Tax Prep

Organize tax-related data for a solo founder: categorize deductions, track quarterly estimated payments, summarize receipts by category, and flag missing documentation. Focused on US Schedule C / self-employment tax.

When to Use

• Quarterly estimated tax payments are due (Apr 15, Jun 15, Sep 15, Jan 15)
• You need to organize deductions before filing
• You want to estimate your tax liability for the current quarter
• You need to verify receipt coverage for claimed deductions

Execution

1. Parse $ARGUMENTS for action (organize/estimate/deductions) and quarter
2. If organize: pull from expense log, categorize by IRS Schedule C line items
3. If estimate: compute estimated tax from YTD revenue and deductions
   • Self-employment tax: 15.3% on 92.35% of net earnings
   • Income tax: apply marginal brackets to net earnings
   • Subtract already-paid quarterly estimates
4. If deductions: list all deductible expenses with receipt status
5. Flag common solo founder deductions: home office, software/SaaS, equipment, travel, health insurance, retirement contributions
6. Identify missing receipts or uncategorized expenses
7. Present summary with actionable items

Output Format

Tax Prep | <action> (<quarter>)

## Revenue & Deductions Summary
| Category | Amount | Receipts | Status |
|----------|--------|----------|--------|
| Gross Revenue | $<N> | N/A | - |
| Software/SaaS | -$<N> | <N>/<N> | OK/MISSING |
| Home Office | -$<N> | <N>/<N> | OK/MISSING |
| Equipment | -$<N> | <N>/<N> | OK/MISSING |
| Travel | -$<N> | <N>/<N> | OK/MISSING |
| Health Insurance | -$<N> | <N>/<N> | OK/MISSING |
| **Net Earnings** | **$<N>** | | |

## Estimated Tax (if estimate)
| Tax | Amount |
|-----|--------|
| Self-employment (15.3%) | $<N> |
| Federal income tax | $<N> |
| State income tax | $<N> |
| **Total estimated** | **$<N>** |
| Already paid (Q1-Q<N>) | -$<N> |
| **Remaining due** | **$<N>** |

## Action Items
- [ ] <missing receipt or uncategorized expense>
- [ ] <upcoming deadline>

Next action: <recommendation>

Skill Chains

Mandatory

• None — tax-prep is advisory mode (read-only analysis and estimation).

Advisory

After this skill...	Consider...
Need expense detail	[expense-log] to review and categorize
Need invoice history	[invoice-generate] for revenue records
Need runway context	[runway] for cash flow impact

Authority

• T1 (TRUSTED): May run without restriction
• T2 (Active/High): May run without restriction (read-only analysis)
• T3 (Medium): May run without restriction (read-only analysis)
• T4 (Probationary): May run (read-only — no side effects)
• Operator: Override any restriction

Disclaimer

Tax-prep provides estimates for planning only. It is NOT a substitute for professional tax advice. Always consult a CPA before filing.