Freelancer Operating System — time tracker, projects, taxes, contracts

Freelancer Operating System — time tracker, projects, taxes, contracts

A freelancer´s operating system in pure Python: a time tracker, a project board with deadlines and payments, finances with NPD and USN taxes, a contract/invoice/act generator and a one-screen morning briefing. No subscriptions and no database — three JSON files.
Start the timer — hours and money calculate themselves. Every morning one screen shows what is overdue, which payments are pending, how much to set aside for taxes, and your actual hourly rate for the week (earnings ÷ hours) — an honest mirror telling you it is time to raise your price.
📦 FORMAT · VERSION · WARRANTY
• Contents: ZIP — 5 modules, a run.py CLI, selftest.py (152 checks), seed_demo.py with demo data, GUIDE.pdf with screenshots, README, LICENSE
• Version: October 2026 · Python 3.9+ · standard library only
• Delivery: automatically to your e-mail right after payment
• Warranty: a reproducible bug is fixed within 24–72 hours (6 months of support)
5 MODULES (run with python run.py )
• time_tracker — hours: a start/stop timer and manual entries, a rate per project, overtime beyond the norm (8 h/day), summaries by day and week
• projects — projects: DISCUSSION → IN WORK → REVIEW → SENT → CLOSED, tasks, partial payments, deadlines flagged "hot" and "overdue"
• finance — money: income and expenses per project, NPD tax 4%/6% (8% above the 200,000 RUB/month cap), USN 6% and 15%, how much to set aside for taxes
• documents — a contract (50% advance, deadlines), an invoice for the remaining balance, an act for closed projects; requisites are validated (TIN, account, BIC)
• briefing — the morning briefing and weekly summary: hours, earnings, burning deadlines, money in hand
NUMBERS FROM THE DEMO (python seed_demo.py)
• The week: 35 hours, 87,550 RUB earned, an actual rate of 2,501 RUB/h
• 5 projects in progress worth 496,000 RUB, 269,000 RUB pending
• 1 project is overdue, 1 deadline in 2 days — visible immediately
• The month: 60,000 RUB income, 3,600 RUB NPD6 tax, 52,200 RUB in hand
VERIFICATION — 152 CHECKS
python selftest.py recalculates every formula (taxes, rates, overtime, payment balances) independently and compares it with the module output. The screenshots are real CLI output on the demo data, not mockups.
FOR WHOM
• A freelancer — hours, projects and money in one system with no monthly fees
• Anyone pricing by gut feeling — the actual rate shows the real cost of an hour
• A beginner — a contract, invoice and act from a template instead of documents from scratch
BEFORE REAL CALCULATIONS
The tax rates and caps are constants at the top of modules/finance.py — check them against your own regime. Documents are produced in Markdown and convert to PDF with any free tool.


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