How do I handle sales tax for e-commerce businesses?
Sales tax for e-commerce comes down to one concept: nexus. Nexus means you have enough connection to a state that you’re required to collect and remit sales tax there. Before 2018, that meant physical presence. After the Supreme Court’s Wayfair decision, states can require collection based on economic activity alone.
Most states set economic nexus thresholds at $100,000 in sales or 200 transactions per year. A few use different numbers. When you cross that threshold in a state, you need to register, start collecting tax, and file returns. Miss this step and you’re accumulating liability every time you make a sale.
Here’s where it gets easier for some sellers. Marketplace facilitators like Amazon, eBay, Etsy, and Walmart are required to collect and remit sales tax on your behalf in most states. If you sell exclusively through these platforms, they handle the sales tax piece. You still need to track this for your records, but you’re not filing separate returns for marketplace sales.
Direct sales through your own website are different. Shopify, WooCommerce, BigCommerce, and similar platforms don’t collect sales tax automatically unless you configure them to. You’re responsible for determining where you have nexus, registering with those states, setting up correct tax rates in your platform, and filing returns.
The practical steps look like this. First, figure out where you have nexus by reviewing your sales by state. Many sellers are surprised to find they’ve crossed thresholds in states they never thought about. Second, register for a sales tax permit in each state where you have nexus. Don’t skip this step. Collecting without a permit can create bigger problems than not collecting at all. Third, configure your e-commerce platform to charge the right rates. Sales tax rates vary by state, county, and even city. Some products are exempt in certain states. Massachusetts exempts clothing under $175, for example. Fourth, file returns on schedule. Some states want monthly filings, others quarterly or annually, depending on your volume.
Getting sales tax compliance right from the start saves you from penalties and back taxes later. Tools like TaxJar and Avalara integrate with most e-commerce platforms and automate rate calculation, filing, and remittance. The subscription cost often pays for itself once you’re collecting in more than a handful of states.
The bigger risk isn’t getting audited. It’s accumulating years of uncollected tax liability because you didn’t realize you had nexus. States are getting better at identifying out-of-state sellers who should be collecting. Working with an Andover, MA bookkeeper who understands multi-state sales tax can help you get registered correctly and stay compliant as you grow.
If you’re selling online and haven’t looked at your sales tax obligations recently, start with a state-by-state sales report. That tells you where you stand today and what needs to happen next.
The Merrimack Valley's Trusted Accounting Partner
The Next Step:
A 15-Minute Call
Tell us about your business and what you're dealing with. We'll listen, ask a few questions, and give you a straightforward quote.
More Questions
How do I track patient co-pays and insurance payments?
Use your practice management software to track what patients owe and what insurance should pay, then reconcile both against actual deposits. The key is matching expected payments to what actually arrives in your bank account.
Read answerHow do I handle HIPAA compliance in my bookkeeping records?
Bookkeeping records often contain protected health information like patient names on invoices and insurance details. You need technical safeguards, access controls, and Business Associate Agreements with any external bookkeeper who touches that data.
Read answerShould I use a payroll service or handle payroll myself?
DIY payroll can work with one or two employees in a single state if you use software and have time to manage compliance. For most businesses with multiple employees or multi-state operations, outsourcing saves time and reduces the risk of costly penalties.
Read answerWhat are the business tax requirements in Massachusetts?
Massachusetts businesses face several tax obligations including entity-level taxes, sales tax collection, payroll withholding, and annual reporting. The specific requirements depend on your business structure and activities.
Read answerShould my chiropractic office use cash or accrual accounting?
Most chiropractic practices benefit from accrual accounting because of insurance billing. Cash accounting can hide how much revenue is tied up in unpaid claims and make busy months look slow.
Read answerWhat are use taxes and when do they apply?
Use tax applies when you buy taxable goods from sellers who don't collect your state's sales tax. You're responsible for calculating and remitting it yourself, typically on out-of-state and online purchases.
Read answer
