An ITIN is just one of several identification numbers ... preparer or tax software company may pay an additional fee. For example, the fee for filing a W-7 with Losi at Piascik is a flat $1,000 ...
However, ITINs have other benefits and uses, too. For example, those who don’t have SSNs but do have ITINs might be able to open an interest-bearing bank account or secure a driver’s license.