Idaho does not have a separate extension form for individual filers. Idaho allows an automatic extension to October 15 without filing an application if the taxpayer has paid at least 80% of the current year’s tax liability or 100% of the prior year’s tax liability. To avoid a late-penalty, use Form 51, Estimated Payment of Individual Income Tax, to make a payment.
To access Form 51 in TaxSlayer Pro, from the Idaho Tax Return Menu select:
- Penalty, Interest, Estimated Tax
- Idaho Estimated Payment Coupon
Note: Idaho does not accept Form 51 electronically. This form must be mailed.
Additional Information:
Where Do I Set Up Estimated Payments for Idaho?
TaxSlayer Pro strives to keep the information on this page timely and accurate but makes no promise or guarantee about the timeliness, accuracy, or completeness of the contents of this page. This is general information and is not intended to be tax advice. You are encouraged to also review the underlying state resources and publications.