The UK economy barely grew between July and September, with uncertainty about the Budget being blamed for the weak growth.
The economy slowed over the three-month period, growing by just 0.1%, and shrank during September itself.
Labour made boosting economic growth its top priority when it came into power but Chancellor Rachel Reeves said she was "not satisfied" with these latest figures which cover the first three months of the new government.
However, many businesses have criticised tax rises in the Budget which they say will lead to higher prices and fewer new jobs.