You must register your business for VAT if you supplied taxable goods and services amounting to more than £61,000 in the last 12-month period, or if you anticipate supplying taxable goods and services amounting to more than £61,000 in the next 30-day period alone. Businesses with a turnover below the registration threshold can register voluntarily.
Advantages:

Ability to reclaim some of your input tax

Increased credibility for your business, some businesses prefer dealing with suppliers with a VAT number

If your supplies are to other VAT-registered businesses then they can reclaim the VAT charged

Disadvantages:

You will also need to start keeping VAT records, which will mean a lot more paperwork and fill in a regular VAT return with details of your sales and purchases

If your supplies are to the public or non-VAT registered businesses then they cannot reclaim the VAT charge

Price and Fees VAT Registration £50.00                                                                                            order
If you wish we can register your company for VAT on your behalf, by using the VAT Online Registration Service. VAT Registration fee: £50.00. Service includes:

Free advice to fill out application

Submission  Your VAT Application Online

Communicating with the Inland Revenue

We do not guarantee a VAT Number. If HM Revenue and Customs decline the application we are unable to proceed.