In feb 2010 i estimated my income for tax year ending 2010.
I declared my income in May 2010 from the p60 i received for tax year ending 2010.
I forgot to inform tax credit of £69 taxable income from mileage allowance for tax year ending 2010. (this amount wasn't on my p60)
Can i still inform them of this amount as the payments i am currently receiving is based on my income for tax year ending 2010?
Will i get fined/penalty for not declaring this sooner?