Submitting a tax return is not a straight forward affair, if you have more than one source of income.

Your Private Practice and an NHS salary would mean that you have more than one source.

Your Accountant will advise you when the tax year ends, when the tax return is to be submitted, and when they need the final information from you.

If you leave it too late and your tax return is submitted late, or you are unable to pay the tax bill, there are significant penalties.