What Does LOI Blasting Cost? A Per-Deal Breakdown
Updated June 17, 2026
LOI blasting costs cents per offer in sending, plus list and software costs, which works out to a low cost per deal even at 500-2,000 offers per closed deal. At a few cents an offer, a deal that takes 1,250 LOIs costs tens of dollars in send cost — a fraction of cold calling's labor cost or direct mail's dollar-per-piece spend. The real cost driver is wasted volume from poor pricing and dropped follow-up, not the per-send price.
Investors evaluating LOI blasting usually ask the wrong cost question. They want a per-offer price, but the number that matters is cost per deal — and that depends far more on how tight your funnel is than on what you pay per send. A cheap offer that never converts is expensive; a slightly pricier system that converts well is cheap.
Here's the actual cost stack, the per-deal math at realistic conversion rates, and why the biggest cost in LOI blasting is almost never the line item investors fixate on.
The cost stack: what you actually pay for
LOI blasting has three cost components. First, the data — pulling and filtering listed properties, which ranges from cheap to free depending on source. Second, the sending — digital offers cost a small fraction of a physical mail piece, measured in cents per send rather than dollars. Third, the software that runs the list, sends at volume, and automates follow-up, typically a flat monthly cost.
Compared to the alternatives, the per-action cost is low. Cold calling's main cost is labor — hours of dialing per contact reached. Direct mail's main cost is the physical piece at roughly a dollar or more all-in. LOI blasting front-loads a flat software cost and then sends at near-zero marginal cost, which is exactly what makes its high-volume math affordable.
| Channel | Cost per attempt | Main cost driver | Relative cost per deal |
|---|---|---|---|
| LOI blasting | Cents | Flat software + data | Lowest |
| Direct mail | ~$1+ | Printing + postage | High |
| Cold calling | Labor time | Hours dialing | High (labor) |
| Paid ads | Per click / lead | Auction CPC | Variable |
Cost-per-deal comparison at realistic conversion rates
The per-deal math
Run the numbers. At an average funnel — roughly 1,250 offers per closed deal — and a send cost of a few cents per offer, the raw sending cost of a deal is in the tens of dollars, not hundreds. Add a flat monthly software cost spread across however many deals you close, and the cost per deal stays low relative to a wholesale or flip margin measured in thousands.
The leverage is that two of the three costs are flat or near-zero at the margin. Once the software and data are paid for, sending the next thousand offers costs almost nothing — so your cost per deal falls as volume rises, the opposite of labor-bound channels like cold calling where every additional attempt costs another increment of someone's time.
The real cost is wasted volume, not the per-send price
Here's the trap: investors optimize the cheapest line item (per-send cost) and ignore the expensive one (wasted offers). A campaign that sends 1,250 offers with blanket lowball pricing and no follow-up might close zero deals — so its true cost per deal is infinite, regardless of how cheap each send was. The same 1,250 offers, comped realistically and followed up, might close a deal. The send cost is identical; the cost per deal is the difference between infinity and tens of dollars.
That's why pricing realism and follow-up are cost decisions, not just conversion decisions. BILT CRM keeps the per-deal cost low not by shaving pennies off each send but by making sure the volume you pay to send actually converts — comping each offer to the listing and automating the follow-up so no reply is wasted. The cheapest LOI campaign is the one where the fewest offers go to waste.
Frequently asked
How much does it cost to send one LOI?
A digital LOI costs cents per send — a small fraction of a direct mail piece, which runs about a dollar or more all-in. On top of the per-send cost you have data (cheap to free depending on source) and a flat monthly software cost, but the marginal cost of sending one more offer is near zero.
What is the cost per deal for LOI blasting?
At an average funnel of roughly 1,250 offers per deal and a few cents per send, the raw send cost of a deal is in the tens of dollars, plus a share of flat software cost. Against a wholesale or flip margin measured in thousands, that's a low cost per deal — and it falls as volume rises.
Is LOI blasting cheaper than cold calling?
On a cost-per-deal basis, generally yes, because cold calling's main cost is labor — hours of dialing per contact reached — while LOI blasting sends at near-zero marginal cost once software and data are paid for. Cold calling's cost scales with every attempt; LOI blasting's flattens as you send more.
What's the biggest hidden cost in LOI blasting?
Wasted volume. Offers sent with blanket lowball pricing and no follow-up may close zero deals, making the true cost per deal infinite no matter how cheap each send was. The real cost driver isn't the per-send price — it's whether the volume you pay to send actually converts.
The takeaway
LOI blasting costs cents per offer, plus flat data and software costs, which makes the cost per deal low — tens of dollars in send cost at an average 1,250-offers-per-deal funnel, against margins measured in thousands. Two of the three costs are flat at the margin, so cost per deal falls as volume rises. But the real cost is wasted volume from poor pricing and dropped follow-up. Convert the offers you pay to send, and the per-deal cost stays the lowest of any channel.