Claude Code skill pack for US freelancers and sole proprietors. Close the month in one run:

• Receipts → 2026 Schedule C lines: card/bank CSV, email receipts and receipt photos (Claude reads them, a script picks the Total line). IRS 2026 draft layout (line 16b Vehicle loan is new), meals at 50%, mileage at 72.5¢ to June 30 and 76¢ from July 1, 2026, simplified home office ($5 x up to 300 sq ft). Rows it is unsure about become questions; your answers are remembered per vendor.
• The next Form 1040-ES payment from your year-to-date ledger: the 2026 worksheet line by line (SE tax up to the $184,500 base, 2026 rate schedules, QBI deduction with the $400 minimum, safe harbor 90% / 100% / 110%) and what is left for January 15, 2027 after the payments you logged. Every result prints the IRS URL, revision and the date it was read.
• Overdue invoices → one reminder draft per client, friendly → firm → final notice, one step at a time with a log; late fees only from your own terms. Nothing is sent.
• Each close says what changed since last month and can check whether the IRS replaced any source file.

Python scripts, standard library only; your files stay on your computer. Free lite edition on GitHub. Worksheet calculator using published IRS figures - not tax advice.