Till och med det år

13:24 Mar 29, 2014 

Your context sentence indicates an annual payment of a single sum (?), which isn't necessarily unfair - the one born at year end (presumably) got their first payment before their birthday, as well. If this is insurance coverage, it presumably (again (?), context) applies as of (at) the birthday for one year forward. If this is your context, you can adjust my suggested sentence accordingly -- your context?

In school and sports generally the year you're born in is the grade/competitive class you're assigned, with exception allowed on request. So the kid born Dec 31 must ask for specific permission to attend school in a grade with kids born the next year (often granted in my experience, based on 'maturity'/'capability'. This applies in sports where the (to be) 12 year old born in Dec is often at a distinct disadvantage competing against the already 12 year old born in Jan who is 11 or so months older.

Btw, I've grappled with this Swe formulation many times (as most of us) and concluded that since we don't generally see these long-winded formulations, the Swe should be translated as concisely as possible (age - www.ehealthinsurance.com/health-insurance-glossary/terms-a)...

09:08 Mar 29, 2014 

Hello

Your idea actually crossed my mind but I dismissed it as it seemed so 'unfair'

If you are born on 01 January, you would get another year of complete cover but if you are born on 31 December, you would get 0 days cover

Is that how it actually works in Sweden? Please confirm. Thanks