Enough paid?
Find out in 10 seconds.
Enter one number from last year's tax return. Get your quarterly estimated tax payment — the exact amount that keeps you safe from IRS underpayment penalties.
Open the calculator →No bank connections. Ever.
No login. No account. No server storage. Your data stays on your device.
How it works
- 1Enter one number
Your total tax from last year's Form 1040, line 24.
- 2Get your quarterly amount
Calculated using the IRS safe harbor rule — ×1.10 if your AGI was over $150,000.
- 3See if you're on track
Enter what you've paid so far — get a clear YES or NOT YET.
Safe harbor reference
Pay at least this much per quarter to avoid penalties — regardless of what you end up owing.
| Prior-Year Tax | Quarterly (100%) | Quarterly (110%) |
|---|---|---|
| $5,000 | $1,250 | $1,375 |
| $10,000 | $2,500 | $2,750 |
| $15,000 | $3,750 | $4,125 |
| $20,000 | $5,000 | $5,500 |
| $30,000 | $7,500 | $8,250 |
| $40,000 | $10,000 | $11,000 |
| $50,000 | $12,500 | $13,750 |
100% = prior-year AGI ≤ $150K.110% = prior-year AGI > $150K.Calculate your exact amount →
What EnoughPaid does
- Safe harbor calculation — from one number, not a spreadsheet
- On-track status — YES / NOT YET at a glance
- Payment schedule — all four deadlines with countdown
- Shareable results — copy or bookmark your calculation