Double check your work

Each year thousands of people lose millions of dollars in taxes, not by not availing the deductions available to them but by making errors and mistakes when they are counting their assets while paying the income tax.

People sometimes count their properties twice, or calculate tax on that money which is exempted from income tax, or make other small small errors which amount to huge losses. At the individual level, these mistakes rarely take place, and the losses are minimal if some kinds of mistake happen.

But at the global level, like while paying taxes for the big companies and businesses, these errors take place on a larger scale and amount to huge losses. Thus double checking ones work while paying taxes is as important as availing tax exemption in the form of deduction, or it is even more important than that.
Errors in tax returns often account for thousands or even millions of dollars of losses. Hence you must be very sure that your records and audits are up to the mark and there is nothing missing in the work you are doing.

It is best if you get the best CA you can afford to ensure the highest standards of error free work. It is better that one spends some amount of money in getting a good CA rather losing a lot for a error of his.