Automated quarterly tax estimates tailored for freelancers – pay exactly what you owe.
Freelancers face overwhelming complexity in managing taxes, particularly calculating quarterly estimates and tracking deductible expenses without proper tools.
Users input income and expenses; the app calculates precise IRS quarterly estimates using current tax brackets. It tracks payments and sends reminders to avoid penalties. Simple dashboard shows year-to-date projections and adjustments in real-time.
Independent freelancers and solopreneurs earning $50K-$200K annually who handle their own US taxes as self-employed contractors
Hyper-focused solely on quarterly estimates with one-click IRS form generation, unlike bloated accounting tools.
professional
Manual entry or CSV upload for income and deductible expenses.
Computes federal + state estimates based on 1040-ES rules, self-employment tax.
Logs payments with due date reminders via email.
Dashboard showing projected tax liability and over/under payments.
Generates printable 1040-ES payment vouchers.
Auto-suggests deduction categories like home office, mileage.
One-time import from prior year taxes.
Handles state-specific estimates.
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| text | No | |
| annual_income_goal | int | Yes |
| created_at | timestamp | No |
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| user_id | uuid | No |
| amount | int | No |
| category | text | Yes |
| date | timestamp | No |
Relationships:
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| user_id | uuid | No |
| quarter | text | No |
| estimated_amount | int | No |
| paid_amount | int | Yes |
| calculated_at | timestamp | No |
Relationships:
/api/expensesAdd new expense
/api/estimates/calculateCompute quarterly estimate
/api/users/profileGet user dashboard data
/api/estimatesList user's estimates
5 expenses/month
| Month | Users | Conversion | MRR | ARR |
|---|---|---|---|---|
| Month 1 | 100 | 2% | $40 | $480 |
| Month 6 | 800 | 4% | $640 | $7,680 |
QuartlyTax calculates exact IRS estimates from your income & expenses – save time and avoid penalties.
Post in r/freelance and r/tax with a free beta invite link; DM 10 Upwork freelancers offering free lifetime Pro access for feedback; share on Indie Hackers with tax season hook.
Bank sync
Overkill for just estimates
Simpler, cheaper focus on quarterly calcs only
Full accounting
Complex UI
Tax-specific, no bloat
Proprietary estimate algorithm tuned to freelancer patterns + data lock-in from historical expenses.
Rising freelance economy post-COVID + IRS penalty increases make accurate estimates critical.
Tax advice liability
Clear disclaimers + 'not tax advice' everywhere
Calc inaccuracies
Unit tests + CPA validation
Low awareness
Targeted Reddit/SEO
Success: 70% confirm pain + would pay $20
Success: 80% retention week 2
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