{"name":"FileKero Calculation API","version":"1.0","description":"Calculate Pakistan income tax for salaried, AOP, and freelancer income. Free and unlimited.","endpoints":{"calculate":{"url":"/api/tax","method":"GET","parameters":{"income":"Annual income in PKR (required, positive number)","year":"Tax year (required, one of: 2026-27, 2025-26, 2024-25, 2023-24)","type":"Calculator type (required, one of: salaried, aop, freelancer)","pseb":"PSEB registration status for freelancers (optional, boolean, default: true)"},"example":"/api/tax?income=1500000&year=2025-26&type=salaried"}},"sources":["FBR Finance Act 2025","FBR Finance Act 2024","FBR Finance Act 2023","PwC Tax Summaries Pakistan"],"attribution":"Free to use with attribution to https://filekero.pk","contact":"https://filekero.pk/contact"}