The national mortgage delinquency rate fell by 37 basis points in March to 3.35%, a 10% drop on a percentage basis, according to ICE Mortgage Technology. The move came during the month that usually brings the biggest seasonal improvement in mortgage performance data.
ICE said delinquency rates averaged a 10.3% decline in March, underscoring how much of the improvement reflected the calendar as much as borrower behavior. March is typically the strongest month for seasonal gains, and the data this time was noisy.
Still, the headline number gave lenders and servicers a brief piece of good news after months of pressure on household budgets. Rising living costs since the start of the Iran war on Feb. 28 had not yet shown up in monthly payment stress, suggesting borrowers were still getting through the period without a broad deterioration in mortgage performance.
The catch is that the softness in delinquencies did not appear evenly spread. ICE said concentration risk was emerging among newer vintage loans and FHA borrowers, a warning sign that some pockets of the market were already under strain even as the national rate improved. That matters because those segments can turn first when affordability weakens.
For now, the March figures point to a mortgage market that is holding up better than feared, but only after adjusting for the seasonal lift that usually flatters the spring data. The next test will be whether the rise in day-to-day costs begins to show up in late payments once that seasonal cushion fades.

