Full-Service California Sales Tax Solutions: Compliance, Savings, and Audit Defense

01 — Nexus Determination & Registration

We help you determine if your business has a sales tax nexus in California (physical or economic). If you meet the $500,000 annual sales threshold or have any physical presence even a warehouse or employee, we’ll register you for a California Seller’s Permit with the CDTFA at no cost to you, ensuring you’re legally authorized to collect tax. Our team handles the entire application process, from gathering your business details (EIN, entity type, NAICS code) to submitting the forms and securing your permit, so you never miss a compliance deadline. This foundational step is critical for remote sellers and e-commerce businesses across the USA who are now required to collect and remit tax due to the Wayfair decision.

02 — Accurate Sales Tax Calculation & Collection

California’s destination-based system means you must collect the correct combined rate based on your customer’s ship-to address not your location. We help you set up accurate tax calculation in your shopping cart (Shopify, WooCommerce, BigCommerce), POS system, or marketplace (Amazon, eBay, Etsy) by integrating the latest CDTFA rate tables. Our team ensures you collect the base state rate of 7.25%, plus any applicable county, city, or special district taxes, which can push the total rate as high as 10.75% or more in some areas like Alameda County (10.75%) or the city of El Cerrito (10.25%). We also guide you on product taxability what’s taxable (tangible personal property, certain digital goods, repair services) versus what’s exempt (most groceries, prescription medications, certain clothing under $110). By automating rate selection and verifying product codes, we prevent under collection penalties, customer disputes, and audit triggers, giving you full confidence that every transaction is compliant with California law.

03 — Exemption & Resale Certificate Management

Not every sale is taxable. Perhaps you sell to a tax-exempt nonprofit, a government agency, or a reseller who will later sell the product to an end consumer. In these cases, you need to collect and manage exemption certificates properly to avoid paying tax out of pocket on sales that should be tax-free. Our team helps you create, validate, and store resale certificates (Form CDTFA-230) and other exemption documentation for every qualifying customer, reducing your taxable sales and saving you money. We also provide guidance on common exemptions that benefit California businesses such as farm equipment, manufacturing and R&D equipment (partial exemption), renewable energy equipment (solar panels, wind turbines), and certain educational materials. By keeping your exemption certificates organized and audit-ready, we help you defend every zero‑tax sale during a state review, protecting your cash flow and minimizing your overall sales tax liability.

04 — Timely Filing & Payment Management

Missing a filing deadline or payment due date triggers automatic penalties 10% of the tax due, plus daily interest. Even filing a late zero return incurs penalties. We eliminate that risk entirely. Our team manages your full filing calendar based on your assigned frequency (annual for sales under $100,000, quarterly for $100,000–$499,000, or monthly for $500,000 or more). We prepare and file your CDTFA sales and use tax returns on time, every time, whether you have sales or not. We also coordinate your tax payments, whether by ACH debit, credit card, or check, ensuring funds are available and remitted by the deadline. For businesses that also owe use tax on out-of-state purchases (e.g., equipment bought from an online retailer that didn’t charge tax), we help you report and pay that liability accurately. With our proactive filing system, you never face late fees, and you maintain a clean compliance record with the state of California.

05 — Audit Defense & Penalty Abatement

If the CDTFA selects your business for a sales tax audit, you need experienced representation. Our team has successfully defended clients in audits across California, from small retail shops to large e-commerce enterprises. We guide you through every step: gathering requested documentation (sales records, exemption certificates, shipping logs), preparing responses to CDTFA information requests, and negotiating any proposed assessments. If the audit reveals deficiencies, we help you minimize penalties by asserting reasonable cause (e.g., illness, natural disaster, reliance on professional advice) and, where appropriate, we negotiate penalty abatement under Revenue and Taxation Code §6592. In cases where the auditor proposes negligence (10% penalty) or fraud (25% penalty) findings, we advocate aggressively to reduce or eliminate those charges. Our goal is to resolve the audit as quickly and painlessly as possible, with the smallest possible liability, so you can return to running your business without lingering tax worries.