New asphalt needs to cure before it is sealed. Sealer applied too soon can interfere with curing and may not bond well. A minimum of 90 days is the common guideline, and waiting a full season is better.
There is no benefit to rushing. Fresh asphalt is dense and dark, so the protective coating can wait until the surface is ready. A driveway paved in late fall usually gets its first coat the following summer.
