The FHA Loan Calculator computes your complete monthly payment for a Federal Housing Administration-insured mortgage — including principal, interest, upfront mortgage insurance premium (UFMIP), annual mortgage insurance premium (MIP), property taxes, and homeowners insurance. FHA loans are originated by approved private lenders but insured by the U.S. government through HUD, which allows lenders to offer more lenient qualification standards than conventional loans.

FHA loans are the most common path to homeownership for first-time buyers and borrowers with credit scores in the 580–679 range. According to HUD's Office of Single Family Housing, FHA-insured mortgages represented approximately 15–17% of all purchase originations in recent years, with a median borrower credit score of 672 and a median down payment of 3.5%.

Key FHA parameters for 2025:

• Loan limits: $524,225 floor (most low-cost counties) to $1,209,750 ceiling (high-cost areas like San Francisco, NYC, and Hawaii), per HUD Mortgagee Letter 2024-312. Alaska, Hawaii, Guam, and the U.S. Virgin Islands have higher ceilings.
• Minimum down payment: 3.5% with a credit score ≥580; 10% with a score of 500–579. Scores below 500 are ineligible.
• Upfront MIP (UFMIP): 1.75% of the base loan amount, typically financed into the loan.
• Annual MIP: 0.55% of the loan balance per year for loans ≤$726,200 with terms >15 years and LTV >90% (the most common scenario). Divided by 12 and added to each monthly payment.
• MIP duration: For down payments below 10%, MIP lasts for the life of the loan. With ≥10% down, MIP cancels after 11 years.

The CFPB's mortgage guide notes that FHA's mandatory lifetime MIP for low-down-payment borrowers is a key hidden cost that can make FHA loans more expensive than PMI-backed conventional loans once a borrower's equity surpasses 20% — a critical comparison point this calculator enables.

The FHA monthly payment has three distinct insurance layers in addition to the standard amortization formula. Understanding each layer is essential for accurate budgeting and comparison with conventional alternatives.

Worked Example: First-time buyer purchasing a $320,000 home with 3.5% down in Phoenix, AZ (2025 FHA limit for Maricopa County: $524,225 — comfortably within limit).

MIP rates vary by loan term, LTV, and loan amount. The HUD MIP rate schedule shows lower MIP rates for shorter terms (15-year loans) and for borrowers putting 10% or more down. A 15-year FHA loan with LTV ≤90% carries an annual MIP of just 0.15%, versus 0.55% for the standard 30-year / >90% LTV case — potentially saving hundreds per month.

Follow these steps using a specific scenario: a borrower with a 640 credit score purchasing a $380,000 home using an FHA loan in Chicago, Illinois.

1. Enter the purchase price and down payment percentage.
   Purchase price: $380,000. FHA minimum down payment: 3.5% → $13,300. Confirm the loan amount ($366,700) falls under the 2025 FHA limit for Cook County ($524,225). If your loan amount exceeds the county limit, you will need a jumbo loan — FHA cannot be used.
2. Enter your interest rate.
   FHA rates generally run 0.25–0.50% below conventional rates for borrowers with similar profiles, because the government insurance reduces lender risk. A 640 credit-score borrower might obtain 6.85% on an FHA loan vs. 7.25% on a conventional loan. Use the rate quoted on your Loan Estimate from an FHA-approved lender.
3. Select loan term.
   FHA offers 15-year and 30-year terms. The 30-year is most common (lower monthly payment); the 15-year carries dramatically lower MIP (0.15% vs. 0.55%) and far less total interest. For the 30-year at 6.85%: P&I on $373,114 (including financed UFMIP of $6,414) = $2,452/month.
4. Review the UFMIP calculation.
   The calculator automatically adds 1.75% of the base loan ($366,700 × 1.75% = $6,417) to the financed amount. You may also pay UFMIP at closing to avoid a slightly higher loan balance. Most borrowers finance it.
5. Check monthly MIP.
   $366,700 × 0.55% ÷ 12 = $168/month. This amount appears separately in the payment breakdown and continues for the life of the loan (since down payment <10%).
6. Enter property tax and insurance.
   Illinois has a relatively high effective property tax rate (~2.05%). At $380,000: $7,790/year → $649/month in taxes. Insurance: $1,400/year → $117/month. These amounts are typically escrowed.
7. Observe total PITI + MIP.
   P&I: $2,452 + MIP: $168 + Tax: $649 + Insurance: $117 = $3,386/month. Standard FHA debt-to-income (DTI) guidelines allow a housing ratio up to 31% and total DTI up to 43% (with compensating factors potentially allowing up to 57%). To qualify at $3,386 housing cost at 31% front-end DTI, the borrower needs a gross monthly income of at least $10,923 ($131,076/year).
8. Compare to conventional loan alternative.
   Toggle the conventional comparison: 5% down on $380,000 = $19,000 down, $361,000 loan at 7.25% = $2,465 P&I + PMI ~$200/month (0.66% on $361K) = $2,665 before tax/insurance. The FHA option's lower P&I + MIP ($2,620) is competitive, but the conventional PMI cancels at 80% LTV (~year 9), while FHA MIP is permanent. Total 30-year interest + insurance cost comparison favors the conventional loan for long-term holders.

The FHA calculator produces outputs that go beyond a simple payment number. Here is what each result means in practice:

Total Monthly PITI + MIP: Your full escrow-inclusive payment, representing the true monthly housing cost. Lenders verify this against your gross income for the front-end DTI (FHA guideline: 31%). Exceeding this threshold without compensating factors (substantial reserves, high credit score, residual income) may disqualify you from the loan.

Total MIP Paid Over Loan Life: One of the most revealing FHA-specific outputs. On a $308,800 base loan at 0.55% annual MIP over 30 years, total MIP payments reach approximately $49,000 — a substantial cost invisible in the initial payment. This figure strengthens the case for eliminating MIP by refinancing to a conventional loan once your equity reaches 20%.

FHA vs. Conventional Comparison: The calculator shows the total 30-year cost of FHA (with permanent MIP) versus a conventional alternative (with cancellable PMI). In most scenarios, FHA is advantageous in years 1–8; the conventional loan becomes less expensive in total cost from year 9 onward, once PMI cancels. The crossover point varies with the PMI rate, MIP rate, and how quickly the loan amortizes.

Loan-to-Value (LTV) Progression: Tracks when your LTV will reach 78% — a threshold irrelevant for lifetime-MIP FHA loans with <10% down but relevant for planning a conventional refinance. Per the HUD MIP cancellation guidelines, FHA MIP on loans originated after June 2013 with less than 10% down is permanent and cannot be cancelled through equity accumulation — refinancing is the only exit.

Break-Even on 10% vs. 3.5% Down: Putting 10% down on an FHA loan reduces the loan size, lowers monthly MIP slightly, and — crucially — allows MIP to cancel after 11 years rather than lasting forever. For a $320,000 purchase, the additional $20,800 in upfront down payment (going from 3.5% to 10%) saves roughly $142/month after year 11 in perpetuity. The break-even on the extra $20,800 cash invested (versus that cash in a 7%-returning portfolio) is approximately 14 years — a borderline case that depends heavily on your opportunity cost of capital, per guidance from the CFPB's mortgage comparison tool.

• Plan your exit from MIP from day one. FHA's lifetime MIP for <10% down borrowers adds $100–$200/month in perpetuity. Build a refinance plan: once your home's value grows and your principal payments push LTV below 80%, a conventional refinance eliminates MIP entirely. In a flat-appreciation market at 3.5% down, this crossover typically occurs 8–11 years after origination. Accelerate it with extra principal payments.
• Shop multiple FHA-approved lenders. FHA sets the insurance rules, but each approved lender sets their own interest rate, margin, and "lender overlays" (minimum credit score requirements above FHA's 580 floor). A HUD-approved lender search reveals hundreds of options in any metro area. Rate shopping across 3–5 lenders on a $300,000 FHA loan can save $50–$100/month in interest alone.
• Consider a 15-year FHA loan if your budget allows. The 15-year FHA MIP rate is just 0.15% (versus 0.55% for 30-year). On a $300,000 base loan, that's $37/month versus $138/month — a $101/month saving on MIP alone. The 15-year also builds equity significantly faster. If the higher monthly P&I is manageable, the 15-year FHA can be dramatically cheaper in total cost.
• Use gift funds for your down payment. FHA explicitly allows the entire 3.5% minimum down payment to come from a qualified gift from a family member or nonprofit, per HUD guidelines. Gift funds must be documented with a gift letter, proof of transfer, and proof of donor's ability to give. This makes FHA accessible to borrowers with excellent income but limited savings.
• Avoid exceeding the FHA debt-to-income ceiling without compensating factors. FHA's standard maximum back-end DTI is 43%. Borrowers between 43% and 57% DTI may still qualify with compensating factors: a credit score ≥680, at least 3 months of mortgage payment reserves, or minimal payment shock (new payment is less than 5% higher than prior housing cost). Pushing beyond these limits without documented compensating factors results in automatic underwriting denial.
• Combine FHA with state down payment assistance (DPA) programs. FHA loans are explicitly compatible with most state HFA bond programs and down payment assistance grants. Programs such as CalHFA, IHDA (Illinois), and NCHFA (North Carolina) can cover the 3.5% down payment and part of closing costs, reducing out-of-pocket to near zero. Search your state's housing finance agency for current offerings.