Input tax credit: entitlement depends on registration, proper tax invoices, and restrictions on personal and construction-related use. Every registered taxable person may claim input tax credit into the electronic credit ledger subject to prescribed conditions, possession of prescribed taxpaying documents, receipt of goods or services (including deemed receipt), payment of tax to government, and filing of returns. Credits for inputs held at registration or on change of liability are allowed subject to valuation rules and a one year invoice limitation. Credits are restricted or disallowed for partial non business use, non taxable or exempt supplies, specified motor vehicles and certain construction related supplies; adjustments, transfers, time bars and recovery mechanisms are prescribed.