Deciding between a conventional loan and an FHA loan (Federal Housing Administration loan) is a common dilemma for aspiring homeowners. There’s no single “better” option; the ideal choice depends on your individual financial circumstances, including your credit score, down payment capabilities, and debt-to-income ratio.
Important Note for UK Readers: It’s crucial to understand that FHA loans are a specific US government-backed mortgage program and are not directly available in the United Kingdom. While the principles of comparing different loan types (e.g., lower down payment vs. better credit requirements, fixed vs. adjustable rates, mortgage insurance implications) are universally applicable, the exact products and government schemes differ. In the UK, the closest equivalent to a government-backed scheme for lower deposits has been the Mortgage Guarantee Scheme, which aims to encourage lenders to offer 95% LTV mortgages.1 This scheme was originally set to end in June 2025 but has been made permanent from July 2025.
However, the following comparison highlights the general considerations that apply when choosing between a standard (conventional) mortgage and a government-backed scheme designed to assist borrowers with less perfect financial profiles.
Conventional Loan vs. FHA Loan: What’s Better?
There’s no one-size-fits-all mortgage. When deciding between a conventional loan vs FHA loan (or their UK equivalents), you’ll have to compare costs and benefits based on your personal finances.
Generally, a conventional loan is often better if you have good or excellent credit because your mortgage rate and any associated mortgage insurance costs will typically be lower.2 However, an FHA loan (or a similar government-backed low-deposit scheme in the UK) can be perfect if your credit score is in the higher 500s or low 600s. For borrowers with lower credit, the FHA option is often the more accessible and potentially cheaper route.3
These are only general guidelines, though. The choice between a conventional vs FHA loan (or UK equivalents) might be different for you. So be sure to look closely at both loan types and choose the best one for your financial situation.
FHA vs. Conventional Comparison Chart (US Context)
While FHA loans aren’t available in the UK, this chart provides a useful comparison of the typical differences for a US audience, which can inform UK borrowers about the types of trade-offs that exist between different mortgage products.
| Feature | Conventional 97 Loan (US) | FHA Loan (US) |
| Minimum Down Payment | 3% | 3.5% (with 580+ credit) |
| Minimum Credit Score | 620 | 580 (with 3.5% down) |
| Maximum Debt-to-Income Ratio | 43% (typically) | 50% (in some cases) |
| Loan Limit for 2025 (in most areas) | $806,500 | $524,225 |
| Income Limit | No income limit | No income limit |
| Mortgage Insurance | Annual fee (PMI) | Annual and upfront fee (MIP) |
Key Comparison Points
Down Payments
Your down payment significantly influences the choice between a conventional loan (or a standard UK mortgage) and an FHA loan (or a UK low-deposit scheme).
- FHA loans (US): Require a minimum down payment of 3.5% with a 580+ credit score, or 10% with a score between 500-579.4
- Conventional 97 loans (US): Require a minimum down payment of just 3%.5
- UK Context: In the UK, standard conventional mortgages might require 5%-20% down. Schemes like the Mortgage Guarantee Scheme (permanent from July 2025) aim to support 95% LTV mortgages, meaning a 5% deposit.6
A key difference is that all FHA borrowers must pay mortgage insurance, regardless of down payment, whereas conventional loans only require Private Mortgage Insurance (PMI) if the down payment is less than 20%.7
Interest Rates
At first glance, FHA loan interest rates often appear lower than those for conventional loans.8 However, these numbers don’t tell the full story. Rates vary based on your financial profile, broader economic factors (like Bank of England policies in the UK), and whether you opt for a fixed-rate or adjustable-rate mortgage. A personalized rate quote is always the best way to determine your true rate.
- FHA loan interest rates (US): Typically lower and more stable, especially for borrowers with moderate credit, as government backing reduces lender risk.9
- Conventional loan interest rates: Vary based on credit score and loan-to-value (LTV) ratio.10 Borrowers with strong credit generally secure the best rates, while higher-risk applicants pay more.11
Credit Scores
Your credit score is critical for eligibility and influences your monthly mortgage payments. A higher score generally leads to better mortgage rates and more loan options.12
- FHA loans (US): Require a 580 credit score with 3.5% down, or 500-579 with 10% down.13
- Conventional loans (US/UK): Typically require a 620 credit score or better.14
- UK Context: While there isn’t an “FHA loan” in the UK, lenders offer varying flexibility for credit scores. Generally, a higher credit score will always unlock better rates and more favourable terms from UK lenders. If your credit score is below the conventional threshold, options might include seeking specialist lenders or specific government schemes (like the Mortgage Guarantee Scheme, though it also has standard affordability checks).
If your credit score is between 500 and 620 (US context), an FHA loan is likely the only type of mortgage you qualify for. But if your score is above 620, it’s worth exploring a conventional loan with a lower down payment.
Debt-to-Income Ratio (DTI)
Your DTI ratio compares your monthly debt payments to your gross income, helping lenders assess your ability to afford the new mortgage.15
- FHA loans (US): Allow for a higher DTI—up to 50% in some cases.16
- Conventional loans (US/UK): Typically cap DTI ratios at around 43%, meaning monthly debts generally shouldn’t exceed 43% of your income.
- UK Context: UK lenders also use DTI or similar affordability assessments.17 While specific caps vary by lender, a lower DTI generally indicates lower risk and can lead to better loan offers.18
Mortgage Insurance
Both FHA and conventional loans often involve mortgage insurance, but the costs and duration vary.
| Feature | Conventional Loans (US) | FHA Loans (US) |
| Mortgage Insurance Type | Private Mortgage Insurance (PMI) | Mortgage Insurance Premium (MIP) |
| Upfront Premium | N/A | 1.75% of loan amount |
| Annual Rate | Up to 2.25% of loan amount | 0.55% of loan amount |
| Duration | Until loan reaches 80% LTV | 11 years (10%+ down) OR life of loan (3.5%-10% down) |
- Conventional Loans (PMI): You only pay PMI when you put less than 20% down, and it’s typically cancellable once you reach 20% home equity (80% LTV).19
- FHA Loans (MIP): In the US, FHA loans require both an upfront MIP (1.75%) and an annual MIP (0.55%).20 The annual MIP may last for 11 years or the entire loan term, depending on your down payment size.21
The cheaper mortgage insurance option depends on your financial situation and how quickly you build equity. For borrowers with good credit, conventional loans can be more cost-effective over time because PMI can be cancelled.22
Loan Limits
Both FHA and conventional loans have limits on the maximum amount you can borrow.
- FHA loan limits (US): For a single-family home, the limit is $524,225 in most of the U.S. in 2025.
- Conventional loan limits (US): For a single-family home, the limit is $806,500 in 2025.23
- UK Context: UK mortgages have varying maximum loan amounts based on individual lender criteria, income multiples, and property value. There isn’t a direct equivalent to the US-wide FHA/conventional loan limits, though “Jumbo” mortgages exist for higher-value properties.
Any loan amount exceeding these limits is considered a non-conforming loan or jumbo loan.
Home Appraisals
One notable difference between FHA loans and conventional loans in the US is the appraisal process.
- FHA appraisals (US): Follow stricter guidelines. Appraisers not only determine market value but also assess the home’s safety, security, and overall condition to meet FHA requirements.24
- Conventional appraisals: Lenders require an appraisal to confirm the home’s market value.25 Some buyers may qualify for hybrid appraisals or property inspection waivers, which can make the process faster and more flexible.
Due to the more stringent requirements of FHA appraisals, sellers in competitive US markets might sometimes prefer offers backed by conventional loans, as issues found during an FHA appraisal could delay or even derail a sale.
Alternative Low-Down-Payment Loan Programs (US Focus)
If you’re still weighing options for a low-down-payment mortgage, there are other choices available, primarily in the US:
- Fannie Mae HomeReady: Offers competitive interest rates, reduced PMI costs, and allows household income to qualify.26 It has income limits, loan maximums, and requires a FICO score of 620+ and DTI of 50% or less.
- Freddie Mac Home Possible: Similar to HomeReady, with income and loan limits.27 Requires a minimum credit score of 660, 3% down payment, and DTI below 43%. Offers flexible approval requirements for low-income families.
- VA loan: Requires no down payment, offers flexible credit score minimums, and below-market rates.28 No maximum loan amounts. Available only to eligible US service members and veterans.
- USDA loan: A rural housing government-backed loan requiring no down payment and no maximum home purchase price.29 Has property standards (must be in a rural area), income limits, and carries mortgage insurance for the entire loan term.
In the UK, the primary “alternative” for low down payments is the Mortgage Guarantee Scheme, which encourages lenders to offer 95% LTV mortgages.30 Other options might include Shared Ownership (buying a share of a property and paying rent on the rest) or Guarantor Mortgages (where a family member or friend provides a guarantee for the loan).
For most first-time homebuyers, especially in the US, the decision often boils down to a conventional 97 loan vs. FHA, as other government-backed options have specific eligibility criteria (military service for VA, rural location and income limits for USDA, income limits for HomeReady/Home Possible).31