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If you are getting a refund:
Mail your return to:Iowa Income Tax - Refund ProcessingHoover State Office BuildingDes Moines IANNN-NN-NNNN/p>
If you are submitting a payment:
Mail your return and payment and payment voucher to:Iowa Income Tax - Document ProcessingPO Box 9187Des Moines IANNN-NN-NNNN/p>
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