In early June, the Social Security and Medicare trustees released their annual report on the fiscal health of these programs, and the situation looks dire. Medicare is scheduled to run out of money in 2026 (three years sooner than anticipated), while Social Security is expected to run out in 2034. The rising national debt is only one of the well-known financial struggles the millennial generation faces. The burdens of student loan debt, high housing prices (thanks to zoning restrictions), stagnant wage growth, the rising cost of healthcare and lingering aftershocks of the Great Recession are among the biggest sources of economic anxiety millennials feel.

Progressive politicians have been very successful at courting the youth vote, partly because they actually promote policy ideas that address many of these concerns. As unrealistic or counterproductive as Senator Bernie Sanders' proposals for single-payer health care or a $15 an hour minimum wage might be, they feel in theory like they would provide the economic stability and prosperity millennials want.

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Republicans, on the other hand, have struggled to craft a message to address these concerns. Fiscal conservatives recognize, correctly, that the burden of the $20 trillion national debt and over $200 trillion in unfunded liabilities will fall on millennials. Some conservatives have even written books about that fact. But the need to reform entitlements hasn't exactly caught millennials' attention. Pollster Kristen Soltis Anderson, in her bookThe Selfie Vote, notes that millennials generally view protecting the safety net as more important than reducing the deficit.

Clearly, Republicans have a problem. They need to craft solutions that address the millennial generation's struggles, but they can't seem to sell entitlement reform, their biggest policy preference that addresses those problems. The Republican approach to wooing millennials on policy is failing because talking about stopping the debt from reaching an unsustainable level is long-term and abstract, and offers few immediate tangible benefits. A new approach to both pave the way for entitlement reform and give millennials an immediate financial boost is to first reform not entitlement spending, but the payroll tax: specifically, by partially (or wholly) replacing it with a value-added tax.

Under the current Social Security model, workers pay for the benefits of current retirees through the payroll tax. This system creates the illusion of a pension program, in which what you put in is what you get out, but in reality Social Security is a universal safety net program for the elderly paid for by taxes. The payroll tax falls on workers and is a tax on labor, while the value-added tax (VAT) is a tax on consumption imposed at every part of the production process. Assuming that this policy change is revenue-neutral, switching to a VAT will shift the responsibility for funding Social Security and Medicare away from workers, disproportionately poorer and younger, and onto everyone participating in the economy as a whole. Furthermore, uncoupling Social Security funding from payroll taxes would pave the way for fiscal reforms to transform the program from a universal benefit program to one geared specifically to eliminating old-age poverty, such as means-testing benefits for high-income beneficiaries, indexing benefits to prices rather than wages or changing the retirement age.

Switching from the payroll tax to the VAT would address both conservative and liberal tax policy preferences.

Switching from the payroll tax to the VAT would address both conservative and liberal tax policy preferences. As the Tax Policy Center notes, the change would actually make the tax system more progressive. The current payroll tax is regressive, meaning that people with lower incomes tend to pay a higher effective tax rate than people with higher incomes. On the other hand, the value-added tax is much closer to proportional than the payroll tax, meaning that each income group pays closer to the same effective tax rate.

For Republicans, such a change would fit conservative economic ideas about the long-run causes of economic growth. A value-added tax has a much broader base than the payroll tax, and therefore would allow for much lower marginal tax rates, and lower marginal tax rates mean smaller disincentives to economic activity. According to the Tax Foundation's analysis of a value-added tax, the VAT would be a more economically efficient revenue source than most other taxes currently in the tax code.

Not only would replacing part or all of the payroll tax provide an immediate benefit to millennial taxpayers, it would also open the door for the much-needed entitlement reforms that have been so politically elusive. Furthermore, it would make the tax code both more pro-growth and less regressive. In order to even begin to address the entitlement crisis, win millennial support and stimulate the economy in a fiscally responsible manner, Republicans must propose moving from the payroll tax to the VAT.