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SBA Lending Guide

Global DSCR: The Underwriting Math That Sinks Strong Deals

Your business can cover the loan and you can still get declined. Here's the full-household calculation lenders actually run.

By Thomas Hartwell | Updated

Global DSCR is the coverage ratio SBA lenders compute across the business and the owner's household together: (business cash flow + household income − living expenses) ÷ (business + personal debt service). SOP 50 10 8 requires at least 1.15×; most lenders underwrite to 1.25× and stress the ratio with a 10% cash-flow decrease.

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Written by Thomas Hartwell, author of the FUNDED series of industry-specific SBA lending guides.

Why Lenders Look Past the Business

Every SBA 7(a) loan carries an unlimited personal guarantee from owners of 20% or more, so the lender's real question is whether the whole economic unit — company plus household — stays solvent. Global DSCR answers that in one number, which is why it decides deals that business-only math would approve.

When you buy or start a business with an SBA loan, you personally guarantee it.[1] That guarantee means your mortgage, your car payments, and your grocery bill compete with the business loan for the same dollars. Underwriters model that directly instead of hoping it works out — and a surprising number of borrowers first hear the word "global" in their decline call.

The practical consequence: you should run this number on yourself before a lender does. The free global DSCR calculator does it in about a minute.

The Formula (Bank Convention)

The standard bank convention: add business cash flow available for debt service to all verifiable household income, subtract household living expenses, then divide by every debt payment — the proposed SBA loan, surviving business debt, and all personal debt service from the credit report.

Global DSCR = (Business Cash Flow + Household Income − Living Expenses)
÷ (Business Debt Service + Personal Debt Service)

  • Business cash flow — EBITDA or seller's discretionary earnings with documented add-backs (the salary being replaced, one-time costs, interest on refinanced debt).
  • Household income — spouse wages, rental income, anything recurring and verifiable on tax returns.
  • Other businesses you own — "global" is literal: the lender folds in the net cash flow of every business you own or control (all disclosed on SBA Form 1919). A profitable second business helps your ratio; one that loses money is a drain the lender counts against you, and its loan payments go in the denominator.
  • Living expenses — what the household spends to live, excluding debt payments (those belong in the denominator, not here).
  • Debt service — the new SBA payment, your other businesses' loan payments, plus personal mortgage, autos, student loans, and card minimums.

A Worked Example: Strong Business, Declined Deal

A business producing $180,000 of cash flow against a $95,000 loan payment shows a 1.89× business DSCR — comfortably bankable. Add a $90,000 household budget and $42,000 of personal debt payments, and the global ratio falls to 1.09× — below the SBA's 1.15× floor.

Line Amount
Business cash flow available for debt service$180,000
Other household income (spouse W-2)$60,000
Household living expenses($90,000)
Cash available for all debt$150,000
SBA loan debt service (~$620k at Prime + 2.5%, 10 yr)$95,000
Personal debt service (mortgage, autos, student loans)$42,000
Total debt service$137,000
Business-only DSCR ($180,000 ÷ $95,000)1.89× ✓
Global DSCR ($150,000 ÷ $137,000)1.09× ✗

Same business, same buyer, two verdicts. Fixes that work in this example: borrowing $75,000 less (−$14,250/yr of debt service) and retiring an auto loan before closing (−$9,600/yr) lifts the global ratio to $150,000 ÷ $113,150 = 1.33× — bankable.

The Thresholds and the Stress Test

SOP 50 10 8 sets the minimum at 1.15×, with startups and ramping acquisitions required to reach it within the first two years. Most lenders hold an internal 1.25× standard and re-run the ratio assuming a 10% decrease in monthly cash flow; 1.50× is considered strong.

Global DSCR Lender read
Below 1.15×Below the SOP minimum — decline risk without restructuring
1.15× – 1.24×Meets the floor, under most lenders' internal standard — expect scrutiny and stress-testing
1.25× – 1.49×Bankable at the standard threshold
1.50×+Strong — survives the 10% stress test with room

How to Fix a Thin Global DSCR

Five levers move the ratio: borrow less, inject more equity, retire small personal debts before applying, document every source of household income, and put any seller note on full standby. Each one either raises the numerator or shrinks the denominator — run them in the calculator before your lender meeting.

  1. Borrow less / inject more. Every $100,000 less borrowed cuts roughly $15,000/yr of debt service on a 10-year note at current rates.
  2. Retire small personal debts pre-close. Paying off a $15,000 auto loan can remove ~$9,600/yr from the denominator — often the cheapest DSCR points available.
  3. Document household income properly. Spouse wages and rental income count when verifiable; undocumented income counts for nothing.
  4. Structure the seller note on full standby. A standby note (no payments during the SBA term, per SOP standby requirements) adds no debt service; an amortizing one does.
  5. Right-size living expenses honestly. Lenders sanity-check the personal financial statement against credit and bank activity — lowballing gets caught and costs credibility.

Run Your Own Number

The free calculator applies this exact convention — including the 10% stress test and your margin at every threshold.

Open the Global DSCR Calculator

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Frequently Asked Questions

What is global DSCR for an SBA loan?

Global DSCR is the debt service coverage ratio computed across the business AND the owner's household together: (business cash flow + household income − living expenses) ÷ (business + personal debt service). Lenders use it because the same person stands behind both sets of obligations through the personal guarantee.

What is the difference between business DSCR and global DSCR?

Business DSCR only tests whether the company's cash flow covers the company's debt payments. Global DSCR adds the owner's household income, living expenses, and personal debt (mortgage, autos, student loans, cards) to the same ratio. A deal can pass business DSCR comfortably and still fail globally when the household side is heavy.

What minimum global DSCR do SBA lenders require?

SOP 50 10 8 sets the SBA's coverage floor at 1.15x, and startups or ramping acquisitions must reach it within the first two years. Most lenders underwrite to their own 1.25x standard and re-run the ratio assuming a 10% decrease in cash flow. 1.50x and above reads as strong.

What happens if my global DSCR is below 1.15x?

Expect a smaller loan offer, a larger equity injection requirement, or a decline. The workable levers are: borrow less, inject more, retire small personal debts before applying, document all verifiable household income, and structure any seller note on full standby so it doesn't add debt service.

Do lenders count my spouse's income in global DSCR?

Yes, verifiable household income — spouse wages, rental income, other recurring income documented by tax returns and the personal financial statement — counts in the numerator. It is one of the most commonly under-documented items, and documenting it properly can move a marginal deal over the threshold.

What if I already own another business?

It gets folded in. The SBA's analysis is 'global' — you disclose every business you own or control on SBA Form 1919, and the lender adds their combined net cash flow to the numerator and their loan payments to the denominator. A profitable second business can strengthen a marginal deal; a business that loses money is treated as a drain that pulls your global DSCR down. Your affiliated businesses are also counted together for the SBA size standard.

Global DSCR is one gate. The kit runs all of them.

The "Will the SBA Fund This Deal?" kit runs your actual deal the way an underwriter will — your walk-away price, equity injection, collateral, global DSCR with the 10% stress test, and the red flags that kill applications — verified against the current SOP 50 10 8. And we don't sell your lead.

See the Kit →