Advance tax is a critical component of the Indian tax structure in the sense that it demands companies and people to prepay their income tax in the form of instalments rather than paying it in lump sum at the end of the financial year. It takes effect when the cumulative tax liability is more than Rs 10,000 during a financial year. This system provides a steady stream of income for the government and prevents taxpayers from paying a large amount of tax while filing their returns. Failure to pay advance tax within time can lead to a charge of interest, which will increase the liability of the taxpayer.