Some things you just don’t question. Social Security is one of them. You pay into it your whole career, and you expect to get paid when you retire.

No politician dares say you won’t.

Now, if the politicians were honest, they would tell us not to bet on Social Security… or Medicare, for that matter. Both programs are unsustainable without major changes no one wants to make.

The money is simply not there. As it stands, the retirement income and medical benefits millions think they already paid for aren’t going to happen.

It’s a sticky problem that won’t solve itself.

Social Security and Medicare Are Running Out of Reserves

Over its 83-year history Social Security has collected roughly $20.9 trillion in taxes and interest, according to this year’s trustee report.

It has also paid $18 trillion in benefits, leaving $2.9 trillion in trust fund “reserves.” Which are not really reserves, but let’s use their terms for a minute.

But there’s something unusual that will happen in 2018. For the first time since 1982, Social Security’s total cost will exceed its income this year. And this time, the trustees project it will keep doing so, as far as the eye can see.

To keep paying benefits at current levels, Social Security must therefore dip into those reserves. But eventually they will run out too—with estimated depletion by 2034.

Medicare is in a similar pickle. The hospitalization program (Medicare Part A) will deplete its reserves in 2026. That’s three years earlier than the trustees projected just last year.

Here’s a chart showing the shortfalls as a percentage of GDP. “SMI” (Supplementary Medical Insurance) is Medicare Parts B and D, “HI” is Medicare Part A (Hospital Insurance), and “OASDI” is Social Security and Disability Insurance.)

Source: Social Security Administration

This is a drag on the economy and will only grow as more Baby Boomers reach retirement age.

Last year, Social Security and Medicare were 42% of federal program expenditures. As they grow, either taxes must rise, or other spending has to go down, or the debt will get even further out of control.

The Least Bad Alternative

This is really just a cash flow problem.

After the trust funds run dry, we’ll need to match Social Security and Medicare’s expenses with their income. We can accomplish that by reducing expenses, raising revenue (i.e., increase taxes), or a combination of both.

Let’s also note, trust fund depletion won’t mean no money is available. The programs will still be collecting tax revenue. It just won’t be enough to cover current costs.

Raising revenue means higher taxes. That could happen, but it probably won’t be enough.

We can reduce expenses by either cutting benefits or making fewer people eligible—both politically difficult. People believe they “earned” it, but in fact, they didn’t.

Yes, money came out of all your paychecks labeled for Social Security, but it’s not like insurance. You have no contract with the government. Receiving Social Security is not a constitutional “right.” It doesn’t matter that you think you paid for it.

A mostly forgotten 1960 Supreme Court ruling, Flemming vs. Nestor, said the fact that you paid into Social Security creates no obligation for Congress to give you anything back. They can cut benefits to zero if they want to. Your only recourse is to vote them out.

Now, Congress probably won’t do that, because they know we would vote them out. But they’ll have to find some solution. If raising taxes and cutting benefits are both off the table, what’s left?

The least bad alternative is to raise the retirement age.

Congress previously did so back in the 1980s, in tiny steps that topped out at 67 for those (like me) born in 1960 or later.

In one sense, this is only fair. Life expectancies were much lower when they made 65 the full retirement age. People collected benefits for only a few years before they died. Many never collected at all. Now people routinely live into their 80s and 90s.

Look, not even Franklin Roosevelt would have agreed to a program guaranteeing all citizens a 20+-year non-working retirement with government-paid healthcare. That was never the idea, but it’s what we have right now.

The Social Security outlook would vastly improve if we raised the full retirement age to 72 or even 75, starting soon. It really is the easiest, least painful answer.

Today’s 75 year olds are in the same or better health than 65 year olds were in the 1930s. So that’s what I think Congress should do.

Which leaves the question: What will you do?

Getting Somewhere

Well, you can deny it, but it’s happening anyway.

More and more Baby Boomers reach 65 to find they can’t afford to stop working. Others can afford to retire, but they just enjoy their work.

As I wrote last year in How to Work in Retirement and Love It, this isn’t necessarily bad. The key is to have enjoyable work that suits your physical condition.

And, as I wrote last week in To Save the Economy, Don’t Retire, applying retirees’ skills and experience that currently go untapped could boost the economy, creating more and better jobs for younger people.

This idea isn’t perfect. But the present finger-pointing and worrying are getting us nowhere. Raising the retirement age is a bullet we may have to bite.

Join hundreds of thousands of other readers of Thoughts from the Frontline

Sharp macroeconomic analysis, big market calls, and shrewd predictions are all in a week’s work for visionary thinker and acclaimed financial expert John Mauldin. Since 2001, investors have turned to his Thoughts from the Frontline to be informed about what’s really going on in the economy. Join hundreds of thousands of readers, and get it free in your inbox every week.