A personal FICO of 600–649 is credit tier 2 for business line of credit underwriting — conventional bank revolving credit lines are largely inaccessible below 680, but online lenders apply bank-statement underwriting that weights deposit volume and consistency over personal FICO. At this band, online LOCs with drawn-balance APRs of 18%–36% are the primary structured access point, with SBA CAPLine programs available when SBSS scoring qualifies.
Business lines of credit sort into two underwriting universes at 600–649 FICO. Conventional bank revolving lines — including bank LOCs, credit union revolvers, and community bank lines — typically require 680+ personal FICO and 2+ years in business; the 600–649 band falls below the threshold at most bank credit departments. Online lenders in the LOC space use bank-statement underwriting: deposit volume, deposit consistency, average daily balance, and negative-day frequency replace FICO as the primary approval signal. Non-bank lenders in the LOC category evaluate cash flow metrics rather than credit score in isolation. The SBA CAPLine program — a subset of the SBA 7(a) system — provides revolving and non-revolving LOC structures for eligible small businesses; it uses FICO SBSS composite scoring that blends personal credit, business credit, and financial profile rather than personal FICO alone. ECOA prohibits adverse actions based solely on a protected characteristic — every complete application must be evaluated on its full profile.
Three LOC structures remain accessible at 600–649 FICO: (1) Online business line of credit — bank-statement underwriters assess 3–6 months of deposits; a borrower with consistent $10K–$20K/month deposits over 6+ months regularly qualifies at 600+ FICO. Draw limits at this band typically range from $10K to $100K; drawn-balance APRs run 18%–36% with undrawn commitment fees of 0.5%–1.5% annually. (2) SBA Working CAPLine — a revolving LOC specifically for seasonal or cyclical working capital needs, up to $5 million, WSJ Prime + 2.75% maximum rate, accessible at 600–649 when SBSS clears the lender threshold and cash flow supports DSCR above 1.25. The SBA 7(a) program page confirms CAPLine as a sub-program under the 7(a) umbrella. (3) Secured business LOC — pledging business receivables, inventory, or equipment as collateral enables approval at lower FICO thresholds; asset-backed revolvers at this band price at 12%–22% APR depending on collateral quality. The Federal Reserve 2024 Small Business Credit Survey reports that online and revenue-based lenders weight bank-statement cash flow over FICO, making them accessible to borrowers in the 600–649 credit tier whom banks often decline (though online lenders post the lowest full-approval rate of any channel, at higher cost).
At 600–649 FICO, non-credit factors consistently determine LOC approval outcomes: Monthly revenue — online LOC underwriters require $10,000–$20,000/month in business deposits over 3–6 months; SBA lenders underwrite to DSCR, requiring sufficient operating income to service the credit facility draw at 1.25x. Deposit consistency — average daily balance, negative-day frequency (fewer than 3 per month is a common threshold), and deposit source diversity drive bank-statement scoring more than FICO at online LOC lenders. Time in business — online LOC lenders commonly require 6–12 months; SBA CAPLine requires 2+ years; some revenue-based revolvers accept 4+ months. Existing credit utilization — a borrower at 600–649 FICO with high revolving utilization on personal credit cards signals distress; reducing utilization below 30% per card strengthens both FICO and LOC approval odds. No NSF pattern — non-sufficient-fund transactions in the look-back period are a frequent disqualifier at online LOC lenders regardless of FICO. ECOA requires lenders to consider the full application — no single threshold is the sole disqualifier.
The SBA CAPLine program provides four LOC structures under the 7(a) umbrella — the Working CAPLine (revolving credit for seasonal or cyclical working capital) and the Contract CAPLine (non-revolving for specific contract performance) are the most commonly used at 600–649 FICO. CAPLine limits are tied to the SBA 7(a) cap of $5 million; rates are WSJ Prime + 2.75% maximum (approximately 11%–13% at current prime). SBA 7(a) CAPLine documentation confirms that CAPLine eligibility follows SBA 7(a) size and eligibility standards with lender FICO overlays varying by institution — borrowers at 600–620 benefit from applying through lenders with documented near-prime programs. CDFIs certified by the CDFI Fund also operate revolving LOC products for mission-served businesses at 600–649 FICO, typically capped at $150K–$250K with mission-rate pricing. For sub-$50K revolving needs, SBA Microloan intermediaries provide working capital lines at 8%–13% APR with no SBA-set FICO floor.
Business LOC pricing at 600–649 FICO reflects credit-tier-2 risk premiums: Online business LOC at 600–649 FICO: 18%–36% APR on drawn balances, plus undrawn commitment fees of 0.5%–1.5% annually. Secured revolving LOC (asset-backed) at this band: 12%–22% APR — collateral quality and advance rate drive rate within this range. SBA Working CAPLine at 600–649 FICO: WSJ Prime + 2.25%–2.75% (the SBA maximum), approximately 11%–13% at current prime rates. CDFI revolving LOC: 8%–12% APR at mission rates for qualifying businesses. For comparison, the Federal Reserve 2024 Small Business Credit Survey found prime borrowers at large banks averaged 6%–8% on conventional revolving business lines. Improving FICO from 620 to 680+ in 12–18 months can shift access to bank LOCs at 8%–12% — a 10–24 percentage point reduction on drawn-balance costs. Every dollar of improvement in FICO at this band generates measurable LOC rate compression.
The CFPB credit score resources identify payment history (35%) and utilization (30%) as the dominant FICO factors. For 600–649 LOC borrowers, the practical path: (1) Make every drawn-balance LOC payment on time — on-time payment history on open LOC accounts reports to personal bureaus and builds payment history over 12 months. (2) Manage LOC utilization strategically — keeping drawn balances below 30% of the credit limit on each LOC improves both business credit utilization and personal credit signals where the LOC is personally guaranteed. (3) Reduce personal revolving utilization below 30% per card and below 20% in aggregate — this is the fastest lever for a borrower whose FICO is suppressed by high card utilization. (4) Build the business credit file independently: open a business credit card and 1–2 vendor net-30 accounts reporting to Dun & Bradstreet — Paydex improvement strengthens the SBSS composite and expands SBA CAPLine access. Moving from 630 to 680 FICO in 12–18 months typically unlocks conventional bank revolving lines at 8%–12% APR, replacing the 18%–36% online LOC tier.