Do I have to let tax credits know I'm on mat leave

[Ihaterapmusic]

We don't recieve payments as dp. Alone earns too much.. But because we did claim last yr they keep it open.
I have full pay for 3 months then smp do I still need to. Ring them so it's on the system? Even though earnings will still be over threshold ( unless his business makes a loss

You're still classed as working while on paid mat leave so I don't believe you have to tell them as nothing has changed as such. Bear in mind though that you can disregard 100 a week of income from mat pay, so your estimated income for this year will be lower. Probably won't make a difference if your earnings are way over threshold anyway, but just remember when it comes to your renewal :)