Floor three

A lower payment is not the same as a lower cost

Refinancing is the one mortgage decision where the headline number and the right answer routinely point in opposite directions. The payment can fall while the total interest rises, and nothing on the paperwork says so out loud. This page is about the difference.

Find the break-even monthSee the term trap first
No live rates are published on this site. The interest rates used in the calculators are starting values you can change — placeholders chosen to make the arithmetic legible, not quotes, not an average, and not tied to any date.

Three kinds

Three refinances, three different questions

They are all called refinancing, and they are not the same transaction. One changes the terms of a debt, one enlarges it, and one is a shortcut available only to people who already hold a particular kind of loan.

Rate and term

The balance stays the same

You replace the existing loan with a new one for roughly the same amount, at a different rate, a different term, or both. Nothing is taken out. This is the only one of the three where the whole question is arithmetic: does the saving cover the cost of doing it, before you sell or refinance again?

  • The cleanest reason to do it: the rate has moved enough that the saving pays for the costs well inside your holding period.
  • The second cleanest: shortening the term deliberately, accepting a higher payment to stop paying interest for another decade.
  • A third, often overlooked: reaching 80 per cent loan-to-value and dropping conventional mortgage insurance, which is a saving the rate has nothing to do with.

Cash-out

The balance gets larger

Replace the loan with a larger one and take the difference in cash.

  • The money is not free and it is not income. It is a larger loan, secured on the house, usually for another long term.
  • Consolidating card debt into it lowers the interest rate and lengthens the repayment — and moves the debt from unsecured to secured on the roof over your head. That is the trade, and it should be made deliberately.
  • The appraisal governs. Lenders limit how much of the value you may borrow against, so the cheque is decided by somebody else’s opinion of the house, not by your plans for the money.

Streamline

Less paperwork, narrower purpose

Government programmes have simplified refinances of their own loans — the FHA Streamline, the VA Interest Rate Reduction Refinance Loan, and the USDA’s streamlined option. They cut the documentation, and in some cases the appraisal, in exchange for being useful in one situation only.

  • You have to already hold the matching government loan. A streamline does not move you from conventional to FHA, or from FHA to conventional.
  • They generally require a net tangible benefit — a real reduction in rate or payment — rather than simply a new loan on similar terms. The rule exists to stop repeat refinancing that only generates fees.
  • No cash comes out beyond a small incidental amount, and mortgage insurance does not disappear: an FHA streamline carries a new up-front premium, against which a partial refund of the old one may be credited.

Cash-out has its own programme page in the index: read what it costs. The other two are ways of rewriting a loan you already have rather than products with pages of their own.

The term trap

The reset that makes a cheaper payment dearer

Say you are six years into a thirty-year loan. Twenty-four years remain, and the balance has come down. Rates have fallen, so you refinance — into another thirty-year loan, because that is what you are shown by default. The payment drops. Everybody is pleased.

What just happened is that you added six years back. You will now pay for thirty-six years in total on the same house. Six of those years are years of interest that the old loan had already retired, and they are added at the far end where you cannot see them. Whether the lower rate makes up for them is a genuine calculation — sometimes it does — but it is a calculation, not a certainty, and the smaller payment does not answer it.

The second half of the trap is amortisation. A mortgage pays interest first: early payments are mostly interest and late payments are mostly principal. Six years in, you had worked your way partway down that curve. A new thirty-year loan puts you back at the top of a fresh one, so a larger share of every payment goes to interest again — on top of having more payments to make.

None of this makes refinancing wrong. Cash flow is a real constraint and a lower payment can be exactly what a household needs. The problem is only ever that the trade went unstated.

See the interest-first curveCompare both loans side by side

Costs and break-even

What it costs, and the month it pays for itself

A refinance is a new loan, so it carries most of the costs of one: origination, an appraisal unless the programme waives it, title work and a new lender’s title policy, recording, and the prepaid interest and escrow deposits that come with any new mortgage. Some of it is money you get back — the old escrow account is refunded — and some of it is simply spent.

Divide what you spend by what you save each month and you have the break-even: the month from which the refinance is ahead. Before it, you are behind by the costs. If you expect to sell, move or refinance again before that month arrives, the arithmetic has already answered you.

Two things quietly move that month. Rolling the costs into the balance does not remove them — it borrows them at the new rate for the new term, so it lengthens the payback rather than eliminating it. And a saving that only exists because the term got longer is not really a saving at all, which is why the break-even page shows the total interest beside the monthly difference.

When not to

Four cases where the answer is no

A page that only lists reasons to refinance is an advertisement. These are the situations where the arithmetic usually says leave it alone.

You are moving soon

Refinancing costs money now to save money later. If you sell before the break-even month, you paid the costs and collected part of the saving. The holding period, not the rate drop, is what decides this — which is why the break-even page asks for it.

The saving is real but the term restarts

A lower payment on a fresh thirty-year clock can raise the total interest you pay even at a lower rate. It is still the right move sometimes — cash flow is a real constraint — but it should be a choice made with the number in front of you, not a surprise found years later.

You are close to the end

Late in a loan, almost every dollar of the payment is principal. There is very little interest left to save, so a refinance mostly buys new closing costs and a new amortisation curve that puts you back to paying interest.

You would be rolling costs in every time

Financing the closing costs into the balance makes a refinance feel free. It is not: the costs are now borrowed, at the new rate, for the new term. Doing it repeatedly walks the balance upward while the payment appears to fall each time.

Questions

Five asked about refinancing

How much does the rate have to fall before refinancing is worth it?

There is no threshold, and the rules of thumb — half a point, one point — are wrong more often than they are right. What matters is the cost of doing it divided by the monthly saving, compared against how long you will keep the loan. A small saving with low costs can pay back faster than a large saving with high ones.

Will a refinance restart my thirty years?

It will if you take another thirty-year loan, and that is the default almost everywhere. You can ask for the remaining term instead — a twenty-four or twenty-year loan if you are six or ten years into the original — or take the thirty and keep paying the old, higher payment, which amortises it down at close to the old speed.

Does taking cash out change what kind of loan I have?

It changes how it is priced and how much you may borrow. Cash-out refinances are treated as a higher risk than rate-and-term ones and are usually limited to a lower share of the appraised value. The loan is still a mortgage secured on the house — that part does not change, which is the point worth pausing on if the cash is repaying unsecured debt.

Can I refinance if the value has fallen?

Sometimes. Streamline programmes on government loans can waive the appraisal in some circumstances, which is precisely what makes them useful when the value is uncertain. On a conventional loan the appraisal governs, and a lower value means a higher loan-to-value, which affects both eligibility and mortgage insurance.

Does this site quote refinance rates?

No. There is no rate table anywhere on this site and no APR. The refinance calculator takes a rate you type in — your current one and a hypothetical new one — and shows what the difference between them is worth against the costs you enter. The rate is your input, never our claim.

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