A refinance is a new loan. The new lender underwrites the borrower and the property, issues a new note and deed of trust, and pays off the old loan at closing. A rate-and-term refinance limits what the new loan can pay for: the existing first mortgage, closing costs, prepaid items and escrow, and in some cases an existing second lien that was used to buy the home. Cash beyond the investor's small allowance makes it a cash-out refinance. On a Texas homestead that can be a different constitutional loan, with very different rules.
The reasons to do one are straightforward: a lower rate, a different term, moving from an adjustable rate to a fixed rate, or moving from one program to another, such as FHA to conventional to stop FHA mortgage insurance.
The new lender pays off the old lender. The borrower signs a new note. A few steps happen along the way:
The term can be shorter or longer than the time left on the old loan.
On a purchase, loan-to-value uses the lower of price and appraisal. On a refinance there is no price, so the appraisal, or the value the automated system accepts with a waiver, sets the figure. That number decides whether mortgage insurance is needed, how the loan is priced, and whether the file fits the program at all. Tax appraisal district values and online estimates are useful for a rough guess, but the underwriter uses the appraisal. A refinance planned around removing mortgage insurance depends on the appraised value reaching the program's threshold, so it helps to look honestly at recent comparable sales in the neighborhood before ordering one.
Mortgage interest is paid in arrears. The payment due on the first of a month covers the interest for the month before. When the old loan is paid off, the payoff includes interest from the last payment through the payoff date. The new loan collects prepaid interest from closing through the end of that month, and the first payment on the new loan is due the first of the month after the next one.
That timing often means a month with no mortgage payment due. The interest for that time was still paid, partly in the old loan's payoff and partly in prepaid interest on the new loan. It is a timing feature, and it is already built into the costs on the Closing Disclosure.
A refinance has costs: lender fees, the appraisal, title insurance on the new loan, recording, and prepaid items like interest, insurance, and the new escrow account. The Loan Estimate lays them out in sections A through H.
Borrowers can pay the costs in cash, roll them into the new loan amount, or accept a slightly higher rate in exchange for a lender credit that covers some of them. Each choice affects the comparison.
This article will not compute a break-even month. That math needs the costs and the payment on that borrower's Loan Estimate. The concept is simple: divide the costs by the monthly savings to see how long it takes to recover them, then compare that to how long the borrower expects to keep the loan. A careful version also looks at how much principal each loan pays down over the same period and at the total interest left to pay, since a lower payment can come from a longer term instead of a lower rate.
An owner wants a lower rate. The useful pages are the payoff, the costs, and whether those costs are paid in cash or added to the balance. If the payment drops only because a loan with a few years left is stretched into a new long term, that choice should be named. A longer schedule on the same balance lowers the payment and raises the total interest.
The opposite move works too. An owner who is several years into a 30-year loan can refinance into a 15-year or 20-year loan. Some lenders write a custom term matching the years left on the old loan, so the finish date stays the same while the rate drops.
An FHA loan refinanced into a conventional loan can leave FHA mortgage insurance behind if the new loan-to-value does not require private mortgage insurance. When the home has gained enough equity, that move can remove a monthly charge entirely. If the new conventional loan is still above 80 percent loan-to-value, private mortgage insurance applies, though it follows the Homeowners Protection Act and can be removed later.
The reverse starts FHA premiums. Refinancing from conventional to FHA brings a new upfront premium and annual premium under HUD's current table.
Moving from an ARM to a fixed rate trades the possibility of future rate changes for a known rate. Moving from fixed to an ARM does the opposite. Either is a rate-and-term refinance as long as no meaningful cash comes out.
On a Texas homestead, staying inside a rate-and-term refinance is different paperwork from a home-equity cash-out. The Texas Constitution sorts homestead liens into categories, and a refinance of existing debt with no new money falls into one category while a refinance that takes cash out, or pays off debts that were not liens on the house, falls into the Section 50(a)(6) home-equity category with its own caps, fee limits, and waiting periods.
Two common Texas situations:
A refinance and a recast are separate tools. A recast keeps the note and re-amortizes after a lump-sum payment. A refinance replaces the note.
FHA and VA have reduced-documentation refinance paths for existing FHA and VA loans. FHA's is the streamline refinance. VA's is the Interest Rate Reduction Refinance Loan, often called an IRRRL. Each has its own benefit test and rules. A conventional loan generally does not have a comparable streamline, though automated findings sometimes reduce documentation or waive the appraisal on a strong file.
If there is a home equity line or second mortgage that will stay in place, the second-lien holder has to agree to subordinate, meaning it stays in second position behind the new first loan. That approval has its own timeline.
Fictional example: two Fort Worth neighbors each consider a refinance. The first has an FHA loan, has gained equity, and wants to stop paying FHA mortgage insurance. The appraisal decides whether a conventional loan can avoid private mortgage insurance. The second has a conventional loan and wants to pay off a car loan in the refinance. On a Texas homestead, paying non-mortgage debt makes it a home equity loan, so the second neighbor is looking at a different loan with its own rules, not a rate-and-term refinance. Neither decision rests on a rate alone; both rest on the paperwork and the costs on the Loan Estimate.
For comparing the cost of buying the rate down, see discount points.
If you want your current loan compared side by side with a refinance, including costs, term and how long you plan to stay, send me your latest mortgage statement and I will lay it out. Book a call, or start an application.
Links checked Oct 21, 2026.
About the author: McKade Lively, NMLS 2704474, American Pacific Mortgage Corporation dba True North Home Loans, NMLS 1850.
Equal Housing Opportunity.
Last reviewed: Oct 2026