UK borrowing costs are rising sharply, with long-term rates reaching their highest levels since the late 1990s, according to reports citing recent market moves. The Independent and The Telegraph both say the increase marks the steepest level seen in decades, with figures described as the highest since 1998 or, in one account, since the early 1990s. The coverage indicates the change is measured through government bond yields, which are used as a benchmark for borrowing costs over different time horizons. As yields climb, the cost of issuing and refinancing government debt increases, affecting how investors price UK government risk. The sources attribute the jump to prevailing market conditions and investor expectations, without presenting a single confirmed cause. Overall, the articles agree that the UK is facing higher costs for servicing and rolling over debt than at any point in recent history, underscoring pressure on public finances as borrowing becomes more expensive.