CA / CMA · Professional Utility
Depreciation Calculator
Companies Act Schedule II (useful-life based, SLM or WDV) with a year-wise schedule, and the Income-tax block-of-assets method with the half-rate rule for assets used under 180 days.
Computation aid. Schedule II prescribes useful lives (residual usually 5%); rates here are derived from the life and residual you enter — confirm against the Schedule and the company's technical assessment. The Income-tax block method applies the half-rate rule to assets used under 180 days and adjusts the whole block, not individual assets. Review before finalising.