Anyone know about tax rebates when emigrating?

Your tax rebate is based on how much you've already paid over the year compared to the allowances for the year. They take tax working on the assumption that you'll continue to earn what you've already been earning, so if you leave during the year you'll get some back. The actual amounts are not enough for you to change any dates for.

The revenue will give you a form whereby you state / prove that you won't be back in the country or earning any money in this country. If they're not convinced you're emigrating you'll get the refund at the end of the year.

Here's the relevant form /guidance/get-your-income-tax-right-if-youre-leaving-the-uk-p85

That's great, thanks tumbleweed, I have a copy of the form already but was waiting for my visa to come back before deciding on a date and filling it in - I was just not sure whether this information from my friend had any relevance.

? again

Tax rebates are generally payable as long as :
you have paid tax in the year and
you are leaving before the end of the tax year
you declare that you plan to be away for at least one whole tax year.

Every tax payer is entitled to earn around 5000 GBP pa before paying tax (not sure of exact figure). Govt assumes you will work 52 weeks, so this is then allocated evenly across all weeks as an allowance of approx 90quid per week. Of course if you leave in Nov, you still have 16 or so week's worth of personal allowance owing....when you will not be earning, but the tax office have assumed you will.
Also if you pay higher rate tax, you might fall into lower bracket due to shortened year, so there might be some rebate there.

Still not huge amounts of money, so don't plan luxury living on the rebates!!!

When you move, make sure you file for dual taxation relief and split year treatment the first year!

This essentially means that you only get takes on your UK income for the time you are int he UK and your overseas income for the time you are over there. Especially important if you have rental income from the UK.