The specs
OnDeck ISO PortalFundbox ISO Portal
Product typeMulti-productLOC
Amount range$5K – $400K (term); $6K – $200K (LOC)$1K – $150K (LOC)
Cost (factor / APR)Term APR 27%+; LOC APR 30%+Weekly fee + APR equivalent typically 30 – 60%
Speed to fundSame-day for approved files; portal submission-to-offer 1 – 2 daysAs fast as 1 day post-approval; portal submission-to-offer 1 – 3 days
Min time in business12 months6 months
Min monthly revenue$8,000$8,000
Min credit score600+600+
Products
- Term loan
- LOC
- Line of credit
Verdicts by use case
- Newer business (6 – 12 months TIB) — Winner: Fundbox ISO Portal. Fundbox's 6-month TIB floor reaches newer merchants. OnDeck's 12-month requirement excludes the file structurally. For sub-12-month merchants Fundbox is the only structural option in this 2-way.
- Established A-paper merchant seeking cheapest cost — Winner: OnDeck ISO Portal. OnDeck term loan APR (27 – 33%) is cheaper than Fundbox's APR-equivalent (30 – 60%) on the same dollar amount over comparable payback. For 12+ month merchants with 600+ FICO OnDeck wins decisively on cost.
- Mid-size deal ($150K – $400K) — Winner: OnDeck ISO Portal. Fundbox caps at $150K LOC. OnDeck term goes to $400K. For deals above $150K OnDeck is the only structural option in this 2-way.
- Independent ISO without 2+ years / $1M volume — Winner: Fundbox ISO Portal. OnDeck excludes new and mid-volume ISOs structurally. Fundbox's broker channel is small but at least submittable for independent ISOs. Neither is a great primary in this case — route to Credibly, Greenbox, or Accord direct for the actual cascade.
- Established ISO with OnDeck direct access seeking same-day funding — Winner: OnDeck ISO Portal. OnDeck funds same-day for approved files. Fundbox funds as fast as 1 day post-approval with 1 – 3 days submission-to-offer — total 2 – 4 days. For same-day funding OnDeck wins.
The honest takeaway
OnDeck ISO Portal and Fundbox ISO Portal solve overlapping but distinct problems. The right choice depends on three things you already know about your business: how fast you need the money, how long you've been operating, and whether the capital need is one-time or recurring.
Frequently asked questions
- If my merchant doesn't qualify for OnDeck (under 12 months TIB), is Fundbox the right fallback?
- Fundbox is one option but rarely the first fallback as of 2026-06-28. The realistic cascade for sub-12-month merchants: (1) Credibly direct (6+ months TIB, $15K+/mo revenue, 550+ FICO — covers most newer merchants OnDeck declines) — submit via API V2 portal for fastest funding and best ISO commission economics. (2) Greenbox Capital (6+ months TIB, accepts down to 500 FICO on some programs, Priority 1 ISO program with up to 19% commission) — strong fallback for newer merchants and B-paper. (3) Accord Business Funding (3+ months TIB — lowest in the market, B/C-paper friendly, up to 15% commission with 100% renewal) — primary for the shortest-TIB files. (4) Fundbox — best for merchants below Credibly's $15K/mo revenue floor where the standard cascade declines. (5) Forward Financing for B-paper merchants with seasonal revenue volatility. The realistic implication: Fundbox is the cascade entry for sub-$15K/mo merchants specifically, not the first fallback for all sub-12-month files.
- Why is Fundbox's APR-equivalent so much higher than OnDeck's term APR?
- Two structural reasons. (1) Risk profile — Fundbox accepts merchants OnDeck declines (6+ months TIB vs 12+ months, smaller monthly revenue floor, smaller-draw structure that suggests less-established cash flow). Higher risk warrants higher pricing. (2) Product structure — Fundbox uses a weekly-fee structure on revolving draws which translates to a higher APR-equivalent than OnDeck's straight term loan amortization on the same dollar amount and payback period. The weekly-fee structure is operationally simpler for merchants to understand (no compounding interest math) but produces a higher effective APR than a comparable term loan. The structural implication for merchants: if the file qualifies at OnDeck (12+ months TIB, 600+ FICO, $8K+/mo revenue) the term loan APR (27 – 33%) will be materially cheaper than Fundbox's APR-equivalent (30 – 60%) over a 24-month payback. For sub-12-month merchants Fundbox is the structural fit despite the higher cost — OnDeck declines structurally and other thin-file LOC alternatives are limited.
- Which is right for a $75K capital need on a 14-month-TIB, 620 FICO, $18K/mo Florida services merchant?
- Both could fund but OnDeck is structural primary if the ISO has direct OnDeck portal access (2+ years / $1M+/mo volume) and the merchant cost decision is driven by APR. The file qualifies for OnDeck (14 months exceeds 12-month floor, 620 FICO exceeds 600 floor, $18K/mo exceeds $8K floor) — expect OnDeck term loan APR 28 – 34% on $75K with same-day funding for approved files. Fundbox also qualifies (14 months exceeds 6-month floor, 620 FICO exceeds 600 floor, $18K/mo exceeds $8K floor) — expect Fundbox LOC at APR-equivalent 35 – 50% on $50K – $75K with first draw 2 – 4 days. For merchant cost OnDeck wins; for ISOs without OnDeck direct access Fundbox is the only realistic submission in this 2-way. The realistic playbook for this file as of 2026-06-28: route to Credibly direct first (API V2, 4-hour funding, factor 1.20 – 1.28 on this A/B-paper file with strong ISO commission), present OnDeck term loan via direct portal if ISO has access (cheaper APR for the merchant), use Fundbox only if the merchant explicitly wants a revolving LOC structure under $50K and accepts the higher APR-equivalent for the draw flexibility.