Abstract:
The research aims to compare taxable income after the expiration of tax shield from loss carry forward with taxable income before the expiration of tax shield from loss carry forward by focusing on average taxable income to total assets ratio. Annual corporate income tax return form and financial statements of 120 companies, both from manufacturing sector and servicing sector, that utilized tax shield from loss carry forward for corporate incomd tax calculation from 1993-2004 were selected by purposive random sampling from Business Online Database. The paired-sample t-test applied at statically significant level 0.05The findings show that average taxable income to total assets ratio in the year after the expiration of tax shield from loss carry forward is significant lower than the ratio of the period before the tax shield from loss carry forward expired. Furthermore the data were classified by size for taxable income to total assets ratio comparison, the result shows that the decrease in taxable income to total assets ratio of small firms is proportionately higher, but insignificant statistically, than that of large firms is.