What is the 2026 conforming loan limit in St. Tammany County, LA?

$832,750 for a one-unit property. Loan amounts above that move to jumbo or portfolio investor pricing. On a DSCR purchase at the county average basis of $346,667, an 80% LTV loan is roughly $277,333, so most files here stay inside the limit.

Which St. Tammany County market has the best rental cash flow?

On current modeling, Slidell shows the strongest coverage in the county at about 0.82x, with an estimated $1,500/month lease against a $265,000 basis. Slidell offers the lowest entry price at $265,000. Both are worth modeling on a specific address before you choose a submarket.

Can I use one DSCR lender across multiple St. Tammany County properties?

Yes, and it is usually the faster path. DSCR loans have no cap on financed properties, so once a lender has your entity documents, guaranty and reserve verification on file, subsequent acquisitions in St. Tammany County close on the same underwriting profile — typically 21–30 days per file, with the appraisal on the critical path.

Do property taxes in St. Tammany County affect my DSCR ratio?

Directly. County-assessed taxes sit inside PITIA, which is the denominator of the ratio. At the $346,667 county average, taxes and insurance are already built into the $2,404 monthly PITIA figure above. A reassessment after purchase can move a 1.05x file below 1.0, which is why we underwrite to the reassessed value rather than the seller's current tax bill.

Investor Hub · St. Tammany County, LA

DSCR & Investment Property Loans in St. Tammany County, LA

3 financed rental markets, an average 0.78x coverage ratio, and a $832,750 2026 conforming limit.

Markets Financed

Avg. Investment Basis

$346,667

Avg. Monthly Rent

$1,850/mo

Avg. Monthly PITIA

$2,404/mo

Avg. DSCR Ratio

0.78x

2026 Conforming Limit

$832,750

Investing in St. Tammany County

St. Tammany County covers 3 rental markets we actively finance in Louisiana — Covington, Mandeville, Slidell. Across those markets the median investment basis averages $346,667, a long-term lease averages $1,850/month, and the average all-in PITIA on a DSCR loan at the minimum down payment is $2,404. That produces a county-wide average DSCR ratio near 0.78x.

Basis varies more inside St. Tammany County than the average suggests. Slidell is the lowest entry point at roughly $265,000, while Slidell currently models the strongest coverage ratio in the county at 0.82x. When two towns in the same county ratio differently, it is almost always the rent-to-price relationship rather than the rate — the same loan pricing applies county-wide, so the deal is won on which submarket you buy in.

County-level inputs that move your ratio

Everything in St. Tammany County shares one set of county-level inputs, and they matter to your ratio: the 2026 conforming loan limit here is $832,750, county property tax is assessed and collected at the county level, and recording and transfer charges at closing are set by the county clerk. Those three items are the reason a DSCR file that pencils in one county can fail two counties over at an identical price and rent.

These are long-term rental markets. Short-term rental permitting in St. Tammany County is limited or uncommon, so plan on lease-based DSCR qualification rather than nightly revenue. Average estimated cap rate across the county is 4.00%.

St. Tammany County markets side by side

Market	Median Price	Est. Rent	Est. DSCR	Cap Rate
Covington	$375,000	$1,975/mo	0.76x	3.92%
Mandeville	$400,000	$2,075/mo	0.75x	3.86%
Slidell	$265,000	$1,500/mo	0.82x	4.21%

Each row models a purchase at that market's median price with 20% down at an illustrative 7.50% DSCR rate on a 30-year fixed. Open a market for the full underwriting breakdown.

County averages are calculated across the 3 St. Tammany County markets we model, each at its own median price and market rent. Figures are illustrative estimates, not a loan offer or an appraisal. Conforming limits reflect the 2026 FHFA schedule for this county.

St. Tammany County investor FAQ

Markets and resources in St. Tammany County

Covington investor guide

$375,000 median · 0.76x DSCR

Mandeville investor guide

$400,000 median · 0.75x DSCR

Slidell investor guide

$265,000 median · 0.82x DSCR

DSCR loans in Louisiana

Louisiana DSCR requirements

Louisiana DSCR cash-out refinance

Model a St. Tammany County deal

Send the address and we'll return the real DSCR ratio, PITIA and cash flow — including the county tax and insurance figures that decide whether the file clears 1.0x. Licensed in Louisiana.

Get My Investment Analysis Talk to a Loan Officer