If you are shipping product to customers in multiple states, you are already dealing with sales tax complexity. If you are adding new channels, new customer types, or new product lines, that complexity compounds - and at some point, the spreadsheet you are using to track exempt certificates stops being a workaround and starts being a liability.
The Complexity Builds Before You Notice It
Sales tax does not get hard all at once. It gets hard incrementally - a new state here, a new customer type there, a product line that is taxed differently depending on where it ships. By the time the burden is visible, you are usually already behind.
In the first half of 2025 alone, states made 408 sales tax rate changes - a 24% increase from the same period the year before.1 For a distributor managing thousands of SKUs across dozens of shipping destinations, manually tracking those changes is not a process. It is a full-time job.
Where Distributors Get Caught
The audit exposure is real. States presume that sales are taxable unless you can prove otherwise. That means the burden of documentation falls on the seller - not the customer. If a certificate is missing, expired, or applied to the wrong jurisdiction, the state can treat those transactions as taxable and assess back taxes, penalties, and interest across the full audit period.
Fifty-four percent of U.S. businesses still manage exemption certificates manually, and only 3% have fully automated the process.2 For distributors with a high volume of resale and exempt transactions, that is significant risk sitting in a spreadsheet somewhere.
The issue shows up long before an audit. It shows up when an exempt customer calls to ask why they were charged tax. It shows up when your AR team is issuing credit memos to fix invoices that went out wrong. It shows up during month-end close when someone is reconciling what was charged against what should have been.
The Three Things Avalara Needs to Get Tax Right
Getting sales tax right for a distributor comes down to three things: knowing where you have nexus, knowing how your products are classified, and knowing which customers are taxable or exempt. If any one of those is wrong or out of date, the calculation is wrong.
That is the framework Avalara works from. Once nexus is established in the Avalara portal, tax is automatically derived for every connected system - Business Central, your e-commerce platform, and any EDI connections. Product tax codes are mapped once. Avalara maintains the rates and rules behind those codes so your team does not have to update them manually when a state changes its rules. And customer exemption status is tied to actual certificate documentation, not just a flag in a field.
In our on-demand workshop, Connecting the Dots in Distribution, the Avalara team walked through this live - including what the exemption certificate process looks like in practice, how addresses are validated down to the latitude and longitude level for accurate jurisdiction mapping, and what the tax calculation actually shows inside Business Central before you post an invoice.
Working Inside the Systems Your Team Already Uses
One of the real-world friction points with compliance automation is adoption. If the tool requires your team to log into a separate system, maintain records outside the ERP, or leave Business Central to verify a certificate, it does not get used consistently. And inconsistent use creates exactly the documentation gaps that create audit exposure.
Avalara's integration with Business Central means your team never has to leave the system they are in. Tax is calculated and returned in real time - no lag, no manual lookup. Certificates are stored and retrievable inside Business Central. Address validation is a single click from the customer card. The workflow your team already follows does not change; it just produces accurate, defensible results.
When you are managing thousands of transactions across multiple states, that consistency is what keeps you clean.
Tariffs Are Now Part of the Picture
Sales tax is the compliance layer most distributors think about first, but it is not the only one. Tariff rates and rules are changing more frequently, and the impact on landed cost and margins can be significant. When duties are handled late or estimated incorrectly, pricing surprises follow - sometimes weeks after the order shipped.
Avalara's coverage extends to tariff determination as well, giving distributors the same automation and consistency for import duties that they get for domestic sales tax. The compliance burden does not stop at the border, and the tools to manage it should not either.
What Automation Actually Changes
The distributors we work with who have moved to automated tax compliance do not describe the change in terms of time saved. They describe it in terms of confidence. Their team is not second-guessing rates. Their month-end close is not held up by tax reconciliation. Their audit response is a retrieval, not a reconstruction.
Non-compliance costs businesses an average of 4.3% of revenue.3 For a mid-market distributor doing $50M, that is more than $2M in potential exposure. Automation does not eliminate all risk, but it does eliminate the variables that are entirely within your control - the missing certificates, the stale rates, the jurisdiction errors.
The full picture of how Avalara works alongside Business Central - live tax calculation, the exemption certificate flow, and the tariff discussion - is covered in our on-demand workshop, Connecting the Dots in Distribution. Watch it to see how these pieces fit together for an operation like yours.
CITATIONS
- "6 Sales Tax Statistics to Know Going into 2026." Anrok, 2025. In the first half of 2025, states made 408 sales tax rate changes - a 24% increase compared to the first half of 2024. https://www.anrok.com/resources/sales-tax-statistics
- "Effective Strategies for US Sales Tax Exemption Certificate Management." Avalara, 2024. 54% of U.S. businesses manage exemption certificates manually; only 3% have fully automated the process. https://www.avalara.com/blog/en/europe/2024/05/effective-strategies-for-sales-tax-exemption-certificate-management.html
- "24 Multi-State Sales Tax Statistics Every Growing Business Should Know." Zamp, 2024. Non-compliance costs average 4.3% of revenue. https://zamp.com/blog/multi-state-sales-tax-statistics/
