What's it all about? Being a freelancer is very different from being employed. There are more risks, but there are also a great many advantages. You are a freelancer if you work for somebody else for a fixed period under a fixed contract to help them complete a project. You will effectively be selling your skills and time, and will usually be paid by the hour - although contracts with a fixed price to complete a fixed project are also possible depending on your field of expertise.
What's in it for your client?
There are several reasons why companies like to use freelancers.

For example:-

• They are usually more flexible over hours etc. than permanent staff;
• They are easier to hire and fire - and are not a long term commitment;
• They provide skills the in-house team may not have;
• They complete one off or small, regular tasks that do not require a full time employee.

The other major reason companies like freelancers is that they save money. If a company employs you they have to pay sick pay, holiday pay, redundancy pay and employer's national insurance. But if they use you as a freelancer they don't have to pay any of this.
What's in it for you?
Every freelancer has his or her own reasons for liking it. Some of the most common are:-

• Being you own boss - which can be extremely enjoyable and satisfying;
• More money - freelancers are usually paid more than employees working alongside them on a project;
• Freedom - e.g. Freelancers can, to varying degrees, choose when and where to work, when to take holidays etc.;
• Variety - by moving from contract to contract and company to company, freelancers can develop very varied experience and an impressive CV;
• Less tax - freelancers who take professional advice can also greatly reduce the amount of tax they pay.

Sources: Online Job Freelance Writing