There are a few options available to you. Firstly, you could invest the money in a top rate easy access savings account. This type of account offers instant access to your money without notice or loss of interest. Alternatively, notice accounts are offering equally as good rates but you must provide 'X' amount of days notice to avoid losing any interest. The amount of notice will vary from account to account but is usually 30, 60 or 90 days.

In addition to the these options you could invest £3,000 into a mini cash ISA which is tax free and invest the remaining £10,400 into one of the accounts mentioned above.

I wonder if you could advise me on the best way to invest a lump sum for a short limited time. I have £13500 to invest but only until next March and I am looking at savings accounts or some form of investment which will give me the best return / interest on this amount. I need to be able to withdraw the initial £13500 in March 2007.
Your advice would be greatly appreciated and trusted as so far your information and website has saved me hundreds on insurance policies. Thank you very much.
Helen