UK OBR GDP related forecasts UK OBR sees GDP growth in 2026 at 1.2%; Previous forecast 1.1%. UK OBR sees GDP growth in 2027 at 1.0%; previously forecast 1.6%. UK OBR sees government borrowing at 4.2% of GDP in 2026/27; previously forecast 3.6%. UK OBR sees government borrowing at 3.4% of GDP in 2027/28; previously forecast 2.9%. The UK OBR sees government borrowing at 1.8% of GDP in 2031/32. The UK OBR sees net financial debt at 83.1% of GDP in 2029/30. The UK OBR sees net financial debt at 82.3% of GDP in 2030/31.