Do I owe capital gains tax when I sell my long-held Canton home?

Long-held ownership in Canton usually means meaningful appreciation, so federal capital gains tax is worth planning for, though the tax code provides a primary-residence exclusion if you have owned and lived in the home long enough to qualify. How much of your gain that exclusion covers depends on your purchase price, improvements and today's value. A CPA can calculate your specific exposure before you set a listing price.