Of course, much depends on how the premium is paid in your company. If it is the result of fulfillment of the plan and is tied to quantitative indicators, distributed in strict accordance with the official salary, amount of work done or with the labor force participation rate, you'll know exactly her size. Ie this award is determined by your labor input, and you have earned it, putting some effort and improving performance.
In this case, special thanks is not required - your merit that the plan was exceeded, was awarded and rewarded adequately effort. You, along with his colleagues worked for the prosperity of the company and it is (as represented by management) will thank you.
Another situation occurs when your labor participation and enthusiasm can not be expressed in quantitative terms. In this case the amount of the premium depends on how it will distribute your immediate supervisor. When you find that the differences on the labor front in the last month, received on its results increased premium costs to express gratitude to the Chief, notice and appreciate your diligence.
However, since there has not been without your participation, we can express gratitude as a joke or a simple, "Thank you, Mr. Smith, I will try." It is not necessary to crumble in excessive gratitude to the chief not sneaking suspicion that he made a mistake, if the premium okazalmya a surprise. He may think that your effort was random, and you no effort purposefully not applied.
Quite naturally will hear words of gratitude to the leadership of the company, if you write out a cash consideration on the occasion of the next anniversary, birth of a child or marriage. Accounting for such gifts are conducted as a one-time bonus. In this case, you can thank and his immediate superior, and all of the company's management, which is considered an opportunity to congratulate you on this manner.