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There are two ways to pay for Statistics of Income (SOI) Data.

• The first way is by a debit or credit card. In order to purchase your data, you must have an SOI invoice number, provided to you by Statistical Information Services (SIS). To obtain an invoice number or if you have questions about an invoice, please contact SIS by phone at (202) 874-0410 or by email. 
  
  
• The second way to pay for SOI data is via mail by check or money order.  Please contact the SIS Office for instructions and an invoice.

If you have an invoice number and wish to pay by credit or debit card,
make your payments here. (This will take you out of the IRS website.)

Please note that this is not a website to pay your tax liability, and payment will not be accepted for this purpose.