The self-sufficiency test kills a $640k fourplex renting for $4,600

I ran into the same wall on a $520k triplex and the answer I got was appraiser's market rent, not my leases. Which cut both ways, because the appraiser came back above the in-place rents and it still failed. The test scales with price and your rents are $1,150 on a $160k-per-door basis. There isn't a rent number that saves a building priced like that.

I build these, so my first reaction is that $640k for four two-bedrooms in decent shape isn't crazy pricing, it's just pricing that assumes an investor with 25 percent down. The low down payment program is doing something specific, financing an owner-occupant into a building whose rents carry it. Your rents don't carry it at 3.5 percent down and no amount of structuring changes the arithmetic. What I'd check is whether the two-bedrooms are actually two-bedrooms by code, because I've seen fourplexes where one unit's second bedroom has no egress window and the appraiser drops it to a one-bed with a lower market rent.

Duplexes are exempt from that test as far as I've been taught, so a $450k duplex with $1,400 rents is a completely different conversation than this. Worth reframing the search.

Seller carry doesn't fix it. Any second lien behind a government-backed first has to be disclosed and approved, and the payment on it typically lands in your qualifying ratios anyway, so you've made the test worse. The version I've seen work is a bigger down payment on a conventional owner-occupied multifamily product, where the self-sufficiency test doesn't apply, at the cost of needing real money at the table. Your $22k turns into something a lot larger and the whole appeal disappears.

The test uses the appraiser's estimate of market rent from the rent schedule, not your leases, and all units count on the rent side including the one you'll live in. So your $4,600 becomes whatever the appraiser writes, times 0.75, versus the full monthly payment including taxes, insurance, HOA if any, and the monthly mortgage insurance premium. Programs and factors change, so have your loan officer put the exact test she ran, with the appraiser's rent figures and her PITI build, in writing.

Your arithmetic is the right shape and the gap is structural. At $160k per door with $1,150 rents you're at roughly 0.72 percent monthly rent to price. The government-backed 3-4 unit test broadly needs something closer to 1 percent before mortgage insurance, and higher when taxes run $7,200. Nothing in the deal's structure moves a 30 percent shortfall.

What @quarry said about the second lien is the key trap. People try to shrink the first lien with seller carry, and both the disclosure requirement and the payment landing in your ratios push the file backwards.

The real question is whether you want this building at all. Strip out the low down payment idea and price it as an investment purchase: 25 percent down on $640k, $4,600 gross, and take out vacancy at 6 percent, maintenance and capital reserves at maybe 12 to 15 combined on a building this age, taxes and insurance at your numbers. Run that and see what's left against the debt service at investor pricing. If the answer is thin, the test is telling you something true about the price rather than blocking you from a good deal. Duplexes sidestep the test entirely, which is why owner-occupant buyers who want leverage over rents end up there.

@rena-expert the 0.72 percent framing is the most useful thing I've read on this. Is there a quick screen version? Something like gross monthly rent divided by price, and if it's under 0.9 don't bother calling a lender about a fourplex.

Wait, the unit you live in counts as rent even though nobody's paying it? That seems backwards.

@rigging it does count, and the logic is about the building rather than about you. The program is asking whether this property, fully rented at market, produces enough to carry its own payment. Your occupancy is treated as temporary. If the building can't support itself with all four units rented, the lender's view is that it's a weak loan the moment you move out.

That's also why duplexes are treated differently. With two units the program accepts that one rent plus your own income is the plan, so it leans on your qualifying ratios instead of a property test.

@ember a rent-to-price screen is a reasonable first filter and every experienced buyer uses some version of it. Just know what it hides. Two buildings at the same 0.9 percent are very different if one has a $7,200 tax bill and the other $3,000, or if one has owner-paid heat. The self-sufficiency test includes taxes and insurance, so a high-tax jurisdiction fails at a rent ratio that passes elsewhere. Use the ratio to decide which buildings to underwrite, then underwrite them properly with the actual tax bill and an insurance quote before you order an appraisal you can't get back.