You have to show and send the original birth certificate of the Irish relative, which I know has caused issues for some people
I recently obtained my dads BC, so that I can apply for my passport. I had been put off doing it as I thought it would be difficult, but it ended up being very straight forward.
I emailed Dublin records office first, to make sure dads birth was recorded correctly (online records only go up to 1921), got a confirmation within about 20 mins.
There are then 2 options to apply - an online application, or fill in a form and email back, they then send a payment link.
I tried the online option but it wouldn’t accept any of my UK payment cards, I think maybe the 2 stage authentication caused an issue.
So I then tried the form option, expecting it to take weeks, but within just over a week, I received the payment link, which worked. I paid for registered post and had BC a few days later.
One of my tasks this weekend is to do the online Irish passport application - has anyone done this recently, if so, did the payment system work? I am wondering if I will have same problem as with BC application?