Hope this helps.

No. The appointment letter is just a formality that indicate the company's interest to hire you and spells out your job scope, etc and says hiring you is subject to your medical check. Work permit is a green laminated card which will have the type of permit on it, your particulars, foreign identification number, the company employing you and card expiry date, issue dates.

For tax, you can look up at www.iras.gov.sg I think it's a yearly thing. Other than that, I can't remember anything else. Can ask other bros here.

The company doesn't help u pay your taxes.

Some companies will help you report your income for the year directly to IRAS. Then you will login to IRAS and declare other income, tax deductibles, etc. IRAS then sends u a letter telling u how much to pay, and u pay either lump sum or by monthly installments. Note that SG got no PCB like Malaysia.

I would say it is extremely difficult if not impossible to get a room with toilet attached for that budget. For that money you're looking at utility room (small room with bed cupboard desk and no space to put anything else).

1. what form?
2.working pass is employers job. u just sign here n there if necesary (always read tru what they ask u to sign!)
3. ur expectation 1500, or they give u clue of 1500? its very low. but u not miss-type isnt? u said Working-Pass?
4.Dude, u earn 1500 and want to get room for 600? that is huge chunk of ur expenditure! try to get lower, find roommate, stay in JB. u might not save a single penny/ hv entertainment with that salary n room spending.

JustcallmeLarry,

Just as jitshiong mentioned, get the IPA and yes, the company will apply for the work permit on your behalf.

Anyway some areas that are far from town, it's possible to get a room for 500-600 without aircon and no attached toilet from what i've seen around. These kind of rooms can be furnished with basic furniture or semi furnished though. For good locations near to town, afraid to say...room rental is high because of the nearby amenities and facilities, not forgeting that alot of foreign expats like to stay near or in town area for convenience sake.

There are no such room with a toilet other than master room in singapore.
normally the price listed out is fixed due to the market price control and nego is not a option for you, just prepare a minimum SGD900.

Nego?
Before I even see the unit (that means when i called the agent), the agent already told me point blank to bring my cheque along and if ngam already pay deposit. He said don't waste his time if I want to see-see only. I haven't even mentioned nego yet. I think if i say nego, he straight away slam down the phone. And surprisingly many agents also said the same thing.

Ofcoz is a high jump, imagine, SGD600 you might get a common room which is smaller(maybe a maid room still price is depend on location), without toilet, >SGD900, you can get a master room which is abit bigger and with you own toilet. basically is like your own small world in the master room, so the price is much higher.

So let me share with you my experience of finding room on what you need to take note of:
-Room rental cost(does it worth the price you paying for? normally within walking distance of MRT would be higher)
-Any agent fee and how much?
-Does rental included PUB?(this is how they address electric bill and water bill)
- Aircond(optional, if don't have can ask if owner provide fan for the room without ceiling fan)(sometime you see your room got aircond doesn't mean you can use, you need to ask)
- Internet(optional)
- what other utility provided?(e.g:water boiler,washing machine)
- cooking allowed?

this is my experience, might not applicable to all, you can take as reference if you want. normally you just ask room rental included what and they will give you all the answer already.
For my experience, i never met any arrogant agent before, all quite nice. they don't want waste so many times to layan you as they got alot customer so you give them your criteria they will look for you, you noneed to rush them, useless one. You can view the room, why not.

hopes this help.

I helped whatever i can because i understand how it feel to move in singapore without any help.haha

the problem you facing now is toilet, 900 with attached toilet near public transport spots(i guess you mean mrt because bus stop is everywhere), you need to search for the room harder, maybe you will find one, because is quite a big sum for a single tenant, i bet alot of tenant want this kind of tenant as they get quite a sum but only one tenant at that room. i suggest you try to find room where the unit only got two room, one master room and one common room, definitely you will be the only one use the toilet while you rent the common room, the different thing is toilet not attached to your room..

if a girl looking for attached toilet i can understand, but can i ask why you want a attached toilet so badly?

only two type of people in sg, rich people and poor people
rich people can straight buy condo, drive to work, they feel at home everything is within reach
poor people rent and stay in hdb and squeeze in train and complain 

i look at my ang moh colleague on expat package,
u think beign white he is foreginer 
bloody hell he feel more at home than in UK 
he is not going back to UK and pay high tax   

can conclude your aunty is in the P category 

Then should be ok, but staying with owner is still not as much freedom as having your own place. But I guess Penang and SG mentality are about the same so easier to click, haha.
Last time when I was in uni, we had 9 ppl share 2 toilets. Nothing is impossible.

Should visit propertyguru.com then you can see all the criteria listed out then you can have better mind a unit or a room. now i understand why you want a unit as you already have a wife.you should set a target first before start searching, like location and then price

You can find such info from Property Guru Sg, it has a lot of property listings.

My cousin went to view a unit (1 bedroom HDB) in Commonwealth area last week, the asking price was $1.8K/m.