TaxJar × Fulfil

TaxJar integration

Simple sales tax,
for growing DTC brands.

Fulfil fetches tax rates from TaxJar when orders are created and sends transactions when orders ship, not at checkout. Filings match what actually shipped.

FAQ

Questions? Answers.

When does Fulfil calculate tax versus report it to TaxJar?
Tax is calculated when the order is created: directly by Fulfil for orders you enter manually, or at checkout by Shopify or another platform for e-commerce orders. Fulfil then sends the completed transaction to TaxJar when the invoice is posted, which is typically when the order ships, so your reporting matches what actually went out the door.
Does Fulfil figure out my nexus?
No. Fulfil does not perform nexus calculations. You configure nexus in your TaxJar account, and Fulfil syncs those nexus states in when you refresh the tax rule. TaxJar then supports both origin-based and destination-based sourcing using the ship-from and ship-to addresses Fulfil sends.
Can I assign tax codes to specific products?
Yes. You manage TaxJar tax codes at the product category level or the individual product level, and a product-level code overrides its category for items like apparel, food, and supplements. Tax codes are not inherited from parent categories, so each subcategory needs its own code.
How are refunds and credit notes handled?
Fulfil automatically sends both invoices and credit notes to TaxJar. When you create a credit note, TaxJar receives the refund information and adjusts your tax liability accordingly.
Does this work with TaxJar AutoFile?
Yes. Fulfil sends your transaction data to TaxJar, and you can then use TaxJar's AutoFile feature to file your returns from that data. All monetary amounts are converted to your company currency before they are sent.
Can I ask questions about my collected tax without building reports?
Yes. Fulfil is an agentic ERP, so you can ask the built-in AI Copilot to write SQL and answer questions about TaxJar liability and collected tax against your live books. You review the numbers without digging through screens.

Automate sales tax
with TaxJar.

See how Fulfil's TaxJar integration handles tax calculation and transaction sync for accurate filing.