An Oxfam tweet linking benefit cuts to poverty could have been "misconstrued as party political campaigning", the Charity Commission has said.
The charity put out a tweet in June speaking of a "perfect storm" caused by "zero hours contracts, high prices, benefit cuts and unemployment".
The watchdog said Oxfam "should have done more to avoid any misperception of political bias".
Oxfam said it had reviewed its social media policy as a result.
The tweet was put out to promote an Oxfam report, called Below the Breadline, which warned of the "relentless rise of food poverty" in the UK.
The Commission launched an investigation following a complaint by Conservative MP Conor Burns.
At the time, Mr Burns said he was "shocked" by the "overtly political" campaign. "I cannot see how using funds donated to charity to campaign politically can be in accord with Oxfam's charitable status," he said.
BBC News - Oxfam criticised by charities watchdog over poverty tweet
Too close to the truth for him, his party and what they've done.
The charity put out a tweet in June speaking of a "perfect storm" caused by "zero hours contracts, high prices, benefit cuts and unemployment".
The watchdog said Oxfam "should have done more to avoid any misperception of political bias".
Oxfam said it had reviewed its social media policy as a result.
The tweet was put out to promote an Oxfam report, called Below the Breadline, which warned of the "relentless rise of food poverty" in the UK.
The Commission launched an investigation following a complaint by Conservative MP Conor Burns.
At the time, Mr Burns said he was "shocked" by the "overtly political" campaign. "I cannot see how using funds donated to charity to campaign politically can be in accord with Oxfam's charitable status," he said.
BBC News - Oxfam criticised by charities watchdog over poverty tweet
Too close to the truth for him, his party and what they've done.
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