Generally, the company should compile at least three months worth of evidence, including financial balance sheets, Social Security fee payments for four Thai employees (per every one foreign employee), and employee withholding tax filings (which is particularly important in order to show that the foreign employee is being paid the salary level which Thai Immigration prescribes for his or her nationality). In light of these requirements, it is recommended for any foreign entrepreneur coming to Thailand to plan in advance and hit the ground running.