Annual Report 2017

165 The tax on the Group’s revenues over expenses before tax differs from the theoretical amount that would arise using the Thailand basic tax rate as follows: The weight average applicable tax rate was 21.56% (2016: 11.59%). 34. Commitments with non-related parties (Unit: Baht’000) (Unit: Baht’000) Consolidated SET 2017 2016 2017 2016 Revenues over expenses before income tax expense 2,336,318 1,989,884 1,758,561 1,630,279 Tax calculated at a tax rate of 20% (2016: 20%) 467,264 397,977 351,712 326,056 Income not subject to tax (74,260) (307,019) (74,260) (306,424) Expenses additional deductible for tax purposes (2,995) - (2,995) - Expenses not deductible for tax purposes 64,058 63,748 62,410 63,748 Eliminated transaction between related party, net of income tax 51,629 78,285 - - Revenues over expenses - Securities/Derivatives Investor Protection Fund, net of income tax (1,967) (2,377) (1,843) (2,225) Income tax 503,729 230,614 335,024 81,155 Consolidated SET 2017 2016 2017 2016 Capital commitments Buildings and other constructions 103,866 - 103,866 - Computer and software 50,931 - 50,931 - 154,797 - 154,797 - Non-cancellable operating lease commitments Within one year 14,515 14,269 14,515 14,269 After one year but within five years 26,908 28,092 26,908 28,092 41,423 42,361 41,423 42,361 Land lease commitments Within one year - 15,679 - 15,679 After one year but within five years - 62,716 - 62,716 Over five years - 111,957 - 111,957 - 190,352 - 190,352 System and building maintenance commitments Within one year 222,347 54,724 222,347 54,724 After one year but within five years 95,760 77,525 95,760 77,525 318,107 132,249 318,107 132,249