Rather large error on mine and my husbands part. When the new rule came in a few years ago about the £50.000 earnings and child benefit, we were fine as I wasn't working and his wage was about £48,000. Never gave it a second thought after that, and I've continued to have the payment for 2 children paid into my bank account every month. Unfortunately, my husband has had a couple of pay rises taking him over the £50k. I only work part time so my contribution is immaterial. Only just realised from a solicitor friends post on Facebook that we should have filled a self assessment form out and sent it to to the Tax office. My husband thought it would have been taken automatically out of his PAYE, but it's not . We have worked out we have probably been over paid by about £4K!!!! Up sh** creek without a paddle comes to mind. Has anyone else been in this position? How long can you pay it back over? We've not got any savings as our living costs are rubbish (and we're obviously useless!!) 😕