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Research Hours

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Memorial Day - Labor Day

Monday - Friday, 8:30 a.m. to 4:00 p.m. CST​​

Labor Day - Memorial Day​

Monday - Friday, 8:30 a.m. to 5:00 p.m. CST

Extended Tax Season Hours

February ​

  • Monday - Wednesday, 8:00 a.m. to 6:00 p.m. CST
  • Thursday and Friday, 8:00 a.m. to 5:00 p.m. CST

March

  • Monday - Wednesday, 8:00 a.m. to 6:00 p.m. CST
  • Thursday and Friday, 8:00 a.m. to 5:00 p.m. CST
  • Saturdays, 9:00 a.m. to 1:00 p.m. CST

April 1-15

  • Monday - Friday, 8:00 a.m. to 6:00 p.m. CST
  • Saturdays, 9:00 a.m. to 1:00 p.m. CST

Questions can be submitted by phone, fax, email or online. Chat services are available during regular research hours.

NATP Login

Email or Customer ID:

Password:

PO Box 8002, Appleton, WI 54912-8002 Phone: 800.558.3402 Fax: 800.747.0001

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