The latest round of MPs' expenses revelations shows Jacqui Smith charging her husband's top-of-the-range iPhone using taxpayers' money.
Documents also appear to show she then began claiming the costs of the couple's monthly mobile phone bills.
She claimed for 90% of the cost of the calls, because she said 90% of the calls made by her husband Richard Timney would be in relation to his work as her constituency office manager.
The Daily Telegraph reported that Smith wrote a letter to the Commons fees office in January last year saying, "Until now I have not claimed for the use of my mobile phone, nor that of Richard Timney I should like to claim for both phones from now on and backdate the claim to the start of this financial year.
"I would estimate that 90% of the costs are related to my work as an MP I hope that this estimation is acceptable."
A receipt from a phone shop in Redditch, her constituency, showed the home secretary claimed £242.10 of the £268 cost of the phone.