If you are self employed/run your own one person business and pay yourself a wage.
How do you prepare for your tax bill?
Do you put x amount aside each month? Do you try to estimate ahead and try and have a set amount waiting in the sidelines? You might earn more or less than you estimated, do you work it out monthly?
Or do you have an accountant to advise you ?
Sorry if it's a silly question but I'm not well versed in these matters.