A low FHA mortgage rate can make a San Diego home more affordable, but the payment comparison needs to include the mortgage insurance that comes with that loan.
Start with the servicer’s current figures. Ask for the principal-and-interest payment, monthly mortgage insurance premium, escrow payment and any separate charges. Then verify how long the premium is scheduled to continue. The seller’s recollection, an online calculator and a new FHA loan’s advertised insurance rate can each describe something different from the mortgage you are buying into.
The useful question is: “What insurance obligation remains on this exact FHA case after the assumption?”
Three dates that do different jobs
The original closing date, FHA case-number assignment date and insurance-endorsement date are separate records. Your assumption closing will be another date. Do not substitute one for another.
For the principal duration rules discussed below, June 3, 2013 is a case-number assignment cutoff. For a loan subject to an 11-year MIP period, HUD’s FHA Connection guidance describes the final date as 11 years from insurance endorsement. That is why simply adding 11 years to the seller’s closing date can give the wrong answer. Ask the servicer for the actual endorsement date and recorded final monthly MIP payment date. HUD explains the final-payment fields here.
The premium rate also has its own history. For example, the 2023 reduction applied to covered mortgages endorsed for FHA insurance on or after March 20, 2023. That change is not a reason to replace an older loan’s billed premium with the rate advertised for a newly insured mortgage. Mortgagee Letter 2023-05 supplies the effective-date rule.
What controls how long monthly MIP continues?
For FHA case numbers assigned on or after June 3, 2013, the standard duration framework distinguishes the loan-to-value ratio at origination:
- At 90% or less, the annual MIP period is generally 11 years.
- Above 90%, annual MIP generally continues for the mortgage term.
HUD’s 2013 policy letter sets out the applicable term/LTV categories. Use the original loan facts and the servicer’s insurance record to determine which category governs; today’s purchase price or equity is not the original LTV.
HUD’s current Handbook 4000.1, last revised August 12, 2026, carries the same duration framework in Appendix 1.0.
Eligible older cases have a different framework. HUD describes monthly-premium cancellation for qualifying cases assigned before June 3, 2013 and closed after December 31, 2000, including a 78% balance threshold and applicable minimum-duration requirements. For terms over 15 years, the described minimum is five years from the start of amortization. This is not a universal rule for every older FHA product. Have the servicer verify eligibility and the correct final billing date under the applicable cancellation requirements.
For an assumption, work from the existing FHA case. HUD treats recording an assumption and changing or canceling MIP as distinct servicing functions in its Mortgage Record Changes guidance. Obtain confirmation of the continuing premium schedule rather than assuming that the ownership transfer starts a new 11-year period or ends the existing one.
Read the payment as separate pieces
Ask the servicer to identify each part of the current payment:
- Principal and interest: the scheduled payment on the existing loan, with its remaining term.
- Monthly MIP: the FHA insurance charge being collected and its next scheduled adjustment, if known.
- Escrow: taxes and homeowners insurance collected by the servicer, including any shortage repayment.
- Other housing costs: HOA dues, separate insurance, assessments and any approved second-loan payment.
Use purchase-specific tax and insurance estimates. The seller’s current escrow amount may not reflect your ownership costs, policy or future tax bill. If a shortage is being collected, ask how it will be handled at transfer so you do not treat a temporary catch-up amount as permanent—or leave a continuing obligation out.
For background on the broader financing structure, my FHA and VA assumable-mortgage guide explains what it means to take over an existing loan. This payment review adds the insurance detail needed to compare that opportunity with new financing.
A lower rate can still win—but measure the actual difference
Consider an illustrative comparison for the same property and loan balance:
- Assumed loan: $2,000 principal and interest, plus $300 monthly MIP.
- New-loan proposal: $2,700 principal and interest, with no mortgage insurance in this hypothetical proposal.
- Taxes and homeowners insurance: $950 per month under either option; no HOA charge or second loan in this example.
The assumption’s total is $3,250. The new loan’s total is $3,650. The monthly difference is $400, not the $700 difference between the principal-and-interest payments alone.
These figures are not a rate quote or an offer of financing. They show why leaving MIP out overstates the immediate payment advantage. Your comparison also needs the actual cash to close, fees, remaining loan terms and balances at your planned exit. A loan that ends sooner may build principal differently from a new 30-year loan.
Now add the insurance timeline. If the servicer confirms that the $300 premium ends within your expected ownership period, divide the comparison into the period before and after that confirmed endpoint. Do not assume the charge stays exactly $300 for every future year; use the servicer’s applicable schedule for the loan.
At Blum Realty Group, I can help bring those financing figures into the purchase discussion: the price, equity gap, cash you retain and the payment you can sustain. A clear breakdown is more useful than comparing two headline rates.
An endorsement-date example
Suppose a loan’s case number was assigned after June 3, 2013, its original LTV was 90% or less and the applicable record confirms an 11-year MIP period. The FHA insurance endorsement occurred in August 2018. A buyer plans to assume the loan in November 2026.
The relevant 11-year anniversary would fall in August 2029, not November 2037. The servicer must still confirm the actual final assessment month and billing treatment. The buyer should retain that written answer with the payment comparison rather than rely on a rounded “three years left” description.
Change one original fact—an LTV above 90%—and the duration analysis changes. A large payment to the seller in 2026 does not retroactively change that origination figure.
The insurance record to request
Ask the seller to authorize the necessary servicer communication. Request:
- FHA case number and applicable mortgage program.
- Case-number assignment, original closing and insurance-endorsement dates.
- Original loan amount, original LTV and amortization term.
- Current unpaid balance, note rate, scheduled principal-and-interest payment and remaining term.
- Current monthly MIP and the applicable premium schedule.
- Recorded final monthly MIP payment date, or confirmation that premiums continue for the remaining mortgage term.
- An explanation of any modification, payment adjustment or record correction affecting those figures.
Compare the response with the current statement and assumption package. If they disagree, ask the servicer to reconcile them before using the lower figure in your budget. A “premium” shown on a statement might instead be homeowners insurance; verify the label and recipient.
Questions buyers ask
Will paying a large equity gap eliminate FHA mortgage insurance?
Not by itself. Money paid to the seller is different from a principal reduction on the existing loan, and the applicable MIP rules depend on that loan’s original facts. Ask the servicer to identify the actual cancellation or end conditions before counting on a change.
Can I use today’s FHA MIP rate to estimate an older assumed loan?
Use the actual case’s premium instead. Effective dates and original loan characteristics matter. A new-loan quote is useful as an alternative financing comparison, not as a substitute for the assumed loan’s insurance record.
Is MIP the same thing as homeowners insurance?
No. FHA mortgage insurance protects the lender under the FHA program. Homeowners insurance addresses insured property risks under its policy. Both may be collected with the mortgage payment, but you need separate figures and coverage information.
Can refinancing remove the charge later?
A refinance that pays off the FHA loan replaces that loan and its costs with a different financing arrangement. Whether it makes sense depends on qualification, rate, fees, loan term and any insurance required on the replacement. Evaluate those terms when available rather than treating refinancing as a guaranteed future saving.
What if the seller cannot find the endorsement date?
Have the seller request the FHA case information and MIP schedule from the servicer, with appropriate authorization for the transaction team. Do not fill the gap with the deed date or the date on a listing description.