If your FTB has increased it could be that the payments have increased to keep up with inflation etc - payments increase a couple of times a year to keep up with the indexed price of living (probably not the best way to describe it but my brain is fried at the moment ). We received 2 statements about FTB in the last fortnight - neither have had an income change but the second was showed our FTB had increased despite both being for the same payment dates. Does that make sense?