🆘 EIDL Payment Calculator

The SBA's Economic Injury Disaster Loan program offered long-term, low-rate working capital to businesses hurt by declared disasters, most famously during COVID-19. At the standard 3.75 percent over 30 years, a $150,000 EIDL costs $694.67 a month, with $100,081 of total interest over the life of the loan. The rate was fixed and the term was generous; the catch was that the debt is real and must be repaid from future earnings.

How to Use This Calculator

Enter the loan amount, the fixed interest rate, and the term in years. The calculator amortizes the loan monthly and shows the payment, total repaid, and how much of it is interest.

The Payment Math

Standard amortization applies: each payment covers the month's interest with the remainder reducing principal. The 30-year term keeps payments small, which was the program's intent, but it also means interest dominates the early years. After 10 years of payments on the example loan, the borrower has paid $83,360 but still owes about $122,000, because the long term back-loads principal repayment.

Worked Example

Loan $150,000, rate 3.75 percent, term 30 years (360 payments). Monthly rate 0.3125 percent. Payment = 150,000 x 0.003125 / (1 - 1.003125^-360) = $694.67. Total paid = $694.67 x 360 = $250,081. Total interest = $100,081, or 40 percent of all payments. The first payment is $468.75 interest and only $225.92 principal; the last is nearly all principal. That front-loaded interest is the price of the 30-year term.

EIDL Terms Worth Knowing

The Deferment Trap

EIDL payments were initially deferred, but interest accrued from day one and capitalized. Borrowers who waited the full deferment started repayment owing more than they borrowed, a smaller version of the deferred-payment math in our deferred payment loan calculator. Starting payments early, even voluntarily, was the cheapest move available, and the same holds for any accruing deferral.

There is also no prepayment penalty on EIDLs, which makes extra payments unusually valuable. Every extra dollar retires 3.75 percent debt, and it also shortens a 30-year obligation that would otherwise compound against the business for decades. Our early loan payoff calculator shows exactly what extra payments do to this loan.

Common Mistakes

Treating disaster loans as grants is the expensive myth; EIDLs must be repaid in full with interest, unlike PPP loans which were forgivable. Using the funds for prohibited purposes like expansion can trigger default. And ignoring the loan in cash-flow planning turns a manageable $695 payment into a crisis when revenue dips. Plan the obligation with our loan amortization calculator and our business loan calculator for comparison.

Life After EIDL: Managing the 30-Year Tail

A 30-year loan outlives most business plans, and the EIDL's tail deserves active management. The first priority is treating the payment as fixed overhead in every forecast: $695 a month is $8,340 a year that must be earned before the business truly profits. Companies that absorbed the payment into their cost structure survived; companies that treated it as temporary did not adjust and felt the squeeze every slow month.

The second priority is opportunistic prepayment. With no prepayment penalty, any surplus cash retires 3.75 percent debt and shortens the tail, but the hurdle is the alternative use: cash earning 5 percent in Treasury bills arguably beats prepaying 3.75 percent debt, while cash sitting idle does not. The rational rule is to prepay only with cash that has no better risk-adjusted home, which in practice means sweeping true surplus annually.

Finally, keep the compliance clean. EIDLs restrict fund usage and require ongoing business operation; violating the terms can accelerate the loan. File the required reports, keep the business entity active, and document the use of funds. A cheap loan becomes expensive the moment its covenants are breached.

Documenting EIDL Use of Funds

The SBA can audit EIDL fund usage, and sloppy records turn a cheap loan into a legal problem. Keep a separate ledger of every EIDL dollar: date, payee, purpose, receipt. Eligible uses are working capital, payroll, rent, and operating expenses; prohibited uses include expansion, refinancing old debt, and distributions beyond reasonable compensation. The ledger is your defense if questions come.

Commingling is the common failure. Depositing the EIDL into the general operating account and spending from the mix makes reconstruction painful and invites suspicion. A dedicated account for the loan proceeds, even if it feels like overkill for a small business, creates a clean paper trail that ends arguments before they start. Thirty years is a long time to wish you had kept receipts.

Estimates for planning only, not financial advice.