The presentation will show the experience of the Spanish Tax Agency in working with MT-specific features of the forthcoming ITS 2.0 specification (developed in the W3C's MultilingualWeb-LT project). It specifically talks about shifting from HTML 4.01 to HTML5 and strategies for annotating HTML5 content with ITS 2.0 markup in an efficient and pragmatic way, when faced with real-world pressures and requirements. This presentation will describe how the www.agenciatributaria.es site has been made multilingual using Linguaserve's Real Time Translation System, and the shift HTML5 and experience with ITS2.0 annotation (both automatic and manual).