More than £400,000 could be spent on Perth’s bid for the City of Culture crown.
Councillors already set aside £250,000 to launch the ambitious campaign at an historic meeting last year.
Now they will be asked to approve extra funding of £150,000.
The money will be partly used to employ two people to help spearhead the Perth2021 campaign and work on securing external financial support.
More details of the bid and how it will be funded will be revealed at the next full meeting of Perth and Kinross Council on Wednesday.
Enterprise and infrastruture convenor John Kellas has insisted that, win or not, the money will be well spent.
“Closer examination of the scale of the opportunity has shown that the best way to ensure that Perth and the whole of Perth and Kinross derives the maximum benefit is by ensuring we have the capability and expertise to take the bid forward,” he said.
“This is singularly important as we identify there is long term opportunity for all our businesses.
“There is also a substantial opportunity to showcase Perth and its cultural offer to the rest of the world.”
Mr Kellas added: “Should the bid be unsuccessful there will remain an infrastructure, legacy and focus that will benefit many future generations who will reflect that this was a pivotal point in our history.”
The council is still waiting for the UK Department for Culture to announce its criteria for submissions.
In a report Fiona Robertson, the local authority’s head of culture, said Perth hopes to finalise its bid by April, next year.
She said: “The experience of other cities who have bid for UK City of Culture demonstrates the benefits of competing for the title.
“All cities who have taken part in these competitions have had significant sustainable benefits as a result of the process.”
She said: “A point of difference between Perth and most other bidding cities is its smaller scale and location, and the potential to build new connections between the city and our rural and remote communities.
“A significant bid objective is to challenge the assumptions and stereotypes about audiences for culture, by showing how the UK City of Culture title can make culture part of the fabric of everyday life, to be enjoyed by the many not the few.”
Ms Robertson added: “Competition will be fierce.The process is not just about winning: It is about catalysing the wider transformation we want to see for our area.”
The bid document will set out proposals for culture programmes and projects to be delivered between now and 2021, and beyond.