If my khums year is coming up but I have some payments to make after my khums date.

For example, if my khums date is 1st of Rajab but then there's some stuff I have to pay for after 1st of Rajab, can I leave out the amount of money I need to pay for these stuff then count how much khums I have to pay?

For instance, I have 10,000 that I need to pay khums on, but I need about 1,000 for the things I need to pay for, can I just take out that thousand dollars and pay khums on the 9,000?

You can't take away that money you have to give khums on time