Architecture Billings Index Score Rose 3 Points to 47.3 in June

Washington, DC, July 22, 2026—The AIA/Deltek Architecture Billings Index (ABI) score was 47.3 for June. Although the score improved by nearly three points from May, it remained in negative territory, indicating most firms reported a decline in billings.

Inquiries increased in June after a slight decline in May and the value of newly signed design contracts was just below 50, meaning it was essentially flat, with nearly equal shares of firms reporting decreases and increases. Backlogs also declined slightly in the second quarter, falling to an average of 6.3 months from 6.6 months in the first quarter. The sharpest decline was among small firms with annual billings of less than $250,000, where backlogs fell from an average of 4.9 months to 3.1 months.

“Architecture firms remain mired in one of the longest running downturns in the 30-plus year history of the ABI, which now stretches to 41 months without a majority of firms reporting billings growth,” said AIA chief economist, Richard Branch. “The uncertainty over the conflict in Iran along with high interest rates and significant labor shortages will continue to weigh on construction – and architect billings over the next several months.”

Regional averages were as follows: South (49.5); West (45.6); Midwest (45.1); Northeast (44.9). 

The sector index breakdown was institutional (47.4); commercial/industrial (46.7); multifamily residential (45.6); mixed practice (firms that do not have at least half of their billings in any one other category) (42.7).

The project inquiries index score was 56.1, and the design contracts index score was 49.8.