QuickBooks calculates tax and tracks what you collect, but doesn't file returns or send payments to states. You need separate filing software (like Kintsugi) or manual filing. We integrate directly with QuickBooks for seamless automation.

For sales tax: Kintsugi if you want actual automation across multiple states. TaxJar works but requires more manual work. Avalara is overkill unless you're enterprise. For income tax, that's completely different (TurboTax Business or a good CPA).

The expensive ones: missing deadlines (instant penalties), wrong filing frequency, forgetting local jurisdictions, not filing zero-returns when required, missing amended returns after refunds. Software eliminates these completely.

Register where you have nexus. Calculate tax at checkout. Collect from customers. File returns on schedule. Pay states by deadline. Most businesses struggle with steps 4 and 5, which is exactly what Kintsugi automates.

Your sales data flows in automatically from connected platforms. We calculate what you owe each state. When deadlines approach, returns get prepared and filed electronically. Payments go out via ACH. You get a summary showing everything's done.

We handle them. Whether you're correcting errors, processing refunds, or applying credits, amendments get filed properly without messing up your regular schedule.

Yes. Colorado with its hundreds of local taxes. Louisiana with parish filing. Alaska with borough requirements. These complex states work exactly like simple ones in our system.