Jade Goody’s marriage to Jack Tweed could have saved her two sons an inheritance tax bill of more than £1 million.

Had Jade not married Jack last month, her estate, estimated at £3 million, would have probably been passed directly into trust for her sons Bobby, five, and Freddie, four, an expert said.

Jade earned about £1 million in the months before she died, insisting that she wanted the money to go to her sons so they could enjoy the upbringing she never had.

But according to Andrew Kirby, a senior trust and tax manager at Moore Blatch Solicitors, her marriage to Jack Tweed could have saved that sum alone by avoiding inheritance tax.

If Jade had not married Jack, Freddie and Bobby’s trust would have been liable to 40 per cent tax on more than £2.68 million of her estate, landing it with a bill of £1,075,000.

The 27-year-old Big Brother star’s wedding to Jack just four weeks before she died from cervical cancer means the money can be passed on through him as a surviving spouse.

This does not mean 21-year-old Jack has any rights to the estate, as it can still be controlled by the trustees acting for Freddie and Bobby, said Mr Kirby.

Mr Kirby said: “I have no doubt Jade’s marriage to Jack was genuine, but the additional benefit is that Jack can now be used as a conduit by Jade’s trust.

“You have to ask whether it is politically right that a five and four-year-old who have lost their mother to a terminal illness should pay such a large tax bill. The way round it is to arrange a death-bed wedding.

“The trustees might even insure against Jack’s life in case he died before the money was passed over.”