Mortgage Payment Guide · Louisiana
Monthly Mortgage Payment on a $400K Home in Louisiana (2026)
The number most lenders quote for a $400,000 home in Louisiana is $2,002/month — that's principal and interest (P&I) only. It leaves out property taxes, homeowners insurance, and PMI (private mortgage insurance) if your down payment is under 20%. The real all-in monthly payment — lenders call this PITI, short for principal, interest, taxes, and insurance — with 20% down is $2,691. Here's exactly how that breaks down.
New to this? Quick definitions
- PITI —
- principal, interest, taxes, and insurance. The full monthly housing payment, not just the loan piece.
- P&I —
- principal and interest only — what most lenders quote up front, before taxes and insurance are added.
- PMI —
- private mortgage insurance. An extra monthly fee lenders charge when your down payment is under 20%, protecting the lender (not you) if you default.
- DTI —
- debt-to-income ratio. Your monthly debt payments divided by gross monthly income — front-end DTI counts housing only, back-end DTI counts all debts.
Calculate Your Actual Monthly Payment
Mortgage Estimator
Louisiana rates pre-loaded
Monthly Payment
$2,691
estimated all-in payment (PITI)
Tax rate: 0.55% (Louisiana effective rate, Tax Foundation 2024) · Insurance: $6,076/yr (Louisiana average, Insurify 2026)
Excludes HOA fees. Rates and costs are estimates; actual costs vary.
Full Calculator →Rate: 6.4% (Freddie Mac Primary Mortgage Market Survey). Property tax: 0.55% effective rate (Tax Foundation Property Taxes by State 2024). Insurance: $6,076/yr (Insurance.com Rate Analysis 2026).
Full Cost Breakdown: $400,000 Home in Louisiana
| Cost Component | 20% Down ($80,000) | 10% Down ($40,000) |
|---|---|---|
| Home Price | $400,000 | $400,000 |
| Loan Amount | $320,000 | $360,000 |
| Principal & Interest | $2,002/mo | $2,252/mo |
| Property Tax (0.55% rate) | $183/mo | $183/mo |
| Home Insurance | $506/mo | $506/mo |
| PMI (drops ~month 94) | — | $255/mo |
| Total Monthly PITI | $2,691/mo | $3,196/mo |
| Income Needed (28% DTI) | $115,341/yr | $136,992/yr |
| Income Needed (36% DTI) | $89,710/yr | $106,550/yr |
These estimates use Louisiana's 0.55% effective property tax rate (Tax Foundation Property Taxes by State 2024) and the statewide average home insurance premium of $6,076/year (Insurance.com Rate Analysis 2026). Your actual costs will vary by county and property.
Where your money goes each month
Mistakes first-time buyers make
- Comparing lenders only on the interest rate they quote, instead of the APR and total fees on the Loan Estimate.
- Budgeting off the P&I number alone instead of the full PITI payment shown above.
- Not accounting for PMI when putting down less than 20% — it can add hundreds a month until you hit 20% equity.
- Assuming the qualifying DTI limit (28%/36%) is a comfortable target rather than a lender ceiling.
Pro tips
- Get quotes from 3+ lenders within a 2-week window — credit bureaus count them as a single inquiry, so it won't hurt your score.
- Ask every lender for a Loan Estimate so you're comparing rate, fees, and PMI side by side, not just the headline rate.
- Only buy discount points if you'll stay in the home long enough for the lower rate to pay back what the points cost upfront.
- Re-run the numbers above with your real credit score and quote — the statewide rate used here is an average, not your rate.
15-Year vs. 30-Year Mortgage on a $400,000 Home in Louisiana
30-Year Fixed
$2,691/mo
Total interest: $400,583
15-Year Fixed
$3,373/mo
Total interest: $162,955
The 15-year payment is $682/month more than the 30-year. Over the life of the loan, you'd pay $400,583 in interest on a 30-year vs. $162,955 on a 15-year — a difference of $237,628. Whether that tradeoff makes sense depends on your income stability and other financial goals. The 15-year rate used here (5.90%) reflects the historical 0.5% spread between 30-year and 15-year fixed rates (Freddie Mac PMMS).
How Much Do You Need to Earn to Afford a $400,000 Home in Louisiana?
The 28% front-end DTI ratio is the conventional guideline used by Fannie Mae and Freddie Mac: your total housing payment should not exceed 28% of your gross monthly income. When you carry other debts, the 36% back-end DTI limit applies to all obligations combined. Source: Fannie Mae Selling Guide B3-6-02.
| Other Monthly Debts | Income Needed (20% down) | Income Needed (10% down) |
|---|---|---|
| No other debts | $115,341/yr | $136,992/yr |
| $300/mo | $99,700/yr | $116,533/yr |
| $600/mo | $109,700/yr | $126,533/yr |
| $1,000/mo | $123,033/yr | $139,867/yr |
These are qualifying thresholds, not comfortable ones. Lenders can approve borrowers at 43% DTI or higher with compensating factors — that doesn't mean you should borrow that much. Our honest recommendation: target a payment that's no more than 25% of your take-home pay, not gross income.
What Makes Louisiana Mortgage Costs Different from the National Average?
At 0.55%, Louisiana's effective property tax rate is 0.52 percentage points below the national average of 1.07% (Tax Foundation 2024). On a $400,000 home, that saves you $2,080 per year compared to a median-tax state.
Louisiana's average home insurance premium is $6,076/year — $3,895 more than the national average of $2,181 (Insurify 2026). This adds $325/month to your housing costs compared to a typical state.
The rate used in these calculations — 6.4% — reflects Louisiana's 30-year fixed average from the Freddie Mac Primary Mortgage Market Survey. A 0.5% increase in your rate would add approximately $106/month to the principal and interest payment.
Louisiana Rules That Change the Cost of a $400,000 Purchase
Recording fees
Uniform statewide clerk (ex officio recorder) fees under R.S. 13:844: $100 for 1-5 page documents; $200 for 6-25 pages; $300 for 26-50 pages; over 50 pages $300 plus $5 per page; $5 per indexed name after the tenth. (Louisiana State Legislature, retrieved 2026-09-14)
How Louisiana arrives at the property tax bill
10% of fair market value for land and for improvements for residential purposes (La. Const. Art. VII, §18(B)) (Louisiana State Legislature, retrieved 2026-09-14) Louisiana has no general homestead assessment cap; the special assessment level freezes the assessment for qualifying homeowners who are 65 or older or disabled, and is barred if federal adjusted gross income exceeds $150,000 (indexed to CPI from tax year 2028). (Louisiana State Legislature, retrieved 2026-09-14)
Exempts a qualifying owner-occupied homestead from state, parish and special ad valorem taxes on the first $7,500 of assessed valuation (equivalent to $75,000 of fair market value at the 10% residential assessment ratio). (Louisiana State Legislature, retrieved 2026-09-14)
If the assessed value looks wrong, the appeal window is During the parish's 15-day public inspection period of the assessment lists, which begins no earlier than August 15 and ends no later than September 15 (Orleans Parish has a different schedule); board of review determinations may be appealed to the Louisiana Tax Commission., heard first by the Parish assessor / parish board of review (then Louisiana Tax Commission). (Louisiana State Legislature, retrieved 2026-09-14)
Louisiana Housing Corporation: MRB Assisted Program (tax-exempt Mortgage Revenue Bond programs)
MRB Assisted Program (tax-exempt Mortgage Revenue Bond programs) is the first-mortgage programme run by Louisiana Housing Corporation. (Louisiana Housing Corporation, retrieved 2026-09-14) Down payment help comes through MRB Assisted Program assistance payment (forgivable second mortgage): 4% of the original principal mortgage loan amount, as a second mortgage forgiven after 5 years of owner occupancy. (Louisiana Housing Corporation, retrieved 2026-09-14) Minimum credit score: 640. (Louisiana Housing Corporation, retrieved 2026-09-14)
Louisiana Citizens Property Insurance Corporation (FAIR Plan and Coastal Plan)
Statutory residual market: the Coastal Plan provides a residual market for property in the coastal areas of the state designated in the plan of operation; the FAIR Plan provides a residual market for property in the state generally. (Louisiana State Legislature, retrieved 2026-09-14) R.S. 22:1483 requires insurers that file rating plans to provide an actuarially justified discount, credit, rate differential or deductible adjustment for structures built or retrofitted to IBHS FORTIFIED home standards (no statutory percentage). (Louisiana State Legislature, retrieved 2026-09-14)
Check If You Qualify: Debt-to-Income Calculator
Debt-to-Income Calculator
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How Does $400,000 Compare to Other Home Prices in Louisiana?
Frequently Asked Questions
What is the monthly payment on a $400,000 home in Louisiana?
With 20% down ($80,000), the estimated all-in monthly payment on a $400,000 home in Louisiana is $2,691/month. This includes principal and interest ($2,002), property taxes ($183/mo, based on Louisiana's 0.55% effective rate), and home insurance ($506/mo, statewide average). With 10% down, the payment rises to $3,196/month due to PMI of $255/month.
How much do I need to earn to afford a $400,000 home in Louisiana?
Using the 28% front-end DTI guideline (Fannie Mae Selling Guide B3-6-02), you'd need to earn at least $115,341/year with 20% down, or $136,992/year with 10% down, assuming no other monthly debts. If you carry $600/month in other debts, the required income rises to approximately $109,700/year (20% down) under the 36% back-end DTI rule.
Is PMI required on a $400,000 home in Louisiana?
PMI is required on conventional loans when your down payment is less than 20%. With 10% down on a $400,000 home, PMI adds approximately $255/month. Under the Homeowners Protection Act, your lender must automatically cancel PMI when your loan balance reaches 78% of the original purchase price — for this loan, that's around month 94 (~8 years). You can request cancellation earlier at 80% LTV.
Is $400,000 a realistic budget in Louisiana?
Louisiana's median home price is $200,100. A $400,000 budget is above the state median, which puts you in the upper half of the market. Inventory and competition vary significantly by metro area.
What is the difference between P&I and PITI on a $400,000 home?
P&I (principal and interest) is what lenders typically quote: $2,002/month on a $400,000 home in Louisiana with 20% down. PITI adds property taxes ($183/mo) and homeowners insurance ($506/mo), bringing the true all-in payment to $2,691/month — a difference of $689/month that lenders often bury in the fine print.
Can I get a lower rate than 6.4% in Louisiana?
Yes — the 6.4% rate used here is the Freddie Mac PMMS average and represents a well-qualified borrower. Borrowers with credit scores above 760, larger down payments, or who buy discount points can often secure lower rates. The CFPB recommends getting quotes from at least three lenders — even a 0.25% rate reduction saves approximately $18,720 over 30 years on this loan.
Related Resources
DTI Ratio Calculator
How lenders calculate what you can borrow
PMI Calculator
What mortgage insurance costs, and when it comes off
Down Payment Savings Calculator
How much you actually need, and how long it takes to save
FHA vs. Conventional Loans
True 30-year cost comparison with real numbers
Closing Costs Calculator
What you'll pay before the first mortgage payment
What to do with this number
You now know the true monthly payment on a $400,000 home in Louisiana is $2,691 — not just the $2,002 P&I lenders lead with. Here's how to act on it.
Payment feels high at this price?
See the true monthly cost of owning a home in Louisiana, including maintenance and utilities most buyers forget to budget for.
Want a lower payment?
Check down payment assistance programs in Louisiana before assuming you need 10–20% down saved up.
Ready to compare lenders?
Plug your real rate and credit profile into the mortgage calculator and request Loan Estimates from a few lenders.
Monthly payment estimates are for educational purposes. Actual costs depend on your credit score, specific loan terms, local tax assessments, and insurance quotes. Tax and insurance figures represent statewide averages and vary significantly by county and property. Rates are current as of 2026-06 and change daily. Use these estimates as a starting point, not a commitment. Consult a licensed mortgage professional before making borrowing decisions.