Abstract:
The purpose for this research is to study the levels of tax planning and the relationship between tax planning and the price of common stock in listed companies in the Stock Exchange of Thailand (SET). The data were collected from SETs financial documents and annual reports in the year 2016 of listed companies in SET.
The sample comprised listed companies in SET except financial sector companies, companies in revival and rehabilitation as well as companies with operating losses. There were 190 companies containing the complete information that could be used in the study. Levels of tax planning were measured by financial ratios of three ratios, namely, the ratio of current tax to total asset, the ratio of current tax to operating cash flow and the ratio of effective tax rate. The statistical devices employed in the analysis were descriptive statistics, Pearsons correlation coefficient, and multiple regression analysis.
The results indicated that tax planning calculated from the ratio of current tax to total asset had an average of 1.06 Percent and had a positive relationship in the same direction with the price of common stock in listed companies in the Stock Exchange of Thailand (SET) at 0.01 level of significance. This means that the companies with high tax planning strategies (low ratio of current tax to total asset) would have the low price of common stock. On the other hand, the companies with low tax planning strategies would have the high price of common stock. Regarding to tax planning gained from the ratio of current tax to operating cash flow, it had an average of 10.72 Percent and the effective tax rate was 13.17 Percent There was no relationship between the ratio of current tax to operating cash flow and the ratio of effective tax rate at 0.05 level of significance.