Estimate FHA mortgage P&I, property taxes, insurance, monthly MIP, UFMIP, total PITI, amortization, DTI, 203(k) financing and FHA vs. Conventional scenarios.
| Period | Beginning Balance | Payment (P&I + MIP) | Principal | Interest | Annual MIP | Ending Balance |
|---|---|---|---|---|---|---|
| Year 1 | $343,661 | $27,926 | $3,841 | $22,225 | $1,860 | $339,820 |
| Year 2 | $339,820 | $27,926 | $4,098 | $21,968 | $1,860 | $335,721 |
| Year 3 | $335,721 | $27,926 | $4,373 | $21,693 | $1,860 | $331,348 |
| Year 4 | $331,348 | $27,926 | $4,666 | $21,400 | $1,860 | $326,683 |
| Year 5 | $326,683 | $27,926 | $4,978 | $21,088 | $1,860 | $321,704 |
| Year 6 | $321,704 | $27,926 | $5,312 | $20,754 | $1,860 | $316,393 |
| Year 7 | $316,393 | $27,926 | $5,667 | $20,399 | $1,860 | $310,725 |
| Year 8 | $310,725 | $27,926 | $6,047 | $20,019 | $1,860 | $304,678 |
| Year 9 | $304,678 | $27,926 | $6,452 | $19,614 | $1,860 | $298,227 |
| Year 10 | $298,227 | $27,926 | $6,884 | $19,182 | $1,860 | $291,342 |
| Year 11 | $291,342 | $27,926 | $7,345 | $18,721 | $1,860 | $283,997 |
| Year 12 | $283,997 | $27,926 | $7,837 | $18,229 | $1,860 | $276,160 |
| Year 13 | $276,160 | $27,926 | $8,362 | $17,704 | $1,860 | $267,799 |
| Year 14 | $267,799 | $27,926 | $8,922 | $17,144 | $1,860 | $258,877 |
| Year 15 | $258,877 | $27,926 | $9,519 | $16,547 | $1,860 | $249,357 |
| Year 16 | $249,357 | $27,926 | $10,157 | $15,909 | $1,860 | $239,201 |
| Year 17 | $239,201 | $27,926 | $10,837 | $15,229 | $1,860 | $228,364 |
| Year 18 | $228,364 | $27,926 | $11,563 | $14,503 | $1,860 | $216,801 |
| Year 19 | $216,801 | $27,926 | $12,337 | $13,729 | $1,860 | $204,463 |
| Year 20 | $204,463 | $27,926 | $13,164 | $12,903 | $1,860 | $191,300 |
| Year 21 | $191,300 | $27,926 | $14,045 | $12,021 | $1,860 | $177,255 |
| Year 22 | $177,255 | $27,926 | $14,986 | $11,080 | $1,860 | $162,269 |
| Year 23 | $162,269 | $27,926 | $15,989 | $10,077 | $1,860 | $146,280 |
| Year 24 | $146,280 | $27,926 | $17,060 | $9,006 | $1,860 | $129,220 |
| Year 25 | $129,220 | $27,926 | $18,203 | $7,863 | $1,860 | $111,017 |
| Year 26 | $111,017 | $27,926 | $19,422 | $6,644 | $1,860 | $91,595 |
| Year 27 | $91,595 | $27,926 | $20,723 | $5,344 | $1,860 | $70,872 |
| Year 28 | $70,872 | $27,926 | $22,110 | $3,956 | $1,860 | $48,762 |
| Year 29 | $48,762 | $27,926 | $23,591 | $2,475 | $1,860 | $25,171 |
| Year 30 | $25,171 | $27,926 | $25,171 | $895 | $1,860 | $0 |
An FHA loan calculator estimates the monthly and long-term costs of an FHA-insured mortgage using the assumptions you enter. Instead of showing only principal and interest, the calculator can combine the mortgage payment with property taxes, homeowners insurance, monthly mortgage insurance premium (MIP), and HOA dues to produce a modeled total monthly PITI payment. It also separates base loan amount, upfront mortgage insurance premium (UFMIP), financed loan amount, and upfront cash so you can understand how the financing structure affects the payment.
The calculator is designed as a planning and education tool. It does not issue a mortgage, make a binding underwriting decision, or guarantee that a borrower will qualify for an FHA loan. Actual approval can depend on the complete application, lender overlays, credit history, debt obligations, documentation, property eligibility, loan limits, automated underwriting, and current FHA/HUD requirements.
Enter the target home purchase price.
Enter the planned down-payment percentage (e.g. 3.5%, 5%, 10%).
Select the credit-score band used by the calculator (580+ or 500-579).
Enter the mortgage interest rate and loan term in years.
Choose whether UFMIP is paid in cash at closing or financed into the mortgage.
Enter annual property taxes and annual homeowners hazard insurance.
Enter monthly HOA or condo association dues if applicable.
Review base loan amount, financed loan amount, P&I, monthly MIP, upfront cash and total PITI.
Inspect the annual or monthly amortization breakdown and export to CSV.
Compare FHA with the calculator's modeled Conventional 97 cost crossover.
Use the county-limit tool as a time-sensitive reference rather than an evergreen database.
Use the DTI checker, 203(k) renovation tool and extra-payment simulator for scenario analysis.
The home price is the starting point for almost every other calculation. Down payment is derived from the selected percentage, the base loan is the purchase price minus that down payment, and UFMIP and mortgage payments are then calculated from the loan structure.
The calculator models down payment as a percentage of the purchase price. Under the supplied reference scenario, 3.5% on a $350,000 purchase produces a $12,250 down payment and a $337,750 base loan.
The credit-score selector is used by the calculator's FHA logic to distinguish scenarios such as the 580+ band and the 500-579 band. The score band should be interpreted as a modeled eligibility context rather than a universal lender approval rule.
The interest rate and loan term determine the fixed-rate principal-and-interest payment. A lower interest rate generally lowers the modeled payment, while a longer term generally lowers the required periodic payment but extends the period over which interest accrues.
The base loan is calculated as the purchase price minus the down payment. For a $350,000 home with 3.5% down: $350,000 × 0.035 = $12,250 down payment; $350,000 - $12,250 = $337,750 base loan.
That base loan is the foundation for the calculator's UFMIP and annual-MIP calculations. It is important to distinguish the base loan from the total financed loan when UFMIP is rolled into the mortgage.
FHA UFMIP is modeled in the calculator at 1.75% of the base loan. The important practical choice is whether that UFMIP is paid at closing or financed into the mortgage. The reference material contains two different screenshots because those two states produce different principal balances and therefore different monthly P&I payments.
With a $337,750 base loan, 1.75% UFMIP is $5,910.63. If paid in cash, the financed loan remains $337,750. The validated example produces approximately $2,134.80 P&I and total monthly PITI of about $2,706.27, displayed around $2,707 after rounding. Upfront cash required is approximately $28,661.
If the $5,910.63 UFMIP is financed, the modeled loan becomes approximately $343,660.63. The validated example produces approximately $2,172.17 P&I and total PITI of about $2,743.64, displayed around $2,744. Upfront cash required drops to $22,750.
This is why the reference's $2,707 and $2,744 values are not a defect. They represent different UFMIP financing states. The production QA specifically reconciled the two modes.
Using the financed-UFMIP baseline, the components are approximately $2,172.17 P&I, $300 monthly property taxes, $116.67 monthly insurance, $154.80 monthly MIP, and $0 HOA. Together they produce approximately $2,743.64 per month.
This distinction matters because a mortgage payment is not necessarily the same as total housing cash outflow. Comparing only principal and interest can materially understate the monthly payment when taxes, insurance, MIP and HOA are part of the modeled obligation.
The calculator separates FHA mortgage insurance into UFMIP and the ongoing annual MIP. The reference formula calculates monthly MIP as the base loan multiplied by the selected annual MIP rate, divided by 12.
For the $337,750 base loan and a 0.55% annual MIP rate, the monthly result is approximately $154.80. The QA audit confirms that the production model uses the base loan for this calculation rather than accidentally applying the annual rate to the UFMIP-financed balance.
The supplied reference encodes different annual MIP rates and durations depending on loan term and down payment:
A major behavior to test is the 10% down-payment boundary. The calculator switches to the appropriate MIP rate and duration when the input crosses from below 10% down to 10% or more.
For example, the reference shows that a 30-year modeled FHA loan at 10% down uses a 0.50% annual MIP rate and an 11-year MIP duration, whereas a comparable loan below 10% down uses a 0.55% rate and a life-of-loan duration under the encoded assumptions.
The amortization schedule breaks the loan into beginning balance, payment, principal, interest, annual MIP and ending balance. The production regression gate verified the schedule against independent mathematical calculations and confirmed that the terminal balance reaches exactly $0.00 without overpayment.
The schedule is useful because it shows why mortgage payments do not remain economically identical over time. Interest is calculated from the outstanding balance, so the principal share generally changes as the balance falls. MIP duration is tracked separately according to the selected FHA assumptions.
The FHA DTI module in the validated implementation uses total modeled PITI rather than principal and interest alone for its front-end housing ratio. This explains a key reference anomaly: the example displays 36.6% Front / 44.6% Back with $7,500 gross monthly income and $600 of other monthly debt.
This is a mathematical model output, not an approval determination. The actual underwriting decision may depend on the full loan file and the applicable underwriting path.
The calculator includes a side-by-side FHA versus Conventional 97 comparison. The supplied example uses a borrower credit score of 700 and a conventional rate of 6.75%, then displays modeled FHA ($2,777) and conventional ($2,852) PITI values and a crossover month (Month 79).
The important SEO explanation is that this is a scenario comparison. FHA may have different mortgage-insurance and upfront-cost behavior, while a conventional loan can have different private-mortgage-insurance treatment, pricing and cancellation rules.
The reference includes an FHA county-limit verification tool and displays a 2024 single-family low-cost floor of $498,257 and high-cost ceiling of $1,149,825. The calculator then checks whether the proposed loan falls within the selected limit.
These values are explicitly year-specific in the supplied reference and should not be presented as evergreen current FHA limits. The production content labels this section as time-sensitive.
The 203(k) section models a renovation project by adding a contingency reserve to the repair budget and incorporating the resulting renovation escrow into the loan structure. For the validated reference example, the repair budget is $35,000 and the contingency is 15%, producing a $5,250 reserve and a $40,250 total renovation budget.
The validated scenario produces a total financed 203(k) loan of approximately $383,181.60 and a monthly payment of approximately $2,594.55, displayed around $2,595.
The extra-payment simulator shows what can happen when you pay more than the scheduled mortgage amount. In the reference scenario, an extra $150 per month produces a modeled $86,639 of interest and MIP savings, shortens the payoff time by 60 months, and reduces modeled MIP by $9,451.
The exact savings depend on the outstanding balance, rate, MIP duration and timing of the extra payments.
Upfront cash is different from the financed loan amount. In the validated 3.5% down example, cash UFMIP creates a substantially larger upfront requirement ($28,661) than financed UFMIP ($22,750), while financed UFMIP increases the mortgage balance instead.
The reference explains the calculator's credit-score bands: 580+ is associated with a 3.5% minimum down, while 500-579 is associated with a 10% minimum down. These are program-reference assumptions, not guaranteed approval outcomes.
The reference states a 6% seller-contribution ceiling and notes financing for up to 4 units under primary residency rules. These remain policy-sensitive educational context.
Approved Baseline Facts: $350,000 home, 3.5% down, 6.5% rate, 30 years, $3,600 taxes, $1,400 insurance. Base loan is $337,750. In cash-UFMIP mode, UFMIP is $5,910.63, P&I is $2,134.80, and total PITI is $2,706.27 (~$2,707). In financed-UFMIP mode, financed loan is $343,660.63, P&I is $2,172.17, and total PITI is $2,743.64 (~$2,744). The validated DTI example uses $7,500 income and $600 debt, yielding 36.6% front-end and 44.6% back-end DTI. The 203(k) example uses $35,000 repairs and 15% contingency, yielding $40,250 renovation budget and $383,181.60 total financed loan. These are scenario outputs, not universal FHA quotes or loan approvals.