A need is something that is necessary to live and function.

A want is something that can improve your quality of life.

Using these criteria, a need includes food, clothing, shelter and medical care, while wants include everything else. However, as you’ll find when creating a budget, these terms are more fluid than they appear to be at first glance. While working through your lists, you may find that some items can fit into both categories, making the process confusing.

A good trick for dividing wants from needs is to let some time pass before fulfilling your desire for the item, either theoretically or practically. The desire to obtain a need only grows stronger as time passes, while the desire to fulfill a want will weaken with passing time.