retirees have heard the same advice: wait until age 70 to claim Social Security.

The logic is easy to understand. The longer you wait, the larger your monthly benefit can become. For many people, that increase is meaningful, and in the right situation, delaying can absolutely make sense.

But here’s the part that often gets missed:

The biggest monthly benefit doesn’t always lead to the best overall retirement outcome.  For retirees with substantial pre-tax savings, the Social Security decision is rarely just about maximizing one check. It can affect taxes, portfolio withdrawals, Roth conversions, future required minimum distributions, and even Medicare-related costs.  That’s why the better question is often not:

“How do I get the biggest Social Security payment?”

It’s:

“Which claiming strategy works best with the rest of my retirement plan?”

A Bigger Check Isn’t the Whole Story

Waiting until 70 may increase your monthly benefit significantly compared with claiming at 62. That part is real.

But if you delay benefits, you still need income to cover your expenses in the meantime. For many retirees, that income has to come from somewhere else, often from a traditional IRA or 401(k).

And that’s where the planning gets more nuanced.

If most of your retirement savings sit in pre-tax accounts, delaying Social Security may mean taking larger taxable withdrawals for several years just to fund your lifestyle. Those withdrawals can affect:

• Your annual tax bill

• How much room you have for Roth conversions

• The size of future RMDs

• Long-term tax efficiency across retirement

In other words, delaying Social Security can create trade-offs that aren’t visible in a simple break-even analysis.

A Hypothetical Example

Consider Linda, a hypothetical retiree age 62, with approximately $1.2 million in a traditional IRA.

She expects to need about $72,000 per year to support her retirement lifestyle, and she’s trying to decide whether to claim Social Security now or wait until 70.

If she claims now, she may receive around $24,000 per year.

If she waits until 70, her future benefit might rise to roughly $41,000 per year.

At first glance, waiting appears to be the obvious winner. After all, a larger guaranteed monthly check sounds appealing.  But here’s what that comparison leaves out:

If Linda delays Social Security, she may need to pull the full $72,000 per year from her IRA for the next eight years.  If she claims now, she may only need to withdraw about $48,000 per year from the IRA.  Over time, that difference can be substantial.

Why the Source of Income Matters

Not all retirement income is taxed the same way.  Withdrawals from a traditional IRA are generally taxed as ordinary income. Social Security benefits may also be taxable, but often not in the same way or to the same extent, depending on total income and state of residence.  That means two retirees with the same spending need can end up with very different tax outcomes depending on where their income comes from.  For someone relying heavily on pre-tax retirement accounts, claiming Social Security earlier may reduce how much must come out of those accounts during the early retirement years. In some cases, that can improve flexibility and create planning opportunities elsewhere.  That doesn’t mean claiming early is always the right move. It means the decision deserves a broader analysis than simply comparing monthly benefit amounts.

Why Break-Even Analysis Only Tells Part of the Story

Break-even analysis can be useful. It helps estimate how long someone would need to live for the larger delayed benefit to make up for the years of missed payments.  That math matters.  In many cases, delaying benefits may still be the stronger choice, especially for people with:

• Longer life expectancy

• Strong family longevity

• Concerns about outliving assets

• A need to maximize survivor income for a spouse

But break-even analysis usually looks at just one dimension of the decision. It often does not fully capture the impact of taxes, withdrawal sequencing, conversion opportunities, and broader retirement income planning.  That’s why relying on break-even analysis alone can sometimes lead retirees to oversimplify a more complex decision.

A Better Way to Think About It

Instead of asking, “Should I wait until 70?”, a more useful question may be:

“How does this decision affect the rest of my plan?”

That includes questions like:

• How much will I need to withdraw from my portfolio if I delay?

• What will those withdrawals do to my tax picture?

• Am I trying to complete Roth conversions in the years ahead?

• How could this effect future RMDs?

• Will a larger later benefit outweigh the flexibility I give up today?

When these factors are considered together, the answer is often more personalized and more practical.

The Roth Conversion Angle

This is where the conversation often gets more interesting.  Many retirees in their 60s want to use the years before RMDs begin to convert portions of a traditional IRA into a Roth IRA. The goal is often to reduce future tax exposure and improve flexibility later in retirement.  But Roth conversions don’t happen in a vacuum.

Every year, you only have so much room inside your preferred tax bracket. If large IRA withdrawals are already filling that space to cover living expenses, there may be less room left for strategic Roth conversions.  So, for retirees like Linda, Social Security timing and Roth conversion planning are often connected.

A claiming strategy that works well with the rest of the plan may help:

• Reduce reliance on taxable IRA withdrawals

• Preserve room for planned Roth conversions

• Manage future RMD exposure

• Create more control over long-term taxable income

Again, none of this is automatic. The right answer depends on the specifics of the household.

The Real Goal

The goal isn’t simply to maximize Social Security in isolation.  The goal is to make a Social Security decision that supports the rest of your retirement plan.

Sometimes that means waiting.  Sometimes it means claiming earlier than conventional wisdom suggests.  And often, it means running the numbers carefully before defaulting to either choice.

Final Thoughts

Social Security claiming is one of the most important retirement decisions many people will make, but it should almost never be treated as a standalone choice.

Your claiming age can affect your tax brackets. Your tax brackets can affect your Roth conversion strategy. Your Roth conversion strategy can affect future RMDs. And future income levels can affect Medicare-related costs.

It’s all connected.

If you’re approaching retirement and wondering when to claim Social Security, the most valuable step may be to evaluate the decision within the context of your full financial plan, not just the size of the age-70 benefit.

Important Disclosure: This material is for informational purposes only and is not intended as individualized investment, tax, or legal advice. Social Security claiming strategies involve multiple factors, including tax considerations, longevity expectations, and income needs. Examples are hypothetical and for illustrative purposes only. Individuals should consult with their financial, tax, and legal professionals before making decisions.