Can taxing the rich close the gap needed to stabilize federal debt?
Core argument: Stabilizing federal debt at 100% of GDP would require non-interest savings starting at 2% of GDP and rising to 5% of GDP over the next three decades, with interest savings from a smaller debt supplying the rest.
Stabilizing the federal debt at 100% of GDP over the long term—which would far exceed the post-1960 average of 45% of GDP—would require non-interest savings beginning at 2% of GDP and ramping up to 5% of GDP over the next three decades. (The resulting interest savings from a smaller debt would provide the rest of the savings.) These figures assume the renewal of the 2017 tax cuts (as there is strong bipartisan support for extending the tax cuts for the bottom-earning 98% of earners) but do not assume any additional spending expansions, tax cuts, or economic crises—all of which would also have to be fully offset to meet this debt target. In short, the non-interest savings required to stabilize the debt will almost surely rise past 5% of GDP when accounting for additional spending and tax-cut legislation. Taxing the rich cannot close more than a small fraction of this gap.



