Latex or acrylic paint is a water-based paint. When you paint in your home, you need to protect the carpet by covering it with a drop cloth. If the paint encounters the carpet, it can dry quickly. Remove the dried water-based paint stain as soon as possible so that it does not become a permanent addition to your carpet. Water-based paint will remove easily from carpet if you treat it properly.
Scrape the dried paint off the carpet gently with a dull butter knife.
Vacuum up the scraped-off dry paint.
Blot the water-based paint stain with a washcloth dampened with rubbing alcohol.
Rinse the carpet with warm water. Blot the water from the carpet with a towel.
Combine 1 tsp. of dish-washing detergent with 2 qts. of warm water in a bowl if you still notice the stain. Blot the mixture onto the stain with a sponge, working from the outside to the middle of the stain.
Rinse the area with cool water. Place a portable fan next to the area to help it dry faster. Vacuum the area to remove any paint particles.