Tomer MolovinskyCo-founder, Per Diem · CEO & Co-founder @ Per Diem (YC W21) | ex-Resy, OpenTable

Why Is Tax Not Showing at Checkout? | Per Diem FAQ

14 Sept 2026 · 1 min

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0:57

In this short instructional video, the speaker explains why sales tax may appear as zero at checkout when using Perdiem with Square POS. Perdiem does not set tax rates itself; it imports them from the point‑of‑sale system. The video walks through the exact steps to create a tax rate in the Square dashboard (Settings → Account and Settings → Payments → Sales Taxes → Create Tax, naming the tax, entering the percentage, selecting applicable locations and items, then saving) and then to pull that rate into Perdiem (Settings → Sync Point of Sale → Sync All). After syncing, the tax should automatically display at checkout. If the tax still does not appear, the speaker advises contacting support for further assistance.

Chapters

If your customers' orders aren't showing tax, here's the quick fix. Perdium doesn't set tax rates itself. It pulls them straight from your point of sale. So if checkout shows zero tax, the rate usually isn't set up on the point of sale side yet. First, in your Square dashboard, go to Settings, Account and Settings, Payments, then Sales Taxes. Click Create Tax, name it, enter your rate, And pick the locations and items it applies to, then save. Back in Perdium, go to Settings, Sync Point of Sale, and hit Sync All. That pulls the new tax rate in. And that's it! Tax now shows up automatically at checkout. No extra setup needed in Perdium. Still not showing after that? Reach out and we'll dig in with you.