IRS Form W-9 Information
Delta Dental of Massachusetts is required by the Internal Revenue Service (IRS) to report all payments made to you annually. The amount is reported on Form 1099 under a tax identification number (TIN) or social security number that should match the IRS's records. The IRS now requires that only one individual or business name may be associated with a tax identification number (TIN) or social security number.
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Click here to download form W-9 from the Internal Revenue Service.
Click here to download the on-line fill-in version of form W-9 from the Internal Revenue Service.
Click here to download the instructions for the requester of form W-9 from the Internal Revenue Service.
For questions regarding a TIN or help completing a W-9 form please contact the Internal Revenue Service at 1-800-829-1040.
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