Last reviewed: October 2, 2026
Disclaimer: This review summarizes publicly available information, including customer reviews, forum posts such as Reddit, BBB and Trustpilot listings, court records, regulator actions, and news reports. It is not the opinion of MCAFax. MCAFax cannot confirm or deny any allegations, complaints, or claims described here. Information may be outdated or incomplete. MCAFax is not affiliated with this lender. This is not legal or financial advice. Lenders who believe something is inaccurate can contact info@mcafax.com for review.
Summary verdict
Fundbox offers a business line of credit for younger businesses, with APRs NerdWallet lists at 36% to 99% (NerdWallet). BBB customer reviews average 4.67/5, though most BBB complaints are billing and credit-reporting disputes (BBB).
Paper Grade: C paper
NerdWallet lists a 600 credit score, 3 months in business and $30,000 in annual revenue, with weekly repayments (NerdWallet). Very young businesses are eligible, but the 600 credit floor and APR-priced line keep it at C paper rather than D. Paper grade describes the borrower profile this lender targets, not the lender's quality.
Research-Based Reputation Score: 7.5 / 10 (reputation rank: tied #16 of 72 lenders scored, as of October 2, 2026)
How we got there: start at 5.0, then +1 for Trustpilot at 4.7 stars (NerdWallet), +0.5 for an A+ BBB rating without accreditation (BBB), +1 because BBB lists the business as started in 2013, and +1 because we found no regulator orders or court judgments against it. Then −1 for recurring themes in 26 BBB complaints over three years, mostly billing issues such as disputed accounts, identity-theft claims and credit reporting (BBB complaints).
About the Paper Grade: it reflects only the borrower profile and deal type the lender targets (stated credit, time-in-business and revenue minimums, and product type). It is not a judgment of the lender's quality. A = strong credit (about 625–650+), established businesses, APR-priced loans or lines. B = fair credit (about 600+), short-term or factor-rate products. C = credit about 500–599, younger businesses, MCA or revenue-based, or sales-based platform financing with no credit check. D = minimal credit requirements, very new businesses, stacked positions or high-risk industries. Lawsuits and regulator actions never change the Paper Grade.
About the Research-Based Reputation Score (1–10, half-points): it summarizes public signals and is not the opinion of MCAFax. Every lender starts at 5.0. Points are added for BBB accreditation and an A+ rating, years in business, strong Trustpilot ratings, and a clean record (no regulator orders or court judgments in which the lender itself is a named party). Points are subtracted for a BBB rating of C− or lower (−1), a BBB customer-review average below 2.5/5 (−0.5), recurring complaint themes (−0.5 to −1), and a pending class action (−0.5). Government actions are scored only when the lender itself is a named party: −1 for a settled action not about borrowers, −2 for a regulator consent order with a penalty and no admission, −3 for active enforcement or a final order about borrower treatment, and −5 for an industry ban or court finding of liability. The lowest score, 1.0, is reserved for lenders under an industry ban or a final fraud judgment. Ratings we could not read score zero, and routine collection suits are not scored. Every point applied to this lender is listed above. Ranks are as of the date shown; MCAFax cannot confirm or deny any allegation counted here.
At a glance
| Item | Details |
|---|---|
| Product | Business line of credit (NerdWallet) |
| Amounts / terms | $100 To $250,000; 3 to 24 months (NerdWallet) |
| APR | 36% To 99% (NerdWallet) |
| Minimums | 600 Credit, 3 months in business, $30,000 annual revenue (NerdWallet) |
| Credit checks | Soft pull to apply; hard pull at first draw (Fundbox FAQ) |
| BBB | A+, not accredited; 4.67/5 from 139 reviews; 26 complaints in 3 years (BBB) |
What borrowers and reviewers report
Positive themes: fast funding, minimal paperwork, no origination or prepayment fees, and credit-building, per NerdWallet (NerdWallet). BBB reviewers often describe an easy process (BBB reviews).
Negative themes: high rates compared with banks, a UCC lien, a possible personal guarantee and weekly repayments (NerdWallet). BBB complainants report disputed accounts on credit reports and trouble stopping ACH payments (BBB complaints).
Who it may suit, and who may want to skip it
May suit: young businesses (3+ months) with 600+ credit that want a small, flexible line. May want to skip: businesses that qualify for bank credit at lower APRs.
What to do next
Been contacted by Fundbox? Report the phone number or email that reached you, and sign up to block unwanted funding calls. → Report a number or email (https://mcafax.com/report?lender=fundbox)
Looking for funding? Tell us what you need, and we'll help you compare Fundbox with other funders that fit. → Apply through MCAFax (https://mcafax.com/apply?lender=fundbox)
Sources (accessed October 2, 2026)
NerdWallet Fundbox review: https://www.nerdwallet.com/business/loans/reviews/fundbox
Fundbox FAQ: fundbox.com
BBB profile: https://www.bbb.org/us/ca/san-francisco/profile/financial-services/fundbox-inc-1116-462656
BBB customer reviews: https://www.bbb.org/us/ca/san-francisco/profile/financial-services/fundbox-inc-1116-462656/customer-reviews
BBB complaints: https://www.bbb.org/us/ca/san-francisco/profile/financial-services/fundbox-inc-1116-462656/complaints
Disclaimer: This review summarizes publicly available information, including customer reviews, forum posts such as Reddit, BBB and Trustpilot listings, court records, regulator actions, and news reports. It is not the opinion of MCAFax. MCAFax cannot confirm or deny any allegations, complaints, or claims described here. Information may be outdated or incomplete. MCAFax is not affiliated with this lender. This is not legal or financial advice. Lenders who believe something is inaccurate can contact info@mcafax.com for review.