Free
Simple W-2 federal returns
Free
- Single + MFJ filing statuses
- W-2 income only
- Standard deduction
- Print-ready 1040 mail packet
- Local-only — no cloud, no telemetry
- Federal only — no states included
AIR-GAPPED TAX SOFTWARE
Your taxes.
Your computer.
Nobody else involved.
AirGapTax prepares your federal return entirely on your device. No cloud. No telemetry. No subscription. Buy the 2026 edition once; file your 2026 returns whenever — late, amended, on time.
Buy once per tax year. No subscription. No auto-renewal.
Filing statusSingle
Wages (W-2)$82,400
Interest income$1,230
Standard deduction($15,000)
Taxable income$68,630
Federal tax$10,852
Refund$1,548
Everything you need. Nothing you don't.
Drop in your documents
W-2, 1099s, crypto CSVs. Drag, drop, done. OCR extracts the numbers.
Live 1040 math
Edit any line. Watch AGI, tax, and refund update instantly. Schedule A toggle built in.
Print, sign, mail
Generate a draft filing packet with IRS mailing addresses. Or export for review and e-file handoff.
PUBLIC AUDIT — iter5 PERFECT
Independently verifiable. Cross-audited by GPT.
The AirGapTax tax engine has been audited against 100 synthetic personas, all 9 IRS Pub 1436 scenarios, and independently cross-audited by GPT (Codex GPT-5) — a different AI model with no coordination with our team. All artifacts are SHA-256 hashed and publicly downloadable.
Read our SHA-256 audit →Privacy by design.
Zero telemetry. All tax computation runs locally. The built-in AI assistant works offline with no network calls. If you choose to enable optional external AI backends (Groq, Ollama, or a custom endpoint), that traffic goes only where you point it — and you can disable it at any time. Your tax data never touches our servers.
Read Our Privacy PolicyBuy once per tax year.
No subscription. No auto-renewal. The 2026 edition is yours to keep — file 2026 returns whenever.
Complete
Full federal + crypto + 1099s
$129 $99 one-time
- All 4 filing statuses
- W-2, all 1099s, SSA-1099, 1099-G
- Schedule A itemized deductions
- Schedules B, D + Form 8949
- Crypto: Coinbase / Kraken / Binance / Gemini CSV
- Wash-sale detection
- CTC + EITC credits
- 1 state included (when available)
- IRS-ready mail packet (print + sign + mail)
- Draft XML export for authorized e-file providers
Pro
Self-employed + Schedule C/E/F + year-round planning
$229 $179 one-time
- Everything in Complete
- Schedule C (self-employed / 1099-NEC)
- Schedule E (rental + royalty income)
- Schedule F (farm income)
- Self-employment tax + quarterly estimates
- Year-round tax planning tools
- 3 states included (when available)
- Priority email support
Elite
Investor / multi-business / family office
$399 $299 one-time
- Everything in Pro
- RSU / ISO / ESPP / AMT planning
- K-1 workflows (partnership + S-corp passthrough)
- Multi-business Schedule C (multiple side businesses)
- Multi-taxpayer file (spouse + dependents in one place)
- Multi-year what-if scenario modeling
- Audit-response packet generator
- 5 states included (when available)
- $149 human CPA review credit included
Existing owners get 50% off next year's edition. Terms of Service
AirGapTax is tax computation software, not tax advice. All outputs are drafts. All sales final.
Built so we can't see your taxes.
Air-gapped by design. On your machine. Always.
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