Gross domestic product figures for the U.K. have shown a slight upturn in recent quarters. The Office for National Statistics said in December that the economy had expanded by 0.8 percent in the third quarter. But Britain's balance of payments continues to disappoint, with the nation's current-account deficit - a measure of a country's global trade as well as profits overseas - widened to 5.1 percent of overall GDP, the widest since 1989.
Public sector net borrowing - often used a key indicator for a government's deficit - reached £157 billion in 2009/10 and has continued to fall lower over the years with the government aiming for a deficit of no more than £120 billion this financial year.
The Organisation for Economic Co-operation and Development (OECD) remains optimistic on the U.K.'s prospects, significantly upgrading its growth outlook on the country in a November report. A business survey by Lloyds Bank on Monday said that confidence in the sector has hit a 20 year high, fueling hopes of continued growth in the first half of 2014.
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The prospects are high but Osborne has refused to offer the "job done" victory speech, instead urging voters to give him another term in government to "finish the job".
"I'm confident about the improvement we are seeing in the economy, but we've got to stick to that plan," he said.
"There is still a long way to go – and there are big, underlying problems we have to fix in our economy."
—By CNBC.com's Matt Clinch; Follow him on Twitter