Extending the 2017 Tax Cuts Would Be Fiscally Reckless

For the new Congress, deciding the fate of the 2017 Tax Cuts and Jobs Act will present an immediate dilemma. Allowing the law’s provisions to expire as scheduled at the end of the year would effectively raise taxes on tens of millions of Americans. Yet fully extending them would add almost $5 trillion to an already dire 10-year budget deficit. What to do?

As a start, lawmakers need to accept budgetary reality: With debt expected to reach nearly 120% of gross domestic product by 2035, comprehensive tax reform and spending cuts — across a range of entitlements and other programs — will be unavoidable. A bipartisan commission should be empaneled to lay out realistic options for such an overhaul, with a goal of stabilizing the debt ratio at its current level of about 100% of GDP.

With that in mind, both parties should also agree that any extension of the law will be revenue-neutral over the next decade. The law cut individual tax rates, increased the standard deduction that taxpayers can choose instead of taking itemized deductions for mortgage interest and assorted other outlays, trimmed the value of some of those deductions, increased the child tax credit, and cut estate and gift taxes. It reduced the corporate rate from 35% to 21% (this change doesn’t expire automatically), raised depreciation allowances and cut taxes for so-called pass-through businesses (which pass their earnings directly to owners and investors and aren’t taxed separately in their own right).