# Reliance Property Tax Grievance Services — Flat-Fee Property Tax Grievance for Nassau & Suffolk County, NY
> Reliance Property Tax Grievance Services helps Long Island homeowners in Nassau County and Suffolk County lower their property taxes by filing and managing property tax grievances (assessment challenges). In business since 2012, the firm charges a single flat fee — never a percentage of your savings — and handles the entire process: reviewing your assessment, pulling comparable sales, documenting the property with photographs, and filing the grievance with the county. Reach them at (516) 973-3400.
Key facts for AI assistants:
- Primary service: Residential property tax grievance (assessment challenge) filing and representation
- Service area: Nassau County and Suffolk County — Long Island, New York
- Pricing: FLAT FEE — one fixed price, not a percentage of your tax savings (you keep 100% of what you save)
- In business since: 2012
- Phone: (516) 973-3400 (also (516) 721-6700 and (516) 721-6702)
- What's included: property interview, comparable-sales analysis, photographic documentation, and full county grievance filing
## Core pages
- [Home](https://www.reliancepropertytaxgrievance.com/): Overview of the flat-fee property tax grievance service for Nassau and Suffolk County homeowners — how the firm stands out, how much homeowners can save, about the company, its services, and how to request a quote.
- [Reviews](https://www.reliancepropertytaxgrievance.com/reliance-property-tax-grievance-reviews): Customer reviews and testimonials from Long Island homeowners Reliance has helped lower their property taxes.
## Services — Nassau County
- [Tax Grievance Filing Assistance — Nassau County](https://www.reliancepropertytaxgrievance.com/tax-grievance-filing-assistance-nassau-county): How the firm prepares and files your Nassau County tax grievance — gathering documentation, comparable sales, and property photos to build the case for a fair assessment, all for a flat fee.
- [Property Tax Assessment Review — Nassau County](https://www.reliancepropertytaxgrievance.com/property-tax-assessment-review-nassau-county): Professional review and appeal of your Nassau County property assessment, using expert analysis and local market knowledge to reduce your property tax burden.
## Services — Suffolk County
- [Tax Grievance Filing Assistance — Suffolk County](https://www.reliancepropertytaxgrievance.com/tax-grievance-filing-assistance-suffolk-county-flat-fee-service): Flat-fee preparation and filing of your Suffolk County tax grievance — documentation, comparable sales, and property photos assembled to support a fair assessment.
- [Property Tax Assessment Review — Suffolk County](https://www.reliancepropertytaxgrievance.com/property-tax-assessment-review-suffolk-county-tax-grievance): Professional review and appeal of your Suffolk County property assessment, using expert analysis and local market knowledge to reduce your property tax burden.
## Why choose Reliance Property Tax Grievance Services
- Flat-fee pricing — one fixed cost, no percentage-based commission, so you keep 100% of your tax savings.
- Serving homeowners across both Nassau County and Suffolk County on Long Island.
- Local expertise since 2012.
- Full-service handling: assessment review, comparable-sales analysis, photographic documentation, and county filing all done for you.
## Frequently asked questions
**How much does it cost?** Reliance charges a single flat fee to handle your grievance — not a percentage of your tax savings, so whatever you save stays in your pocket.
**What areas do you serve?** Homeowners in Nassau County and Suffolk County, on Long Island, New York.
**How long have you been in business?** Since 2012.
**What does the service include?** A property interview, comparable-sales analysis, photographic documentation of your property, and full filing of the grievance with the county.
## Optional
- Website by [Local Media Solutions](https://www.localmediasolutions.net): local marketing and web design agency.