BRASILIA (Reuters) - Brazil’s President Jair Bolsonaro said in a TV interview that his government would raise monthly payments under a popular welfare program to 300 reais from 190 reais starting in December. If confirmed, the 58% rise announced by Bolsonaro in an interview with the Record TV channel late on Tuesday would be far higher than one under consideration at the Economy Ministry and put Brazil’s public finances back under the microscope. Officials had indicated that the ‘Bolsa Familia’ program could be raised to 250 reais, but Bolsonaro, whose popularity has plummeted during the coronavirus crisis, said the increase was necessary to compensate for food inflation. Bolsonaro is preparing for re-election in October 2022. The Economy Ministry declined to comment, but a source in the economic team said that the government ‘spending cap’, widely seen as its main fiscal anchor, will not be under threat. “It won’t pierce the ceiling, that’s a given. Let’s see what the best thing to do is. The program is under construction,” the source said. The rule dictates that public spending cannot rise by more than the previous year’s rate of inflation. Brazil’s budget deficit and debt dynamics have improved in recent months thanks to record tax receipts, a stronger-than-expected economic recovery, and inflation. The cap was not breached last year or this because the pandemic-fighting spending splurge was emergency expenditure and not subject to the usual budget rules. Current annual inflation of 8% gives the government more leeway to increase spending next year without breaching the cap, perhaps as much as 124 billion reais ($25 billion) extra, economists at Barclays calculate. They estimate that a rise in the monthly stipend to 300 reais and no increase in the number of recipients would cost the government an extra 15 billion reais. If it were to rise to 300 reais for 27 million people instead of 14 million now, as some reports have said Bolsonaro wants, the annual cost would almost triple to 97 billion reais from this year’s budgeted 35 billion. “The discussion for 2022 is unlikely to be about the risk of breaching the spending cap, but rather how the significant space created by higher inflation will be utilized by the government,” the Barclays economists added. ($1 = 5.0428 reais) Reporting by Eduardo Simoes in Sao Paulo, Rodrigo Viga Gaier in Rio de Janeiro, Jamie McGeever in Brasilia, Writing by Carolina Mandl and Jamie McGeever; editing by Jason Neely Our Standards: The Thomson Reuters Trust Principles.