There is a number of different names for this cover, for example disability cover. Basically it is a replacement regular income should you become ill and unable to work.
Let's look at an example:
Say you are self-employed and earning €60,000p.a. In addition you have other income of €10,000.
Should you become ill and unable to work for 12 months, your gross income would drop:

Obviously, this is a fairly critical impact, especially if others are financially dependent upon you.
A self-employed person may not qualify for a State illness benefit.
Tax Relief
The good news is that premiums for this type of cover qualify for tax relief.
Example
Forty year old male, non-smoker. Cover to age of 55 of €750 pw, increasing at 5% p.a.
| Monthly Premium |
€68.76 |
| Tax relief @ 41% |
€28.19 |
| Net monthly cost* |
€40.75 |
* cover would start to pay out after three months (no policy covers the first three months)