Real Estate NAICS Codes: What They Are and How to Find Yours

A NAICS code is a 6-digit number the federal government uses to classify your business by industry. For real estate businesses, the right code affects everything from loan eligibility to government contracts. This guide covers the most common real estate NAICS codes and walks you through how to find the one that fits your business.

NAICS stands for North American Industry Classification System (pronounced "nakes," like "snakes"). It's a shared standard used by the U.S., Canada, and Mexico to classify businesses by the type of work they do. Federal agencies use NAICS codes to collect economic data, track industry trends, and set policy — but the codes also show up in practical places for business owners.

You'll encounter your NAICS code when applying for an SBA loan, bidding on government contracts, registering on SAM.gov, or filing certain state business formation documents. Some states ask for a NAICS code during LLC formation. Most of the time it's optional, but having the right one on file makes those processes go faster.

Every NAICS code has 6 digits, and each digit narrows the classification further. The first 2 digits identify the broad economic sector. Each digit after that gets more specific, down to the individual industry at the 6-digit level. The 6-digit code is the one you'll actually use on applications and filings.

How the digits break down

• Digits 1–2: Economic sector (real estate falls under Sector 53 — Real Estate and Rental and Leasing)
• Digit 3: Subsector (531 is the Real Estate subsector within Sector 53)
• Digit 4: Industry group (e.g., 5311 covers lessors of real estate)
• Digit 5: NAICS industry (narrows to a specific type of real estate activity)
• Digit 6: National industry (the most specific classification level)

Most real estate businesses land somewhere in subsector 531. If your work spans multiple activities — say, you manage properties and also broker deals — you'll pick the code that best matches your primary revenue source.

Real estate covers a wide range of activities, and the NAICS system has a separate code for most of them. The codes below cover the most common real estate business types. If your work fits more than one, use the code that matches the activity generating most of your revenue.

Lessors of residential buildings and dwellings

NAICS 531110 covers businesses that own and lease residential properties — apartment buildings, single-family rentals, and similar dwellings. If you're a landlord collecting rent on residential units, this is your code.

Lessors of nonresidential buildings

NAICS 531120 applies to businesses that own and lease commercial or industrial properties — office buildings, retail spaces, warehouses, and similar nonresidential real estate.

Real estate agents and brokers

NAICS 531210 covers offices of real estate agents and brokers — businesses that facilitate the buying, selling, and renting of real estate on behalf of clients. This is the standard code for licensed agents and brokerage firms.

Property management

NAICS 531311 covers residential property managers, and NAICS 531312 covers nonresidential property managers. If you manage properties on behalf of owners — handling leasing, maintenance coordination, and tenant relations — one of these two codes applies depending on the property type.

Real estate appraisers

NAICS 531320 covers real estate appraisers — businesses that estimate the value of real property for sale, financing, tax, or insurance purposes.

Real estate holding companies, flipping, and development

NAICS 531390 — "Other Activities Related to Real Estate" — is the catch-all code for real estate activities that don't fit the more specific categories. It covers real estate holding companies, real estate flipping, real estate development, and similar activities. If you're forming an LLC to hold investment properties or flip houses, 531390 is the code most commonly used.

You're not legally required to have a NAICS code to run a real estate business, but the right code opens doors that the wrong one — or no code at all — can close. Most business owners don't think about this until they're mid-application for a loan or contract and realize the code they picked doesn't match their actual work.

Here's where your NAICS code shows up in practice:

• SBA loans and grants: lenders use your NAICS code to check size standards and determine eligibility for small business programs
• Government contracts: federal and state agencies filter contractors by NAICS code — the wrong code means you won't show up in the right searches
• Business registration: some states ask for a NAICS code during LLC formation, including Alaska, Arkansas, Connecticut, Georgia, Louisiana, Mississippi, New Hampshire, and New Mexico
• Business credit and banking: some lenders and financial institutions use NAICS codes to assess industry risk when reviewing applications
• Tax classification: certain industry-specific tax deductions and credits are tied to NAICS classifications

Finding your NAICS code takes 4 steps. The process is straightforward — the main task is describing your primary business activity accurately so the search tools return the right match.

Step 1: Describe your primary business activity

Write a plain-English description of what your business does and how it earns revenue. Be specific: "I own and rent residential apartments" is more useful than "real estate." If you do multiple things, focus on the activity that generates the most income — that's your primary NAICS code.

Step 2: Use an official NAICS search tool

Enter your description into one of these free tools. Each one lets you search by keyword and browse the results to find the closest match.

• NAICS Association keyword search at naics.com — enter a description and get a list of matching 6-digit codes with definitions
• Census Bureau NAICS search at census.gov/naics — the official government source, with downloadable code lists and the full 2022 NAICS manual
• SBA Size Standards Tool at sba.gov — useful if you're applying for SBA programs, since it ties NAICS codes to small business size thresholds

For real estate, start by browsing Sector 53 (Real Estate and Rental and Leasing) and subsector 531 (Real Estate). Most real estate businesses land in one of the 531xxx codes.

Step 3: Read the full code description before confirming

Don't stop at the code title. Read the full description and any included or excluded activities listed under that code. The NAICS manual often notes which activities belong in a different code — checking this prevents a mismatch that could affect loan eligibility or contract bids later.

Step 4: Add the code to your business profiles

Once you've confirmed your code, add it to your SAM.gov registration (required for federal contracting), your SBA profile, your state business registration if required, and any lender applications. You can use more than 1 NAICS code if your business covers multiple distinct activities — just designate one as your primary code.