While the public is generally not allowed to claim the cost of employing accountants to fill in self-assessment tax returns, many MPs have been criticised for submitting the bills as part of their parliamentary allowances.
Mrs Keeble, Labour MP fo
r Northampton North, confirmed the disputed claims were submitted in 2004 and 2007 and related to work carried out by Dennis Bates, the husband of Labour MP Meg Munn.
Cabinet ministers in the firing line for using the same firm include Foreign Secretary David Miliband and schools minister Jim Knight.
But Mrs Keeble added: "This firm is very well known within Westminster and is used widely. I have used it on other occasions for work which has not been claimed for.
"All of the details have been published on my website and so there is no secrecy surrounding the claims. It is only right that they are open to public scrutiny."
According to the details listed on Mrs Keeble's expenses forms, she received £846 in 2004 for "preparation of your tax return for the year ended April 5 2004". A claim for a similar amount was also made in 2007.
Keen to move on from the expenses scandal, MPs have now called for wide-ranging reforms of Parliament. Mrs Keeble backed Tory leader David Cameron's call for fixed term parliamentary sessions, which would reduce executive power by preventing Prime Ministers from choosing their own election dates.
She said: "I think that is very important. I have just spent a week in the States and, while their system has its flaws, it has clear checks against the power of the executive and the legislature.
"Our system has become very outmoded and out of touch with the ordinary working environment, and we need to get back to that.
"We also need to address the problem of parliamentary recesses.
"The idea that we all pack up and close down Parliament for three months every summer is madness."
Meanwhile, Conservative MP for Northampton South Brian Binley has said his expenses would not be listed on his website before a public meeting on the matter is held in the town on Friday.
He said hard copies would be available at the meeting, at the Conservative Association in Billing Road, starting at 7pm.