@Lellochip - sorry, was sorting the DC's lunch and only just spotted this!
You won't like my answer 😖 If you don't want to read the whole blurb below, basically I wouldn't recommend them. Expensive for what it is and rarely delivers as expected. Lots of income protection claims refused in comparison to others.
Critical illness won't cover things like anxiety/depression or a bad back etc so it depends what you're really want to cover yourself for. If you want those things covered then income protection is what you need. But it's not an easy benefit to claim.
A decent critical illness policy will pay you a healthy sum that you can do with what you want, and buy you a lot of time off work if needed or just improve your quality of life, or even buy private treatment. For me, I only really wanted to be covered for the big things that could seriously mess up my health - cancer, stroke, heart attack, and so on.
Income protection - honestly, the claims process is a bloody nightmare. Every company is the same. I can't tell you how many seminars I went to on this subject. Firstly, make sure you understand that it's an income replacement scheme - that means you'll need to prove what your income was in the 12 months before you got ill. And if you have any money coming in from another source, they'll take that off your total entitlement. Also, you can't cover 100% of your salary - it's usually about 60% maximum - and that's from all sources.
So for example, let's say you earn £100k (because it's easy) - 60% is £60k, minus £4k state benefits (whether or not you receive it) - £56k divided by 12 = £4666 per month. That means you can get £4666 per month from EVERYONE. If you have paid for £4000 income protection per month but you're getting £1000 per month from your employer, this money will be deducted from your total entitlement of £4666 - so that means your payments will only be £3666 even though you've paid for £4000 per month. Any other income will also be deducted (but not a critical illness payment). So you'll have to make do on a maximum of 60% of your salary.
That's the financial side of things which often causes problems - I've just skimmed over the basics there.
The worst part of it is the medical assessment. Your GP signing you off work won't suffice for your insurer. They'll need a full report, and also a report from your consultant. If you haven't got a consultant yet or your consultant writes a report that's not sufficient, you'll need to attend a medical examination.
Getting all the medical information in can take several months. Very few income protection claims start getting paid when they're due. And even then, if they are paid, you'll be regularly reviewed. Medical certificates from your GP aren't sufficient - it's an ongoing review process of getting reports every couple of months (usually) and sometimes sending you for another examination. They send nurses to your home to talk to you about what adjustments can be made to your job to get you back to work.
And that's the final kicker - it's not your specific job at your specific company that's covered. It's your occupation in general. So if there's something which is unique to your company but that wouldn't apply elsewhere - eg/no lift - then your claim won't be paid. Some income protection policies are based on an own or suited definition - that means they are only paid if you can't do your own occupation AND you can't do another occupation that you're suited to by virtue of your training, education and experience.
Sorry for the long reply, I'm trying to cram a lot in here. But in short, income protection claims are a bloody nightmare for most folk. And they don't give them what they were expecting, or pay out as quickly as people have been led to believe.
I dealt with income protection claims for 15 years + - I wouldn't touch one of these policies. I also dealt with critical illness claims for the same period and I think they're invaluable.
Also - income protection policies are the ones where insurers instruct private investigators to watch you if they have any suspicions. I saw hundreds and hundreds of videos over the years.