
November 19, 2025 | By Elie Mansdorf
Renting an apartment, especially in today’s fast-moving housing market, can feel overwhelming. Whether you're hunting for a short-term stay or a long-term lease, knowing what you can truly afford is crucial. That’s where the rent-to-income ratio comes in.
If you’ve ever searched for an apartment and wondered, “Can I really afford this place?”, this guide is for you. In this post, we’ll break down the rent-to-income ratio, why it matters, how to calculate it, and how tools like a rent to income ratio calculator can help you stay on budget.
The rent-to-income ratio is a simple way to determine how much of your income should go toward rent each month. It’s often used by landlords to screen tenants, but it's also a helpful tool for renters trying to budget wisely.
In most cases, landlords expect renters to spend no more than 30% of their gross (pre-tax) monthly income on rent. For example, if you earn $4,000 per month, a 30% rent-to-income ratio means your rent should be no more than $1,200.
Understanding your rent-to-income ratio helps you:
Let’s walk through how to calculate this yourself (or you can jump down to use a rent to income ratio calculator).
(Monthly Rent ÷ Gross Monthly Income) x 100 = Rent-to-Income Ratio (%)
Example:
If your ratio is 30% or below, most landlords will consider your income sufficient for the rent.
Want to skip the math? Use a rent to income ratio calculator to figure out what rent fits your budget, or see if a specific apartment is financially realistic for you.
These tools are especially helpful if you're exploring:
Pro Tip: You’ll find many free versions of these calculators online. Just input your income and rent, and let the tool do the work.
You’ve probably heard the 30% rule mentioned everywhere. But is it a one-size-fits-all rule?
If you’re living in New York or another major metro area, 30% might be difficult—unless you're open to co-living arrangements where rent is more affordable and includes utilities, cleaning, and Wi-Fi.

If your rent-to-income ratio is above 30–35%, don’t panic. There are still smart ways to find a great place to live:
Platforms like Roomrs offer fully-furnished apartments and private rooms in shared spaces that are budget-friendly. These flexible options often cost less than traditional apartments—and they include utilities and amenities.
Sharing rent is one of the quickest ways to lower your ratio and boost affordability.
Consider side gigs, remote work, or asking for a raise before committing to a lease.
If you’re close to the threshold, cutting back on subscriptions or eating out could make the difference.
Even if your rent fits within the 30% rule, don’t forget to budget for these additional costs:
When living with Roomrs, many of these costs are bundled into one predictable monthly price, making budgeting far easier.
If you're only staying a few months, you might be willing to spend a little more short-term for convenience. Just ensure you’re not straining your budget overall.
Stick closely to the 30% guideline, especially if you’re locking into a 12-month contract.
With built-in amenities, shorter commitments, and all-inclusive pricing, co-living communities offer a smart way to live comfortably without blowing your budget.
Most landlords use gross income (before taxes) to determine rent affordability.
Yes, but you might need a co-signer or additional proof of financial responsibility.
Even in co-living spaces, aiming for a ratio under 35% is a safe bet, though flexible providers like Roomrs may accept a wider range of financial situations.
Understanding your rent-to-income ratio is one of the smartest ways to ensure you're living within your means without sacrificing comfort or convenience. Whether you're planning a short-term stay or setting down roots, using a rent to income ratio calculator can help you make informed decisions that match your lifestyle and financial goals.
At Roomrs, we’re here to help you find fully-furnished, flexible apartments and co-living spaces that fit your budget whether you're looking for a few weeks or a full year. With transparent pricing, community perks, and flexible lease terms, you can feel confident you're getting the most value for your rent. Ready to find a space that fits your lifestyle and your budget? Explore our listings today or check out more tips on our blog.