Taxhelptoday.org is a very useful resource, and a good point of reference when it comes to tax-related matters and considerations.
The links available enable you to get a tax Id Number, obtain free information on bankruptcy, read all about tax audit processes, find all the info you need about IRS (such as IRS tax extensions), and read about the Wage Garnishment law, whereby a certain part of your salary can be deducted in order to pay back creditors, although it is worth remembering that according to federal law only 25 % of the income earned by the employee can be deducted. You can also read about new tax deductions and tax planning; this includes free tax savings and reductions newsletters, along with free subscriptions to financial journals. Likewise, there is information about the US Expatriate & Non Resident Tax. Lastly, you can also find information on billing software, including free accounting software which you can use to print invoices. 
