What should you not do before buying a house?

Asked by: Prof. Bryce Marks MD  |  Last update: March 17, 2026
Score: 4.3/5 (6 votes)

Before buying a house, don't make big financial changes like taking on new debt, changing jobs, moving large sums of money, or closing credit accounts, as this signals risk to lenders and can derail loan approval. Also, avoid applying for new credit, co-signing loans, making big purchases on credit, or failing to communicate with your lender, as these actions destabilize your financial profile just as you need it to be rock solid.

What to avoid before buying a house?

6 Mistakes to Avoid When Buying a House

  • Making Credit Inquiries.
  • Opening a New Line of Credit.
  • Missing a Payment.
  • Moving Money Around.
  • Changing Jobs.
  • Leasing or Buying a Car.
  • Ready to Purchase a Home?

What is the 3 3 3 rule in real estate?

The "3-3-3 Rule" in real estate refers to different guidelines, most commonly the 30/30/3 Rule (30% housing cost, 30% down payment/reserves, home price < 3x income) for buyers, or a connection-based marketing tactic for agents (call 3, send notes 3, share resources 3). Another version for property investment involves checking 3 years past, 3 years future development, and 3 comparable nearby properties. 

What salary do you need for a $400,000 mortgage?

To afford a $400k mortgage, you generally need an annual income between $100,000 and $125,000, though this varies significantly with interest rates, down payment size, property taxes, and your existing debts, with lenders typically looking for a < Debt-to-Income Ratio (DTI) below 43% and housing costs under 28% of gross income. A higher income makes it easier to meet these guidelines, especially with a smaller down payment or higher interest rates. 

What are the 4 C's of homebuying?

So, what do lenders look at when deciding to approve or deny an application? Lenders consider four criteria, also known as the 4 C's: Capacity, Capital, Credit, and Collateral.

Don't Make These First-Time Buyer Mistakes

24 related questions found

How much of a mortgage can I afford if I make $70,000?

With a $70,000 salary, you can generally afford a home in the $180,000 to $350,000 range, but this depends heavily on your debt, credit score, and down payment; using the 28/36 rule (housing under 28% of income, total debt under 36%), your monthly housing payment should be under about $1,633, translating to a mortgage of roughly $210,000 to $280,000 or more, with a larger down payment and excellent finances allowing for a higher price point. 

What is the 2 2 2 credit rule?

The 2-2-2 credit rule is a guideline for building a strong credit profile, suggesting you have two active revolving accounts (like credit cards) open for at least two years, with on-time payments for those two consecutive years, often with a minimum $2,000 limit per account, demonstrating reliable credit management to lenders. It shows you can handle multiple credit lines consistently, reducing lender risk and improving your chances for approval on larger loans, like mortgages.
 

What is a good credit score to buy a house?

A strong credit score could help you secure a lower mortgage rate. You generally need a credit score of at least 620 to qualify for a conventional mortgage, though every lender is different. FHA loans, which are backed by the federal government, may be an option for individuals with credit scores as low as 500.

Can I afford a 500K house on 100K salary?

You likely cannot comfortably afford a $500k house on a $100k salary, as general guidelines suggest needing closer to $120k-$160k income, with a $100k salary usually fitting a $350k-$400k home due to the 28/36 rule (housing costs under 28% of gross income). While lenders might approve a larger loan, it depends heavily on your existing debt, credit score, down payment, interest rates, and local taxes/insurance, which can strain your budget and leave you house-poor. 

What credit score is needed for a mortgage?

However, most lenders still require your score to be at least 600 for an insured mortgage, even with a co-signer. How long does it take to raise my score enough to buy a home? Raising your credit score enough to buy a home (typically up to at least 600–680) can take anywhere from about 3 to 12 months.

What is a red flag when buying a house?

Red flags when buying a house include structural issues (foundation cracks, sloping floors), water problems (stains, musty smells, poor drainage), sloppy renovations (uneven tile, gaps), bad smells, outdated or failing systems (HVAC, electrical), and seller behaviors like being evasive or covering up problems with fresh paint, all signaling potential hidden, costly repairs. Always get a professional inspection to uncover these issues before committing. 

What is Dave Ramsey's mortgage rule?

Dave Ramsey's core mortgage rule is that your total monthly housing payment (PITI: Principal, Interest, Taxes, Insurance + HOA) should not exceed 25% of your monthly take-home pay, ideally on a 15-year fixed-rate conventional mortgage, with a 20% down payment to avoid PMI, all while being debt-free (except the mortgage) and having an emergency fund first. This approach aims to prevent "house poor" situations, allowing for savings, investing, and faster debt freedom.
 

What is the lowest commission a realtor will take?

For the lowest real estate commissions, look to services like Clever (around 1.5% listing fee), Redfin (1.5% listing, 1% if buying/selling with them), and Houwzer/Trelora (around 1% listing fee), though some of these models offer reduced service or are location-dependent; these significantly undercut traditional 2.5-3% listing fees, saving thousands, but always confirm if the buyer's agent commission is included.
 

What is the biggest red flag in a home inspection?

The biggest home inspection red flags involve costly structural, water, electrical, and pest issues, including foundation cracks, sloping floors, major water intrusion (roof/basement), active leaks, outdated/unsafe electrical systems (knob & tube, aluminum wiring, overloaded panels), and pest infestations (termites, rodents), as these threaten safety and incur significant repair bills. Fresh paint, strong odors, and improper grading are also major warnings, often masking deeper problems. 

What not to say when buying a house?

8 Things You Should Never Say When Buying a Home

  1. 'This is my dream house!' ...
  2. 'That couch is hideous' ...
  3. 'I can afford to spend X' ...
  4. 'I can't wait to get rid of that' ...
  5. 'Why are you selling?' ...
  6. 'What's it really like to live here?' ...
  7. 'You'll never get that price!'

What is the first thing you should do when you want to buy a house?

When you buy a house, immediately secure it by changing locks and codes, set up utilities, update your address with USPS, DMV, and other key contacts, test smoke/CO detectors, and document everything, using the inspection report as your first maintenance guide, while also arranging for a deep clean and planning for future upkeep.
 

How much house can I afford if I make $70,000 a year?

With a $70,000 salary, you can generally afford a house in the $210,000 to $350,000 range, but this heavily depends on your down payment, credit score, and existing debts; lenders look for monthly housing costs under $1,633 (28% of gross income) and total debts under $2,100 (36% of gross income). A larger down payment and lower debts allow you to afford a more expensive home, while high interest rates decrease your buying power. 

What are common first-time home buyer mistakes?

Ignoring Their Budget

One of the most common mistakes first-time home buyers make is underestimating the costs involved. It's crucial to establish a budget and stick to it. Include not just the mortgage, but also property taxes, insurance, maintenance, and unexpected expenses. A common rule of thumb is the 28% rule.

How does my credit score affect my mortgage?

Your credit score is a key factor mortgage lenders use to determine: Mortgage approval: Higher scores increase your chances of getting approved for a mortgage. Interest rates: Lower scores often mean higher interest rates, which can cost you thousands over the life of a loan.

What is the 3 7 3 rule in mortgage?

The "3-7-3 Rule" in mortgages refers to federal disclosure timing under the TILA-RESPA Integrated Disclosure (TRID) rule, ensuring borrower protection: lenders must provide the initial Loan Estimate within 3 business days of application, require a 7-day waiting period before closing from that delivery, and trigger another 3-day waiting period if the Annual Percentage Rate (APR) changes significantly (over 1/8% for fixed loans) before closing. This rule, stemming from the Mortgage Disclosure Improvement Act (MDIA), provides crucial time for borrowers to review and compare loan terms, preventing rushed decisions. 

Does my income affect mortgage approval?

Lenders consider monthly housing expenses as a percentage of income and total monthly debt as a percentage of income. Both ratios are important factors in determining whether the lender will make the loan.

How quickly can I get my credit score from 500 to 700?

Getting your credit score from 500 to 700 can take anywhere from a few months to over a year (12-24 months being common), depending on your starting point, but consistent habits like paying bills on time, paying down debt, and avoiding new credit applications can accelerate progress, with quick wins possible in 30-90 days through actions like paying off cards or disputing errors. The path involves disciplined, positive credit behavior, focusing on high-impact factors like payment history and low credit utilization. 

What is the Trump credit card?

Donald Trump doesn't use a typical personal credit card; instead, he promoted and uses the "Trump Gold Card," a high-value visa program for wealthy investors, and also has the "Trump Card Privileges Program" for his hotels, but the well-known "Gold Card" is a new immigration initiative for investors, not a regular payment card. The Gold Card offers a fast track to U.S. residency for those investing significant amounts, with options like $1 million for individuals and $2 million for corporations, plus fees. 

How can I pay off my 30 year mortgage in 10 years?

Here are some ways you can pay off your mortgage faster:

  1. Refinance your mortgage. ...
  2. Make extra mortgage payments. ...
  3. Make one extra mortgage payment each year. ...
  4. Round up your mortgage payments. ...
  5. Try the dollar-a-month plan. ...
  6. Use unexpected income. ...
  7. Benefits of paying mortgage off early.

What is a realistically good credit score?

A realistically good credit score is typically in the 670-739 range (FICO), but aiming for 740 or higher (Very Good to Exceptional) gets you the best loan rates, with the national average around 715, making scores in the high 600s to mid-700s a solid, attainable goal for most consumers.