Do I need to register if I only sell online to Concord customers?

Generally yes; if you have sales into Concord you must review nexus rules and register with the CDTFA if the business meets registration thresholds or has physical or economic nexus.

How do I find the exact combined tax rate for a Concord address?

Use the CDTFA city and rate lookup on the CDTFA website or contact CDTFA for the precise point-of-sale combined rate.

Who enforces local sales tax in Concord?

The California Department of Tax and Fee Administration enforces sales and use tax; the City of Concord enforces local business license requirements.

Concord Sales and Use Tax Rates - Retailers Guide

Taxation and Finance California 3 Minutes Read · published February 21, 2026

Concord, California retailers must understand local sales and use tax obligations before selling tangible goods. This guide explains how rates are set, where to register, how to collect and remit tax, and what enforcement steps apply for noncompliance. It covers the role of the California Department of Tax and Fee Administration and the local city business license processes so you can take concrete actions to register, file returns, and respond to notices.

How rates are determined

Sales and use tax in Concord combines the California statewide base rate with county and local district taxes. Local measures and special district levies may change the combined rate that applies at the point of sale; retailers must charge the rate applicable to the transaction location.

Registering and permits

Obtain a seller's permit from the California Department of Tax and Fee Administration (CDTFA) before making retail sales.
Keep accurate sales records and exempt sale documentation for audit and reporting.
Collect the correct combined rate at point of sale and remit on schedule based on filing frequency.

Penalties & Enforcement

Enforcement of sales and use tax, registration, returns and audits is performed by the California Department of Tax and Fee Administration (CDTFA). For city-administered business licensing and local compliance questions contact the City of Concord business license office. For official rules, rates and registration see the CDTFA resources linked below.California Department of Tax and Fee Administration - Sales and Use Tax Rates^[1]

Monetary fines and interest: specific penalty amounts and interest schedules are not specified on the cited page.
Escalation: details for first, repeat, or continuing offences are not specified on the cited page.
Non-monetary sanctions: administrative assessments, liens on business property, and referral to collections or court may be used by the CDTFA; specific actions vary by case.
Enforcer and complaint pathway: CDTFA handles audits, assessments and collections; contact via CDTFA website for filing disputes or reporting noncompliance.^[1]
Appeals and review: administrative appeal routes exist with CDTFA; specific time limits for filing appeals are not specified on the cited page.

If you receive a notice, act quickly to request clarification or appeal within the time shown on the notice.

Applications & Forms

Seller's permit / CDTFA registration - purpose: authorize retail sales and enable tax collection; application available through CDTFA online registration (fees: not specified on the cited page).
Filing returns and payment forms: file electronically via CDTFA online services; specific paper form names or numbers are not specified on the cited page.

Action steps: apply for a seller's permit, display permit information as required, set up point-of-sale tax collection at the combined rate, file returns on schedule, and respond to any CDTFA notices promptly.

Common violations

Operating without a seller's permit.
Failing to collect or remit the correct local combined rate.
Poor documentation of exempt sales or resale certificates.

FAQ

Do I need to register if I only sell online to Concord customers?: Generally yes; if you have sales into Concord you must review nexus rules and register with the CDTFA if the business meets registration thresholds or has physical or economic nexus.
How do I find the exact combined tax rate for a Concord address?: Use the CDTFA city and rate lookup on the CDTFA website or contact CDTFA for the precise point-of-sale combined rate.^[1]
Who enforces local sales tax in Concord?: The California Department of Tax and Fee Administration enforces sales and use tax; the City of Concord enforces local business license requirements.

How-To

Determine whether your business has nexus in California and in Concord.
Apply for a seller's permit via CDTFA online registration before you begin retail sales.
Configure your point-of-sale system to charge the correct combined rate for the Concord transaction address.
File regular returns and remit collected tax by the CDTFA deadlines for your filing frequency.
If you receive a notice, follow the CDTFA instructions to pay, request a payment plan, or file an appeal as directed on the notice.

Key Takeaways

Register with CDTFA before selling and collect the correct combined local rate.
Keep clear records and exemption certificates to support returns and audits.
Contact CDTFA or the City of Concord business license office for official guidance and to address notices.

Help and Support / Resources

[1] California Department of Tax and Fee Administration - Sales and Use Tax Rates