Child poverty 2028 | TCJA extension passes by Q2 2026

Conditional resolution: only meaningful if a TCJA-extension package matching the House framework is enacted by June 30, 2026. Under that conditioning event, the CTC ($2,000/child, $1,700 refundable) and EITC are stable through 2028. Question is the residual SPM child-poverty path under stable policy.

Two years of stable policy compound modestly: real-wage growth at the lower end of the distribution lifts roughly 0.2pp of children out of measured poverty. Refundable-credit take-up rates also drift up slightly as IRS outreach matures.

The conditioning event removes most policy uncertainty but does not remove macro uncertainty (labor market, food/shelter inflation in SPM thresholds). CI reflects macro distribution only.

The resolver is the Census Bureau first-print Supplemental Poverty Measure poverty rate for people under 18 in calendar year 2028. This is not the official poverty measure: SPM resources include taxes and credits, in-kind transfers such as SNAP and housing assistance, and subtract work, child care, child support paid, and medical out-of-pocket expenses while applying housing-cost adjustments.

Base-rate/reference-class anchor: the relevant prior is not a 2022-2024 child series because the draft evidence did not fetch the 2024 child value. I use 2022 and 2023 child SPM values plus the 2024 overall SPM signal. After the 2021 refundable-credit expansion expired, child SPM returned to low-to-mid teens, with 2021 at 5.2% treated as an exceptional policy year.

Model prior: I am using a persistence/random-walk prior rather than a formal time-series model because the child SPM history is short, mechanically altered by large tax-credit changes, and the target is conditional on a major fiscal package. A persistence prior around the recent post-expansion level is more transparent than fitting a trend through policy breaks.

Level and momentum: 2024 overall SPM stayed at 12.9%, and Census described most groups other than older adults and Black individuals as not significantly changed from 2023. That points to a child rate near the 2023 level rather than a decisive downtrend before the conditional policy shock.

Policy mechanism: under the condition, a House-style TCJA extension prevents the child credit from falling back toward the pre-TCJA $1,000 structure, which is poverty-reducing versus expiration. But the extension is not the 2021 fully refundable CTC and therefore does much less for the lowest-income children than the ARPA design that produced the 5.2% child SPM rate.

Counter-consideration: if the enacted package preserves more SNAP, Medicaid-linked expense protection, or refundable child credit value than assumed, child SPM could fall toward 11%. Conversely, deeper nutrition cuts, weak employment, or high shelter inflation by 2028 could push the first print above 18%.

Start with a post-expansion base of 13.0% to 13.3% from 12.4% in 2022, 13.7% in 2023, and the 12.9% overall SPM signal for 2024. Add about 0.4 percentage point for partial-refundable-credit limits versus a stronger anti-poverty design and about 0.5 point for likely transfer and expense headwinds under the House framework by 2028, giving 14.2%. The interval 10.8% to 18.0% allows roughly -3.4 to +3.8 points around the point, wider than the observed 2022-to-2023 child SPM move of 1.3 points because the horizon is four years, the target is conditional on fiscal legislation, and labor, housing, and medical-expense shocks can compound.

Review disposition: accepted the critique to avoid using the 2024 report URL as if it were the 2028 source, to rephrase the base rate as 2022-2023 child evidence plus a 2024 overall signal, to state a persistence prior instead of implying a formal model, and to tie the interval to observed movement plus policy uncertainty. I retained the same point forecast because the critique did not materially change the central evidence.