The SBA quietly changed the rules on March 1st. And it could save you thousands on your next acquisition loan.

Here's what happened: the SBA expanded the number of base rates lenders can use to price 7(a) loans. For years, lenders were limited to just two options - the Prime Rate or the SBA Optional Peg Rate. Now they can also use SOFR, the 5-year Treasury Note rate, or the 10-year Treasury Note rate. That's five base rate options where there used to be two.

Here's what the numbers show. Prime sits at 6.75% as of this week. For a typical acquisition loan over $350K, the max rate is capped at Prime + 3.0%, which puts the ceiling at 9.75%. Most well-qualified buyers are landing somewhere between 9.00% and 9.50% on actual deals right now.

But the new alternative base rates create competition among lenders in a way we haven't seen before. A lender using SOFR or a Treasury rate as their base might price a loan differently than one anchored to Prime. The ceiling hasn't changed - your rate still can't exceed Prime plus the allowed spread - but the floor just got more flexible.

Smart buyers need to do one thing right now: get at least three quotes from different SBA lenders and ask each one which base rate they plan to use. FOIA data from Q4 2025 showed a 148-basis-point spread between the tightest and loosest lenders on acquisition deals. On a $1M loan over 10 years, that gap is roughly $100,000 in total interest. That's not a rounding error. That's your working capital cushion.

One more thing to watch: the Fed meets March 17-18. Markets are pricing in a 99% chance of no rate change, holding steady at 3.50%-3.75%. The first realistic cut window is the May or June meeting. If prediction markets are right, Prime could drift down to 6.25%-6.50% by year-end. That's directionally positive for variable-rate SBA borrowers, but it's not a reason to wait on a deal that works today.

The takeaway: rates are better than they've been in nearly three years. The new base rate options give you more leverage when shopping lenders. And every deal I run through the Bulletproof calculator at DealScore Pro already factors in current rate assumptions so you can see what your real debt service looks like before you ever call a broker.

Run the numbers. Shop the lenders. Structure the deal right. That's the method.

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