The formula, and the two ways a bank fills in the top line
Debt service coverage ratio is cash available for debt service divided by total debt service. The bottom half is easy. The top half is where banks differ.
Debt service is every scheduled principal and interest payment on business debt in the period: term loans, equipment notes, vehicle loans, interest on the line of credit, and the current portion of anything with a balloon. It is what the loan schedules say you owed, not what you happened to pay.
EBITDA is earnings before interest, taxes, depreciation and amortization. You start with net income from the P&L and add those four lines back. It is the most common top line for DSCR because it approximates the cash the operations threw off before anyone decided how to spend it.
Operating cash flow is the cash the business actually generated, taken from the cash flow statement. It starts from net income too, but it also picks up the money tied up in receivables and inventory. When a customer pays slowly, operating cash flow drops and EBITDA does not notice.
Most community and regional banks start from EBITDA and then adjust it. The SBA's rulebook for 7(a) lenders, SOP 50 10 8, sets a 1.15x minimum for a standard 7(a) loan, measured against the debt service the business will carry once the new loan is in place. If you only compute one version, compute EBITDA less distributions over scheduled debt service, since it is the version most lenders build.
A worked example from a QuickBooks P&L and a loan schedule
A 38-person commercial cleaning company, an S corporation, carries an equipment loan and three vehicle notes, and its trailing twelve months P&L in QuickBooks Online shows net income of $187,400, interest expense of $41,200 and depreciation of $58,900. Tax is paid on the owner's return, so the add-back for taxes is zero. EBITDA is $187,400 plus $41,200 plus $58,900, which is $287,500.
Now the loan schedules, which do not live in the P&L. The equipment loan's amortization schedule shows $96,300 of principal over the same twelve months. The three vehicle notes show $38,700. Interest on everything was the $41,200 already on the P&L. Total debt service is $176,200.
DSCR is $287,500 divided by $176,200, or 1.63. On paper this owner has room.
Then the bank's analyst does what Wipfli's guide to global cash flow describes as standard practice: net income plus depreciation plus interest, minus distributions. This owner took $112,000 out during the year, for the tax bill on the pass-through income and to live on. Cash left for debt service becomes $175,500. Divided by $176,200, the ratio is 0.996. One line has moved it from comfortable to under 1.0 without anything in the business changing.
Both numbers are true. Ask your lender which one it uses before the annual review, not after.
What the thresholds mean
There is no single number. Commerce Bank's 2026 explainer puts the typical minimum at 1.2, around 1.5 for unsecured lending, and about 1.1 for SBA loans. The SBA's own floor for a standard 7(a) loan is 1.15x under SOP 50 10 8, and since 1 March 2026 the smaller 7(a) loans have needed 1.10x along with the two most recent months of bank statements. ClearlyAcquired's summary of post-closing requirements notes that many SBA lenders also write a 1.25x maintenance covenant into the loan agreement, the number you have to keep hitting after the money lands.
| Loan type | Typical minimum DSCR | Source |
|---|---|---|
| Conventional term loan | 1.20 to 1.25 | Commerce Bank, 2026 |
| Unsecured | about 1.5 | Commerce Bank, 2026 |
| SBA 7(a) standard | 1.15 | SOP 50 10 8 |
| SBA 7(a) Small Loan | 1.10 | SOP 50 10 8 update, since 1 March 2026 |
| Post-closing maintenance covenant | often 1.25 | ClearlyAcquired |
A ratio of 1.0 means you generated exactly enough to make the payments and nothing else. Below it, you made the payments out of savings, a line draw, or your own pocket. The margin between 1.0 and the bank's 1.25 exists because the bank expects a bad quarter and cannot tell which one.
The same formula, turned around, tells you how much debt the business can afford. Divide cash available by the bank's floor. For the cleaning company above, $287,500 of EBITDA at a 1.25 floor supports $230,000 of yearly principal and interest, while the $175,500 left after distributions supports $140,400. The gap between those two figures, about $89,600 a year, is the loan the owner believes the company can carry and the bank believes it cannot.
Why the ratio drops when revenue does not
Owners usually assume DSCR moves with sales. It moves more often with things that never appear on the P&L. Distributions are the first, and the example above shows how: every dollar you pull out, for taxes or to fund another company you own, is a dollar the bank removes from the top line. Two kinds do the most damage. One is the lump taken in April to cover tax on pass-through income, which the bank counts as a draw like any other. The other is the transfer to a sister company that the bookkeeper posts as a distribution because nobody set up an intercompany loan, so the operating company looks weaker and the sister company looks no stronger, since a capital contribution is not cash flow.
A new truck is the second. Finance a $74,000 truck over five years and the P&L sees about $14,800 of depreciation a year, which you add back. The debt schedule sees roughly $13,500 of principal a year plus interest, which goes in the denominator. Buy three trucks in a good year and the denominator climbs while EBITDA barely moves. Paying cash does not always avoid this. Many loan agreements define cash available as EBITDA less distributions less unfinanced capital spending, so a truck bought outright comes off the top line in the year you buy it, which for that year's ratio is worse than the note would have been.
A balloon, or the end of an interest-only period, is the third. A seller note that starts amortizing in year three raises scheduled debt service on a date you agreed to years ago. A line of credit the bank converts to a term loan does the same, and neither shows on the P&L until the interest changes. The loan schedule has the date on it.
The personal side counts as well. The Federal Reserve's 2026 Small Business Credit Survey of 6,525 employer firms found that 59% of those with debt had given a personal guarantee. When the business ratio slips, the bank looks at your personal cash flow next, which is why global cash flow analysis matters even if you only care about one loan.
Tracking it monthly
The bank checks once a year, from a tax return that describes a year which ended months earlier. By then any fix is late. A trailing twelve-month DSCR, recomputed each month, is the practical version. Pull the twelve-month P&L from QuickBooks, add back interest and depreciation, subtract the distributions you actually took, and divide by twelve months of scheduled payments from your loan schedules. It takes twenty minutes if the books are current. If your bookkeeper closes six weeks after month end, the number is always two months stale, which is a fair reason on its own to ask for a faster close.
Do it for each company, not for the group. A loan is tested on the entity that signed for it, and a combined ratio that looks fine can hide one company at 0.9 and another at 2.1. One line per entity on a sheet is enough. If a loan schedule has gone missing, the balance sheet gives you the principal, because the fall in a loan's balance between two dates is the principal paid between them.
Watch the trend rather than the level. A ratio that goes 1.61, 1.54, 1.47, 1.39 over four months is telling you something a single 1.39 cannot, and it gives you time to act.
One piece of common advice we disagree with is paying a loan down early to improve the ratio. Unless the lender re-amortizes, your scheduled payments do not change, so the denominator stays put, and you have moved out cash that would have counted toward next year's cushion. The money is better held, or used to retire the highest-payment note in full, which does remove a line from the schedule.
Several companies, several loans
Most owners we talk to have more than one QuickBooks file and more than one lender. Each loan has its own covenant, tested on the entity that signed it. The common trap: the operating company sends $80,000 to the property LLC to cover a mortgage shortfall, records it as a distribution, and its own DSCR falls below covenant while the group as a whole is fine. Owners who keep one LLC per rental property run into this every year.
There are two numbers to keep. Per-loan DSCR, computed on the borrowing entity exactly as its loan agreement defines it. And a global figure across every company and your personal return, which is what the bank builds when it decides how it feels about you as a whole. They can disagree, and the disagreement is where the conversations happen.
Navigator's Pro plan computes breakeven and coverage against the loan terms you enter, per entity and consolidated, from a read-only connection to each QuickBooks Online file, refreshed daily. The CFO plan adds covenant monitoring, with a named CFO who raises a slipping ratio on the monthly call before the bank does. Plans are on the pricing page.
What to do at 1.1
At 1.1 you are above water and below the number most banks want. In the cleaning company's case, 1.1 on $176,200 of debt service means about $193,800 of cash available, and 1.25 needs $220,250, so the shortfall is roughly $26,400 a year. That is a sum an owner can hold back over two quarters.
There are four levers, worth taking in the order banks tend to accept them. The first is distributions. Taking less out for two or three quarters is the fastest fix and the one the bank most likes to see, because the owner is absorbing the shortfall. The second is the schedule: refinancing a short equipment note into a longer term lowers annual debt service without touching the business, and total interest goes up as the price. In the example, the equipment loan carries $96,300 of principal a year, and spreading the remaining balance over a longer term brings that down and lifts the ratio. Lenders will do it for a borrower they want to keep, and not in the month the covenant is tested. The third is cost, and only real cuts count, because the bank will ask what changed. The fourth is revenue, which is the slowest and the least in your control.
What the method cannot do is tell you which quarter the bank will pick. A trailing twelve months that reads 1.1 in March can read 1.3 by September if the spring was the problem. Talk to the lender early. A covenant conversation that starts with your numbers goes differently from one that starts with theirs.
Questions owners ask
What is a good DSCR?
Above 1.25 satisfies most conventional lenders, and above 1.5 gives you room for a bad quarter without a phone call. SBA lenders accept 1.10 to 1.15 at origination, and many write a 1.25 maintenance covenant into the loan agreement. What counts as good for you is the number in your own loan agreement plus a cushion.
Is a DSCR of 1.0 enough?
No. At 1.0 the business produced exactly enough to make its scheduled payments and nothing more. One slow month or an unexpected tax bill puts you below it, and the payment comes from reserves or a line draw. Banks expect a bad quarter they cannot predict, so their minimums sit at 1.2 or higher.
How do I calculate DSCR from my P&L?
Take net income for the period, add back interest, taxes, depreciation and amortization to get EBITDA, and subtract distributions if your lender does. Divide by the scheduled principal and interest for the same period, taken from your loan schedules, which are not on the P&L. Twelve months is the standard period.
What if my DSCR is too low?
Reduce distributions first; it is the fastest lever and the one banks respect. Then look at refinancing short notes into longer terms to lower annual debt service. Cut real costs, not deferred ones. Tell the lender before they find it, with a twelve-month trend in hand; a waiver is easier to get from a bank that heard it from you.
Does DSCR include owner salary?
Salary paid through payroll is deducted before net income, so it is already inside the ratio. Distributions and draws are not on the P&L, and most lenders subtract them from cash available. If you pay yourself mostly through distributions, your DSCR looks better on paper than a bank will allow. Compute it both ways.
Related
If you are borrowing through the SBA, the SBA's coverage rules for 7(a) loans go through the thresholds in more detail. When the bank looks at you across every company you own, global cash flow analysis explains what it builds. And once a loan has closed, loan covenants and lender reporting walks through what you have promised to keep sending.
If you would rather see coverage for each of your companies every morning than once a year, the free trial connects to QuickBooks Online in about fifteen minutes and needs no card: navigatorhq.ai.
Published . Last updated . Reviewed by a CFO on the Navigator team.