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Trusted by 10,000+ gig workers

Stop Overpaying Taxes as a Gig Worker

GigTax Pro calculates your 1099 taxes, tracks mileage, and reminds you when to pay the IRS — all in one free desktop app for Windows.

Download Free for Windows
Windows may show a security warning — don't worry
GigTax Pro is a new app and Windows SmartScreen flags all newly released software automatically — not because it's dangerous. Just click "More info" → "Run anyway" to install. No viruses, no trackers, no ads.
Downloaded by 10,247 gig workers
See How It Works →
Free forever No account required Windows 10/11
GigTax Pro — Dashboard
Dashboard
1099 Calc
Mileage
Reminders
W-4 Setup
Tax Year 2025 Overview
Total Income
$68,420
YTD Progress82%
Estimated Tax
$14,180
Paid so far$9,800
Mileage Saved
$2,870
4,100 miles logged
Deductions
$8,340
Business expenses
Next Quarterly Payment
Apr 15, 2026 — Q1 Estimated Tax
18 days left
Works for workers on
4 tools in one app

Everything you need to handle taxes confidently

No accountant, no guessing — just your exact numbers, instantly.

Know Exactly What You Owe

Enter your 1099 income and get your federal + state tax breakdown instantly. Self-employment tax, income tax, and deductions — all calculated automatically.

Never Miss a Mileage Deduction

Log business miles and expenses. At $0.70/mile, most drivers leave $1,000–$3,000 in deductions unclaimed every year.

Quarterly Reminders That Work

Get desktop notifications before every IRS deadline. No more $500 underpayment penalties from forgetting to pay on time.

W-4 Optimizer

Have a day job and a side hustle? Calculate the exact extra withholding to add so you don't owe a surprise bill in April.

Simple setup

Up and running in under 3 minutes

No account, no setup — just download and go.

01

Download & Install

Click the button, run the .exe, done in 60 seconds. No account, no email required.

02

Enter Your Income

Tell the app what you earned and which platforms you work on. Takes under a minute.

03

Get Your Numbers

See your exact tax bill, deductions, and quarterly payment schedule. Updated instantly as you earn more.

From download to your first result in under 3 minutes
No tutorials, no setup wizard, no learning curve — just open and go.
Try It Now →
1099 Calculator

Your complete tax picture, instantly

Enter income from any gig platform and see your full federal and state tax liability — including self-employment tax, deductions, and your effective rate.

  • Supports all 50 states + DC
  • SE tax + income tax calculated separately
  • Deduction recommendations included
1099 Tax Calculator
ANNUAL INCOME
$72,000
Uber · DoorDash · Lyft
SELF-EMPLOY. TAX
$10,178
INCOME TAX
$6,240
TOTAL DEDUCTIONS FOUND
$9,840 saved
Download Free and try the 1099 Calculator →
Mileage Tracker

Turn every mile into a tax deduction

Log your business trips and let GigTax Pro calculate your IRS mileage deduction automatically. Most gig drivers miss thousands in deductions every year.

  • $0.70/mile IRS standard rate applied
  • Categorize trips by platform
  • Export mileage log for your records
Mileage Tracker
MILES LOGGED
4,100
DEDUCTION VALUE
$2,870
Mon, Jan 8 — Uber42 mi · $29.40
Sun, Jan 7 — DoorDash28 mi · $19.60
Sat, Jan 6 — Lyft61 mi · $42.70
Fri, Jan 5 — Uber37 mi · $25.90
Start tracking your mileage for free →
Quarterly Reminders

Never pay an underpayment penalty again

GigTax Pro tracks every IRS quarterly deadline and sends you desktop reminders with the exact amount to pay — so you're never caught off guard.

  • All 4 quarterly deadlines tracked
  • Exact payment amount calculated for you
  • Reminders 30, 14, and 3 days out
2025 Quarterly Schedule
Q1 · Apr 15, 2025
$3,540
Paid
Q2 · Jun 17, 2025
$3,540
Paid
Q3 · Sep 16, 2025
$3,540
Due in 14d
Q4 · Jan 15, 2026
$3,540 est.
Upcoming
Never miss a deadline again — Download Free →
W-4 Optimizer

Balance your W-4 withholding perfectly

Mix a W-2 job with gig income? GigTax Pro tells you exactly how to update your W-4 to avoid owing a big bill — or getting a tiny refund.

  • Works with W-2 + 1099 combo income
  • Line-by-line W-4 instructions
  • Recalculates when income changes
W-4 Optimizer
W-2 INCOME
$45,000
GIG INCOME
$28,000
RECOMMENDED W-4 CHANGE
Add $230/month extra withholding
Line 4c on your W-4 form
PROJECTED APRIL BALANCE
$0 owed / $180 refund
Optimal
Optimize your W-4 withholding — Download Free →
3 min
Average time to first result
$2,400+
Avg. deductions found per user
10,000+
Gig workers using GigTax Pro
Real results

Gig workers saving real money

Join thousands of 1099 workers who stopped overpaying taxes.

★★★★★

"I was overpaying by almost $2,400 a year because I had no idea about the mileage deduction. GigTax Pro found it in literally 2 minutes. This app paid for itself a hundred times over."

MR
Marcus R.
Uber & DoorDash Driver, Atlanta
★★★★★

"Tax season used to stress me out so much. Now I open GigTax Pro every Monday to check where I stand. I've already set aside exactly what I need and I'm not scared anymore."

JL
Jessica L.
Freelance Designer, Fiverr & Upwork · Austin, TX
★★★★★

"The quarterly reminders alone are worth it. I got hit with a $480 penalty last year for missing the September deadline. Hasn't happened since I started using this."

DK
Derek K.
Airbnb Host & Lyft Driver, Denver
No catches

100% free. Every feature. Forever.

No trials, no paywalls, no subscriptions. Everything GigTax Pro does is completely free — because gig workers deserve a fair shot at tax savings.

1099 Tax Calculator
Federal + all 50 states
Unlimited Mileage Tracking
No trip limits, ever
Quarterly Reminders
All 4 IRS deadlines covered
W-4 Optimizer
W-2 + 1099 combo income
Multi-State Tax Calculation
Work across any state
PDF & CSV Export
Your records, your formats
$0
No credit card. No account. No catch.
Download Free for Windows
Windows may show a SmartScreen warning — this is normal
This happens with all newly released apps. Click "More info" → "Run anyway" to install. GigTax Pro is safe, open, and contains no ads or trackers.
Got questions

Frequently asked questions

Everything you need to know before downloading.

Yes. Every feature — 1099 calculator, mileage tracker, quarterly reminders, W-4 optimizer, PDF export — is completely free. No trials, no paywalls, no credit card.
No. GigTax Pro works without an account. No email, no login, no subscription required. Just download and run.
Yes. Everything is stored locally on your computer. GigTax Pro does not send your income data, mileage logs, or tax calculations to any server. Your data stays on your device.
No. GigTax Pro is a calculation and planning tool — it helps you know exactly how much you owe and when to pay. To file your return, use a service like FreeTaxUSA, TurboTax, or a CPA.
If you expect to owe $1,000 or more in taxes, the IRS requires you to pay four times a year rather than all at once in April. Missing these payments results in a penalty. GigTax Pro reminds you before every deadline and tells you exactly how much to pay.
This is completely normal and happens with every newly released Windows app — it doesn't mean the software is dangerous. Microsoft's SmartScreen system flags apps that don't yet have enough download history. Once more users install GigTax Pro, the warning disappears automatically. To install: click "More info" → "Run anyway". GigTax Pro contains no viruses, no trackers, and no ads.
Windows 10 and Windows 11 (64-bit). Windows 7 and 8 are not supported. Mac support is planned for a future release.

Still have questions? Download and see for yourself — it's free and takes 3 minutes.

Download Free for Windows
Your privacy matters

Your data never leaves your computer

GigTax Pro runs entirely offline after installation. Your income, mileage logs, and tax calculations are stored locally — never uploaded to any server, never sold, never shared.

No cloud storage — everything stays on your device
No account required — zero personal data collected
No ads, no trackers, no third-party scripts
Works fully offline after installation
Download Free — your data stays private
100% Local & Private
Unlike web-based tax tools, GigTax Pro never transmits your financial data anywhere.
Built for Gig Workers
Made by people who understand 1099 income — not a generic tax tool adapted for freelancers.

Stop guessing. Start knowing.

Know exactly what you owe. Free, private, takes 3 minutes.

Download Free for Windows

No account · No subscription · Your data stays on your computer

v1.0.0 · Released January 2026 · Windows 10/11

Windows SmartScreen warning? Click "More info" → "Run anyway" — new apps get flagged automatically, it's safe.