Just roughly how much tax i will need to pay i have the spreadsheets already done i just want a simple calculator which will tell me roughly what i owe 

Just roughly how much tax i will need to pay i have the spreadsheets already done i just want a simple calculator which will tell me roughly what i owe 

May I add if this is your first year, and your tax bill comes to over ?1,000 you will have to pay an extra 50% on top of that because you have to pay upfront for the following year

E.g. If your tax bill comes to ?2,000 you will have to pay an extra ?1,000 on top in Jan so that's a total of ?3,000. You will then have to pay another ?1,000 in July.
So when you get your tax bill it will say ?4,000 in total.

I hope that isn't too confusing but many people forget that in their first year and are shocked.
Although you will then have ?2,000 on account so when the next year tax bill comes, that is deducted. And you do the same again year after year.

I suggest working out your profit... putting it into the gov calculator and then working out 50% and adding it onto your Jan bill and bear in mind you will have to pay that 50% amount again in July