Sales Tax Calculation Automation

Enable real-time tax calculations by integrating your system with our tax engine.

When you have sales tax nexus in a US state, you’ll have to add sales tax when you bill customers in that state – either at checkout or when you invoice them.

  • Connect your checkout or billing system to Yonda to calculate the right amount of tax
  • No-code setup options available
  • Practical advice depending on your specific system

Speak to us for all your sales tax requirements.

We’ll ensure you’re selling compliantly across the US.

Free Tax Consultation

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Used by eCommerce, SaaS and Digital companies,
selling compliantly in the United States.

You Have 3 Options With Us!

There are many ways to solve the tax calculation problem – it really depends on your checkout or billing process. Speak to Yonda and we’ll give you practical advice on the setup that’s best for your business:

Our experts can assist you in setting up tax calculation in your system if it has native functionality

Use our resources to customize your system to calculate tax itself

Trusted by Hundreds of Tax Compliant Companies

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The Yonda Tax Advantage

Stop Stressing, Start Scaling

Don’t settle for just tax support. We deliver a powerful tax technology solution, expertly managed by experienced professionals. We handle everything, so you can focus on what matters: growing your business.

Simple, Predictable Pricing

Forget hidden fees. We offer transparent monthly plans for a fully managed sales tax experience. You’ll know exactly what you’re paying for, every month.

Our proven process

  1. Deep dive: We get to know your business, products, and tax obligations.
  2. Effortless setup: Our experts leverage cutting-edge technology to set up your tax system efficiently.
  3. Seamless management: We handle all aspects of sales tax, giving you back valuable time and peace of mind.

Partner with us and watch your business thrive.

Connect your system to Yonda with prebuilt integrations

Use some of our easy integrations to calculate tax rates at checkout.

How to address US tax rates?

US sales tax is a state-based tax. Each state has its own sales tax policy and rate. In most states, local sales taxes are imposed in addition to the state sales tax. Therefore, you can have customers in the same state, and even the same city, but you might have to charge them different tax rates. On top of that, some products have special tax rates that need to be applied as well.

Start Monitoring Your Nexus

State and ZIP: Essentials for tax compliance

The tax rate is determined by where the customer is based, so it’s impossible to know what rate to charge if you don’t have their address. You must collect the billing address of all customers (at very least their state and ZIP code) – otherwise, it’s impossible to determine the appropriate rate.

Learn More About Tax Rates


How do I calculate sales tax?

There’s a simple formula:

  • Convert the sales tax rate into a decimal (divide by 100).
  • Multiply the sales tax rate (in decimal form) by the item’s price.
  • This will give you the amount of sales tax to be charged. For example, if the sales tax rate is 8% and the item costs $10, the sales tax would be $0.80 (8% / 100 = 0.08 x $10 = $0.80).
Are all items taxable?

No, some items may be exempt from sales tax. This varies by state and item type (e.g., groceries in some states).  You’ll need to research which items are taxable in your area.

Do I need to register to collect sales tax

If your sales exceed a certain threshold (varies by state), you’ll likely need to register to collect and remit sales tax.

Our Other Services

Since we are a full tax compliance solution we can offer you much more than just help with your sales calculation. Here are some of our other services that you may find handy:


Nexus Monitoring

Free sales tax nexus monitoring helps you understand your tax obligations in every state. We monitor your sales in each jurisdiction, letting you easily stay on top of which US states you need to collect sales tax in, based on your sales and order volume.

Learn More

Sales Tax Registration

Our team of sales tax experts understands the nuances of each state’s regulations. Simply fill out a user-friendly form, and we’ll handle the entire registration process for you. We’ll ensure you’re registered in all the necessary states, communicate directly with tax authorities on your behalf, and save you valuable time and effort.

Learn More

Automated Tax Filing

Filing sales tax returns just got easier! Simply provide your US sales data, and Yonda takes care of the rest. We connect securely to your website, accounting, or payment systems to automatically import your sales data each month. No manual entry is required!

Learn More