White Plains & Westchester County Bookkeeping for Small Businesses
# White Plains & Westchester County Bookkeeping for Small Businesses
Westchester is where a lot of NYC owners actually live — and where they often run a second business. We serve owners across **White Plains, Yonkers, New Rochelle, Mount Vernon, Mamaroneck, Scarsdale, Rye, Harrison, Tarrytown, Ossining, and Peekskill**.
The Westchester tax picture is different from NYC in three big ways:
1. **No NYC Unincorporated Business Tax (UBT)**.
2. **No NYC Business Corporation Tax** — just NYS Article 9-A (CT-3) at 6.5%.
3. **Westchester sales tax is 8.375%**, not NYC''s 8.875%.
That''s up to **12.85% in combined city/state taxes you don''t pay** if you can legitimately sell a service from a Westchester address rather than a Manhattan one. We help owners think through that nexus question carefully.
## Who we work with in Westchester
### White Plains
- Law firms, financial advisors, medical practices, IT consulting, marketing agencies.
- We do monthly close, payroll for 5–25 employees, and quarterly NYS estimates (IT-2105 for owners, CT-400 for corps).
### Yonkers
- Restaurants, contractors, auto shops, retail.
- Yonkers has its own **city income tax surcharge** for residents (1.675% of NYS tax) and **earnings tax** for nonresidents working there. We file **Y-203** and **IT-360.1** when needed.
### New Rochelle, Mount Vernon
- Small healthcare, daycare, salons, retail.
### Scarsdale, Rye, Mamaroneck, Harrison
- Solo professionals — attorneys, doctors, financial advisors, consultants — often S-corps.
- Family LLCs holding investment real estate (Schedule E, depreciation).
### Tarrytown, Ossining, Peekskill
- Restaurants, retail, contractors, breweries.
## What we deliver
- Monthly QuickBooks Online reconciliation.
- **NYS sales tax (ST-100/101)** at 8.375% Westchester rate.
- **NYS-45** quarterly payroll, federal 941, workers'' comp, PFL, disability.
- **CT-3 / CT-3-S** corporate filings; **IT-204** partnerships; **Schedule C** sole props.
- **Yonkers Y-203** when applicable.
- Year-end 1099-NEC and W-2.
- Quarterly tax planning.
## Pricing
Solo professional: **$245/month**. Practice or small business with payroll: **$595–$1,800/month** depending on complexity.
[Get a Westchester bookkeeping consultation →](/contact)