I need a formula in excel for my Salary slip ....!

OK, you can just expand my formula:

=A1*CHOOSE(MATCH(A1,{0,25000,30000,35000,40000,45000,50000,55000,65000},1),0,0.06,0.07,0.08,0.09,0.1,0.11,0.12,0.14)

However, you're reaching the point where it may be easier to set-up a look-up table in another group of cells and use VLOOKUP to return the tax rate.

Big Thanks Andrew-R
its working