Take-home pay in Iowa by business structure

At $100,000 of profit, an owner in Iowa keeps $79,485 as an LLC taxed as an S corp and $74,715 as a sole proprietor, after 2026 taxes and fees. Change the profit to see your own numbers.

$79,485 a year

kept from $100,000 of profit as an LLC taxed as an S corp in Iowa, after every tax and fee counted here. That is $9,104 more than as a C corporation.

Iowa, 2026: $100,000 profit, single filer

Structure	Taxes and fees	You keep	Share
Sole proprietorship	$25,285	$74,715	75%
Single-member LLC	$25,294	$74,706	75%
LLC taxed as an S corp most	$20,515	$79,485	79%
S corporation	$20,527	$79,473	79%
C corporation	$29,619	$70,381	70%

What Iowa takes from a business owner

Iowa taxes personal income at a flat 3.8% (2026).revenue.iowa.gov, checked Oct 23, 2026
An LLC pays the state Biennial Report, $30 every two yearslegis.iowa.gov, checked Oct 23, 2026.
An S corp in Iowa can elect to pay the state's income tax itself, a pass-through entity tax of 3.8%, and the owner gets a credit for it. The company deducts it on the federal return, so it is not held to the SALT cap. The calculator uses it when it lowers the totallegis.iowa.gov.
An S corp owner on payroll pays Iowa unemployment tax at 1% on the first $20,400 of salary in the first yearworkforce.iowa.gov, checked Oct 23, 2026.

What you keep at each profit

Profit	Sole prop	LLC	LLC as S corp	S corp	C corp
$50,000	$39,114	$39,103	$39,339	$39,326	$36,837
$100,000	$74,715	$74,706	$79,485	$79,473	$70,381
$150,000	$107,707	$107,697	$115,274	$115,262	$99,950
$250,000	$175,314	$175,304	$185,271	$185,260	$160,339
$500,000	$312,448	$312,439	$341,561	$341,551	$303,893

Single filer, no other income, revenue 1.5 times profit, the default salary for S and C corps. The most kept at each profit is green.

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