Iowa offers a vibrant environment for business, with over 289,000 small businesses employing about 46% of the state’s workforce. Whether you’re an established business owner or planning to start a new venture, understanding the tax landscape in Iowa is crucial. This guide provides an overview of the various taxes small businesses in Iowa must navigate, including tax rates, filing requirements, and deadlines.
Types of Business Taxes in Iowa
Business owners in Iowa may be subject to various taxes depending on their business structure, activities, and revenue. Here’s a breakdown of the main types of taxes:
Corporate Income Tax
Applicable Entities: C corporations, LLCs with C corp elections
Tax Rate: 5.5%–7.1% (taxable income is reduced by 50% of federal income taxes paid)
Filing Requirements: File Form IA 1120 by the last day of the fourth month after the tax year ends.
Estimated Payments: Required if liability, after allowable credits, exceeds $1,000. Payments are due quarterly on the last day of the tax year’s fourth, sixth, ninth, and 12th months.
Pass-Through Entity (PTET) Tax
Applicable Entities: Businesses taxed as a partnership or S corporation
Tax Rate: 6%
Filing Requirements: File Form IA 1065 (for partnerships) or Form IA 1120S (for S corporations)by the last day of the fourth month after the tax year ends.
Estimated Payments: Required if liability, after allowable tax credits, exceeds $1,000. Payments are due quarterly on the last day of the tax year’s fourth, sixth, ninth, and 12th months.
Sales and Use Tax
Applicable Activities: Sales of tangible personal property, specified digital products, or taxable services
Tax Rate: 6% (1% optional local rate may apply)
Filing Requirements: File Form 32-028 monthly or annually based on sales volume.
Withholding Tax
Applicable Entities: Employers with employees
Tax Rate: Varies
Filing Requirements: File Form 44-095 quarterly by the last day of the month after the quarter.
Estimated Payments: Monthly filers must make two monthly payments per quarter (in addition to the quarterly return); semi-monthly filers must make six payments per quarter (in addition to the quarterly return).
Unemployment Insurance Tax
Nonresident Withholding Tax
Applicable Entities: Pass-through entities with nonresident members
Tax Rate: 3.8% on distributive share income
Filing Requirements: File Form IA 1065 (for partnerships) or Form IA 1120S (for S corporations)by the last day of the fourth month after the tax year ends.
How to File and Pay Iowa Business Taxes
Business taxes in Iowa can be filed and paid through various methods:
Online Filing and Payment: Use GovConnect Iowafor electronic submissions and payments.
Mail: Send forms and payments to the address indicated (where applicable).
Important Deadlines
Keep track of these key dates to avoid penalties:
Corporate Income Tax Returns: Due by the last day of the fourth month after the tax year ends
Estimated Tax Payments: Due quarterly on the last day of the tax year’s fourth, sixth, ninth, and 12th months
Sales and Use Tax Returns: Monthly or annual filing based on sales volume
Withholding Tax Returns: Due quarterly by the last day of the month after the quarter
Unemployment Insurance Reports: Due quarterly by the last day of the month following the filing period
Tax Credits and Incentives
Iowa offers several tax credits and incentives for small businesses, including:
New Jobs Tax Credit: Available to corporate income taxpayers who participate in the New Jobs Training Program and commit to expanding their Iowa employment base by at least 10%. The one-time tax credit is worth up to $2,370 per new employee based on wages paid and can be carried forward for up to ten years.
Investment Tax Credit: Available to eligible businesses approved by the Iowa Economic Development Authority under the High Quality Jobs Program. The credit is worth up to 10% of the qualifying investment in real property, including any buildings and structures located on the real property, the cost of machinery and equipment, and the cost of improvements to real property. It can be carried forward for up to seven years.
Research activities tax credit: Available to businesses that are allowed the Section 41 federal research credit and engaged in manufacturing, life sciences, software engineering, or aviation and aerospace. The credit equals the sum of 1) 6.5% of the excess of qualified research expenses (qualified wages, supplies, and contract research expenses) over a base amount and 2) 6.5% of basic research payments.
Check out our article on tax credits for Iowa businesses to learn more.
Iowa’s business tax breakdown by business type
Business taxes can get complicated, so below, we’ve included a chart that breaks down the taxes different business structures usually pay.
Keep in mind that pass-through entities don’t pay federal income taxes themselves—the obligation is passed on to their business owners or shareholders, who pay them through their personal income tax returns.
Business type | Personal income tax | PTE election tax | Corporate income tax | Sales and use tax | Withholding tax | Unemployment tax | Federal income taxes |
C corporation | No | No | Yes | Yes, if applicable | Yes, if you hire employees | Yes, if you hire employees | Yes |
S corporation | Yes (pass-through), if not making the PTE election | Yes, if it makes the election | No | Yes, if applicable | Yes, if you hire employees | Yes, if you hire employees | Yes (pass-through) |
LLC | Yes (pass-through), if not making the PTE election | Depends on how it’s structured | Depends on how it’s structured | Yes, if applicable | Yes, if you hire employees | Yes, if you hire employees | Yes (pass-through) |
Partnership | Yes (pass-through), if not making the PTE election | Yes, if it makes the election | No | Yes, if applicable | Yes, if you hire employees | Yes, if you hire employees | Yes (pass-through) |
Sole proprietorship | Yes (pass-through) | No | No | Yes, if applicable | Yes, if you hire employees | Yes, if you hire employees | Yes, by way of individual income tax |
File your Iowa small business taxes with Gusto
As a business owner, your time and energy are valuable, finite resources. So, instead of managing your taxes manually, let Gusto give you a hand. Our easy-to-use software automatically files all your payroll taxes each time you run payroll—freeing up your bandwidth for the work that matters most.
Learn how else Gusto can simplify the operations of your small business by creating an account today.
Iowa Small Business Taxes: The Employer’s 2024 Guide
Iowa offers a vibrant environment for business, with over 272,000 small businesses employing about 46% of the state’s workforce. Whether you’re an established business owner or planning to start a new venture, understanding the tax landscape in Iowa is crucial. This guide provides an overview of the various taxes small businesses in Iowa must navigate, including tax rates, filing requirements, and deadlines.
Types of Business Taxes in Iowa
Business owners in Iowa may be subject to various taxes depending on their business structure, activities, and revenue. Here’s a breakdown of the main types of taxes:
Corporate Income Tax
Applicable Entities: C corporations, LLCs with C corp elections
Tax Rate: 5.5%–7.1% (taxable income is reduced by 50% of federal income taxes paid)
Filing Requirements: File Form IA 1120 by the last day of the fourth month after the tax year ends.
Estimated Payments: Required if liability, after allowable credits, exceeds $1,000. Payments are due quarterly on the last day of the tax year’s fourth, sixth, ninth, and 12th months.
Pass-Through Entity (PTE) Tax
Applicable Entities: Businesses taxed as a partnership or S corporation
Tax Rate: 6%
Filing Requirements: File Form IA 1065 (for partnerships) or Form IA 1120S (for S corporations)by the last day of the fourth month after the tax year ends.
Estimated Payments: Required if liability, after allowable tax credits, exceeds $1,000. Payments are due quarterly on the last day of the tax year’s fourth, sixth, ninth, and 12th months.
Sales and Use Tax
Applicable Activities: Sales of tangible personal property, specified digital products, or taxable services
Tax Rate: 6% (1% optional local rate may apply)
Filing Requirements: File Form 32-028 monthly or annually based on sales volume.
Withholding Tax
Applicable Entities: Employers with employees
Tax Rate: Varies
Filing Requirements: File Form 44-095 quarterly by the last day of the month after the quarter.
Estimated Payments: Monthly filers must make two monthly payments per quarter (in addition to the quarterly return); semi-monthly filers must make six payments per quarter (in addition to the quarterly return).
Unemployment Insurance Tax
Nonresident Withholding Tax
Applicable Entities: Pass-through entities with nonresident members
Tax Rate: 5.7% on distributive share income
Filing Requirements: File Form IA 1065 (for partnerships) or Form IA 1120S (for S corporations)by the last day of the fourth month after the tax year ends.
How to File and Pay Iowa Business Taxes
Business taxes in Iowa can be filed and paid through various methods:
Online Filing and Payment: Use GovConnect Iowafor electronic submissions and payments.
Mail: Send forms and payments to the address indicated (where applicable).
Important Deadlines
Keep track of these key dates to avoid penalties:
Corporate Income Tax Returns: Due by the last day of the fourth month after the tax year ends
Estimated Tax Payments: Due quarterly on the last day of the tax year’s fourth, sixth, ninth, and 12th months
Sales and Use Tax Returns: Monthly or annual filing based on sales volume
Withholding Tax Returns: Due quarterly by the last day of the month after the quarter
Unemployment Insurance Reports: Due quarterly by the last day of the month following the filing period
Tax Credits and Incentives
Iowa offers several tax credits and incentives for small businesses, including:
New Jobs Tax Credit: Available to corporate income taxpayers who participate in the New Jobs Training Program and commit to expanding their Iowa employment base by at least 10%. The one-time tax credit is worth up to $2,292 per new employee based on wages paid and can be carried forward for up to ten years.
Investment Tax Credit: Available to eligible businesses approved by the Iowa Economic Development Authority under the High Quality Jobs Program. The credit is worth up to 10% of the qualifying investment in real property, including any buildings and structures located on the real property, the cost of machinery and equipment, and the cost of improvements to real property. It can be carried forward for up to seven years.
Research activities tax credit: Available to businesses that are allowed the Section 41 federal research credit and engaged in manufacturing, life sciences, software engineering, or aviation and aerospace. The credit equals the sum of 1) 6.5% of the excess of qualified research expenses (qualified wages, supplies, and contract research expenses) over a base amount and 2) 6.5% of basic research payments.
Check out our article on tax credits for Iowa businesses to learn more.
Iowa’s business tax breakdown by business type
Business taxes can get complicated, so below, we’ve included a chart that breaks down the taxes different business structures usually pay.
Keep in mind that pass-through entities don’t pay federal income taxes themselves—the obligation is passed on to their business owners or shareholders, who pay them through their personal income tax returns.
Business type | Personal income tax | PTE election tax | Corporate income tax | Sales and use tax | Withholding tax | Unemployment tax | Federal income taxes |
C corporation | No | No | Yes | Yes, if applicable | Yes, if you hire employees | Yes, if you hire employees | Yes |
S corporation | Yes (pass-through), if not making the PTE election | Yes, if it makes the election | No | Yes, if applicable | Yes, if you hire employees | Yes, if you hire employees | Yes (pass-through) |
LLC | Yes (pass-through), if not making the PTE election | Depends on how it’s structured | Depends on how it’s structured | Yes, if applicable | Yes, if you hire employees | Yes, if you hire employees | Yes (pass-through) |
Partnership | Yes (pass-through), if not making the PTE election | Yes, if it makes the election | No | Yes, if applicable | Yes, if you hire employees | Yes, if you hire employees | Yes (pass-through) |
Sole proprietorship | Yes (pass-through) | No | No | Yes, if applicable | Yes, if you hire employees | Yes, if you hire employees | Yes, by way of individual income tax |
File your Iowa small business taxes with Gusto
As a business owner, your time and energy are valuable, finite resources. So, instead of managing your taxes manually, let Gusto give you a hand. Our easy-to-use software automatically files all your payroll taxes each time you run payroll—freeing up your bandwidth for the work that matters most.
Learn how else Gusto can simplify the operations of your small business by creating an account today.
