Investing in storage units means buying REIT shares, joining a private deal, or buying, converting or building a facility. In 2026, national occupancy is forecast at 87 to 89 percent and one major forecast has asking rents still falling, so the deal depends on local numbers. Test yours in the calculator below.
Storage investment calculator
Enter a price, units, rent per square foot, occupancy, expenses, a management fee and loan terms. The tool shows net operating income, cap rate, debt coverage, cash on cash and the occupancy where cash flow hits zero. Most articles on this topic stop at "it can be profitable", so this one starts with your numbers.
Storage investment calculator
6.66% sits inside the published range of 5.0% to 8.0% for self storage (2025, Class A to Class C). A cap rate shows price against income, not whether a deal is safe or worth doing. Occupancy could fall 6.1 points before cash flow reaches zero.
Debt coverage as occupancy and rent move
| Rent / occupancy | 75% | 80% | 85% | 90% | 95% |
|---|---|---|---|---|---|
| -10% | 0.72x | 0.81x | 0.89x | 0.98x | 1.07x |
| -5% | 0.79x | 0.88x | 0.98x | 1.07x | 1.17x |
| As entered | 0.86x | 0.96x | 1.06x | 1.16x | 1.26x |
| +5% | 0.94x | 1.04x | 1.15x | 1.25x | 1.35x |
Pink cells have negative cash flow after the loan. Expenses stay fixed as rent and occupancy move, and the management fee moves with collected rent.
Runs in your browser. Nothing is stored or sent. Default rent is the $1.18 a square foot a month forecast from Marcus & Millichap, reported by CRE Daily. Occupancy is the middle of IRR's 87 to 89 percent range, and the fee is inside the 5 to 7 percent range in Inside Self-Storage. Price, units, expenses and loan terms are editable assumptions. Cash on cash uses the down payment alone. Cap rate source: IRR 2026 Self Storage Report. This compares numbers and is not investment advice.
Key takeaways
- You can own storage through public REIT shares, a private deal, or a facility you buy, convert or build. Control and work rise together.
- Marcus & Millichap put the average self storage cap rate at 6.59 percent, per CRE Daily. IRR's 2025 ranges ran from 5.00 percent for Class A to 8.00 percent for Class C.
- Break-even occupancy is the number to check. The default example reaches zero cash flow at about 81.9 percent.
- SBA pages bar passive investment in rental real estate, so ask an SBA lender about your exact structure before you plan around one.
| Route | What you own | Your work | Main risk |
|---|---|---|---|
| Public REIT shares | Stock in a storage company | Low | Share price moves with the stock market |
| Private deal or fund | A stake run by a sponsor | Low, after you vet the sponsor | Sponsor quality, fees and limited liquidity |
| Buy an existing facility | The property, at about $110 to $215 a sq ft in IRR's ranges | High, or a management fee | Paying for income that does not hold up |
| Convert a building | The property, plus a project | High | Zoning, conversion costs and lease-up |
| Build new | See build cost calculator | Highest | Lease-up in a market with new supply |
Is investing in storage units a good idea in 2026?
Storage can work as an investment, but 2026 is a slower market than the one many sales pitches describe. Occupancy is steady, rents are soft, and results depend on your trade area. This page gives you the numbers to test. It does not tell you what to buy.
The IRR 2026 Self Storage Reportsays values fell about 10 to 15 percent in the capital-market reset and that taxes and insurance pushed operating costs up. It expects rent growth of 1 to 3 percent. Marcus & Millichap is less upbeat on asking rents, forecasting a 0.8 percent decline, the fourth in a row, according to CRE Daily's summary. Forecasters disagree, so run your deal both ways.
Big operators give you a sense of scale. Public Storage reported 90.4 percent same-store occupancy at September 30, 2026, and a 75.2 percent margin after indirect costs. Extra Space reported 94.0 percent same-store occupancy. Those are large portfolios with their own brands and systems, so a single independent facility should not borrow their margins. The company names are data points and not suggestions to buy their shares.
If you want the operating view, read how to start a self storage business. This page stays on the investor's question, which is whether the numbers hold.
How to analyze a storage facility
Start with rent and work down. Here is the formula the tool uses, in plain words, with its default numbers.
| Step | How it is calculated | Example |
|---|---|---|
| Potential rent | 300 units x 100 sq ft x $1.18 x 12 | $424,800 |
| Collected rent | Potential rent x 88% occupancy | $373,824 |
| Net operating income | Collected, less 6% fee, less $125,000 expenses | $226,395 |
| Cap rate | NOI divided by $3,400,000 price | 6.66% |
| Debt coverage | NOI divided by $201,856 yearly loan payments (70% loan, 7%, 25 years) | 1.12x |
| Cash on cash | $24,538 cash flow divided by $1,020,000 down | 2.4% |
| Break-even occupancy | (Expenses + loan payments) divided by (potential rent less the fee) | 81.9% |
A 6.66 percent cap rate sits near the market average, and this deal still pays only 2.4 percent cash on cash. The reason is the loan: its yearly payments are about 8.5 percent of the balance, above the cap rate. At 80 percent occupancy, coverage drops to 0.96x, and the income no longer covers the payments. For more on what a cap rate does and does not tell you, read what is a good cap rate.
What to check in the seller's numbers
- Physical occupancy against rent collected. A full building with discounted or unpaid units is not 95 percent on income.
- Street rate against in-place rate, unit size by unit size.
- Property tax after the sale, since a new assessment can change it. Ask a local expert.
- A management fee in the expenses, even if the owner works for free today.
- New projects in your trade area. IRR flags long lease-ups where the local pipeline is heavy.
Self storage financing
Self storage financing usually means a bank or SBA loan plus your own equity, sized by the income the facility can show. The startup guide lists the basic options. The question for an investor is narrower: does a program built for operating businesses accept you?
Read the SBA's own pages closely. We read these in November 2026. The 504 page lists a 5.5 million dollar maximum and 10, 20 and 25 year terms. It also says proceeds cannot go to speculation or investment in rental real estate, and that loans cannot go to passive businesses. The 7(a) page lists a 5 million dollar maximum and allows acquiring real estate. Federal rules at 13 CFR 120.110 exclude passive landlords who do not actively use the property, with exceptions for certain related companies.
Storage has been treated differently from an apartment building in the past. Inside Self-Storage reported in 2010 that the SBA had made self storage an eligible business type. A 2018 article there warned of tougher treatment for plans that rely on third-party management. We could not confirm the current treatment from the SBA's own text, and a new version of its lending rules took effect on October 1, 2026. So ask an SBA lender, in writing, whether your exact structure qualifies.
Whatever the program, a lender may size the loan by debt coverage. The tool shows the loan the income supports at a target you choose. At an editable 1.25x target, the example supports about 2.14 million dollars, not the 2.38 million it assumes. That gap of about 245,000 dollars would be more cash from you.
Self storage management companies
Self storage management companies run the facility for a share of revenue. Most charge between 5 and 7 percent of gross revenue, according to an August 2025 article in Inside Self-Storage by a regional manager at The Jenkins Organization. Smaller properties and early lease-ups may pay a minimum fee instead. In the tool, that fee moves with collected rent.
The percentage is not the only cost. The same article says some firms also earn from retail sales, tenant insurance programs and administrative fees, or mark up maintenance. Ask for those in writing, along with who controls pricing, who holds the bank account, and how you can end the contract.
Self storage SEO, PPC and marketing agencies
Marketing fills the units your break-even depends on, so it belongs in the expense line. We could not find an independent budget benchmark, so the tool has no separate marketing input. Add your quote to expenses.
- Self storage SEO. Start with the local listing. Tenant Inc's September 2025 guide, from a software vendor, advises a verified Google Business Profile for each location, a consistent name, address and phone number, and current hours.
- Self storage PPC. Paid search can bring in callers now, while SEO takes time. Track the cost per rental, not per click, and stop paying if you cannot see the rentals.
- Self storage marketing agency. Ask whether they will report rentals by channel, who owns the ad account and listing, and what happens to the calls their ads create.
Self storage technology, kiosks and security
Technology changes the staffing line in your budget, so get prices before you underwrite a smaller payroll. Most of the list is management software, online rentals, gate access, a kiosk and cameras. We cover the order to add them in self storage automation, including what a self storage kiosk does and does not do.
Self storage security solutions usually mean gates, cameras, lighting and door alarms. We have left out price ranges, since we could not trace one to a source we trust. Get a quote for the actual site, and ask your insurer whether a change affects your premium.
The cost line nobody underwrites: the phone
Say you buy a facility and cut on-site hours, which is often how the numbers work. Then someone with a truck booked for Saturday calls at 7pm. In the example, each point of occupancy is about 3,993 dollars of income a year after the fee. Missed calls are one of the few leaks you can fix in a week.
callflo.ai is an AI receptionist that answers your line 24/7, quotes from what you give it and captures the lead. Starter is 39 dollars a month on annual billing, or 49 dollars month to month, with 120 minutes and extra minutes at 0.98 dollars. Taking payment on the call and booking are on VIP, at 697 dollars a month on annual billing or 997 dollars month to month, with 1,000 minutes. Crooked River Self Storage, on VIP with a custom integration, runs two locations on one number, with 329 calls answered and 56 leads. It will not fill a building in an oversupplied market, and it adds little if your manager already catches every call. Plans are on the pricing page.
Hear who answers when nobody is on site
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