US quarterly estimated tax calculator for freelancers - SE tax, safe harbor and ...
https://saylorinnovations.com/api/ustax/quarterlyOverview
US quarterly estimated tax calculator for freelancers - SE tax, safe harbor and four dated payments
Protocol
x402
Price
$0.01
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
Saylor Innovations US Quarterly
Source
bazaar
Indexed
2026-10-26 12:21:45
Health
Status
healthy
Latency (p50)
302ms
Uptime (30d)
100.0%
Reliability Score
90/100
Last Checked
2026-10-28 15:23:58
Last Healthy
2026-10-28 15:23:58
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"filing_status": "single",
"net_se_income": "80000"
},
"type": "http"
}
Output Schema
{
"example": {
"net_se_income": 80000,
"quarterly_payments": [
{
"amount": 4725,
"due": "2026-04-15"
}
],
"self_employment_tax": 11303.64,
"total_federal_tax_estimate": 21000
},
"type": "json"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-28 15:23:58 | healthy | 402 | 321ms | |
| 2026-10-28 14:18:33 | healthy | 402 | 546ms | |
| 2026-10-28 06:58:12 | healthy | 402 | 216ms | |
| 2026-10-28 05:36:40 | healthy | 402 | 209ms | |
| 2026-10-28 04:38:32 | healthy | 402 | 287ms | |
| 2026-10-28 03:45:06 | healthy | 402 | 273ms | |
| 2026-10-28 02:44:34 | healthy | 402 | 286ms | |
| 2026-10-28 01:40:29 | healthy | 402 | 302ms | |
| 2026-10-28 00:34:37 | healthy | 402 | 200ms | |
| 2026-10-27 23:38:22 | healthy | 402 | 1305ms | |
| 2026-10-27 22:51:21 | healthy | 402 | 329ms | |
| 2026-10-27 21:41:20 | healthy | 402 | 335ms | |
| 2026-10-27 20:26:11 | healthy | 402 | 246ms | |
| 2026-10-27 19:20:47 | healthy | 402 | 334ms |