The Brazilian hosts are trying to find the money to make up for poor sponsorship and ticket sales, to help get Paralympians to the games and ensure services there are up to scratch.
With the opening ceremony now less than three weeks away, organisers still haven't paid travel grants, totalling more than 10 million dollars, to the 166 Paralympics Committees around the word.
They were due two weeks ago and the Chief Executive Officer of the Australian Paralympic Committee, Lynne Anderson, is hopeful they will be paid by the end of the month.
"Look, I think it's important for all of us because clearly everyone budgets for it over time, but in terms of getting our team there, our team is basically there already, the accommodation, flights etcetera has all been booked," Ms Anderson said.
"Some of the teams are already on the way, en route, at various staging camps so for us, it's quite good. For some of the smaller countries, it's obviously a real worry and they're the ones everybody is concerned about."
About a third of the participating countries say without the grants they won't be able to send their athletes to Brazil.
Ms Anderson said while that would be a dreadful outcome she is confident it won't come to that.
"One of the pillars that the International Paralympic Committee is very strong on is what they call universality, where they try to have as many countries as possible," she said.
"So that would be really drastic and I'm certain that all stops will be pulled out to make sure that doesn't happen."
Melbourne javelin thrower Madeline Hogan will be competing for her third Paralympic medal in Rio after winning bronze at both Beijing 2008 and London 2012.
While she had great success on the athletics field, she also said the services away from it were exceptional.
"In Beijing, obviously that was a real eye opener for me. It was my first international competition, services at Beijing were fantastic," she said.
"Again at London, they were phenomenal. To me London was the pinnacle, in terms of what was provided and what was there for us as athletes and the support we received - it will be interesting to see what Rio can do."
In Rio, crisis talks are underway, as well as a challenge to a legal ruling blocking organisers from using public money.
A judge ruled late last week that the federal government and the city of Rio de Janeiro could not provide the 110 million Australian dollars required.
"The most urgent issue that we need to solve is ... the travel grant because a lot of Paralympic NOCs need this money to fly their athletes in," 2016 Rio Games Spokesman, Mario Andrada, said.
"So, the first priority even before the appeal we are working on to determine how much money is needed for the travel grant and how soon can we offer this to the Paralympic NOCs."
He says intelligent cuts will have to be made, because of a shortfall in revenue expected from sponsorship and ticket sales.
So far, only 12 per cent of the 2.5 million tickets available have been sold.
It's understood organisers are considering reducing official transport for media and athletes, the number of paid staff and volunteers, and food availability.
Ms Hogan said that while accommodation, food and transport are essential for things to run smoothly, beyond that she is more focused on how she performs.
"Every now and then I think about the services and the support we'll receive over there, but at the end of the day ... I can't let that cloud what I do in the gym and on the track," she said.
"As the majority of Australian athletes will tell you, it's really business as soon as we're there on the ground. It's about doing what we can do and competing to the best of our abilities. So at the end of the day, if there's a javelin and some green grass, I'm going to leave it out there on the field."
The opening ceremony of the Rio Paralympics is on September 27.
