Elon Musk has notified co-investors who committed to help fund his acquisition of Twitter that he plans to close his buyout of the social media business by the end of the week, according to a person familiar with the matter.

Equity investors, including Sequoia Capital, Binance, Qatar Investment Authority and others had received the requisite paperwork for the financing commitment from Mr Musk’s lawyers, the source added.

The move is the clearest sign yet that Mr Musk plans to comply with a Delaware court judge’s deadline to complete the transaction by Friday (US time).

The banks that committed to fund Mr Musk’s buyout of Twitter have finished putting together the final debt financing agreement and are in the process of signing the necessary documents, according to a Bloomberg News report.

Mr Musk pledged to close the deal on a video conference call on Monday with bankers who are helping fund the deal, according to the report.

Twitter declined to comment. Mr Musk’s lawyers were not immediately available for comment.

Twitter shares jumped on the news and were trading up 3.0 per cent at $US52.95 ($A82.84) on Tuesday, closer to Mr Musk’s offer price of $US54.20 ($A84.79).

Mr Musk has pledged to provide $US46.5 billion ($A72.7 billion) in equity and debt financing for the acquisition, which covers the $US44 billion ($A69 billion) price tag and closing costs.

Banks, including Morgan Stanley and Bank of America Corp, have committed to provide $US13 billion ($20 billion) of debt financing to support the deal.

Equity investors, including Oracle Corp co-founder Larry Ellison and Saudi Prince Alwaleed bin Talal, will pitch in with $US7.1 billion ($11.1 billion).

The closure of the deal will put to rest months of speculation that the erratic entrepreneur would abandon the takeover.

Mr Musk has touted himself as an advocate of free speech and has been critical of Twitter’s approach to monitoring violent or hateful content, which has led to bans on many prominent conservative voices.