As an Ecommerce Accounting Firm, we are able to scale kind of infinitely in a way that we weren’t before Zamp. Now, we can grow our sales tax practice and there’s no limit of what we could do because Zamp is willing to handle however much work we throw at them. Revenue-wise for our business, sales tax is becoming a very big revenue driver.
Real Sales Tax Relief for Tax, Accounting, and CFO Partners
Offer your clients complete peace of mind on sales tax without expanding your team's workload or expertise.
Trusted by Over 600 Leading E-Commerce & SaaS Brands
Completely Managed Service for Your Clients

Completely Managed Service for Your Clients
Z-Tax by Zamp combines innovative software with expert service to take care of your clients’ sales tax compliance effortlessly.
Expand Your Service Offering
Adding sales tax compliance to your services creates a valuable offer for clients struggling with complex tax rules and regulations. By leveraging Z-Tax, you can expand your company’s capabilities without stretching your team thin.
New Revenue Stream
With an outsourced sales tax filing solution, you can increase your recurring revenue with predictable margins. We can handle as much work as you need, so your team can stay focused on scaling your business and boosting revenue.
A Lot More Than Just Filing
Benefit from a full sales tax offering delivered via a managed solution. Your clients can say goodbye to worrying about nexus tracking, product taxability, sales tax calculations, registrations, filing, and more.
No Need to Become Sales Tax Experts
The Zamp Team is here to do the heavy lifting so that you can stay focused on your business and clients. Have questions? We are always just a phone call or email away.
Get startedThe Zamp Solution
Spending hours handling nexus tracking, registrations, and filing for your clients is a thing of the past. With Z-Tax by Zamp, we provide a completely managed service that handles all your clients’ sales tax needs.
Multi-Channel Coverage
Do your clients operate across various storefronts and marketplaces? Z-Tax is designed to make the compliance process easier, with integrations to platforms like Shopify, Stripe, QuickBooks, WooCommerce, and more to import transaction data.
Risk Monitoring and Alerts
We send proactive notifications when your clients reach nexus thresholds or compliance issues arise. We stay on top of data and state changes so you don’t have to.
Get Back Time
Your team gets back real time, unlike other tools that require constant attention and management. This means you can allocate more internal resources toward other revenue-generating activities for your clients.
Get startedThe Zamp Solution
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Our Values
We Care
We are an advocate for our customers. We're transparent, and we're here to provide timely and effective support.
We're Accessible
Whether it's through email, phone, or chat, you'll receive a timely response.
Build a World-Class Product
We believe there is a better way to address sales tax, and we're always improving.
Appreciate the Journey
We value relationships. From the internal story we are creating to the one we help our customers live, we are on the journey together.
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