Originally Posted by
darren-b
You want to post if as late as possible making sure they receive it before your visa expires. So if you post it on the 26th March by Special Delivery the HO will receive it on the 27th March. The HO probably won't process your application immediately and even if they did I don't believe nowadays the HO will reject your application for being a day or so early. Though if you want to make sure you could use the old trick of paying by cheque as the HO definately won't process your application until the cheque has cleared.