The MSDN lists supported HTML in SSRS, quoting that article: • Hyperlinks: <A HREF> • Fonts: <FONT> • Header, style and block elements: <H{n}>, <DIV>, <SPAN>, <P>, <DIV>, <LI>, <HN> • Text format: <B>, <I>, <U>, <S> • List handling: <OL>, <UL>, <LI> Only the href attribute on a tag is supported. That means target attribute will be ignored. To set hyperlink to open in new window in Reportviewer, you must set the “HyperlinkTarget” property of Reportviewer […]