How to Dispose of Old Paint? Every Option Explained [2026]

The disposal method depends entirely on whether your paint is latex (water-based) or oil-based. Check the label on the can.

Latex paint (also called acrylic or water-based): This is the most common type used in homes. It cleans up with water. Latex paint is not considered hazardous waste in most states once it is dried solid.

Oil-based paint (also called alkyd): This contains chemical solvents. It is classified as hazardous household waste everywhere in the United States. You cannot put oil-based paint in the trash, even if it is dried out. It must go to a hazardous waste collection facility.

If the label is missing or unreadable: Dip a brush in the paint and try to clean it with water. If water cleans it, it is latex. If you need mineral spirits or paint thinner, it is oil-based. Treat unknown paint as oil-based to be safe.

Dried latex paint is safe for regular trash in most municipalities. The key is getting every bit of liquid paint solidified before putting the can in the garbage.

For less than 1/4 can of paint: Remove the lid and let it air dry. Stir occasionally to speed drying. In warm weather, this takes 2-3 days for a thin layer.

For 1/4 to 1/2 can: Add an equal amount of kitty litter (clay-based, non-clumping works best). Stir thoroughly. The kitty litter absorbs the liquid and the mixture hardens in 24-48 hours. You can also use sawdust, shredded newspaper, or cement mix.

For more than 1/2 can: Use a paint hardener product ($3-5 at hardware stores). Pour in the packet, stir, and the paint solidifies in about 20 minutes. Brands like Homax and DAP make paint hardener specifically for this purpose.

Once the paint is completely solid, leave the lid off and place the can in your regular trash. Many waste collectors want to see that the paint is dry — leaving the lid off proves it.

Never pour liquid latex paint into the trash. It can leak, contaminate other waste, and create a mess for sanitation workers.

PaintCare operates the largest paint recycling network in the country with over 8,000 drop-off locations. The program accepts all paint types — latex, oil-based, stain, varnish, primer, and shellac — at no cost.

PaintCare operates in 11 states plus Washington D.C.: California, Colorado, Connecticut, Maine, Minnesota, New York, Oregon, Rhode Island, Vermont, Washington, and the District of Columbia. More states are joining as legislation passes.

Drop-off locations include Sherwin-Williams, Benjamin Moore, ACE Hardware, and other participating paint retailers. Most locations accept up to 5 gallons per visit, though some accept more. Visit paintcare.org to find your nearest drop-off site.

If PaintCare is not in your state, your county likely operates a household hazardous waste (HHW) facility or hosts periodic collection events. Search your county name plus "household hazardous waste" for locations and schedules. Most HHW facilities accept paint, stain, solvents, and other chemical products at no charge to residents.

Habitat for Humanity ReStore accepts usable latex paint — cans that are at least half full, not separated, and less than 10 years old. The paint gets resold to fund affordable housing projects.

Oil-based paint is hazardous waste — period. Every state classifies it this way. You cannot dry it out and trash it like latex paint.

Take oil-based paint to your local household hazardous waste (HHW) facility. These are typically run by your county and accept oil-based paint, stain, paint thinner, mineral spirits, and other solvents at no cost to residents.

Many counties also hold collection events 2-4 times per year at rotating locations. Check your county's waste management website for the next event date.

In PaintCare states, you can drop off oil-based paint at any PaintCare location alongside latex paint. The program handles all types.

Never do the following with oil-based paint:

• •Pour it down a drain or toilet — it contaminates water treatment systems
• •Pour it on the ground or into a storm drain — this is illegal and pollutes waterways
• •Put liquid oil-based paint in the trash — it is a fire hazard and violates waste regulations
• •Burn it — oil-based paint produces toxic fumes

Yes. Empty steel paint cans are recyclable through your regular curbside recycling program in most municipalities. The cans must be completely empty — scrape out any remaining paint and let the interior dry before recycling.

Remove the lid and place both the can and the lid loosely in your recycling bin. Steel cans with dried paint residue on the inside are generally accepted, but cans with liquid paint are not.

Plastic paint buckets (5-gallon size) follow the same rule: empty, dry, and clean enough that no liquid paint remains. Check your local recycling program — some accept #2 and #5 plastics from paint containers, others do not.

Spray paint cans must be completely empty (no hissing when the nozzle is pressed). Empty aerosol cans are accepted in most curbside recycling programs. Do not puncture them.

PaintCare estimates that 10% of all paint sold in the United States goes unused — roughly 80 million gallons per year. The average homeowner has 4-6 partial cans of paint stored in their garage, basement, or shed at any given time.

Many of those cans are from previous homeowners. After a move, people inherit paint they do not want and have no idea what to do with it.

If you are clearing out a garage, basement, or storage area, you may find 10-20+ cans of old paint alongside other junk. For that scenario, separate the paint for proper disposal (PaintCare or HHW) and book a junk removal service like Dropcurb ($79) to haul everything else — old shelving, broken tools, boxes, and other garage clutter — in one trip.

Spray paint cans: Empty aerosol cans go in curbside recycling. Cans with remaining paint must go to a household hazardous waste facility — aerosol cans are pressurized and classified as hazardous waste when not empty.

Wood stain: Water-based stain follows the same rules as latex paint — dry it out and trash it. Oil-based stain follows oil-based paint rules — take it to HHW.

Varnish and polyurethane: Most varnishes are oil-based. Treat them as hazardous waste. Water-based polyurethane (like Polycrylic) can be dried and trashed like latex paint.

Paint thinner and mineral spirits: Always hazardous waste. Never pour down drains. Take to HHW facility. Used paint thinner can actually be filtered and reused — let solids settle in a sealed jar, pour off the clear liquid on top, and reuse it.