How an FHA Lender Counts Income and Debt for a First-Time Buyer

The Quick Read: The lender adds up your gross monthly income, adds up your monthly debts plus the new housing payment, and divides one by the other. That produces two ratios, and both have to fit inside the limits the file qualifies for. Gross income means pay before taxes, not take-home. The debts come mostly from your credit report, so what shows there matters as much as what you tell the lender.

What Does the Lender Actually Build?

The lender builds two ratios from two totals. Both use gross monthly income as the bottom number. The top number changes: first the housing payment alone, then the housing payment plus every recurring debt.

Here is the formula in plain terms:

• Housing ratio = proposed total monthly housing payment ÷ gross monthly income.
• Total-debt ratio = proposed housing payment + all other monthly debts ÷ gross monthly income.

The CFPB defines debt-to-income as all monthly debt payments divided by gross monthly income, and notes that limits differ by loan product and lender. That last part matters. A number that works on a conventional file may not work on an FHA file, and the reverse is also true.

Across the wholesale programs Lendmire places FHA files with, the base pair is 31/43 with no compensating factors. Documented compensating factors can push that as far as 40/50 at the top tier. Those figures are guidelines, subject to lender guidelines and full file review, and not a commitment to lend. Individual lenders can also add stricter standards of their own, called overlays.

If you want the program overview first, Lendmire’s FHA loan programs page covers the basics.

Key Terms Defined

• Gross income: Your pay before taxes and deductions.
• Effective income: The monthly income figure the lender decides it can count, after averaging and verification.
• Housing ratio (front-end): The proposed total housing payment as a share of effective income.
• Total-debt ratio (back-end): The housing payment plus all other recurring debt payments, as a share of effective income.
• Compensating factor: A documented strength in the file, such as reserves or a low payment increase, that supports a higher ratio.
• Overlay: A lender’s own rule that is stricter than the FHA baseline.
• Automated finding: The Accept or Refer result from FHA’s scoring system.

How Does the Lender Count Your Income?

Income counts when the lender can verify it, average it and reasonably expect it to continue. The standard starting point is a two-year history. It does not have to be with one employer, but it has to be documented.

HUD’s guidance on employment documentation, in Mortgagee Letter 19-01, describes the traditional route. The lender obtains the most recent pay stub and a written verification of employment covering two years, or a direct electronic verification covering two years. The two-year check can be shortened when the current employer confirms the history and only base pay is used.

How each income type usually gets handled:

Exact history requirements for overtime, commission and self-employment vary by lender and by file, and the manual-underwriting text lives in HUD’s Handbook 4000.1. Treat the table as the general pattern, not a promise for your file.

A few things trip up first-time buyers on the income side:

• Variable pay. Overtime that showed up for three months is not the same as overtime that shows up for two years. The lender averages what the paperwork supports, not what you expect next year.
• Self-employment dips. When business income falls year over year, the lender can use the lower figure. A sharp drop can also push a file toward manual review.
• Gaps. A break in work does not end the file. A documented return to the same line of work and a prior history can restore the income. Expect questions.
• Re-verification. The lender checks your employment again close to the Note date. A job change in between can reopen the file.

Starting income from a new job can count, but it needs documentation and usually a prior history in the same line of work. Say so up front.

How Does the Lender Count Your Debts?

The lender counts the proposed mortgage payment plus every recurring monthly obligation on the credit report and in the file. Groceries, utilities, phone bills and insurance for your car are normally not entered as debts. Credit cards, car loans, student loans, personal loans, child support, alimony and co-signed debts are.

Which payment number goes in depends on the debt:

Student loans: the one that surprises people

A deferred student loan still counts. Under Mortgagee Letter 2021-13, FHA changed how it handles loans that show a zero payment on the credit report. The old rule used 2% of the outstanding balance. For case numbers assigned on or after August 16, 2021, the replacement is 0.5% of the outstanding balance when the credit report shows no payment. If you have a documented actual payment above zero, that payment is used instead. The loan can come out of the ratio if it is documented as forgiven, canceled, discharged or paid in full.

This is a common reason a buyer who “has no student payment” sees a ratio that looks higher than expected.

Collections and charge-offs

FHA does not require collection accounts to be paid off. That is the headline. The catch comes from Mortgagee Letter 2013-24: when the total balance of all collection accounts for all borrowers reaches $2,000 or more, the lender must perform a capacity analysis. In practice, that means the lender counts a monthly figure, either a percentage of the balance or a documented payment plan, and adds it to your debts.

Two related points from the same letter:

• Disputed accounts are not captured in the automated credit score, so the lender has to consider them in the underwriting analysis.
• In a community property state, collections belonging to a non-purchasing spouse can be included in the combined balance, unless state law excludes them.

What about installment debts close to payoff?

Practices vary by lender, so ask before you assume a nearly finished car loan drops out. If the remaining payments are few and documented, some files treat it differently. Do not count on it.

What Goes Into the Proposed Housing Payment?

The housing payment is the full monthly cost of owning the home, not just principal and interest. It includes loan principal and interest, property taxes, homeowners insurance, mortgage insurance, and HOA dues where they apply.

Mortgage insurance is a program fact on FHA loans. Across the programs the network places, there is an upfront premium of 1.75% of the base loan, which is financed into the loan, plus an annual premium that runs between 0.15% and 0.75% of the balance, depending on term, loan amount and LTV. On a thirty-year loan above 90% LTV, the annual premium lasts for the term. At or below 90% LTV, it ends after eleven years. Both pieces feed the housing ratio, so a higher-LTV file carries a heavier payment than the same price at lower leverage. Final terms depend on the lender’s guidelines, the property type, and the borrower’s complete credit picture.

For a first-time buyer, one comparison does more than any calculator. Put today’s rent next to the proposed total payment. The gap is the payment increase. A modest increase can work as a compensating factor. A big jump pulls the ratio up and can pull the file toward manual review.

Taxes and insurance vary by county and by property, so use the actual quotes, not a guess. A stale insurance quote is a common reason a ratio shifts late in the file.

A Worked Example (In Ratios, Not Dollars)

Picture a first-time buyer with two earners on salary and one co-borrower. The mechanics run in this order:

1. Gather gross monthly income. Add base pay for each borrower, then any overtime or bonus the history supports. This is the denominator.

2. Pull the credit-report debts. List each card minimum, the auto loan, and the student loans. Use the placeholder for any deferred loan.

3. Build the proposed housing payment. Principal, interest, taxes, insurance, mortgage insurance and any HOA dues.

4. Compute the housing ratio. Housing payment ÷ gross monthly income.

5. Compute the total-debt ratio. Housing payment plus all other debts ÷ gross monthly income.

6. Compare to the limits. Check against the base 31/43 pair first. If either ratio runs over, the file needs documented compensating factors or a favorable automated finding.

Now run a “what if.” Say the total-debt ratio lands a few points above 43. The buyer pays off a credit card and a small car loan. Two debts leave the numerator. The ratio drops, and the file may fit the base pair with no extra factors. Paying a debt off before applying can do more for the file than saving the same cash for a bigger down payment, though not always. The tradeoff is the 3.5% minimum investment, which still has to be there.

This is why a pre-application review matters. Move the numbers on paper first.

Manual Review, Automated Review and Compensating Factors

Most files get an automated finding. FHA’s TOTAL Scorecard returns either Accept or Refer. According to HUD’s TOTAL page, the lender cannot accept or deny a loan based solely on that assessment. A Refer means a Direct Endorsement underwriter has to underwrite the loan by hand. It is not a denial. It means more documents and often more conditions.

Even on an Accept, the lender still verifies the information used to score the loan, and the underwriter still reviews the appraisal to FHA standards.

Compensating factors are strengths you can document. Typical examples include meaningful reserves after closing, a payment not much higher than current rent, strong credit, or income that exists but is not otherwise counted. The more factors you document, the higher the ratio the file can reach, up to the top tier of 40/50 across the programs described here. Everything stays subject to lender guidelines and full file review.

The Edge Cases Where the General Rule Breaks

• No borrower credit score. Under Mortgagee Letter 2026-11, qualifying ratios in this situation use only the income of borrowers who occupy the property and are obligated on the mortgage. A non-occupant co-borrower’s income cannot be used.
• Non-occupant co-borrower in general. A non-occupant co-borrower is allowed on the programs described here, but the rules limit how the income and debts combine. Ask before you assume the help carries over.
• Gifts. HUD’s glossary defines a gift as a contribution of cash or equity with no expectation of repayment. A gift can help with the minimum investment but does not add to income.
• Streamline refinances. The student loan treatment above does not apply to non-credit-qualifying streamlines, which do not evaluate the borrower’s debts. This matters later, not for a purchase.
• Multi-unit properties. A one-to-four-unit owner-occupied home can qualify, but rental income and reserve rules differ for two to four units. Check the details for your property.

One more change to know about. Mortgagee Letter 2026-11 adopts FICO 10T and VantageScore 4.0 alongside Classic FICO, for case numbers assigned on or after January 1, 2027. A tri-merge credit report is still required, and the minimum score thresholds do not change with the model. The wholesale programs Lendmire places FHA files with start at a 580 decision score for the 3.5% minimum investment.

What to Do in the Months Before You Apply

Changes to your profile affect the ratios. Here is a practical sequence:

Do:

• Pay down cards and small installment loans that push the total-debt ratio over the line.
• Keep the same job, or move within the same line of work if you can.
• Keep paperwork for every income source, including bonuses and overtime.
• Get a real insurance quote and a tax estimate for the home you want.
• Compare today’s rent to the proposed payment.

Don’t:

• Open new cards or finance a car. A new debt adds to the numerator.
• Move money between accounts without a paper trail.
• Switch from salary to commission or self-employment mid-file.
• Ignore collections or disputed accounts. Know the combined balance.

Tax treatment can depend on your situation; borrowers should speak with a qualified tax professional before relying on any deduction or credit.

Which Documents Support Which Number?

Missing documents are the usual cause of a file stalling. Gather them before you apply.

Why Does an Online Calculator Give a Different Answer?

Calculators use the numbers you type in. A lender uses the numbers it can verify. The gap usually comes from three places: income averaged lower than the figure you entered, a student loan counted at a placeholder instead of $0, and a collection or overlay the calculator did not know about. The lender’s figure is the one that counts.

If You’re Ready for a Next Step

If you are buying a home and want to see whether an FHA loan fits your file, Lendmire can help you compare the options and what each one asks of the file. For a look at how a different path stacks up, see Lendmire’s piece FHA Loan vs. Conventional for a First-Time Buyer on Income-Driven Plan.

For your own numbers, request a scenario review with Lendmire.

About Lendmire

Lendmire is a mortgage brokerage (NMLS# 2371349) licensed for consumer mortgage lending in 16 states, arranging FHA, VA, conventional and jumbo purchase and refinance loans through a wholesale lending network. Eligibility is determined by the lender on each file. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. CFPB defines debt-to-income

2. Mortgagee Letter 19-01

3. Handbook 4000.1

4. HUD Mortgagee Letter 2021-13

5. HUD Mortgagee Letter 2013-24

6. HUD TOTAL Scorecard

7. HUD Mortgagee Letter 2026-11

8. HUD Handbook 4000.1 Glossary (Update 15)