Starmer was updated 'at the earliest opportunity' on Rayner's tax affairs - No 10published at 12:41 BST 4 September
There have been questions over what the PM knew and when regarding Angela Rayner receiving legal advice saying she had underpaid stamp duty on her Hove property.
A Number 10 spokesperson says Keir Starmer had been kept informed "as appropriate" about Rayner's actions over her tax affairs.
"As soon as that final legal opinion was received by the Deputy Prime Minister on Wednesday morning she immediately took steps to self-refer herself to the IA (independent adviser), and she updated the Prime Minister at the earliest opportunity as well," the spokesperson adds.
Asked if Starmer believes Rayner had been transparent with him, the spokesperson refers to the prime minister's comments yesterday when he said she had gone "over and above" when it came to setting out her personal circumstances.