Leaving Germany for six months

I've been living and working in Germany for the past 16 months. In a few weeks, right before my residence/work permit expires, I will be going back to Canada for 5.5 months. After that, I'll be coming back (as recently discussed).

I'm keeping my apartment (I'm subletting it for those 5.5 months) and my Postbank bank account. My questions are:

1. Do I have to de-register even though I'm coming back and my address doesn't change?
2. Does my 5-years-of-living-in-Germany start over when I come back?
3. Do I have to pay German taxes on money I make when I'm back in Canada (since I've been here for most of the year)?
4. Will my Steuernummer still be good after I get back and re-apply for a residence permit?
5. Anything else I need to know?

Thanks again!

i (american) have permanent residence and work permits for germany. if i am gone from germany for 6 months or more, my permits expire and i will then have to redo the whole process again if i decide to re-enter the country. meaning, i will have to then work here consitnuously for another 5 years in order to get the permanent residence and work permits. who knows how lenient they would be.

so no, i would not de-register. regarding the tax questions, i cannot help you.

1/2
Actually, you can get an exception to this rule, if you can convince the KVR person to give it to you before you leave. A valid reason could be
Family Emergency, Legal issues in your home country that need to be worked out, etc. Just tell the KVR person that xxx died and you need to fly home and take care of the Estate and sort out all the legal issues, I'm sure they'll give you the exemption. In this case a deregistration is not required.

3. No, just don't tell'em.. What they don't know won't hurt'em
4. See my 1st paragraph. But if you do need a new one it takes all of 5min to get a new one..
5. See Above.

Okay, I'm confused about de-registration. Is it really necessary? What would happen if I just don't do it? Won't I somehow be automatically de-registered when my visa expires? Or will they not let me back in the country?

As you know, it's a pain in the ass to go to the KVR so I want to avoid it if I can.

you don't need to go to KVR to deregister as far as I know. Just download the form and post it

AFAIK it doesn't automaically expire. maybe after 10 years of inactivity?

when i came here in '97, i was registered at my ex bf's parents place. i left 6 months later and didn't give it a thought, then they found out they were paying more trash fees cause they supposedly had one extra trash maker in the house. also, when i went several years ago to get my drivers license, they said i had been in germany for 3 years and nearly refused to let me transfer my license. according to my passport, i had only been in germany for 2.5 years. it worked out in the end, but because i had no deregistered, i almost nearly had to do the DE d.l. all over again.

so yes, sometimes it makes sense to deregister.

I have a question guys about the authorities in the airport, If I have a valid residence visa in Germany, and I travelled outside Germany for six month, will the authorities prevent me from entering Germany again?
Thank you.

Technically, yes they can as part of the visa requirements state you will report to the local Amt. any prolonged
absence from Germany. Which is why they issue you a letter to show the border guards on your way back in.
Take the time to goto the local Auslanderamt, Rathaus, etc.etc. and get your letter. Otherwise good luck getting back in.

Even if I didnt de register before I left? and will they know it because of passing through the airport database or from the local amt?
About the letter they say that it is so hard to issue?>

Yes.
Yes, maybe even both.
The letter is not hard to get.. Go in, give a reason, collect your letter.

They told me it is hard to get such paper, it is only for the people that serve Germany, but what is the case if I am outside Germany, and someone has to go to collect the paper for me?
and is there a possibility that no one will stop me in the airport since I have a valid residence?

Is it an unlimited one? Or a Time based one?
Either way getting the letter you need shouldn't be that hard, just tell'em you need to help your parents with their business for a few months, etc. etc.

That serve Germany, How exactly? Those that usually "Serve" are in the German military and are German citizens. Thus don't need the Permission letter.

As already mentioned YOU need to get the letter yourself BEFORE you Leave Germany.

It's possible, but do you really want to take the chance and poss. get blocked from entering EU/Schengen Land for a few years.
Play by the rules..

Well, I am already outside Germany, and it passed the six month by one month, so what will be the situation, Is it recommended to enter from another EU country and then go by car to Germany.
and if so which countries?
I am still on the limited residence, but my wife is German, and I get a new offer letter for work in Germany, will they take it into consideration in airport if I showed them the offer?
If I have a medical report that I couldnt leave the country I have been during the last month would it help in the airport, or I should send it first to Germany and my wife will issue the letter for me from the auslander amt?
I hope I am not bothering you with my questions
Regards

Since you're married to a German they might let you back in on compassionate grounds, but as far as I know your residence permit is no longer valid and you'd have to apply for a new one, thus starting the wait for permanent residence all over again.

Won't help.. All EU and Schengen countries share a common Immigration/movement Database called SIS.
It doesn't matter which country you leave/enter through, all other countries can pull up the details.

Maybe if your very lucky.. However your permit is still of a limited type and by your own statement , its expired.. The border cops at the airport
may take pity on you, but the more common stance is that you should have had things in order before returning. Plan for the worse but hope for the best.

It prob. won't help at the airport, but might help elsewhere. The prob. is that you are in the quasi "No man lands" at the airport until you clear immigration.
The next thing they may bring up is why you were medically prohibited from leaving the other country. With swine flu a major issue here, don't be surprissed
if they want exact details, or in the worse case even deny entry base on the medical reasons.