01
I need to know what to file without becoming a sales tax expert.
A simple, low-cost way to import sales data, calculate tax, monitor obligations, and generate return-ready outputs.
StarterSales tax software that connects sales, purchasing, and certificates.
Calculate sales tax, review vendor-charged tax, manage exemption evidence, and prepare filing-ready returns in one workspace. Your team reviews the results and controls submission.
Starter is $199/month flat; Professional is $599/month flat. Both include sales tax compliance, purchasing use tax, and both exemption certificate managers. Start with a 30-day free trial or discuss a complex workflow.
Connect dataNormalize and reconcile sales, purchase, and certificate facts.
Calculate correctlyReview taxability, nexus, expected tax, variances, and remittance.
File confidentlyGenerate return-ready outputs, workpapers, and evidence trails.
Sales tax software should do more than multiply a sale by a rate.
Sales tax software should help get the right numbers onto the right returns, on time, in the places where you have obligations.
That means supporting the work before and after a calculation: data, obligations, review, filing support, use tax, exemption certificates, and evidence.
Data ingestion from the records your business actually uses
Nexus and obligation awareness without turning the page into a legal treatise
Taxability, rates, collected tax, expected tax, variances, and remittance review
Return-ready outputs, workpapers, portal-upload files, or customer-operated e-file handoffs where enabled
Use tax, exemption certificates, review controls, and evidence trails
Taxing-authority notice intake, due-date tracking, and customer-controlled response worksheets
Know where obligations are changing—and who owns the tax.
Nexus Monitoring evaluates sales and transaction counts against effective-dated state thresholds for the current and prior year. It separates physical and economic nexus, shows the data-through date, and marks approaching, met, below-threshold, and needs-review states so incomplete data never looks like zero exposure.
Marketplace-facilitator treatment uses explicit channel and jurisdiction responsibility facts. Collection, remittance, reporting, merchant-of-record, seller, and facilitator roles stay reviewable; ambiguity blocks a conclusion instead of allowing a provider name to decide it.
Prepared for your review. Submitted by you.
- State-specific worksheets and return packages
- Portal-upload files and supported customer-operated e-file handoffs
- Reviewer approval, reconciliation, and preserved evidence
- No return submission, tax remittance, money movement, or authority representation by Prophit.ai
Scope: US sales and use tax. Prophit.ai is not a global VAT, GST, or e-invoicing platform.
Choose by complexity first, plan second.
Buyers do not usually think in software packaging language. Start with the way your business actually handles sales and use tax work today.
02
I manage sales tax across people, locations, states, channels, or filing workflows.
Multi-user and multi-location workflows for calculation, reconciliation, use tax, returns, and filing support.
Professional03
I manage complex tax operations across systems, entities, certificates, audits, and controls.
A configurable sales and use tax platform with integrations, AI-assisted review, evidence trails, permissions, and enterprise controls.
Enterprise04
I already have sales tax software, but my team still does too much manually.
A more connected workflow that reduces fragmentation between data, decisions, returns, review, and evidence.
Professional or EnterpriseStarter
Import
Bring sales activity into a focused workspace.
Professional
Reconcile
Coordinate recurring work across users and locations.
Enterprise
Control
Connect systems, permissions, review, and evidence.
Clarity without becoming a sales tax expert.
For small sellers, the first question is often simple: what does this cost, and what do I actually get for that price? Sales tax software should be clear about whether it only calculates tax, or whether it helps turn sales data into return-ready numbers and filing support.
At minimum, small sellers need a way to import sales data, calculate tax correctly, and generate the return-ready output they need.
When sales tax becomes a workflow.
Growing businesses do not usually struggle because multiplication is hard. They struggle because the workflow becomes too broad for one person, one spreadsheet, or one basic tool.
The inflection point is not only revenue. It is the moment your team can no longer confidently say that every sale and purchase has been reviewed for sales and use tax consequences.
Start ProfessionalUsersLocationsReconciliation
Professional workflows help with:
- Multi-user and multi-location coordination
- Monthly filing workflows and recurring tax work
- Reconciling sales tax numbers back to business records
- Use tax and sales tax paid to vendors
- Exemption certificates that affect tax treatment
Sales tax software as an operating system.
Enterprise sales tax software is not primarily about multiplying a transaction amount by a rate. The hard part is everything around the calculation: data, decisions, workflows, review, filings, evidence, permissions, and controls.
An ERP may hold the data, but that does not mean sales tax is handled. Prophit.ai can support practical integration patterns at the level the organization is comfortable with, from controlled periodic data access to deeper workflow integration where appropriate.
Plan a meetingSystemsControlsEvidence
Enterprise teams often need:
- Multi-system ingestion and configurable integration depth
- Multi-entity, multi-location, and permission-aware workflows
- Review controls and controlled disclosure
- Exemption certificates connected to compliance decisions
- Use tax and purchasing-side workflows
- Audit-ready evidence and workpapers
AI where it helps. Human review where it matters.
AI is not the user's goal. Accurate, timely filing is the goal. Prophit.ai uses AI-assisted workflows where they can help normalize data, extract tax facts, classify transactions, prioritize review, and explain variances.
Prophit.ai does not ask buyers to trust a black box. Reviewable recommendations, evidence, and workflow control support human tax judgment.
AI-assisted, human-reviewable
AI-assisted normalization of messy source data
Extraction of tax facts from transactions, invoices, and files
AI-assisted classification and context review
Prioritization of exceptions, material items, and lower-confidence issues
Variance explanations that support human-reviewable decisions
Reduced implementation friction through more flexible data handling
Compare the workflow before choosing the vendor.
A calculation API, a filing service, and a review workspace solve different problems. Compare the same scope: purchasing use tax, certificates, integrations, reviewer control, and who submits the return.
Sales tax software pricing: flat per organization — bundles or à-la-carte modules, both published.
Every plan includes sales tax compliance, purchasing (use) tax compliance, and both exemption certificate managers. No per-state fees, no per-filing credits, no certificate add-on.
| Plan | Price | Scope | Includes |
|---|---|---|---|
| Free Trial | $0 for 30 days | 1 user · 1 location | Sales Tax Compliance, Purchasing Tax Compliance, sales and purchasing exemption certificates |
| Starter | $199/month flat | 1 user · 1 location | Everything in the trial, self-serve, standard support |
| Professional | $599/month flat | Up to 5 users · 4 locations | Starter plus Analytics & Reporting and the AI Sales Tax Assistant; priority support |
| Enterprise | Custom | Configured users and locations | Configured workflows, integrations, controls, services, and support |
What to look for when choosing sales tax software.
Before choosing sales tax software, ask whether the tool supports the outcome: right numbers, right returns, on time, in the places where you have obligations.
Read the buyer guideOutcome
- Accuracy
- Timeliness
Workflow
- End-to-end workflow
- Implementation burden
- Data flexibility
Coverage
- Use tax coverage
- Exemption certificate support
Control
- Evidence and audit trail
- Tax notice workflow
- Configurable human review
- Affordability
Connect data. Calculate correctly. File confidently.
Prophit.ai frames sales tax software as a full sales and use tax lifecycle. Nexus is an ongoing layer above the workflow that helps determine where the workflow needs to run, not merely a one-time setup step.
- 1
Ingest or connect data
- 2
Normalize and reconcile transactions
- 3
Monitor nexus and obligations as an ongoing layer above the workflow
- 4
Classify transactions for tax treatment
- 5
Calculate collected tax, expected tax, variances, and remittance
- 6
Review AI-assisted recommendations
- 7
Generate returns, workpapers, portal-upload files, or a customer-operated e-file handoff where enabled
- 8
Preserve the evidence trail behind each filing position
- 9
Track taxing-authority notices and prepare customer-reviewed response worksheets
NexusUse taxExemptionsEvidence
Sales and use tax compliance software for connected workflows.
Buyers searching for sales and use tax compliance software need one platform that connects sales-side calculation and filing, purchasing-side use tax review, exemption certificate evidence, API-driven calculation where configured, and filing-ready period-close workflows.
Sales-side compliance
Sales tax calculation, obligation tracking, collected tax reconciliation, filing-ready returns, and period-close review — with exemption certificate context tied to tax treatment where configured.
Purchasing-side compliance
Use tax review, vendor-charged tax comparison, exemption-aware purchasing workflows, and filing-ready use tax outputs connected to the same compliance platform.
One modular platform for different levels of complexity.
Prophit.ai connects sales tax, use tax, exemptions, analytics, AI-assisted review, and filing support in a modular workflow. A small seller can start focused. A growing team can add collaboration and visibility. An enterprise tax team can configure controls and review depth.
Software should augment tax professionals, not bury them under configuration, exports, and manual cleanup.
Choose the level of control you want.
- Exception-based review
- Deeper transaction-level review
- Materiality thresholds
- Root-cause analysis
- Human validation of AI-assisted decisions
- Workflow control
Sales tax software questions, answered plainly.
What is sales and use tax compliance software?
Sales and use tax compliance software connects sales-side calculation and filing, purchasing-side use tax review, exemption certificate evidence, and filing-ready period-close workflows in one platform. Prophit.ai is modular so teams can start with the workflows they need and expand as complexity grows.
When should I review use tax, filing, or API pages instead of this overview?
Use the use tax software page when purchasing-side review, vendor-charged tax, or accrual exposure is the primary question. Use the sales tax filing software page when period-close filing support, collected tax reconciliation, and filing-ready outputs are the focus. Use the sales tax API page when real-time calculation inside checkout, billing, or ERP systems is the priority. This page is the category overview that connects those workflows.
Why connect sales tax, use tax, exemption certificates, and API calculation?
Indirect tax work rarely stays in one lane. Exemption status affects sales and purchasing decisions, use tax exposure shows up in AP review, filing workflows need the same evidence, and API calculation should connect to review and filing-ready outputs instead of living in a separate silo.
What is sales tax software?
Sales tax software helps a business turn sales activity into return-ready numbers, filing support, workpapers, and records. The best fit depends on the complexity of the business, not only its size.
Do I need sales tax software if I only sell in one state?
Possibly. Sales tax problems can happen entirely inside a home state if a seller registers or collects tax but does not complete the filing and remittance workflow.
Is sales tax software only for ecommerce?
No. Ecommerce can create sales tax complexity, but physical locations, services, invoices, exempt customers, purchases, and multi-location operations can also create sales and use tax work.
What is the difference between sales tax and use tax?
Sales tax is generally charged to customers on taxable sales. Use tax is generally self-assessed when tax was not collected, or when a purchase needs review. Prophit.ai treats sales tax and use tax as connected parts of the same compliance picture.
Can sales tax software file returns?
Prophit.ai prepares returns, workpapers, portal-upload files, and supported e-file handoffs for your reviewer. Your organization submits the return and remits the tax. Prophit.ai does not file, transmit a return, move money, or represent you before a taxing authority.
Does Prophit.ai monitor economic nexus?
Yes. Nexus Monitoring compares state-by-state sales and transaction counts with effective-dated thresholds for the current and prior calendar year, distinguishes physical from economic nexus, and surfaces approaching, met, below-threshold, and needs-review states. The dashboard records the data-through date so missing or stale activity is not presented as zero.
How does Prophit.ai handle marketplace facilitator sales?
Marketplace responsibility is carried as an explicit, effective-dated fact. Seller, facilitator, merchant-of-record, collection, remittance, and reporting roles remain reviewable by channel and jurisdiction; unknown or contradictory responsibility fails closed instead of being inferred from a marketplace name.
Can Prophit.ai help manage taxing-authority notices?
Yes. Tax Notices accepts supported uploads and forwarded .eml files, records OCR and classification status, separates overdue, due-soon, and due-date-unavailable items, and prepares a response worksheet. Your team reviews and sends any response; Prophit.ai does not contact the authority or represent you.
Does Prophit.ai support VAT or non-US indirect tax?
No. Prophit.ai is deliberately focused on US sales and use tax, including state and local jurisdictions, marketplace-facilitator rules, exemption evidence, nexus monitoring, and filing-ready workflows. It is not positioned as a global VAT, GST, or e-invoicing platform.
Does Prophit.ai replace my accountant?
No. Prophit.ai is designed to support owners, accountants, finance teams, and tax professionals with data, calculation, review, returns, and evidence. Software should augment tax judgment, not replace it.
What does AI do in sales tax software?
AI is not the goal. Accurate, timely filing is the goal. AI-assisted workflows can help normalize data, extract tax facts, classify transactions, explain variances, and present reviewable recommendations.
Which plan fits my business?
Starter is usually the fit for individuals and small sellers. Professional fits growing teams with more users, locations, and workflows. Enterprise fits complex tax operations that need configured workflows, controls, and support.
Find the sales tax workflow that fits your business.
Start focused with Starter, add team workflows with Professional, or talk with Prophit.ai about configured Enterprise operations.
- Flat pricing per organization: $199/month Starter and $599/month Professional, with no per-state, per-filing, or per-transaction fees — plus a published à-la-carte module menu.
- Sales-side and purchasing-side exemption certificate management are included in every plan, or standalone from $49/month per side.
- AI-native since 2019: AI reads your documents, classifies every transaction for taxability, validates exemption certificates, and answers questions in-app — checked against published state rules, with a person approving every material decision.
- Human review is a designed control: filing-ready outputs are approved by a reviewer, and unresolved facts fail closed instead of being guessed.
- Marketplace-facilitator sales are recognized and treated distinctly from direct sales, so facilitator-collected tax is not double-counted.
- Deliberately US-focused: United States sales and use tax done deeply, rather than global VAT done thinly.