<h1>State implements GST rate rationalisation today with two slabs (5% and 18%); taxpayers must update billing systems</h1> A state tax department official said the state has completed field sensitisation and issued notifications implementing the GST Council's rate rationalisation, which takes effect today with two slabs (5% and 18%). The department reports no internal technical issues; any implementation glitches are expected to surface when taxpayers file returns and will be handled with GSTN support. Taxpayers must update billing systems to reflect reduced rates. The state anticipates an annual revenue shortfall of about Rs 7,000 crore under the new structure and has sought compensation from the central government.