SBA Rule Changes 2026: Size Standards, Loan Limits & What Business Owners Need to Know New SBA Federal Rule Changes for Small Businesses in 2026 Guide If you run a small business or rely on SBA financing, you might already be feeling the impact of this year’s rule changes. Let’s start with the headline: the Small Business Administration (SBA) has proposed a significant update to its definition of "small"—but don’t worry, this isn’t final yet. The public comment period runs through November 20, 2026, so there’s still time to weigh in. Meanwhile, other SBA lending and contracting policy updates have quietly slipped into effect, each with its own deadline and practical implications for business owners. So, what does all this mean for you? To stay ahead, check your current eligibility for contracts and loans, update your compliance procedures as needed, and jot down any comments or questions about the proposed rule before the comment period closes. ...