Key takeaways
- Pick funders for responsiveness, clear written terms, consistent underwriting and transparent commissions
- A complete, accurate file is the single biggest driver of turnaround time
- Describe the product accurately and never promise approval, amounts, pricing or timing
- Long-term relationships are built over many files, quick stip responses and honest feedback
For an ISO or broker, the funder you send a file to is an extension of your own reputation. When a merchant trusts you with their business, they are trusting you to put them in front of a partner who will review the file fairly, communicate clearly and fund when it says it will. Choosing the right funding partners, and working well with them, is one of the most important decisions an ISO makes.
This guide covers what to look for in an MCA funder, how a partnership typically works and the habits that help files move quickly from submission to funding.
What to look for in a funding partner
Every ISO weighs funders a little differently, but a few qualities matter almost everywhere:
- Responsiveness. Fast, clear answers on every file, whether the answer is an approval, a counter or a decline.
- Clear communication. Offers and stip lists in writing, and a real person to call when a file needs discussion.
- Consistency. Underwriting that is predictable, so you can set the right expectations with your merchants.
- Transparent commissions. Commission terms in writing before your first deal, paid on the schedule your agreement sets out.
- Visibility. A way to track every submission, document request and commission without chasing emails.
- Professional treatment of merchants. A funder that treats your merchants well protects your relationship with them.
How a partnership typically works
While every funder has its own process, most ISO partnerships follow a similar path:
- Partner application. You apply to the funder's ISO partner program with basic information about your business.
- Review and agreement. The funder reviews the application and, if approved, sends an ISO agreement that sets out commission terms and responsibilities.
- Onboarding. You receive submission instructions and, often, access to a broker portal.
- Submissions. You send merchant files, the funder reviews them and you receive decisions and offers.
- Funding and commissions. Once a deal funds, commissions are paid as your agreement describes.
At Limestone Advance, the ISO partner program follows exactly this path, with a short Partner Application, an ISO agreement in writing and a broker portal for approved partners.
Submitting files that move fast
The single biggest factor in turnaround time is the quality of the file. A complete, accurate submission lets underwriters get straight to work. A strong submission usually includes:
- A signed application with the legal business name, start date, ownership and contact details filled in
- The last three to four months of business bank statements, every page, ideally as original PDFs from the bank
- Month-to-date activity when the merchant is well into the current month
- The amount requested and what the funds are for
- Full disclosure of existing positions, including the funder, approximate balance and remittance amount where known
One merchant per email, with the business name in the subject line, keeps things organized on both sides. Our broker submission guide covers the details.
Setting the right expectations with merchants
Merchants remember how the process felt as much as the outcome. A few habits help keep expectations aligned:
- Describe the product accurately. A merchant cash advance is a purchase of future receivables. Explain the purchase price, the purchased amount, the specified percentage and the remittance schedule in plain language.
- Avoid promises you cannot keep. Approval, amounts, pricing and timing are always the funder's decision, so present them as possibilities until there is a written offer.
- Encourage merchants to read the agreement. A merchant who understands the terms up front is a merchant who comes back to you next time.
- Stay in the loop after funding. A quick check-in builds the kind of trust that leads to renewals and referrals.
Compliance is part of the partnership
The commercial funding industry continues to mature, and more states now have rules about how commercial financing offers are presented, including disclosure requirements for certain transactions. Good funders keep up with these rules, and good partners do too. Know the requirements that apply to your business and the states where you work, keep accurate records and present offers the way your funding partners provide them. This professionalism benefits everyone: merchants, ISOs and funders alike.
Building long-term relationships
The best ISO and funder relationships are built over many files, not one. Some practices that help:
- Send your best files first to a new partner so both sides can learn how the other works.
- Give feedback. If a decision surprised you, ask about it. Understanding a funder's approach helps you place future files well.
- Be responsive to stip requests. Quick answers on documents keep deals moving and show your merchants you are on top of their file.
- Grow together. As trust builds, many partnerships expand to renewals and additional funding for merchants in good standing.
Questions to ask a prospective funder
Before you send your first file, it is worth asking:
- What does a complete submission look like for you?
- How and when will I hear back on a file?
- How are commissions calculated and paid, and is that in writing?
- Will I have a portal or another way to track my submissions?
- Who do I call when a file needs a conversation?
Partner with Limestone Advance
Limestone Advance works with ISOs and brokers across the United States who want a responsive funder and clear communication on every file. Our goal is a same-day decision on complete files, commission terms are always in writing, and our partner line reaches a real person.
If that sounds like the kind of partner you want, submit a Partner Application. Our partner team reviews every application and will reach out with next steps.
Talk to a funder about working capital
Limestone Advance provides merchant cash advances to small businesses across the United States. Apply online in a few minutes or call our team in Suffolk, Virginia.


