* Yen hits lowest in nearly 4 years vs dlr, 3-yr low on euro
* Profit-taking later helps weigh on dollar/yen
* Talk of dollar offers near 100 yen, stops and offers above
By Masayuki Kitano and Ian Chua
SINGAPORE/SYDNEY, April 9 (Reuters) - The yen pushed deeper into multi-year lows against the dollar and euro on Tuesday as the market saw every reason to sell the currency with the Japanese central bank on a warpath to battle deflation.
The dollar rose to as high as 99.67 yen on trading platform EBS, the greenback's strongest level versus the yen since May 2009. The dollar later pulled back on profit-taking and last stood at 99.23 yen, down 0.2 percent on the day.
The euro hit its highest since January 2010 against the yen of 129.935 yen. The euro last changed hands at 129.48 yen, up 0.2 percent from late U.S. trade on Monday.
Since the Bank of Japan (BOJ) unveiled a massive stimulus programme last Thursday, the dollar has climbed roughly 7 percent against the yen.
"For USD/JPY, upside momentum remains strong and an eventual test of 100.00 seems in the cards," said Vassili Serebriakov, strategist at BNP Paribas.
"Markets are increasingly focussed on the notion that larger JGB purchases at longer maturities by the BOJ could push Japanese domestic long-term investors elsewhere."
In a research note, analysts at JPMorgan noted that Japanese households hold 55 percent of their financial assets in deposits and cash, compared to 14 percent in the United States and 36 percent in the euro zone. They added that Japanese life insurers hold 140 trillion yen in Japanese government bonds (JGBs).
According to BOJ data, Japanese households held 1,547 trillion yen in financial assets at the end of 2012, including 854 trillion yen in cash and deposits.
Even the thought that some of this cash may flow abroad is lowering yields across the globe and pushing down the yen.
"I get the sense that the dollar could rise to about 110 yen this year, and about 105 yen in three months' time," said a trader for a Japanese bank in Bangkok, adding that the actions of Japanese institutional and retail investors were a focal point.
Still, the yen found some support on Tuesday as market players sold the dollar to lock in profits, traders said.
Separately, there were options-related dollar offers at levels below 100.00 yen, said the trader for a Japanese bank in Bangkok. While stop-loss dollar buying was likely to emerge if the greenback rises above 100.00 yen, dollar offers were also lurking above that threshold, he added.
One possible technical resistance for the dollar lies at about 99.73 yen, which is the 50 percent retracement of the dollar's drop from a June 2007 high of 124.14 yen down to a record low of 75.311 yen set in October 2011.
Underscoring the Japanese currency's weakness, commodity currencies touched multi-year highs against the yen on Tuesday, with the Australian dollar hitting its highest since July 2008 at about 103.80 yen and the New Zealand dollar rising to its highest since February 2008 at about 84.49 yen .
Earlier, the Australian dollar edged higher after data showed China's annual consumer inflation eased to 2.1 percent in March from February's 3.2 percent, leaving Chinese policymakers room to keep monetary policy loose to support an economic recovery.
After giving back some of its gains, the Australian dollar fetched $1.0431, up 0.2 percent on the day.
Elsewhere, the euro rose 0.3 percent to $1.3046. The euro hit a three-week high of $1.3068 earlier after triggering some stop-loss buying at levels near $1.3050.