The fund, founded in 2009 by Prime Minister Najib Razak, is teetering on the brink of collapse amid multiple investigations around the world into allegations that billions were looted from it.
Najib also has been under pressure over USD 681 million that he received from overseas in 2013.
A statement issued by the central bank, Bank Negara Malaysia, did not specify how much money 1MDB had been ordered to repatriate.
As questions swirl around billions of dollars moved around the world by 1MDB, Bank Negara has said the company failed to prove the ultimate use of the money or comply with previous instructions to repatriate the USD 1.83 billion.
The bank's order requires "1MDB to repatriate monies remitted abroad", it said, adding that the company has "failed to submit evidence and documentation specified by the bank to justify its inability to fully comply with the repatriation order".
1MDB, whose advisory board is chaired by Najib, earlier this week defaulted on a USD 1.75 billion bond issue after missing a USD 50 million interest payment, triggering fears that the government will have to step in and bail out 1MDB, which could rattle markets and hurt Malaysia's credit rating.
1MDB, which ran up more than USD 11 billion in debt in a series of much-questioned investments, has steadfastly denied money was stolen or that it was in financial trouble.
Najib was plunged into the crisis last year when the Wall Street Journal revealed USD 681 million in transfers to his personal bank accounts.
He claims the money was a gift from the Saudi royal family, most of which he returned. A Saudi official recently said that was true, but only after weeks of silence that cast doubt on the claim.
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