Forum Moderators: martinibuster
But a payment that Google ISSUED in December would be considered to be 2005 income, following that approach.
If a lot of money is involved, talk to a tax preparer or an accountant. Otherwise, again for the US, there is a ton of information available from the IRS.
If you are a cash-based entity, you report income when "constructively received." In most cases, this is when you receive a check or cash (even if you're lazy and don't put it in the bank until months later). If you receive the check on Dec. 31, but you don't actually check your mail untilk after the banks close? Well it's still considered 2005 income.
If you are an accrual-based entity, you report income when "constructively earned." This usually means that you have completed the work. So if you are an accrual-based entity, your AdSense revenue for December (as well as your November revenue) should also be included in income for 2005, even though you don't get paid for it until Jan. 2006.
As pointed out before, you should go by the 1099 that Google sends you (if any). If you report less than what Google reports, it will raise a big red flag and probably trigger a letter form the IRS.
What if Google's 1099 doesn't match what you should report? No matter what, you should report the same amount as on Google's 1099 (unless it's wrong- then you should contact Google to issue a corrected 1099). Add/subtract any discrepancy (like not actually getting the check until 2006) on another line.