Underwriting · 8 min read
Reviewed by Loan Daddy LLC editorial team · Updated
Property taxes and insurance are both part of the housing payment a DSCR loan is measured against, and in Colorado both can move without warning. Taxes reset on a biennial reassessment cycle and vary by county, school district and special district. Insurance responds to hail exposure along the Front Range and wildfire exposure in the mountains, and it is often the line item that decides whether a property clears its coverage requirement.
Newcomers to Colorado often assume property tax is a simple percentage of value. It is not. The state sets assessment rates by property class, local jurisdictions set mill levies, and the bill for a specific parcel is the product of an assessed value and a stack of levies that includes the county, the city, the school district and any special district with jurisdiction over that address.
Two consequences follow. The first is that effective rates vary meaningfully between counties and even between neighboring parcels inside one county. The second is that values are reassessed on a biennial cycle, so the bill you see today reflects a valuation that may already be a year or two old — and a purchase at a higher price can be reflected in the next cycle. Underwriting from the current bill and then testing a higher figure is not pessimism; it is how the bill actually behaves.
In practice the tax line matters most where prices are high relative to rent. A Denver or Boulder County property carries a large assessed value and therefore a large bill, and that bill consumes a meaningful share of the rent before the loan payment is even considered. In southern Colorado the bill is smaller both absolutely and relative to rent, which is part of why coverage ratios there can look generous.
Special districts are the detail that catches people. Metropolitan districts, water districts, fire districts and bond repayments can add substantially to a bill on a property that sits inside a newer subdivision. If a listing shows a surprisingly low tax figure for new construction in a growth area, check whether the district levy is fully reflected yet. It is common for the first years of a new district to carry a levy that rises as bonds are issued.
Colorado’s Front Range is well-known hail country, and the corridor from Pueblo north through Fort Collins has absorbed a long run of expensive roof and siding claims. Carriers have responded by raising replacement cost assumptions, moving to percentage wind and hail deductibles, requiring roof-age inspections, and declining to write older roofs at all. A landlord policy on a 1920s brick bungalow is a different product and a different price than the homeowner quote a buyer might casually collect.
Wildfire is the second front. Portions of the mountain corridor and the foothills carry wildland-urban interface ratings that some carriers will not touch, or will write only after a defensible-space inspection and at a premium that changes the economics of the property. Insurability is not a formality in these markets — it is a gate. If the property cannot be insured conventionally, the loan does not happen on the terms you modeled, and in some cases it does not happen at all.
Use the county assessor’s record for the parcel and divide the current annual bill by twelve. Then model a higher figure — a common approach is to assume the bill rises with the purchase price rather than staying at the seller’s level — and see whether the ratio still clears. If it does not, you have found the real constraint before you are under contract.
For insurance, get the quote early and treat an increase as likely rather than possible. A useful habit is to run the ratio at the quoted premium and again at a premium meaningfully higher. If the property only works at the first number, the property depends on an insurance market that has been moving against owners for years. That is a business risk, and it belongs in the decision.
Most investment loans collect taxes and insurance monthly into an escrow account, which is why the payment quoted to you includes them. That is convenient and it hides a real dynamic: when the tax bill or the premium rises, the servicer recalculates the escrow and the payment goes up, sometimes by a noticeable amount, and sometimes with a shortage to repay. An investor who budgeted to the original payment will feel that as a margin call on their cash flow.
The practical response is to keep a cushion beyond the reserve requirement and to review the escrow analysis each year rather than waiting for the payment change to arrive. On a thin file, an escrow increase of a few hundred dollars a month is the difference between the property paying for itself and the owner writing a check every month.
A coverage-based loan hands the property the responsibility for its own payment, which means every fixed cost becomes a solvency question rather than a budgeting preference. Colorado combines high and variable property taxes in its expensive counties, a hail belt that has repriced insurance across the population centers, and a mountain insurance market that is contracting. Those are not abstract risks; they are the two line items most likely to move between the day a file is structured and the day the first escrow analysis arrives.
The investors who do well here are not the ones with the most optimistic rent projections. They are the ones who collect the tax bill and the insurance quote first, run the ratio at a stressed version of both, and buy the property that still works.
Questions
They can. Colorado reassesses on a biennial cycle, and a sale at a higher price can be reflected in a later valuation. The bill also moves when a district changes its levy. Underwriting a modest increase into the scenario is standard practice rather than a worst case.
No. An investment property needs a landlord or dwelling policy that reflects rental use, and the lender will require evidence of coverage with the lender named as mortgagee. A homeowner policy on a rented property is a coverage gap, not a savings.
Some properties in wildfire or coastal-adjacent markets need surplus lines coverage at a materially higher cost, and some cannot be placed at all. That outcome changes the housing payment, which changes the coverage ratio. Find out before you commit rather than at the insurance deadline.
It covers the building and common elements to the extent the association’s documents specify, and it usually carries its own deductible that can be assessed back to owners. You still need a unit policy for interior improvements, loss of rents and the deductible gap.
Keep reading
The arithmetic behind debt service coverage, which expenses belong in the denominator, how lenders verify Colorado rent, and why your number and the underwriter’s number differ.
ReadA plain walkthrough of DSCR financing for Colorado rental property: what the ratio measures, which local numbers decide the file, what documents you gather, and where deals stall.
ReadWhat underwriters look for on a nightly-rental property in Breckenridge, Vail, Steamboat or Telluride: license reality, seasonal revenue, HOA rental caps and insurance.
ReadNo rate quotes on a website, no pressure. A short scenario conversation, then a straight answer about what is achievable for that property.