Spain replaced Greece, Ireland and Portugal as the main focus in the euro zone debt crisis earlier this year after its crippled banks, highly-indebted regions, a second recession in three years and soaring debt unnerved investors.
Since then, the country's borrowing costs have reached levels deemed unsustainable in the long run, raising the prospect of a second aid programme for Madrid following the €100bn lifeline it obtained for its banks in June.
"We're moving, we're taking steps, we're preparing it, things will crystallise in November," said a senior official who is directly involved in talks about a potential Spanish aid.
The official spoke on the condition of anonymity because of the sensitive nature of the discussions.
Asked to clarify if this meant an aid request was expected in November, he said : "I am confident this will happen then, in November."
A second senior source also pointed to November as the most likely time for a move from Madrid.
"If I had to bet, it would rather be in November than in October, if ever. Then it would be a package - you would have Greece and Cyprus and Spain. I think not Slovenia," one senior eurozone official said.
"The is because the Germans and others do not want to go many times to national parliaments and have painful, tortuous debates there," he said.
Public opinion in Germany, as well as in Finland and the Netherlands has grown increasingly opposed to bailouts of eurozone governments. A sovereign bailout for Madrid would need to get parliamentary approval in Germany and Finland.
A third senior eurozone official, who discussed the matter with German lawmakers, said they would not be convinced to vote in favour of a rescue "unless it was a matter of life and death."
He also said German chancellor Angela Merkel and her finance minister Wolfgang Schauble believed they had only "one more shot" with their parliament to shore up the eurozone.
Spain has enough money to survive a redemption peak towards the end of October when it would need to pay back €29.5bn (£23.7bn) worth of debt.
But, eventually, it would need to borrow at more sustainable rates than the current level near 5.8pc-6pc at which the benchmark 10-year paper trades.
A Spanish government official said the Treasury was fully funded until the end of the year. "We could even stop issuing debt," the official said.
But January looks challenging with Spain's deficit targets likely missed, additional funding needs created by falling tax revenues and support to indebted regions and a refinancing hump of €19bn that month.
The situation will not get better through the year with Spain's gross debt needs reaching €207bn in 2013 compared to €186bn in 2012.
Pressure is growing on Spain to apply for financial help from the eurozone's permanent bailout fund, the European Stability Mechanism (ESM), because this would allow the European Central Bank to step in with massive Spanish bond purchases on the secondary market, that would lower Madrid's borrowing costs.
Italy's Prime Minister Mario Monti, whose country could be the next candidate for a bailout if Spain unsettles investors, said on Friday that a Spanish request for support would calm financial markets.
Privately other senior officials agreed a request from Madrid was probably inevitable.
"It is not helpful that Spain is waiting. We have a framework and they would be better off, safer, if they would use that framework. It is a bit of a loss of time," a third senior eurozone policy-maker said.
While Spanish policies were generally on the right track, it was dangerous to defy market expectations that the ECB would be able to buy Spanish bonds.
"I would expect them to ask. It is not a question of policy-making in Spain. It is a question of market dynamics. Now that the framework has been announced, it has to be used," the official said.
He said Spain was delaying the request because it had engaged into a game of chicken with Germany and other countries.
Behind the scenes, however, talks continue about the form a programme would take.
EU Economic and Monetary Affairs Commissioner Olli Rehn told Reuters in an interview on Friday that, were Spain to ask for help, it would most likely use a precautionary credit line, money from which could be used to buy bonds at primary auctions.