Last year my OH was self employed and I worked part time. This year from April he took a temp job and I went on mat leave from Aug. I thought our annual income would be around about the same so I didn't report any changes. We have a disabled daughter and I understand that this exempts us from the rules re hours. However, I now believe our annual income may have increased by £6k partly due to some back pay I got which not expecting. I am worried to report this change now as worried will get a fine and also worried they will stop future tax credits as unsure how much difference this will make. I'm also still not 100% on figures for my income as on mat leave. do I report now or wait for renewal or at least until know my annual income?