That pile of old tyres in your garden can become a mosquito breeding ground, a home for rats and other vermin or even a fire threat. Getting rid of old tyres should be a priority for these reasons, but throwing them out in a landfill isn't the answer --local councils won't accept them. There are several options for free tyre disposal, so choose the most convenient one for you. If you cannot find a free option nearby, you might need to pay a small fee, but this is better than paying a fine for improper disposal.
Many tyre sellers will dispose of old tires for free if you buy replacement tyres. Call around to your local fitters to see if any offer this service. Arrange to take your car in for tyre work when you find a garage that is willing to get rid of the old ones for you.
Check with your county's waste disposal department to see whether you can bring tires to a recycling facility for free. They usually don't. However, many local councils sometimes hold special amnesties or a disposal drive for specific item, so you might get lucky.
Contact the tyre's manufacturer. This brand information should be written on the tyre. Ask whether they run a take-back or mail-back program for old tyres. Arrange to dispose of your tyres through this program.