My partner is moving in at the end of the month. I’m so nervous about telling tax credits and I don’t know why! His income will be over the limit so I need to cancel my claim. How do I do it? Just online or ring up? Do I just say I want to cancel my claim and the date he moved in? They won’t need his income details etc will they? I don’t want to try and claim again. If I cancel it will they grill me on the reasons etc?