One more quick question: So basically B doesn't count if he didn't make the 18600 and we start at square one with the new job? Even if I have the amount needed to cover the difference (I know someone said you need 2.5 times the difference and the first 16000 GBP doesn't count but I still have that).
Yes, if he hasn't earned at least £18,600 in the previous 12 months, then you can't apply under Category B and he will have to wait 6 months until you can apply under Category A.
Your savings can only be used to top up the income from the new job, they can't be used to make up the past earnings of £18,600 in the last 6 months. It's true that the first £16,000 don't count and then you also need 2.5 times the difference between his salary and £18,600 on top of the £16,000.
So, for example:
Category A:He started a new job in January 2014. He has been with the employer for more than 6 months, but he only earns £15,000 per year. In that case, you can use your savings to make up the difference, but you will need £25,000 in savings, which have been in your account for 6 months before applying (£16,000 + (2.5 x £3,600) = £25,000).
Category B:1) He started a new job in July 2014. He has NOT been with the employer for 6 months yet and he only earns £15,000 per year. In that case, you can use your savings to make up the difference, but you will need £25,000 in savings, which have been in your account for 6 months before applying.
2) He has also earned £20,000 in the last 12 months
He meets both criteria for Category B, so he can apply now.
Category B:1) He started a new job in July 2014. He has NOT been with the employer for 6 months yet and he only earns £15,000 per year. In that case, you can use your savings to make up the difference, but you will need £25,000 in savings, which have been in your account for 6 months before applying.
2) He has only earned £12,000 in the last 12 months.
He can meet the first criteria for Category B using your savings as well, but he cannot meet the second criteria, so he can't apply under this category and will have to wait until he has been in the job for 6 months to apply under Category A.