calculate-loan

01 Loan payments

Refinance Quote Dallas TX: Estimate a New Payment

Calculator No. 01-5607 · Updated · Formula and assumptions shown below

Estimated monthly payment $405.53
Total interest
$4,331.80
= Estimated monthly payment × loan term × 12 − new loan amount
New loan amount
$20,000
Input
Interest rate (APR)
8 %
Input
You enter
New loan amount ($), Interest rate (APR) (%), Loan term (years)
You get
Estimated monthly payment ($), Total interest ($)
Rounding
2 dp

Estimate for education, not financial advice. The result follows from the numbers you enter and the formula shown. It is not a quote or an offer, and it does not include fees, taxes or insurance unless the calculator asks for them. Ask your lender for the exact figures.

A refinance quote in Dallas, TX, is a lender’s estimate of the terms and costs for replacing an existing loan with a new one. Use this calculator to estimate a new monthly payment and total interest from a loan amount, APR, and term; it does not retrieve Dallas lender quotes or include refinance fees.

Formula

The calculator estimates a fixed monthly payment using the standard amortizing-loan formula. It first converts the annual percentage rate (APR) to a monthly rate, then spreads repayment of principal and interest across the scheduled payments.

  • p = assumed new loan principal, in dollars.
  • apr = annual percentage rate, entered as a percentage per year.
  • r = monthly interest rate, calculated as apr ÷ 1,200.
  • n = number of monthly payments, calculated as years × 12.
  • pmt = monthly principal-and-interest payment, in dollars.
  • int = estimated total interest over the full term, in dollars.

In symbols, the payment is pmt = p × r ÷ [1 − (1 + r)−n]. The calculator rounds the monthly payment to cents. Total interest is then estimated as the rounded payment multiplied by the number of payments, minus the principal: int = pmt × n − p. Because payments are rounded, the last payment on an actual loan may differ slightly from this simplified estimate.

Worked Example

With the defaults—$20,000 principal, 8% APR, and a five-year term—the monthly rate is 8 ÷ 1,200 = 0.0066667, and the payment count is 5 × 12 = 60.

Substitute those values into the payment formula:

$20,000 × 0.0066667 ÷ [1 − (1.0066667)−60] = $405.53 per month.

Using the displayed, rounded payment, estimated total payments are $405.53 × 60 = $24,331.80. Subtract the $20,000 principal: estimated total interest = $4,331.80. These figures are calculator estimates, not a lender’s offer or payoff statement.

Assumptions

  • The interest rate stays fixed for the entire modeled term.
  • Payments are monthly and made at the end of each modeled period.
  • Interest is compounded monthly using APR ÷ 12.
  • The calculation excludes refinance fees, taxes, insurance, mortgage insurance, escrow, and any other charges or optional products.

What a Dallas Refinance Quote Includes

A quote is a set of proposed loan terms based on information supplied to a lender and its review of the application and property, when relevant. For a mortgage refinance, it may show the proposed amount, rate, term, payment, estimated closing costs, and cash required at closing. The exact documents and figures vary by loan and lender. A quote is not necessarily a final approval, and an advertised rate is not a personalized quote.

Dallas is the location in the question, but this calculator does not apply local pricing or determine eligibility. Loan rates, fees, and approval terms are lender-specific inputs, not values that can be inferred from a city name. Ask the lender for the actual written figures and check what assumptions—such as loan amount, term, and whether costs are paid upfront or added to the balance—underlie them.

How to Compare Refinance Estimates

Compare estimates using the same proposed principal and term where possible. A lower monthly payment alone does not show that a refinance costs less overall: the new loan may extend repayment over more months, and fees may increase the amount borrowed. Consider the full payment schedule and written cost details rather than comparing one number in isolation.

  • Confirm the new balance: Determine whether the estimate includes the existing payoff amount, fees rolled into the loan, or cash taken out.
  • Check the rate and term: Make sure the APR and number of payments match the figures you are comparing.
  • Separate payment from costs: This calculator estimates principal and interest only, not the complete housing payment or cash due.
  • Ask about rate conditions: A quote can depend on assumptions and may change; ask the lender which terms are confirmed and for how long.
  • Review the final disclosure: Use lender-provided documents for exact charges, payment details, and the amount needed to complete the transaction.

Costs, Limits, and Common Misunderstandings

Refinancing replaces an existing loan with a new one; it does not erase the amount still owed. The new principal may differ from the old balance if fees are financed, cash is taken out, or the payoff amount changes before completion. Entering only the balance you hope to refinance can therefore make the estimate unlike the lender’s proposal.

A lower estimated payment does not automatically mean lower total interest. For example, keeping the same balance while stretching repayment over a longer term can reduce the scheduled monthly amount while increasing the number of months interest is charged. Conversely, a shorter modeled term generally means fewer payments, but the payment formula alone does not establish whether a particular offer suits someone’s circumstances.

This calculator is intentionally limited to fixed-rate, level-payment arithmetic. It does not model adjustable rates, variable payment schedules, prepayment, missed payments, exact daily interest, lender fees, taxes, insurance, escrow, or a mortgage payoff quote. APR is an input; do not treat the default 8% as a current Dallas rate or an estimate of what a lender will offer. Obtain the actual rate and fees directly from the lender.

Frequently Asked Questions

How do I get a refinance quote in Dallas, TX?
Request a written estimate from a lender and provide the information it asks for about the existing loan and the proposed refinance. Ask for the assumed loan amount, APR, term, payment, and itemized costs so you can compare like with like.

Does this calculator show current Dallas refinance rates?
No. It calculates a payment from the APR you enter. Rates vary by lender and loan details, so get the applicable rate directly from the lender; the default is only an example input.

Does the monthly payment include closing costs or escrow?
No. The result estimates principal and interest only. Fees, taxes, insurance, mortgage insurance, and escrow are not included unless reflected in the loan amount you enter, and even then their timing and treatment are not modeled.

Why can a refinance quote show a lower payment but more total interest?
A longer term can spread repayment across more months and lower the scheduled payment while extending the time interest accrues. Compare the term and total cost figures, not just the monthly payment.

Is a refinance quote a final approval?
Not necessarily. A quote is an estimate based on stated assumptions; the lender’s review and final disclosures provide the applicable terms and exact figures.

This result is an estimate, and the lender’s disclosure gives the exact figures.

Related

Formula used
in p | New loan amount | $ | 20000 | 1 | 100000000
in apr | Interest rate (APR) | % | 8 | 0.01 | 100
in yrs | Loan term | years | 5 | 0.0833 | 50
out pmt | Estimated monthly payment | $ | round(p * (apr / 1200) / (1 - (1 + apr / 1200) ^ -(yrs * 12)), 2) | 2
out int | Total interest | $ | pmt * yrs * 12 - p | 2

Each line is one input (in, sel, list) or one result (out: label, unit, formula, decimals). How the calculators work

Method: the standard loan formula for this calculation, fixed rate and monthly compounding unless stated, rounded as each result states. Not financial advice; no lender, rate or product is recommended. See formulas and assumptions, the disclaimer or report an error.

More in this section

The whole Loan payments section →