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Austin DSCR Loans: What the Tax Rate Does to Your Ratio

By Matthew MontsDeOca, Independent Mortgage Broker · NMLS #1034513 · Updated September 2026
Chart comparing debt service coverage ratios across Central Texas counties at matched purchase prices and rents

A DSCR loan works the same in Austin as anywhere else. The inputs do not.

Central Texas combines high property tax rates with no homestead cap on investment property, and both land in the denominator of your ratio. An investor using a national rule of thumb for taxes will model a deal that does not exist.

This is the local math.

Programs: DSCR loans · How the ratio is calculated

The tax problem, quantified

DSCR is rent divided by PITIA. Taxes are the T, and in Central Texas they are large.

Effective rates across the metro generally land in the 1.8% to 2.4% range depending on the taxing jurisdictions stacked at a given address — county, city, school district, and often a MUD or ESD.

The same $400,000 property, same $2,700 rent, in two tax environments:

Central Texas @ 2.1%National average @ 1.0%
Rent$2,700$2,700
P&I$1,880$1,880
Taxes (monthly)$700$333
Insurance$185$120
PITIA$2,765$2,333
DSCR0.981.16

The Texas version fails the 1.00 floor. The other clears it comfortably. Identical property, identical rent, identical loan.

Illustrative. Actual rates, assessments and insurance vary by address.

Two mistakes that produce phantom deals

1. Using the seller's tax bill.

A sale resets the appraisal district's basis. If the seller bought in 2016 and has been protected by years of capped increases, their tax bill has little to do with yours.

Pull the current assessment from the county appraisal district — TCAD for Travis, WCAD for Williamson, HaysCAD for Hays — then model taxes on your purchase price, not the existing assessed value. Underwriting will.

2. Assuming exemptions transfer.

They do not. A homestead exemption, an over-65 freeze, a disability exemption — all of them end when the property changes hands, and none of them apply to investment property at all.

The 10% annual homestead appraisal cap also does not apply to non-homestead property. Your assessment can move to market in a single year.

The gap between a long-held homesteaded property's tax bill and what an investor will pay on the same property can be substantial. This is the most common source of a deal that pencils on a listing sheet and fails in underwriting.

Insurance is the second input people underestimate

Texas homeowner and landlord premiums have moved sharply in recent years. Hail exposure across Central Texas drives it, and carriers have tightened.

Three practical points:

  • Get a real quote during the option period, not at underwriting. A stale estimate is the second most common cause of a ratio surprise.
  • Wind and hail deductibles are often percentage-based rather than flat. A 2% deductible on a $400,000 property is $8,000 out of pocket before coverage responds.
  • Short-term rental needs a purpose-written policy, and it costs more. Standard landlord forms commonly exclude it.

A $60/month difference in premium moves a ratio by roughly 0.02-0.03. Two or three such surprises stacked together is a pricing tier.

Where the ratio math still clears

Ratios in Central Texas generally improve as you move out from the urban core, because rent holds up better than price does.

Inside Austin proper — the ratio is hardest here. Price per square foot is highest, the tax stack is full, and rent has not kept pace with the price run of recent years. Deals exist but frequently need 30% down to clear a 1.00 floor, or they are bought for appreciation rather than coverage.

Round Rock, Pflugerville, Hutto — Williamson County. More inventory in the price bands where rent-to-price works. Round Rock's employment base and the SH 130 / I-35 corridor support rental demand. Watch for MUD districts, which add to the tax rate.

Georgetown, Leander, Cedar Park — further out, generally better ratios, and a large stock of 2000s-and-later construction that tends to appraise cleanly and needs less immediate capital expenditure.

Kyle, Buda, San Marcos — Hays County. San Marcos carries a university rental market with its own dynamics: strong demand, by-the-bed leasing in places, and turnover concentrated in a single season.

Bastrop, Elgin, Manor, Taylor — the eastern side. Lower entry prices and often the strongest rent-to-price ratios in the metro. Verify the tax stack carefully, because ESD and MUD layers vary a lot address to address.

MUD districts deserve their own warning. Municipal Utility District taxes can add materially to the total rate — in some newer developments pushing the combined rate well above 2.5%. Two houses a mile apart can have meaningfully different ratios purely because of which MUD they sit in. Always verify the full jurisdiction stack for the specific parcel.

Short-term rental in Austin

Austin's STR ordinance licenses by type, and Type 2 — non-owner-occupied, the investor category — has been the constrained one, with density limits and a litigation history that has changed the rules more than once.

Surrounding jurisdictions differ substantially, and a property outside the city limit can be a materially easier file. Full detail on STR lending and the permit question.

Verify current rules with the specific jurisdiction. This area changes.

Modeling a Central Texas deal properly

Before you write an offer:

  1. Pull the current CAD assessment and note the full jurisdiction stack, including any MUD or ESD.
  2. Model taxes on your purchase price at the combined rate, not on the seller's bill.
  3. Get a real insurance quote for the specific address, with the wind/hail deductible identified.
  4. Check the rent against actual comparable leases, not a listing-site estimate.
  5. Run the ratio at a conservative rate, at the top of any range you have been quoted.
  6. Stress it. Taxes reassess 10% higher, insurance 15% higher, rent 5% lower. If it survives that, it is a deal.

Investors who do these six things find fewer properties and close more of them.

Frequently asked questions

Why do Austin DSCR deals fail underwriting so often? Property taxes. The combined rate lands in PITIA and pushes ratios below the floor, especially when the investor modeled from the seller's tax bill rather than a post-sale assessment on their purchase price.

Do property tax exemptions transfer when I buy? No. Homestead, over-65 and disability exemptions end at sale, and none apply to investment property. The 10% homestead appraisal cap does not apply either.

Which Central Texas areas have the best DSCR ratios? Generally the eastern and northern edges of the metro, where rent holds up relative to price. Inside Austin proper the ratio math is hardest.

What is a MUD and why does it matter? A Municipal Utility District levies its own tax on top of county, city and school rates. It can push a combined rate well past 2.5% and changes your ratio materially. Verify it per parcel.

Can I protest the assessment to improve my ratio? You can protest annually in Texas, and it can reduce your ongoing cost. It will not change what underwriting uses at closing.

Do I need to be a Texas resident? No. Out-of-state and foreign national investors finance Central Texas property regularly.

Is short-term rental viable in Austin? Depends heavily on the jurisdiction and the specific address. City of Austin Type 2 licensing is constrained; surrounding jurisdictions vary. Verify before going under contract.

Next steps

Model the tax line from the CAD assessment and your purchase price before anything else. In this market it decides more deals than the rate does.

Have a deal you want looked at?

Send the property and the numbers — we shop it across lender programs and tell you honestly whether it works.

Talk To A Loan Officer

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Educational content, not a commitment to lend or an offer of credit. DSCR and fix-and-flip loans are business-purpose loans secured by non-owner-occupied property. Program parameters vary by lender and change over time. Figures are illustrative.