The main levers that control your rate

Your mortgage rate depends on four things you can actually influence: your credit score, the size of your down payment, the length of your loan, and the lender you choose. A lender will also price your rate based on current market conditions—which you cannot control—and the type of property and loan (a 30-year fixed rate on a single-family home costs less than an adjustable rate or a jumbo loan). The difference between a 6% rate and a 7% rate on a $300,000 loan costs you roughly $150 more per month, so even small moves on the factors you control add up.

Start by understanding where you stand on credit score and down payment size, because those two determine your starting point. Then shop rates across multiple lenders—not just your bank—because the same borrower gets different quotes from different places. Finally, decide whether paying points (an upfront fee to lower your rate) makes sense for your situation.

Key Takeaways

  • A credit score of 740 or higher typically unlocks the best rates; scores below 680 pay noticeably more, so checking your report and disputing errors before you apply can save thousands.
  • A down payment of 20% or more removes private mortgage insurance (PMI) and lowers your rate; smaller down payments trigger PMI and a higher rate to offset the lender's risk.
  • A 15-year mortgage carries a lower rate than a 30-year one, but your monthly payment will be roughly 50% higher, so the choice depends on your cash flow, not just the rate.
  • Rates vary significantly between lenders—sometimes by 0.5% or more for the same borrower—so getting quotes from at least three sources (a bank, a credit union, and a mortgage broker) is standard practice.
  • Paying points (1 point = 1% of the loan amount) lowers your rate by roughly 0.25%, but only makes sense if you plan to stay in the home long enough to recoup the upfront cost.

How your credit score affects your rate

Lenders use your credit score to measure the risk that you will not pay them back. A score of 740 or higher typically gets the best published rates. Between 700 and 739, you pay slightly more. Below 680, the increase becomes steep—sometimes 0.5% to 1% higher than the best rate. A single point of difference in your score can shift your rate by 0.125% or more, depending on the lender.

Before you shop for a mortgage, pull your credit report from all three bureaus (Equifax, Experian, and TransUnion) at annualcreditreport.com, which is the only free source authorized by federal law. Look for errors—accounts that are not yours, late payments that were actually on time, or accounts marked as open that you closed. Dispute any errors directly with the bureau; they have 30 days to investigate. Paying down existing debt also helps: if you have credit card balances, paying them down to below 30% of your limit can raise your score by 20 to 50 points in a few months.

Do not open new credit cards or take out new loans in the months before you apply for a mortgage. Each application triggers a hard inquiry, which temporarily lowers your score. Multiple inquiries in a short window (within 14 to 45 days, depending on the scoring model) count as one inquiry, so if you are shopping for rates, do it all within two weeks.

Why your down payment size changes your rate and monthly cost

A down payment of 20% or more removes the requirement for private mortgage insurance (PMI), which is an insurance policy that protects the lender if you default. PMI typically costs 0.5% to 1.5% of your loan amount per year, added to your monthly payment. It also signals to the lender that you have less skin in the game, so they charge a higher interest rate on top of the PMI cost.

If you put down less than 20%, you pay both PMI and a higher rate. A 10% down payment might cost you 0.5% more in rate plus PMI; a 5% down payment might cost 0.75% more in rate plus PMI. The math is worth running: on a $300,000 home, putting down 10% instead of 5% costs you $15,000 more upfront, but it saves you roughly $100 to $150 per month in PMI and rate difference—which breaks even in about 100 to 150 months (8 to 12 years).

If you do not have 20% saved, putting down as much as you can afford still helps. Even moving from 5% to 10% or 10% to 15% lowers your rate and PMI cost. However, do not drain your emergency fund to reach 20%; keeping three to six months of expenses in savings is more important than hitting that threshold.

Comparing loan terms: 15-year versus 30-year mortgages

A 15-year mortgage carries a lower interest rate than a 30-year one—usually 0.3% to 0.5% lower. However, your monthly payment is roughly 50% higher because you are paying off the loan in half the time. On a $300,000 loan at 6.5%, a 30-year mortgage costs about $1,896 per month; a 15-year mortgage costs about $2,899 per month. The 15-year saves you roughly $200,000 in total interest, but only if you can afford the payment.

Choose based on your cash flow and long-term plans, not just the rate. A 15-year mortgage makes sense if you have stable income, low other debts, and plan to stay in the home for at least 10 years. A 30-year mortgage makes sense if you want lower monthly payments, plan to invest the difference, or want flexibility in case your income drops. You can also refinance later if your situation changes.

Shopping rates across multiple lenders

Rates vary between lenders for the same borrower. A bank might quote you 6.5%; a credit union might quote 6.25%; a mortgage broker might quote 6.1%. These differences are real and worth pursuing. Get quotes from at least three sources: your current bank (if you have one), a credit union you are a member of or can join, and a mortgage broker who works with multiple lenders.

When you request a quote, ask for a Loan Estimate, which is a standardized form that shows the interest rate, points, closing costs, and monthly payment. The form is required by federal law and makes it easy to compare apples to apples. Request quotes within the same two-week window so the rates are comparable (rates change daily). Do not worry about the hard inquiries; multiple mortgage inquiries within 14 to 45 days count as one inquiry for credit scoring purposes.

Pay attention to closing costs as well as the rate. A lender with a 0.25% lower rate but $2,000 higher in closing costs might not be the better deal if you plan to sell or refinance within five years. Use an online calculator or ask the lender to show you the break-even point—the month when the lower rate saves enough to cover the higher costs.

Understanding mortgage points and when they make sense

A mortgage point is an upfront fee equal to 1% of your loan amount. Paying one point typically lowers your interest rate by 0.25%. On a $300,000 loan, one point costs $3,000 and might lower your rate from 6.5% to 6.25%, saving you roughly $40 per month. You break even after 75 months (about 6 years); after that, you pocket the savings.

Points make sense if you plan to stay in the home for at least as long as the break-even period and have cash available without draining your emergency fund or down payment. They do not make sense if you plan to sell or refinance within five years, or if you are already stretching to afford the down payment. Some lenders also offer negative points (also called a lender credit), where the lender pays some of your closing costs in exchange for a higher rate; this is useful if you have limited cash at closing but plan to stay long-term.

Timing and market conditions

Mortgage rates move with the broader economy and the Federal Reserve's interest rate decisions. You cannot predict or control these moves, but you can watch them. Rates tend to drop when the economy slows or the Fed cuts rates; they rise when inflation is high or the Fed raises rates. If you are flexible on timing, watching rates for a few weeks can show you the pattern, but do not wait for a "perfect" rate—rates rarely stay low for long, and the cost of waiting (higher home prices, losing a home you want) often outweighs the benefit of a 0.25% lower rate.

If you are in the market now, focus on the factors you control: your credit score, down payment, loan term, and shopping multiple lenders. Those moves typically save more than waiting for market conditions to shift.

Frequently Asked Questions

Does paying off debt before applying for a mortgage help my rate?

Yes. Paying down credit card balances and installment loans lowers your debt-to-income ratio, which is the percentage of your monthly income that goes to debt payments. Lenders prefer this ratio below 43%; paying down debt can move you from 50% to 40%, which unlocks better rates. Paying off a car loan or credit card three to six months before you apply also gives your credit score time to recover from the hard inquiry.

Should I lock in my rate or let it float?

A rate lock freezes your rate for a set period (usually 30 to 60 days) so it does not change between the time you lock and closing. A float lets your rate move with the market. Lock if rates are stable or rising; float if rates are falling and you have time before closing. Most borrowers lock because the certainty is worth the risk of rates dropping slightly.

Can I negotiate my mortgage rate with a lender?

Rates are set by the lender based on market conditions and your profile, so you cannot negotiate the rate itself. However, you can negotiate closing costs—asking the lender to waive certain fees or cover some costs in exchange for accepting a slightly higher rate. You can also shop aggressively; lenders know you are comparing them, and some will match or beat a competitor's quote to win your business.

What if my credit score is below 620?

Most conventional lenders require a score of at least 620. If yours is lower, focus on raising it before you apply: pay down debt, dispute errors on your report, and avoid new credit inquiries. You may also explore FHA loans, which allow scores as low as 580, though they require mortgage insurance and have other restrictions. A mortgage broker can tell you which lenders work with lower scores.

Does my employment history affect my rate?

Employment history does not directly affect your rate, but it affects whether you are approved. Lenders want to see two years of stable income. If you recently changed jobs, were self-employed, or had a gap in employment, document your income carefully and be prepared to explain any gaps. A broker or loan officer can advise on how your specific situation will be viewed.