Newcastle's Saudi owners have baulked at a £12million survival bonus - payable to United if they stay in the Premier League - on top of a £2.5m loan fee and Lingard's £100,000-a-week wages.
United's demands would take the potential cost of the deal to £16.5m, the equivalent of £1m-a-week over the four-month loan.
Jesse Lingard is furious with Manchester United after they denied his loan move to Newcastle
He's keen to leave on loan by the end of the transfer window but United's demands are too high
Newcastle are Lingard's preferred