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RentAffordability

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Rent Affordability Glossary

100+ Essential Terms Every Renter Should Know

From financial calculations to lease agreements, master the language of renting with our comprehensive glossary.

Last Updated: January 29, 2026

Navigate the world of renting with confidence. This glossary provides clear, concise definitions of essential rental terms, from financial concepts like the 30% Rule to legal terminology like subletting. Use the search bar or browse by category to find exactly what you need.

Important Note: Rental regulations vary significantly by state and locality. Laws regarding security deposits, rent control, evictions, and tenant rights change frequently. This glossary reflects general practices and federal standards as of January 2026. Always verify current requirements for your specific location, as states like California, Colorado, and New York have enacted significant tenant protection laws in 2024-2026.

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A

Affordability Ratio

Financial

The proportion of your income that goes toward housing costs. A common affordability ratio is 30% of gross income for rent.

Example: If you earn $4,000/month, an affordability ratio of 30% means you can afford up to $1,200/month in rent.

Affordable Housing

Housing Type

Housing designated for individuals or families with low to moderate income, typically subsidized by government programs.

Example: An affordable housing unit might charge $800/month in an area where market rate is $1,500/month.

Amenities

Renter Terms

Additional features or services provided by a rental property, such as a gym, pool, parking, or laundry facilities.

Example: An apartment complex offers amenities including a fitness center, rooftop terrace, and pet washing station.

Annual Percentage Rate (APR)

Financial

The yearly interest rate charged on borrowed money. While less common in traditional renting, APR is relevant when considering rent-to-own agreements.

Related: Credit Score

Apartment

Housing Type

A self-contained housing unit that occupies part of a building with multiple units.

Application Fee

Renter Terms

A non-refundable fee charged to process a rental application, typically covering background and credit checks.

Example: An apartment complex charges a $50 application fee per adult applicant.

B

Background Check

Renter Terms

A review of an applicant's criminal history and eviction records conducted during tenant screening.

Bank Statements

Financial

Official records from your bank showing account balances and transactions, requested as proof of financial stability.

Base Rent

Renter Terms

The fundamental rental amount before additional charges like utilities or parking fees.

Example: Base rent is $1,200, but with parking ($100) and pet rent ($50), total is $1,350.

Below Market Rate (BMR)

Financial

Housing units rented at prices below the prevailing market rate, often through affordable housing programs.

C

Condominium (Condo)

Housing Type

A housing unit within a building where individuals own their specific unit but share ownership of common areas.

Related: Co-op Apartment

Co-Signer / Guarantor

Lease & Legal

A person who agrees to be legally responsible for rent payments if the primary tenant fails to pay.

Example: A recent college graduate might need a parent to co-sign their first apartment lease.

Cost-Burdened

Financial

A household that spends more than 30% of its gross income on housing costs.

Credit Score

Financial

A numerical representation of creditworthiness, typically ranging from 300 to 850.

Example: A credit score of 700+ is generally considered good for rental applications.

D

Debt-to-Income Ratio (DTI)

Calculations

The percentage of gross monthly income that goes toward debt payments, including rent and loans.

Example: If you earn $5,000/month and have $1,500 in debt payments, your DTI is 30%.

Default

Lease & Legal

Failure to meet lease terms, most commonly by not paying rent on time.

Related: Eviction Late Fee

Duplex

Housing Type

A building divided into two separate living units, either side-by-side or stacked vertically.

E

Early Termination Fee

Lease & Legal

A penalty charged when a tenant breaks a lease before the agreed end date.

Example: An early termination fee might equal two months' rent.

Emotional Support Animal (ESA)

Renter Terms

An animal providing therapeutic benefit to someone with a mental or emotional disability.

Eviction

Lease & Legal

The legal process by which a landlord removes a tenant from a rental property.

F

Fair Housing Act

Lease & Legal

Federal legislation prohibiting discrimination in housing based on race, color, national origin, religion, sex, familial status, or disability.

Fair Market Rent (FMR)

Financial

The estimated amount that a property would rent for in the current market, as determined by HUD.

First Month's Rent

Renter Terms

The initial month's rent payment required before or upon moving in.

Fixed-Term Lease

Lease & Legal

A rental agreement for a specific period with set start and end dates.

Example: A 12-month lease from January 1 to December 31 at $1,200/month.

G

Grace Period

Lease & Legal

A short period after the rent due date during which payment can be made without late fees.

Example: Rent is due on the 1st, but with a 5-day grace period, late fees don't apply until the 6th.

Gross Income

Financial

Your total income before taxes and deductions.

Example: If you earn $60,000 annually, your gross monthly income is $5,000.

H

Habitability

Renter Terms

The legal standard that rental properties must be safe, sanitary, and fit for human occupancy.

Household Income

Financial

The combined income of all people living in a residence.

HUD

Renter Terms

The U.S. federal agency that oversees national housing policy and administers housing assistance programs.

I

Income-Restricted Housing

Housing Type

Rental units with eligibility requirements based on household income levels.

Income Requirement

Landlord Terms

A minimum income threshold that applicants must meet to qualify for a rental.

Example: For a $1,500/month apartment with a 3x requirement, you need to earn at least $4,500/month.

In-Unit Laundry

Renter Terms

A washer and dryer located inside the individual apartment unit.

Related: Amenities

J

Joint and Several Liability

Lease & Legal

A lease provision where each tenant is individually responsible for the full rent amount.

Example: Three roommates sign a lease. If one moves out, the remaining two are responsible for the full rent.

L

Landlord

Landlord Terms

The property owner who rents out residential or commercial space to tenants.

Last Month's Rent

Renter Terms

A prepayment of the final month's rent collected at move-in.

Late Fee

Lease & Legal

A charge imposed when rent is paid after the due date and grace period.

Example: A $50 late fee or 5% of monthly rent, whichever is greater.

Lease Agreement

Lease & Legal

A legally binding contract between landlord and tenant outlining the terms of the rental.

LIHTC

Financial

A federal program providing tax incentives to developers who create affordable housing for low-income households.

M

Market Rate Rent

Financial

The rental price determined by current supply and demand in the local market without subsidies.

Median Rent

Financial

The middle value in a range of rental prices for a specific area or property type.

Month-to-Month Lease

Lease & Legal

A rental agreement that automatically renews each month without a fixed end date.

Move-In Costs

Renter Terms

All upfront expenses required to secure a rental, including first month's rent and security deposit.

Example: For a $1,200/month apartment, move-in costs might be $3,600.

Multi-Family Home

Housing Type

A residential building designed to house multiple separate households.

N

Net Income

Financial

Your income after taxes and deductions. Also known as take-home pay.

Normal Wear and Tear

Renter Terms

Deterioration that occurs naturally over time through ordinary use.

Notice to Vacate

Lease & Legal

Written notification from either tenant or landlord indicating intent to end the tenancy.

O

Occupancy Limits

Landlord Terms

The maximum number of people allowed to live in a rental unit based on square footage and local codes.

Related: Lease Agreement

P

Pet Deposit

Renter Terms

A refundable or non-refundable fee charged to tenants with pets to cover potential damage.

Pet Rent

Renter Terms

An additional monthly fee charged to tenants with pets, added to the regular rent payment.

Example: $1,200 base rent + $50 pet rent = $1,300 total monthly rent.

Prorated Rent

Renter Terms

Rent calculated for a partial month when moving in or out mid-month.

Example: Moving in on the 15th of a 30-day month with $1,200 rent = $600 prorated rent.

Property Manager

Landlord Terms

A professional who manages rental properties on behalf of the owner.

R

Reasonable Accommodation

Lease & Legal

Modifications or exceptions that landlords must provide to tenants with disabilities under fair housing laws.

Rent Burden

Financial

The percentage of household income spent on rent. Above 30% is considered cost-burdened.

Rent Control

Lease & Legal

Government regulations that limit how much landlords can charge for rent and restrict rent increases.

Renters Insurance

Financial

Insurance coverage protecting tenants' personal belongings and providing liability protection.

S

Section 8

Renter Terms

A federal housing assistance program helping low-income families afford housing by subsidizing rent.

Security Deposit

Lease & Legal

A refundable amount paid at move-in to protect landlords against damages or unpaid rent. As of 2025, deposit limits vary by state—California caps deposits at one month's rent (AB 12, effective July 2024), while other states may allow 1-2 months' rent. Deposits are typically returned within 14-60 days after move-out, minus legitimate deductions for damages beyond normal wear and tear.

Example: In California, a $1,800/month apartment requires maximum $1,800 security deposit. In Texas, landlords may request up to 2 months' rent ($3,600).

Service Animal

Renter Terms

An animal specifically trained to perform tasks for a person with a disability.

Severely Cost-Burdened

Financial

Spending more than 50% of gross income on housing costs.

Studio Apartment

Housing Type

A small apartment with a single main room combining living, sleeping, and cooking areas, plus a separate bathroom.

Sublease / Sublet

Lease & Legal

An arrangement where the original tenant rents out the property to another person while remaining responsible for the lease.

T

Tenant / Renter

Renter Terms

A person who rents and occupies property owned by another person.

30% Rule

Calculations

A guideline suggesting that rent should not exceed 30% of gross monthly income.

Example: With a monthly income of $4,000, aim for rent no higher than $1,200.

3x Rent Rule

Calculations

A requirement that applicants earn at least three times the monthly rent in gross income.

Example: For a $1,500/month apartment, you'd need to earn at least $4,500/month.

Townhouse

Housing Type

A multi-story home attached to similar homes in a row, sharing side walls.

U

Utilities

Renter Terms

Essential services including electricity, gas, water, sewer, and trash collection.

Utilities Included

Renter Terms

A rental arrangement where the landlord pays for some or all utilities as part of the rent.

W

Walk-Through

Renter Terms

A physical inspection of the rental property conducted at move-in and move-out to document condition.

Walk-Up

Housing Type

An apartment building without an elevator, requiring residents to use stairs.

Related: High-Rise Apartment

Browse by Category

attach_money

Financial Terms

Income, affordability ratios, credit scores, and financial calculations

description

Lease & Legal

Lease agreements, tenant rights, legal protections, and regulations

home

Housing Types

Apartments, condos, townhouses, and other residential property types

business

Landlord Terms

Requirements, policies, and landlord-specific terminology

person

Renter Terms

Application process, move-in costs, utilities, and tenant responsibilities

calculate

Calculations & Ratios

30% rule, 3x rent rule, DTI ratios, and affordability formulas

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