As a card-carrying Budget analyst who has been crunching fiscal numbers for more than two decades, I am a little apprehensive that the forthcoming Budget will turn out to be the hardest one to crack yet. This is essentially for three reasons. For one thing, it comes in the wake of an unprecedented macroeconomic shock — demonetisation. That in itself might not send it to the top of the complexity list. We had a Budget that responded to the great financial crisis of 2008. However, the impending introduction of the goods and services tax (GST) muddies the waters a little more. I would assume that the indirect tax projections would be underpinned by the new rates under the GST. But things still remain a little fuzzy on that front. Someone who tries a bottom-up analysis of the numbers will come up against somewhat obvious obstacles. Which goods, for instance, are to be taxed at what rate? How will the Budget accountants split the GST imposed into the Centre’s take and that of the states when it comes to arriving at the headline figures? The third problem that makes life even more difficult arises from the change in fiscal accounting norms. The spilt between “Plan and non-Plan” revenues on expenditures will disappear and the entire Railway Budget (that served as some kind of a warm-up for the main Budget) will now be part of the general Budget.

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