Those of you with a personal adsense account, what are you writing off? and what can be written off? I could write off a new computer!
For the best advice, contact an accountant. If it is like it is here in Canada, your best strategy is to form a sole proprietorship company to have the revenue pass through it. This allows you to designate an area in your house/apartment for business only purposes and to write off that percentage of space against the business income. Here, computers are normally considered a type of asset which need to be depreciated over time. Some people do write them off all at once . . . but that can be over-turned on assessment. The record keeping for businesses is more onerous than for individuals and the number of years you need to retain records is normally longer.