Developer-First API
Built for speed, reliability, and ease of integration
RESTful API
Clean, predictable REST endpoints with comprehensive documentation
Webhooks
Real-time notifications for filing status, refund updates, and more
OAuth 2.0
Secure authentication flow for accessing user tax data
Rate Limiting
Generous rate limits with automatic scaling for enterprise
JSON Responses
Consistent, well-structured JSON for all API responses
Sandbox Environment
Full-featured test environment with sample data
Common Use Cases
See what you can build with Taxu API
Embedded Refund Estimator
Add a refund calculator widget to your app or website
const estimate = await taxu.estimateRefund({
income: 75000,
filingStatus: 'single',
deductions: ['standard']
});Automated Filing
Integrate tax filing into your payroll or accounting software
const filing = await taxu.createReturn({
userId: 'user_123',
forms: [w2Data, form1099Data],
autoFile: true
});Tax Data Sync
Keep tax information synchronized across platforms
taxu.webhooks.on('return.filed', (data) => {
console.log('Return filed:', data.returnId);
syncToDatabase(data);
});Embeddable Components
Drop-in UI components for instant integration
Refund Calculator Widget
Drop-in refund estimator for your website
<script src="https://cdn.taxu.ai/widget.js"></script>
<div data-taxu-widget="refund-calculator"></div>Interactive calculator with real-time estimates
Tax Chat Assistant
AI-powered tax help for your users
import { TaxuChat } from '@taxu/react';
<TaxuChat apiKey={process.env.TAXU_API_KEY} />Full-featured chat interface with AI agents
Document Uploader
Secure document upload with OCR parsing
<TaxuUploader
onUpload={(doc) => console.log(doc)}
acceptedTypes={['W2', '1099', 'receipts']}
/>Drag-and-drop with automatic form detection
Webhook Events
Real-time notifications for critical tax events
return.createdNew tax return initiated
return.filedReturn successfully submitted to IRS
refund.issuedRefund processed and sent
document.parsedDocument OCR completed
subscription.updatedUser subscription changed
audit.flaggedPotential audit risk detected
Example Webhook Payload
{
"event": "return.filed",
"timestamp": "2025-04-15T10:30:00Z",
"data": {
"returnId": "ret_abc123",
"userId": "user_xyz789",
"taxYear": 2024,
"status": "accepted",
"refundAmount": 3250.00
}
}Trusted by Industry Leaders
See how companies use Taxu API in production
Uber
Driver Tax Summaries
Automatic year-end tax summaries for 5M+ drivers
Gusto
Embedded Filing
One-click filing for contractors and employees
Mercury
Startup Tax Automation
Auto-fill Delaware franchise tax for startups
QuickBooks
Tax Data Sync
Real-time sync of deductions and expenses
API Pricing
Flexible plans that scale with your business
Official SDKs
Get started faster with our official client libraries