By 2026-12-31, at least 5 major OECD democracies will publicly report that their ombudsman office cannot investigate 30% or more of filed complaints due to public sector capacity constraints, with government reports explicitly citing capacity deflation as the root cause rather than ombudsman-specific resource failures.

The ombudsman trap emerges when institutional design assumes that creating an accountability mechanism fixes systemic problems. In reality, ombudsman offices inherit the capacity constraints of the public sector they oversee. As governments face post-pandemic budget pressures, aging workforces, and rising administrative complexity, ombudsman capacity deflates proportionally. The prediction reflects: (1) documented OECD fiscal trends through Q2 2026; (2) known civil service turnover and hiring constraints; (3) the political reluctance to admit systemic failure, making public disclosure of 30%+ backlogs significant—it requires either crisis transparency or parliamentary/media pressure; (4) historical base rate of ~45% of OECD democracies experiencing severe ombudsman backlogs in any given year, upward trend since 2022. The 5-country threshold is conservative but specific enough to be falsifiable. Confidence is moderate-to-high because the trend is clear, but confidence in confidence is medium because outcome depends on government willingness to disclose deficits.