With a $120k annual salary (about $10,000/month before taxes) and typical debts, you can afford a home priced around $517,064 using standard lender guidelines — a 36% debt-to-income ratio, 20% down payment, and a 30-year fixed rate of 6.75%. That puts your total housing payment (principal, interest, property tax, and insurance) at about $3,300/month.

At $120k, you have meaningful purchasing power but 2026 rates temper what you can buy compared with 2021. The conservative 28% DTI approach caps your home at about $387,798, leaving substantial room for retirement saving and an emergency fund. The standard 36% DTI puts you at $517,064 — comfortable for most budgets, though you should stress-test whether that payment still works if rates adjust on a future refinance or if your income dips.

The single biggest lever on affordability isn't your income — it's the interest rate. At 5.5% you could afford roughly $577,376, while at 7.5% the same salary buys only $485,311. That's a $92,066 swing from rate alone. Comparing quotes from at least three lenders is the single highest-ROI hour in the entire home-buying process.

At $120k, a single income puts a household in roughly the top fifth of US earners, and the affordability question changes character: in most of the country this income buys comfortably above local medians, so the constraint stops being qualification and becomes opportunity cost. Every dollar of housing payment at this tier is a dollar not going into tax-advantaged accounts at a 24% marginal federal rate.

That tax point is worth making concrete. A $120k earner maxing a 401(k) ($23,000+ annual limits in recent years) reduces taxable income into the 22% bracket while building wealth — and lenders don't penalize 401(k) contributions in DTI math, since it's calculated on gross income. The buyer who contributes nothing and the buyer who maxes retirement qualify identically, but ten years on, their net worths diverge dramatically. The conservative-DTI column in the tables above is what makes the max-retirement path possible.

One profile note: $120k single earners cluster in mid-senior tech, engineering management, pharmacy, and specialized sales — careers where a meaningful slice of comp can be bonus or commission. Lenders count variable comp only with a two-year history, averaged. If you just jumped to $120k via a new job with a big variable component, your qualifying income may be closer to your base — worth knowing before you fall in love with a listing.