mistaken credit into my account

[kikgirl80]

If I believe that a firm has paid money into my account that does not belong to me (it may well do !), is there period of time after which I am entitled to the money?

[Mrs_Pegasus]

I am confident there is no actual time limit.

Contact them and ask, I know I would because there is always that chance they will ask for it back. 

[Loosehead]

This often get's asked, there is no limit they'll realise at some point and want it back.

[stevie21]

No, if it's not your money, it's still not your money in a year's time.
Similarly, if you use your debit card and the money doesn't go out of your account for 9 months, then you're not off scott-free. The company can take it, without warning, at any time at all. Just had the pleasure of this conversation today :-(

[Andy008]

Immediately move it into another account and keep quiet for a couple of months.

Last year I finished a 3-month job with NatWest. They kindly paid me an extra �600 for a month's part-time work, and only realised when I stupidly called to ask for my P45, which was already being processed...

The moral of the story is to be extremely discreet.