Iowa Income Tax
Income tax returns should be in by April 30th. If using postal mail the date the return is postmarked determines the due date and not the date the return was received.
Iowa Tax Filing Guide
Here are detailed instructions for filing taxes in the state of Iowa.
Consider using TurboTax to E-File your Iowa taxes.
Iowa Residents
If you lived in Iowa for more than 183 days or if your domicile (permanent) home was in Iowa for the entire year you are a resident of Iowa. If you are a resident of Iowa who is younger than 65 you will need to file a Iowa income tax return if you are single and made over $9,000, if you are married and made over $13,500, or if you are a dependant and made more than $5,000. If you are a resident of Iowa that is older than 65 you will need to file a Iowa income tax return if you are single and made more than $24,000 or are married/head of household and made more than $32,000. To file an Iowa return use Form-1040 (attached below). For additional assistance see Form-1040 Instructions (attached below).
Related Tax Forms
- Form IA 1040A - Iowa Individual Income Tax Return (Short)
- Form IA 1040 - Iowa Individual Income Tax Return (Long)
Part-Year Iowa Residents
If you moved into or out of Iowa during the tax year you are a part-year resident of Iowa. Part-year residents must file a tax return tax return if they earned more than $1000 of income from Iowa sources. Part-year residents are taxed on their Iowa Net Income which includes all income earned during the time they were a resident of Iowa, regardless of where the income was earned, as well as income earned from Iowa sources during the period of non-residency. To file a part year return with Iowa fill out Form-1040 (attached below) use the amount of Iowa income calculated using Form-126 (attached below) when filing your return. When filing your return you will need to submit Form-1040, Form-126, and your federal return. For more information see Form-140 Instructions (attached below).
Related Tax Forms
- Form IA 1040A - Iowa Individual Income Tax Return (Short)
- Form IA 126 - Iowa Individual Part-year and Non-resident Income Tax Return
- Form IA 1040 - Iowa Individual Income Tax Return (Long)
Iowa Residents who work in another state
If you lived in Iowa for more than 183 days or if your domicile (permanent) home was in Iowa for the entire year you are a resident of Iowa. If you are a resident of Iowa who is younger than 65 you will need to file a Iowa income tax return if you are single and made over $9,000, if you are married and made over $13,500, or if you are a dependant and made more than $5,000. If you are a resident of Iowa that is older than 65 you will need to file a Iowa income tax return if you are single and made more than $24,000 or are married/head of household and made more than $32,000. To file an Iowa return use Form-1040 (attached below). For additional assistance see Form-1040 Instructions (attached below).
If you are an Iowa resident that works in another state you, Iowa will be taxed all of your income regardless of where it was earned. However you maybe taxed by the state you work in on income that was earned in that state. To avoid dual taxation on such income Iowa had an Out-of-State Credit. Schedule IA 130 (attached below) will allow you to compute the size of credit you will receive. To qualify for this credit file your return by attaching Schedule IA 130 to your Iowa return (filed using Form-1040, attached below), your return that you filed with the other state. Make sure to also attached your federal return. For additional assistance see Form-1040 Instructions (attached below).
Related Tax Forms
- Schedule 130 - Iowa Credit for Tax Paid To Another State
- Form IA 1040A - Iowa Individual Income Tax Return (Short)
- Form IA 1040 - Iowa Individual Income Tax Return (Long)
Non-Residents who work in Iowa
If your domicile (permanent) home was not in Iowa for any part of the year, you are a nonresident of Iowa. Nonresidents are not subject to Iowa lump sum or minimum tax but will have to pay income tax and file an income tax return if they earned more than $1,000 of income from Iowa sources. Nonresidents of Iowa are taxed only on income that they received from Iowa sources. To file a nonresident return with Iowa fill out Form-1040 (attached below) using the amount of Iowa income calculated with Form-126 (attached below). When filing your return you will need to submit Form-1040, Form-126, and your federal return. For more information see Form-140 Instructions (attached below). Wages and salaries count as taxable income and must be reported. Make sure however to only include wages and salaries earned from Iowa sources.
Related Tax Forms
- Form IA 1040A - Iowa Individual Income Tax Return (Short)
- Form IA 126 - Iowa Individual Part-year and Non-resident Income Tax Return
- Form IA 1040 - Iowa Individual Income Tax Return (Long)
Non-Residents who sold property in Iowa
If your domicile (permanent) home was not in Iowa for any part of the year, you are a nonresident of Iowa. Nonresidents are not subject to Iowa lump sum or minimum tax but will have to pay income tax and file an income tax return if they earned more than $1,000 of income from Iowa sources. Nonresidents of Iowa are taxed only on income that they received from Iowa sources. To file a nonresident return with Iowa fill out Form-1040 (attached below) using the amount of Iowa income calculated with Form-126 (attached below). When filing your return you will need to submit Form-1040, Form-126, and your federal return. For more information see Form-140 Instructions (attached below). Rents and royalties from Iowa sources count as taxable income and thus must be reported.
Related Tax Forms
- Form IA 1040A - Iowa Individual Income Tax Return (Short)
- Form IA 126 - Iowa Individual Part-year and Non-resident Income Tax Return
- Form IA 1040 - Iowa Individual Income Tax Return (Long)
Iowa State Tax Forms
- Form IA 4136 - Computation of Credit for Motor Fuel Tax
- Form IA 126 - Iowa Individual Part-year and Non-resident Income Tax Return
- Schedule 130 - Iowa Credit for Tax Paid To Another State
- Form IA 1040 - Iowa Individual Income Tax Return (Long)
- Schedules A and B - Iowa Itemized Deductions Schedules
- Form IA 1040A - Iowa Individual Income Tax Return (Short)
Relevant Links
- State of Iowa Tax Website - Official Site
- Additional Tax Forms - A Comprehensive Collection of Iowa Tax Forms
- Tax Refund Status
Iowa Mailing Address
Wondering where to mail your Iowa taxes? Here's the address:Receiving Refund/No Tax Due:
Iowa Income Tax Refund Processing
Hoover State Office Bldg
Des Moines IA 50319-0120
Paying Additional Tax:
Mail a check or money order with an IA 1040-V Payment Voucher
Iowa Income Tax:
Document Processing
PO Box 9187
Des Moines IA 50306-9187
Iowa Sales Tax
Iowa has a sales tax of 6%. It also has a 6% use tax on out-of-state purchases. Localities may choose to enact additional sales taxes. For more information on local sales taxes see the cities or counties tables.

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