The Labor Department’s latest monthly report on hiring and unemployment will include revisions for previous months. The revised figures should provide a more accurate picture of the U.S. job market, but they could also sow confusion.

The monthly job figures are based on two surveys, one of employers and one of households. Those surveys are generally reliable, but they aren’t perfect. So once a year, the government reconciles the numbers with less timely but more reliable data from other sources.

Figures in the employer survey will be revised sharply downward to align with data from state unemployment offices showing that employers added hundreds of thousands fewer jobs in 2023 and 2024 than initially reported. The updated figures should show slower but still healthy job growth in those years.

The other change applies to the household survey. It will reflect an updated methodology that the Census Bureau considers a better reflection of recent immigration in its population estimates. That will show up as a huge, one-month jump in virtually every measure that is based on them, and preclude comparisons with previous months. But measures based on ratios — like the unemployment rate and the labor force participation rate — should be mostly unaffected.