If your 1099R Statement Box 2.a for the Taxable Amount is marked as 'Unknown'; this means that OPM did not calculate the tax-free portion of your annuity. Some of the most common reasons for not calculating the tax-free portion of your annuity:
OPM CAN NOT provide tax advice. Please contact the Internal Revenue Service toll free at 1-800-829-1040 to speak with an agent who will provide free tax advice.
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