The UK and Japan hope to agree the details of a post-Brexit trade agreement by the end of the month.
The two sides said they had made progress during two days of face-to-face talks in London.
Japanese Foreign Minister Toshimitsu Motegi said there was "substantial" agreement in most areas.
And the UK's Liz Truss said there was a "consensus" on extending Japan's current trade standards with the EU in financial and digital services.
Earlier on Friday, there were reports that agriculture remained the last remaining obstacle to be overcome.
After leaving the EU on 31 January, the UK is having to negotiate its own trade agreements with many of the world's leading economic powers, including the US.
But while an agreement with the US is unlikely to be completed this year, talks with Japan - the UK's fourth largest trading partner outside Europe - are more advanced.
A deal could ultimately increase the UK's trade with Japan by about £15bn a year.
Both sides are keen to get a deal in place before the end of the year, when the UK's post-Brexit transition period expires. If there is no agreement by then, UK-Japanese trade will default to World Trade Organisation rules.
This could result in significant tariffs on imports and exports and other trade obstacles.
The deal being negotiated is likely to mirror Japan's 2019 agreement with the EU in many areas, including the automotive and luxury goods sectors.
But the UK has been pushing for much greater access in services and e-commerce.
Mr Motegi said the two sides had agreed to accelerate talks with an aim of reaching an outline agreement by the end of August.
And Ms Truss, the International Trade Secretary, said their first face-to-face meeting since the process began in June had been positive and productive.
"We have reached consensus on the major elements of a deal - including ambitious provisions in areas like digital, data and financial services that go significantly beyond the EU-Japan deal," she said.
"Our shared aim is to reach a formal agreement in principle by the end of August."
While the UK believes this "ambitious" target can be met, it continues to insist that the final agreement must work for all four nations.
According to British government figures, trade between the two countries totalled £31.4bn last year, with 9,500 UK-based businesses exporting goods to Japan.
Japan is also one of the largest foreign direct investors in the UK.