I separated from my husband in April 2015, but due to various life messiness I had not informed the tax office up until now. I have been working as self-employed since May 2015, but prior to that I had a government job. I've just come off the phone with HMRC who informed me that now that they know we are separated, they have interrupted the joint claim, and will likely send me a letter re overpayments since April 2015. I can reapply as a single claimant, however I have just calculated how much I would be entitled to on their website and it seems a lot less than with the joint claim! How can that be now that I'm a single parent? They're only taking into account my earrings between April 2014 and April 2015, but what about my situation now, which is very different? Also, the sum calculated through the HMRC website: is it monthly or yearly?
Thanks in advance