Sales Tax in Diagonal, IA.
Get the current sales tax rate for Diagonal, Iowa — and automate compliance with Taxwire.
Diagonal, IA
Combined sales tax rate
7%
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Our team can help you navigate Iowa's state tax requirements.
Tax rate breakdown
The combined sales tax rate of 7% for Diagonal is made up of the following components:
Tax on Sale
1.
State
6%
2.
County
1%
3.
City
0%
4.
District
0%
3.
Tax due on sale
7%
Why sales tax rates vary across Iowa?
Iowa allows local governments to levy additional sales taxes on top of the state rate. This means the total sales tax you collect or pay depends on the specific address of the transaction — not just the city or ZIP code. Two businesses on opposite sides of the same street can have different tax obligations if they fall in different jurisdictions.
This is why accurate, address-level tax calculation matters. A single ZIP code in Iowa can contain multiple tax rates.
Simplify Iowa sales tax compliance
Staying compliant with Iowa sales tax can be complex — rates change, rules vary by product, and you need to track nexus across multiple jurisdictions. Taxwire automates sales tax calculation, filing, and remittance so you never miss a deadline.
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