Construction loan reserve requirements are one of the most confusing parts of construction to permanent financing (C2P). One of the most frequently asked questions is:
How much money will I need to have left after closing?
Unfortunately, I can only provide one answer. Because one bank may require a certain number of monthly housing payments. Another may calculate reserves as a percentage of the construction loan. A third may include every mortgage the borrower owns and require enough liquidity to cover a year or more of all the outstanding combined payments.
That can make construction financing feel mysterious. It can also create unexpected problems when an otherwise strong borrower is declined because they do not satisfy a lender’s minimum reserve formula.
Many custom home construction-to-permanent financing programs are portfolio loans. The lender may fund and retain the loan rather than immediately selling it into the traditional secondary mortgage market.
Because each portfolio lender establishes its own credit policies, two lenders can review the same borrower and reach very different conclusions.
First, what Are Post-Closing Reserves?
Post closing reserves are the financial resources a borrower has remaining after paying the required:
- Down payment
- Closing costs
- Builder deposits
- Payoffs
Reserves are not necessarily additional funds paid to the lender or placed into an escrow account. In most cases, they are assets that remain available to the borrower after closing.
The Consumer Financial Protection Bureau’s explanation of construction loans notes that construction funds are generally advanced as work progresses. This structure is different from a traditional mortgage used to purchase an already completed home.
Depending on the lender and loan program, eligible reserves may include:
- Cash accounts
- Money market funds
- Stocks, bonds and marketable investments
- Vested retirement balances
- Certain business liquidity
- Equity in another property
- Other documented financial resources
Hold on, not every lender counts these assets in the same way. Some institutions count only cash and highly liquid accounts. Others may recognize a percentage of investment or retirement assets. A portfolio lender may also consider substantial equity in a borrower’s current residence, especially when that property is expected to be sold before conversion.
These differences are often where the confusion begins.
Why Do Construction Lenders Require Reserves?
Construction loans contain risks that are not normally present when purchasing a completed home.
Unlike a traditional loan, a custom build may experience:
- Cost overruns
- Change orders
- Material increases
- Construction delays
- Permit or inspection issues
- Theft or loss
- Changes in employment or income
The builder contract can also determine who is responsible for unexpected expenses. Understanding the difference between fixed-price and cost-plus construction contracts is important because each structure allocates cost-overrun risk differently.
A lender wants to determine whether the borrower can manage the project if everything does not go exactly according to plan.
The disagreement is usually not about whether financial strength matters. The disagreement is about how that strength should be measured.
How Lenders Calculate Construction Loan Reserve Requirements
Because construction loans are portfolio products, construction loan reserve requirements can be calculated in many ways.
Percentage of the Construction Loan
A lender may require the borrower to retain assets equal to a specified percentage of the loan amount. On a larger custom home project, even a modest percentage can create a substantial liquidity requirement.
For example, a lender requiring reserves equal to 10% of a $2 million loan would expect the borrower to retain $200,000 after the down payment, closing costs and other required funds have been paid.
This method is simple, but it does not always account for the borrower’s actual monthly obligations or complete financial position.
Total Months of the New Housing Payment
Another lender may require enough reserves to cover a specified number of months of the proposed housing payment. That calculation could include:
- Principal
- Interest
- Property taxes
- Homeowners insurance
- Mortgage insurance, when applicable
- Homeowners association dues
- Flood Insurance premiums
Depending on the lender and the perceived risk of the transaction, the requirement could equal 12, 24 or even 36 months of the future payment.
Total Payments on All Properties Owned
Borrowers who will continue to own a departure residence, rental home or second home may face a more extensive calculation.
The lender may add the principal, interest, taxes and insurance for every financed property. It may then require the borrower to retain enough funds to cover 12 to 24 months of all those payments.
This can create a substantial requirement for borrowers with multiple properties, even when those properties have meaningful equity or produce rental income.
A Fixed Minimum Requirement
Some lenders establish a minimum number of months that every borrower must document, regardless of the complete financial profile. Hence, the borrower either meets the requirement or does not.
These policies are not necessarily unreasonable. Every lender has its own risk tolerance, funding structure and construction lending experience.
However, a fixed formula does not always tell the entire story.
Even within standardized mortgage financing, reserve treatment can vary according to occupancy, property type and the number of financed properties. For comparison, Fannie Mae’s minimum reserve requirements apply different standards to different loan scenarios.
Portfolio construction lenders can create additional requirements based on their appetite which is subject to change with economic conditions.
When the reserve formula feels like a secret, ask the lender to explain it before you proceed.
The Difference Between a Formula and Full Credit Analysis
Consider two borrowers applying for the same construction loan.
The first borrower satisfies the lender’s minimum savings requirement but:
- Is making a relatively small equity contribution
- Has limited retirement savings
- No other real estate holdings
- Has higher debt service ratios than the traditional 43%
The second borrower falls slightly below the lender’s capital reserve formula but has:
- Substantial vested retirement assets
- Significant equity in a departure residence
- Excellent credit
- Stable and increasing income
- Limited consumer debt
- Considerable equity in the construction project
A rigid reserve rule may approve the first borrower and decline the second.
A balanced credit analysis asks a broader question:
Does the borrower have the overall financial capacity to complete the project and manage an unexpected disruption?
Answering that question requires more than dividing an account balance by a monthly mortgage payment.
A Balanced Approach to Construction Reserves
Does one analysis provide any guarantee on the borrower’s performance? Should lenders apply one universal reserve formula to every borrower and every construction project? No.
Each credit request must still be fully documented and carefully underwritten. However, we evaluate the complete financial picture rather than treating one reserve calculation as the only measure of risk.
A practical review may include:
- Income and employment stability
- Credit history
- Overall debt obligations
- Cash remaining after closing
- Investment assets
- Vested retirement funds
- Equity in the construction project
- Equity in a departure residence
- Anticipated sale of another property
- Construction contingency funds
- Project size and timeline
This does not mean reserves are unimportant. It also does not mean that every transaction can be approved without adequate financial resources.
It means construction loan reserve requirements can be considered as part of the overall credit decision rather than as one isolated pass or fail test.
A borrower who does not satisfy another lender’s minimum month requirement may still have meaningful financial strengths that deserve consideration.
Those strengths may include:
- Age of client and non-qualified retirement assets
- Significant real estate equity
- Low overall leverage
- A fixed price construction contract
- Increasing income
- Excellent credit
- Number of mortgages outstanding
The goal is not to eliminate prudent underwriting. The goal is to apply it thoughtfully.
Post Closing Reserves and Construction Contingency Are Different
Post-closing reserves should not be confused with the contingency included in the construction budget.
A construction contingency is generally intended to cover unexpected project costs, such as:
- Material price increases
- Changes to the plans
- Unexpected site work
- Additional labor
- Other construction overruns
Post closing reserves measure the borrower’s broader financial capacity to manage the loan and other obligations if circumstances change. A strong construction transaction may need both.
The National Association of Home Builders discusses planning for unexpected costs in its guidance on construction contingency funds.
Borrowers can also use our construction loan calculator to organize the land cost, builder contract, soft costs, contingency and other components of the project.
A properly structured contingency can reduce the likelihood that every unexpected construction expense must be paid directly from the borrower’s personal reserves.
What Happens When a Borrower Falls Short?
We are seeing more borrowers come to us after being told they do not have enough reserves.
In many cases, the borrower is financially strong but does not fit the first lender’s specific formula.
For example, the borrower may:
- Have substantial net worth held in retirement accounts
- Own a departure residence free and clear
- Existing home listed for sale
- Be contributing considerable cash to the project
- Self employed with strong income but limited personal funds
- Own investment properties that are producing income
- Have a conservative Loan to Value ratio
Those details matter!
A borrower who contributes a large amount of cash may show fewer liquid assets after closing. At the same time, that cash contribution reduces the lender’s LTV risk.
A borrower may have limited cash but substantial vested investment or retirement assets. Retaining the departure residence may have an additional housing payment, but that property may also contain considerable equity.
Construction underwriting should evaluate how all those factors work together.
Common questions about C2P qualifying, post-closing reserves and how lenders evaluate construction loan risk.
Questions to Ask a Construction Lender
Before committing to a lender, borrowers and builders should ask:
- How are post-closing reserves calculated?
- Is the requirement based on the loan amount or monthly payment?
- Are payments on other properties included?
- How many months of reserves will be required?
- Which types of assets are eligible?
- How are vested retirement accounts qualified?
- Can all stocks investment accounts be used?
- Can equity in a departure residence be considered?
- Is the reserve amount a firm minimum?
- Could the requirement change before closing?
- Are additional reserves required when the loan converts to permanent financing?
- Is there a free float down when the loan converts from temporary to permanent financing?
These questions should be addressed early ideally before the borrower signs a construction contract, purchases land or makes a large nonrefundable deposit.
A meaningful construction preapproval should evaluate more than income and credit. It should also review:
- The type of construction contract (fixed vs variable)
- The borrower’s required cash investment
- The construction contingency
- Existing property obligations
- The expected post-closing financial position
The Bottom Line
Construction loan reserve requirements are an important part of responsible construction lending. They help protect both the borrower and the lender when a project encounters delays, overruns or other unexpected events.
However, reserves should not always be viewed through one inflexible calculation.
Because many C2P loans are portfolio products, different lenders may reach different conclusions using the same borrower information.
A decline from one institution may reflect that lender’s internal reserve policy rather than a fundamental problem with the borrower or construction project.
Using full documentation, prudent underwriting, and a balanced review of the complete credit profile usually works best.
We do not promise that reserves will never be required or that every transaction will qualify. We believe strong borrowers deserve to have their complete financial position evaluated, not merely checking the right box.
For borrowers who have been told they fall short of another lender’s reserve requirement, the next step may not be abandoning the project.
It may be having the transaction reviewed by a construction lender willing to examine the full financial picture.
Planning a custom home or evaluating a construction loan? I have over 20 years experience in the specialty. Let’s review the project, financing structure and anticipated post closing position before you make a major financial commitment.
All loans are subject to credit approval, program requirements, property eligibility and applicable underwriting guidelines.
