API Pricing
API access included on every plan. Start free, upgrade when you need payroll, documents, or direct deposit.
Last updated: March 2026
When you're ready for full payroll
Save 17%
Starter
For 1 employee
$8/month
$100/year
Includes:
- 1 household employee
- Unlimited payroll runs
- Federal + state tax calculations
- Professional pay stubs
- W-2 & Schedule H generation
- 500 API requests/day
Direct Deposit$8/transfer
Most Popular
Plus
For up to 5 employees
$15/month
$180/year
Everything in Starter, plus:
- Up to 5 household employees
- Direct deposit ($6/transfer)
- Employee W-4 self-service
- Priority email support
- 2,000 API requests/day
Direct Deposit$6/transfer
Professional
For CPAs & developers
$25/month + $6/employer
$300 + $72/employer/year
Everything in Plus, plus:
- Up to 50 employer accounts
- Multi-employer API access
- Manage all clients in one place
- Build & resell products
- 2,000 API requests/day
Direct Deposit$6/transfer
Just need calculations?
The free tier gives you 50 API requests/day — tax calculations and threshold checks for all 50 states. No credit card, no time limit.
Free calculations assume zero year-to-date wages. Mid-year, this may overstate Social Security and FUTA taxes. For accurate ongoing calculations, upgrade to a paid plan with automatic YTD tracking.
Feature comparison
| Feature | Free | Starter | Plus | Professional |
|---|---|---|---|---|
| Tax calculations | ||||
| Threshold checks | ||||
| YTD tracking | — | |||
| Run payroll | — | |||
| Pay stub generation | — | |||
| W-2 generation | — | |||
| Schedule H | — | |||
| Direct deposit | — | $8/xfer | $6/xfer | $6/xfer |
| Employee portal | — | — | ||
| Multi-employer | — | — | — | Up to 50 |
| Resale permitted | — | — | — | |
| Daily rate limit | 50 | 500 | 2,000 | 2,000 |
| Employees | 1 | 1 | 5 | 5/employer |
Want to see how NannyKeeper compares to HomePay, Poppins, and others?
View our comparisonFAQ
Pricing questions
Yes — 50 API requests per day, forever. No credit card required. Calculate taxes for any state, check thresholds, and use the MCP server.
Each API call (POST /v1/calculate, GET /v1/threshold, etc.) counts as one request. Cached responses still count against your limit.
Yes. Upgrades take effect immediately (prorated). Downgrades take effect at the end of your billing period. No cancellation fees.
You pay a $30/month base fee plus $6/month for each employer account you manage. Managing 10 households costs $30 + (10 × $6) = $90/month. Annual billing saves about 17%.
Yes — Professional tier permits resale with "Powered by NannyKeeper" attribution. For white-label access (no attribution), contact hello@nannykeeper.com.
You'll get a 429 response with a Retry-After header. Limits reset at midnight UTC. If you consistently need more, upgrade to a higher tier.
Yes. Every plan — including Free — includes API access. The difference is what endpoints are available and the daily rate limit.
Yes — annual billing saves about 17% on Starter, Plus, and Professional base fees. Per-employer fees on Professional are also discounted annually.