2014 OASDI Trustees Report

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F. INFINITE HORIZON PROJECTIONS
Another measure of trust fund finances is the infinite horizon unfunded obligation, which takes account of all annual balances, even those after 75 years. The extension of the time period past 75 years assumes that the current-law OASDI program and the demographic and economic trends used for the 75-year projection continue indefinitely.
Table VI.F1 shows that the OASDI open group unfunded obligation over the infinite horizon is $24.9 trillion in present value, which is $14.3 trillion larger than for the 75‑year period. The $14.3 trillion increment reflects a significant financing gap projected for OASDI for years after 2088. Of course, the degree of uncertainty associated with estimates increases substantially for years further in the future.
The $24.9 trillion infinite horizon open group unfunded obligation is equivalent to 4.1 percent of taxable payroll or 1.4 percent of GDP. These relative measures of the unfunded obligation over the infinite horizon express its magnitude in relation to the resources potentially available to finance the shortfall.
The summarized shortfalls for the 75-year period and through the infinite horizon both reflect annual cash-flow shortfalls for all years after trust fund reserve depletion. The annual shortfalls after trust fund reserve depletion rise slowly and reflect increases in life expectancy after 2033. The summarized shortfalls for the 75-year period, as percentages of taxable payroll and GDP, are lower than those for the infinite horizon principally because only about three-quarters of the years in the 75-year period have unfunded annual shortfalls, and annual shortfalls within the 75-year period represent a smaller share of taxable payroll and GDP than do the shortfalls in later years.
The projected infinite horizon shortfall could be eliminated with additional revenue equivalent to an immediate increase in the combined payroll tax rate from 12.4 percent to about 16.7 percent (a relative increase of 35 percent).1 This shortfall could be eliminated by reducing cost in a manner equivalent to an immediate and permanent reduction in benefits for all current and future beneficiaries by 24.5 percent.
Unfunded obligation through the infinite horizon a
Unfunded obligation through 2088 b

a
Present value of future cost less future non-interest income, reduced by the amount of trust fund asset reserves at the beginning of 2014. Expressed as a percentage of payroll and GDP for the period 2014 through the infinite horizon.

b
Present value of future cost less future non-interest income through 2088, reduced by the amount of trust fund reserves at the beginning of 2014. Expressed as a percentage of payroll and GDP for the period 2014 through 2088.

Notes:
1. The present values of future taxable payroll for 2014-88 and for 2014 through the infinite horizon are $386.9 trillion and $603.3 trillion, respectively.
2. The present values of GDP for 2014-88 and for 2014 through the infinite horizon are $1,093.7 trillion and $1,816.7 trillion, respectively. Present values of GDP shown in the Medicare Trustees Report differ slightly due to the use of interest discount rates that are specific to each program’s trust fund holdings.
Last year, the Trustees projected that the infinite horizon unfunded obligation was $23.1 trillion in present value. If the assumptions, methods, and starting values had not changed, moving the valuation date forward by 1 year would have increased the unfunded obligation by about $0.9 trillion, to $24.0 trillion. The net effects of changes in assumptions, methods, law, and starting values increased the infinite horizon unfunded obligation by an additional $0.9 trillion, to $24.9 trillion in present value.
The infinite horizon unfunded obligation is 0.1 percentage point higher than in last year’s report when expressed as a share of taxable payroll, and about the same as last year when expressed as a share of GDP. The main changes affecting the infinite horizon unfunded obligation for this report are revised starting values, a change in the ultimate consumer-price index, legislative changes, changes in near-term economic assumptions, and other method changes. See section IV.B.6 for details regarding changes in law, data, methods, and assumptions.
a. Unfunded Obligations for Past, Current, and Future Participants
Table VI.F2 separates the components of the infinite horizon unfunded obligation (with the exception of general fund reimbursements) among past, current, and future participants. The table does not separate past general fund reimbursements among participants because there is no clear basis for attributing the reimbursements across generations.
Past participants are defined as those no longer alive as of the valuation date. Current participants are those age 15 and older as of 2014. Future participants are those under age 15 or not yet born.
The excess of the present value of cost for past and current participants over the present value of dedicated tax income for past and current participants produces an unfunded obligation for past and current participants of $26.1 trillion. Table VI.F2 also shows an unfunded obligation of $25.5 trillion for past and current participants, including past and future general fund reimbursements. Future participants will pay dedicated taxes of $0.6 trillion more into the system than the cost of their benefits ($53.6 trillion of dedicated tax income as compared to $53.0 trillion of cost). The unfunded obligation for all participants through the infinite horizon thus equals $24.9 trillion.
This accounting demonstrates that some generations are scheduled to receive benefits with a present value exceeding the present value of their dedicated tax income, while other generations are scheduled to receive benefits with a present value less than the present value of their dedicated tax income, whether past general fund reimbursements are included or not. Making Social Security solvent over the infinite horizon requires some combination of increased revenue or reduced benefits for current and future participants amounting to $24.9 trillion in present value, 4.1 percent of future taxable payroll, or 1.4 percent of future GDP.
Less present value of past general fund reimbursementsa

a
Distribution of general fund reimbursements among past, current, and future participants cannot be determined.

b
Less than 0.05 percent of GDP.

c
Less than $50 billion.

d
Less than 0.05 percent of taxable payroll.

Notes:
1. The present value of future taxable payroll for 2014 through the infinite horizon is $603.3 trillion.
2. The present value of GDP for 2014 through the infinite horizon is $1,816.7 trillion.
3. Totals do not necessarily equal the sums of rounded components.

1
The indicated increase in the payroll tax rate of 4.3 percent is somewhat larger than the 4.1 percent infinite horizon actuarial deficit because the indicated increase reflects a behavioral response to tax rate changes. In particular, the calculation assumes that an increase in payroll taxes results in a small shift of wages and salaries to forms of employee compensation that are not subject to the payroll tax.


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