Dividend tax

Hi there

I have a company and I am also the only director I pay myself dividends but my question is how often I am required to pay my tax on my dividends am I right in saying once a year through self assessment (by 31st of Jan the following year)

The company is my only source of income and what I have decided to do is to pay myself the minimum from the company (in order not to pay any employee and employer NIC and the rest I pay myself dividends)

I would appreciate your views

Many thanks