A total of 156,000 asked to start payment plans in July, with weekly sign-ups during the month double the average for the first six months of 2014.
The uptick comes after Equitalia revamped its system, making it easier for Italians to pay their debts, the tax collection agency said.
Roberto Diaferia, a Milan-based tax adviser, agreed the change has had an impact: "The possibility to pay taxes with installments has been greatly appreciated because the procedure has been simplified, it can work almost automatically."
Equitalia steps in one or two years after Italians have failed to pay their taxes, with people invited to pay immediately, within 60 days or request a payment plan, Diaferia said.
"There is also the possibility in the plan to miss payments eight times before it is revoked," he said, making it more flexible for people who may be struggling financially.
A total of 2.4 million instalment plans have been set up with Equitalia so far, with a total value of €26.6 billion. The majority of these - 70.8 percent - of these are for small sums of less than €5,000. Just over a quarter (26.2 percent) are for tax bills ranging from €5,000 to €50,000, while 2.9 percent are for those who owe more than €50,000.
The payment plans have proved most popular in the northern Lombardy region, where Italians have agreed to pay €5.5 billion through 385,000 accounts. Lazio came second, with 305,000 accounts amounting to €3.7 billion.
Despite Italians being reputed as Europe’s worst tax dodgers, Diaferia told The Local most people are keen to pay their bills.
"I work in Milan and as far as I can see the attitude to paying taxes has always been positive," he said. "Many people prefer to delay but they do not want to avoid paying taxes.
"You can divide tax dodgers in two. There are 'necessity' tax dodgers, small companies and all the people who are obliged not to pay or delay in order to pay employees and suppliers. Then there are the tax fraudsters, this is completely different."
The Italian government has recently stepped up efforts to see citizens pay their way. In January the financial police said 12,726 tax evaders had been reported in 2013, up from 11,769 the previous year. More than 8,000 people paid no taxes last year, running up a bill of €16.1 billion, while other forms of tax evasion cost the state €20.7 billion.