The new NISA is a scheme specific to Japan's tax system. If you are not a Japanese tax resident, it does not apply to you, or different rules will apply in your own country.
How it works
The new NISA consists of a Tsumitate Investment Quota and a Growth Investment Quota (see related pages), which can be used together. Making the tax-free holding period indefinite is considered the biggest change from the previous NISA scheme.
Things to watch for when using it
There are caps on the amount that can be invested tax-free, and detailed rules — such as how the allowance can be reused after a sale — apply. Because the scheme may change in the future, please confirm the latest details with the FSA, the NTA, or a qualified tax accountant.