Sales Tax Software Pricing Index 2026

Modeled year-one cost by number of filing states

Each cell annualizes the published inputs for a seller filing monthly in that many states. Prophit.ai covers preparation and review; Avalara Core, TaxJar AutoFile and Anrok include submission services under their terms. Tax remitted, your staff or advisor time, and separately purchased production engines are excluded. “Quoted” means the vendor publishes no price for that scenario — not that it is free or unavailable.

What the published prices show

• These rows have different service scopes. The Prophit.ai rows model module-based subscriptions, not pay-for-use task charges. Avalara Core includes managed filing and remittance; Prophit.ai prepares filing-ready outputs for customer-controlled submission. Confirm integrations, volumes and SST eligibility in a quote. The conditional SST package is not modeled as a universal state fee.
• Pricing model matters more than headline price. A seller filing in 10 states pays $2,388 on a flat plan, $7,990 on a per-state entry tier, $12,000 on per-market pricing, and $6,368 once per-filing credits are added — from list prices alone.
• Per-state and per-filing pricing crosses the flat plan quickly: at 3 states the published per-state entry tier already exceeds a full year of the flat $199/month plan.
• Only 5 of the 6 vendor plans surveyed publish enough to compute a year-one cost at all. Vertex and Anrok ecommerce require a quote. Avalara Core, standard Anrok Starter and the modeled TaxJar plans have public inputs, subject to their eligibility and volume terms; other scenarios may require a quote.
• Filing volume, not transaction volume, is what compounds on the per-filing model: monthly filing in 10 states is 120 filings a year, and only 2 to 4 of them are included.
• Flat pricing is not automatically cheaper: at one filing state the published per-state entry tier ($799) and per-market pricing ($1,200) both come in under the flat plan. The models cross as states are added.
• Every number here is a published list price, not a negotiated quote. Real quotes commonly differ — which is the point: list prices are the only thing a buyer can compare before talking to sales.

Every input, as published

Read from each vendor's own pricing page on 2026-10-14. Follow the links to confirm before relying on any figure.

Methodology and limits

The model assumes one return per state per month for this example, twelve months of subscription, and the vendor's published entry tier. It adds per-filing charges only where the vendor publishes them, and it never estimates a price a vendor has not published.

• Billing basis: Avalara uses its advertised annual rate. Prophit.ai and TaxJar subscriptions use twelve monthly payments; Anrok uses its monthly market rate. This is an illustration, not the lowest possible quote.
• Excluded: tax remitted, staff/advisor work, registration, implementation, annual subscription discounts, prepaid filing bundles, negotiated discounts, overages, and separately priced modules.
• TaxJar discounts: annual subscribers can purchase discounted filing bundles. See the published AutoFile bundle options before budgeting for 240 filings.
• Volume: TaxJar's published tiers are quoted at 200 orders/month; higher volumes are quoted, so this model does not extend them.
• Filing cadence: states assign frequency per account. Quarterly or annual filers on per-filing pricing pay materially less than this monthly model.
• Prophit.ai: figures annualize the module-based subscription prices with no annual discount assumed; your agreement governs commitment terms. These are not pay-for-use quotes. Starter includes one user/location; Professional includes five users/four locations. Published transaction and certificate limits apply. Submission and payment remain with your team or advisor; production engines are separate.
• Not a quality ranking: price is one input. Coverage, integrations, filing services, and support differ substantially between these products.