(Bloomberg) -- The Bank of Japan is almost certain to cut its inflation forecast for the fiscal year starting in April given the sharp fall in oil prices, according to people familiar with the matter.

The government’s decision to make pre-school education free adds to the case for the downgrade, which will be delivered at the end of the next board meeting on Jan. 23, the people said. Looming cuts to mobile phone charges darken the picture but are hard to quantify, they said.

There are no indications that monetary policy will be changed at the gathering because these pressures are seen as temporary and don’t change the picture of underlying inflation, according to the people.

The BOJ’s current forecast is for inflation to average 1.4 percent next fiscal year, a figure that private economists judge to be overly optimistic. Oil prices have dropped about 20 percent since the last quarterly outlook report in October.

The size of the downgrade can’t be gauged until board members provide their estimates at the meeting next week.

The central bank will continue to closely monitor the price views of companies and consumers to see if the transitory factors affect inflation expectations, some of the people said.

The BOJ will also consider whether it needs to upgrade its growth forecast for fiscal 2019, taking into account measures planned by the government to offset the impact of a planned sales-tax hike in October, the people said.

The measures, including a temporary bonus point system for cashless payments and reduced taxes on big ticket items, will support the economy, but the BOJ also needs to weigh them against risks to the global economy, according to the people.

The government estimates in its economic outlook that the free pre-school education measure will cut overall consumer prices by 0.3 percentage point.

--With assistance from Yuko Takeo.

To contact the reporters on this story: Toru Fujioka in Tokyo at tfujioka1@bloomberg.net;Masahiro Hidaka in Tokyo at mhidaka@bloomberg.net

To contact the editors responsible for this story: Brett Miller at bmiller30@bloomberg.net, Paul Jackson

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