Mortgage questions every buyer asks, answered by a lender
We took the mortgage questions people actually search for and put them to Wes Friedman, the mortgage advisor we work with. Work history rules, gift funds, credit utilization, co-borrowers, rate buydowns, and the ordinary decisions that quietly destroy an approval two weeks before closing.
Why one extra payment a year takes years off a mortgage
Long-term mortgages are front-loaded with interest. In the early years most of your payment services interest rather than principal, so anything that reduces the balance early compounds across the whole remaining term.
One extra principal payment a year, made consistently, can retire a 30-year loan measurably sooner. And if you pay off a 30-year fixed at 6% in 25 years, you did not really pay 6% — the effective cost of the loan drops because the interest was calculated across a term you did not use.
Work history: the two-year rule and what breaks it
Lenders want two years of employment history. The common misunderstanding is that it must be two years in the same job or the same career. It does not.
- You can change employers, and you can change fields entirely
- The two years do not have to be consecutive across the same role
- A gap longer than six months is the thing that causes problems
- Health events and maternity leave negate the rule
- After a year off for other reasons, expect to be back at work a minimum of one year
What the underwriter is testing for is stability, not loyalty. Advancing your career by moving jobs is a normal pattern and lenders understand it.
Self-employed and 1099 income
Two years of continuous self-employment income is the standard. In Las Vegas this comes up constantly — convention work, union members working across multiple companies, people holding a stack of 1099s from different payers. Those add up; they do not disqualify you.
One trap worth knowing. If you own a corporation and pay yourself both a W2 salary and self-employment income, you cannot simply raise your own salary to qualify. Underwriters average it over 24 months, so a sudden $4,000 a month increase will not be credited the way you hope.
More on this in the self-employed mortgage guide.
Do not pay off your debt before you talk to a lender
This is the most common well-intentioned mistake. Paying off debt feels like obvious preparation, and it can actively work against you.
A lender can look at your credit and identify which accounts are dragging the score — usually the over-utilized ones. The same money applied to the right account moves your score further than spreading it across everything. Strategy beats volume here.
There is a timing problem too. Creditors can take weeks to report a payoff. Pay something down at the wrong moment and your score has not updated when the underwriter pulls it, which can stall the loan.
What actually moves your interest rate
Two things dominate: your credit score and the loan program you choose — conventional, FHA, VA, USDA or jumbo.
Credit utilization is the lever most buyers ignore
| Utilization | How it reads |
|---|---|
| Under 40% | Ideal target |
| Under 50% | Acceptable |
| Over 50% | Flagged as a high credit user — costs you points |
| 80% (e.g. $4,000 on a $5,000 limit) | Meaningful damage to your score |
The structure behind a perfect score
Three revolving lines of credit — three credit cards — plus one installment loan such as a vehicle, plus a home loan. With good payment history and low utilization, that mix is what a top score is built on. You can also have too many cards; more is not better.
See the credit improvement guide for the longer version.
Where a down payment can legitimately come from
More sources qualify than most buyers assume. The constant across all of them is documentation — every dollar has to be sourced and paper-trailed.
| Source | How it works |
|---|---|
| Gift funds | Government loans: from a family member. Conventional: from anyone. The donor's ability to give is also documented |
| 401(k) | Borrowing against it for a primary residence is a common and accepted source, subject to your plan's terms |
| Cryptocurrency | Must be liquidated to US dollars and paper-trailed. Once it is cash, it is treated like any other funds |
| Stock gains | Same as crypto — liquidate, then document |
| Personal property | Selling a vehicle, ATV or jet ski can work. Needs a bill of sale and evidence the seller owned it, even if the buyer paid cash |
The cleanest way to handle a gift is to have the donor wire the funds directly to the title company. That shortens the paper trail considerably. What does not work is cash appearing in your account with no documented origin.
Co-borrowers
A co-borrower does not have to live in the home — that is a non-occupying co-borrower. On government loans they generally need to be a family member; on conventional loans a friend can qualify. More than one is possible, but every borrower has to qualify on both credit and debt-to-income, and the maximum depends on the loan program.
Detail in the gifts and co-signers guide.
Raises, bonuses and investment property
If your pay changes mid-process
Bonuses can be used, provided you have been receiving them for 24 months or longer. Salary works differently — because salary is fixed regardless of hours worked, lenders do not average it backwards. A raise counts at the new figure.
Investment property down payments
The floor is 20% down. At 25% you generally get a better rate and better terms, which also improves the cash flow on the rent. If the numbers work at 25, it is usually the better structure rather than the minimum.
For running those numbers properly, see how to evaluate a rental property and DSCR loans.
What a loan overlay is, and why it can cost you an approval
An overlay is an additional rule a lender imposes on top of the standard underwriting guidelines for a loan program.
The reason is risk transfer. Loans get packaged and sold on. A lender that underwrites loosely can end up stuck holding a loan that does not perform. Adding restrictions makes the loan more likely to perform and easier to sell — good for the bank, and a narrower gate for you.
This is why the same borrower can be declined at one lender and approved at another on the identical loan program. The guidelines did not change. The overlays did.
Worth asking directly: does this lender add overlays to the program I am applying for?
How rate buydowns work
A temporary buydown reduces your rate for a fixed opening period, then steps back up to the note rate. It is a bridge designed to make the payment workable now and refinance later, not a permanent rate.
A 3-2-1 buydown from a 6.5% note rate
| Year | Rate you pay |
|---|---|
| Year 1 | 3.5% |
| Year 2 | 4.5% |
| Year 3 | 5.5% |
| Year 4 onward | 6.5% for the remaining term |
Shorter versions exist — a 2-1 covers two years, and single-year buydowns are also available. On a $500,000 loan, a buydown of this kind runs roughly $15,000 to $18,000.
That figure is the point. It is a negotiating item. Asking a seller to fund a buydown is often more valuable to a buyer than the equivalent price reduction, because it lands on the payment immediately. Builders have been doing exactly this for years — when a new-home advertisement promises a low rate, this is usually the mechanism behind it.
See buying new construction for how builder incentives are structured, and what a home actually costs per month for the full payment picture.
What blows up a mortgage before closing
Every one of these has cost a real buyer a real closing:
- Applying for a new credit card
- Buying a car before closing — the week-before car purchase is a genre of its own
- Quitting or changing your job, or becoming self-employed
- Running up credit card balances
- Missing any loan payment
- Stopping overtime or extra hours the file was relying on
- Buy-now-pay-later instalments showing up on bank statements
- Unexplained vendor transactions or sudden cash advances
- Large cash deposits with no documented source
- Obligations left off the application, including child support you genuinely forgot about
- Adding a co-signer who has not filed taxes recently
The underlying rule is simple. Between application and closing, change nothing financially. No new accounts, no large purchases, no job moves, no unusual deposits. If something unavoidable comes up, tell your lender before you do it rather than after.
Mortgage FAQ
How many years of work history do I need to qualify for a mortgage?
Two years of employment history, but it does not have to be with the same employer or even in the same field. What matters is consistency and no gap longer than six months. Changing jobs to advance your career is fine. Health events and maternity leave can negate the rule. If you took a year off for a non-health reason, expect to be back at work for at least a year before applying.
Should I pay off my debt before applying for a mortgage?
Not without talking to a lender first. Paying off the wrong accounts can hurt your score rather than help it, and creditors can take weeks to report the payment, which delays your loan. If debt needs to be cleared to qualify, it is usually better to pay it through escrow at closing so the underwriter has clean documentation.
What affects my mortgage interest rate the most?
Your credit score and the loan program you choose. Credit score is driven by payment history, credit utilization, length of credit, inquiries and total debt. Utilization matters more than most buyers realise: using more than 50 percent of your available credit marks you as a high credit user and costs you points.
Can I use gift money for a down payment?
Yes. On government-insured loans the gift generally has to come from a family member. On conventional loans it can come from anyone. Either way the funds have to be sourced and paper-trailed, including the donor's ability to give them. The cleanest method is having the donor wire the money directly to the title company.
How much do I need down for an investment property?
The minimum is 20 percent. Putting 25 percent down generally gets you a better interest rate and better terms, which also improves monthly cash flow on the rent.
How does a 3-2-1 rate buydown work?
It temporarily reduces your rate for the first three years. If the 30-year fixed is 6.5 percent, you pay 3.5 percent in year one, 4.5 percent in year two, 5.5 percent in year three, then 6.5 percent for the remaining term. Shorter versions exist. It is a bridge to a future refinance, not a permanent rate.
What can cause a mortgage approval to fall apart before closing?
Opening a new credit card, financing a car, changing or quitting your job, becoming self-employed, missing a payment, running up card balances, large unsourced cash deposits, buy-now-pay-later payments appearing on bank statements, and undisclosed obligations such as child support. The safest approach between application and closing is to change nothing financially.
Every file is different
These are the general rules. Your situation has specifics that change the answer — which is exactly why the advice throughout this page is to talk to a lender before making a financial move, not after.
Related: how much income you need to qualify, improving your credit, self-employed mortgages, and gifts and co-signers.
Subscribe to InvestwithJim on YouTube
Jim Fong · NV license BS.0068736 · The Jim Fong Group at Real Broker · 702-997-2050
General information only, not a loan commitment or an offer to extend credit. Rates, programs and guidelines change. Confirm current terms with a licensed mortgage professional.