Kolleno vs Upflow: choose Kolleno if unapplied cash is the bottleneck and an order-to-cash team needs bank-file matching and an agent that acts, from $650 per user a month; choose Upflow if your finance team wants countback DSO measured before anything is automated. Both lead with AI and point it at opposite ends of the same job.
Upflow aims it at the ledger and at measurement, and was last reported at $440 (Grow) and $880 (Scale) a month in 2024, now quote-only.
Neither product computes a late fee or interest charge, so the enforcement row that usually separates receivables tools reads the same on both sides here.
That takes the loudest difference out of the comparison and leaves three quieter ones: what each AI actually does, how deep the cash application goes, and what a price that is never printed does to a shortlist.
Neither of these products is priced for a small business and neither one charges a customer for being late. Kolleno meters by seat and keeps workflow automation for Business Plus at $1,245 a seat; Upflow prints no rate on any of its four tiers.
With enforcement off the table on both sides, what is left to compare is where each vendor points its AI, and how deep each one reads the cash.
What accounts receivable software is (and what it is not)
Accounts receivable software works the invoices a business is owed. Both tools here connect to Xero, QuickBooks Online, NetSuite and Sage Intacct, chase by email and SMS in multi-step workflows, run a branded customer portal, and match incoming payments to open invoices.
Each goes deeper in one direction. Kolleno adds bank-file cash application, a continuously updated credit score and payment plans. Upflow adds collections analytics: countback DSO against best possible DSO, collection effectiveness and an at-risk rate above 90 days.
What it is not:
- Not the ledger or the ERP. NetSuite, SAP or QuickBooks Online holds the books. Kolleno writes NetSuite journal entries back, and Upflow sends late fees to the ERP to apply.
- Not a late fee engine, on this pair. Neither product computes a late fee or interest charge, so that work lands in the ERP or on a spreadsheet.
- Not a credit bureau. Kolleno feeds bureau integrations into a score of its own, and Upflow scores customers with no bureau data.
- Not the billing system. Upflow connects to Stripe Billing and Chargebee, where a subscription business raises its invoices.
It sits between the ledger and the customer. Invoices and payments come in from the accounting system, and reminders, matches and reports go back out.
Kolleno and Upflow compared: the table
Four rows carry this: cash application, reporting depth, payment plans and price. The late-fee row reads the same on both sides, which is why it does no ranking work on this page.
 |
 |
|
|---|---|---|
| Best for | Order-to-cash teams where unapplied cash is the bottleneck | Finance teams that want collections measured before automating |
| Revenue fit | Under £1m on the entry plan, with published tiers stepping at £1m, £100m and £1bn | Five tiers by gross invoice value: up to $10m, $25m, $50m and $100m, then above $100m |
| Home market | London head office, founded 2020, selling internationally | New York head office, founded in Paris in 2018, customers in 30-plus countries |
| Entry price | $650 per user a month on BusinessPay, $545 per user on annual billing, minimum one user | Not published. Five quote-only tiers by gross invoice value, Starter up to $10m to Enterprise above $100m; Grow was last reported at $440 a month and Scale at $880, now quote-only |
| Chasing channels | Yes (email and SMS, with SMS and call allowances on the Enterprise tiers); letters and calls are not workflow actions | Yes (email, SMS and letter send automatically; calls and tasks are manual steps). Automatic actions fire once a day, business days only |
| Late fees and interest | None found; no feature page or help article documents a late fee or interest calculation | No, via your ERP only; Upflow documents applying late fees in NetSuite and computes nothing itself |
| Payment plans | Yes (weekly, monthly or bi-monthly splits with plan-linked automations; uneven totals split by hand) | No (customer-initiated partial payments and promises to pay only) |
| Customer portal | Yes (branded; saved methods, recurring and scheduled payments, credit notes, disputes) | Yes (branded; online payments, Autopay with saved methods, disputes, customer-set promises to pay) |
| Cash application | Yes (email remittance parsing, SFTP bank connections, BAI2, NACHA and ISO 20022 files, match scoring, one-to-many, partials, credit-note offsets, FX and bank-fee handling) | Yes (auto-matching with suggestions and rules, plus an agent that reconciles from an uploaded bank CSV) |
| Credit risk | Yes (continuously updated AI credit scores, bureau integrations, real-time alerts, self-adjusting limits) | Light (customer credit scoring and risk-profile segmentation, no bureau data) |
| Reporting and analytics | Yes (DSO reporting, real-time dashboards, cash-flow forecasting) | Yes (countback DSO against best possible DSO, collection effectiveness, at-risk rate above 90 days, aging, billing-cohort forecasting, scheduled by email) |
| Ledgers and ERPs | NetSuite, SAP S/4HANA and Business One, Sage Intacct, Dynamics 365, Workday, Oracle JD Edwards, Epicor, Infor, Odoo, Zuora, Xero, QuickBooks Online | Xero, QuickBooks Online, NetSuite, Sage Intacct, Stripe Billing, Chargebee, Zuora |
| Public API | Yes (Open API v1) | Yes (documented) |
| Rated | 4.9 from 117 on G2; 5.0 from 18 on the Xero App Store; 5.0 from 8 on Capterra | 4.8 from 233 on G2; 4.5 from 15 on Capterra; 5.0 from 1 on the Xero App Store |
One note on the AI row, which is the row both vendors market hardest: what each product does under that word is set out action by action further down this page, because the word covers three different behaviors. Elsewhere, “Not published” means the vendor prints no figure and “None found” means nothing in the vendor’s own materials points either way.
1. Kolleno
Best for order-to-cash teams on NetSuite or SAP that need cash application
What is it best for?
For an order-to-cash team whose real bottleneck is unapplied cash rather than unsent reminders, on NetSuite, SAP or Sage Intacct.
- Fits
- Order-to-cash teams: BusinessPay for turnover under £1m, Business Plus £1m to £100m, Enterprise £100m to £1bn, and minimum seat counts of one, two, three and four by tier
- Regions
- London head office, founded 2020, selling internationally; pricing is displayed in the visitor’s currency
- Entry cost
- $650 per user a month on BusinessPay, $545 on annual billing, minimum one user, for turnover under £1m; Business Plus $1,245 per user, or $995 on annual billing. Check current pricing with the vendor.
- Rated
- 4.9 from 117 G2 reviews; 5.0 from 8 on Capterra · Xero App Store listing, 5.0 from 18
- Awards
- G2 Best Software Awards 2024
- Runs on
- NetSuite as a native SuiteApp, SAP S/4HANA and Business One, Sage Intacct, Dynamics 365, Workday, Oracle JD Edwards, Epicor, Infor, Odoo, Zuora, Xero, QuickBooks Online, plus Salesforce and ServiceNow
- Late fees and interest
- None found. No feature page or help article documents a late fee or interest calculation, so a statutory or contractual charge is raised outside the tool
- Does best
- Cash application, with email remittance parsing, BAI2, NACHA and ISO 20022 bank files, match scoring and NetSuite multi-currency journal entries
Kolleno’s center of gravity is cash application, and it is the deepest capability either product brings to this page. Remittance emails are parsed into suggested matches, bank connections run over SFTP, and matching covers one-to-many, partials, credit-note offsets, foreign exchange differences and bank fees, with multi-currency journal entries written back into NetSuite.
Its AI comes in three layers, on every subscription tier, and what separates them is who acts. Insights predict and score. The copilot drafts and waits for a person.
The agent works a collections policy on its own and adjusts limits and terms as it goes. Workflows trigger on invoice creation, an ERP payment, an email bounce or a file upload, with conditional branches and run-hour restrictions.
Around that, disputes are classified by reason code and ranked, the portal carries credit notes and account statements, and payment plans split weekly, monthly or bi-monthly with the automations tied to the plan rather than to the original invoice.
Limitations with Kolleno. $650 per user a month on BusinessPay, a tier for turnover under £1m that leaves out workflow automation, puts it above the budget of most small businesses, and the second tier nearly doubles that with a two-seat minimum. No late fee or interest function is documented anywhere in its materials.
Letters and calls are not workflow actions, so escalation past email and SMS is manual. Custom sending-domain setup is handled by an account manager rather than self-serve. Navigation and reporting depth are the weak points reviewers keep returning to, along with a mobile app they call basic.
Best suited for: An order-to-cash team on NetSuite, SAP or Sage Intacct whose bottleneck is unapplied cash rather than unsent reminders. The drawback is per-seat pricing from $650 a user a month, a two-seat minimum on Business Plus and no late fee or interest function.
2. Upflow
Best for analytics-led finance teams, five gross invoice value tiers from up to $10m to above $100m
What is it best for?
For a finance team that wants the collections numbers to be trustworthy before anything is automated on top of them, on Xero, QuickBooks Online, NetSuite or Sage Intacct.
- Fits
- B2B finance teams that manage by metric, quoted in five tiers by gross invoice value: Starter up to $10m, Grow up to $25m, Scale up to $50m, Accelerate up to $100m and Enterprise above $100m
- Regions
- New York head office, founded in Paris in 2018, around 50 staff, 500-plus customers in 30-plus countries
- Entry cost
- Not published. Upflow prints no figures and quotes five tiers by gross invoice value; its pricing FAQ mentions a free Discover plan for analytics, but it is not among the plan cards. Grow was last verified at $440 a month and Scale at $880.
- Rated
- 4.8 from 233 G2 reviews; 4.5 from 15 on Capterra · Xero App Store listing, 5.0 from 1
- Awards
- None found
- Runs on
- Xero, QuickBooks Online, NetSuite, Sage Intacct, Stripe Billing, Chargebee, Zuora, with Salesforce, Slack and Zapier cited
- Late fees and interest
- No, via your ERP only. Upflow’s own documentation covers applying late fees in NetSuite and there is no native computation
- Does best
- Collections analytics, with countback DSO against best possible DSO, collection effectiveness and an at-risk rate above 90 days
Upflow is an analytics layer over the ledger, and its metrics are the sharper half of this comparison: countback DSO set against best possible DSO, collection effectiveness, at-risk balances above 90 days, aging and billing-cohort cash forecasting, filtered by workflow, country or account manager, exported to CSV or scheduled out by email.
Discover, the free tier, shows all of that and chases nobody.
Its AI points at the ledger rather than at the customer. Promises to pay are detected from replies, dispute signals are surfaced, custom fields are filled in from what the ledger already holds, and cash application runs agentically. Nothing in that list decides to escalate an account.
Chasing itself is a multi-step workflow timed to invoice age, customer behavior and risk profile. Email, SMS and letters send by themselves; calls and tasks are steps a person has to work, and the automatic ones fire once a day, on business days only.
The portal takes card, ACH and direct debit payments, stores multiple methods for Autopay, and lets a customer set a promise to pay or raise a dispute without emailing anyone.
Limitations with Upflow. No native late fees, so fees go back to your ERP. No payment plans, only customer-initiated part payments and promises to pay. Automatic actions fire once a day, on business days only.
Sending through your own SMTP disables open and click tracking, and the QuickBooks link is one-way, polls every five minutes with no webhooks, lands payments in Undeposited Funds for manual reconciliation and carries a maximum of three text-only custom fields.
Reviewers call the reporting rigid when they want to slice data their own way, and Capterra records a lag before a customer’s card can be charged. Its last reported prices were $440 a month for Grow and $880 for Scale in 2024, now hidden, request a quote.
Best suited for: A finance team on Xero, QuickBooks Online, NetSuite or Sage Intacct that wants trustworthy collections numbers before it automates. The drawback is no native late fees and no payment plans, and its last reported price ($440 a month for Grow in 2024) is now hidden, so request a quote.
What “AI” resolves to in each product, action by action
Both vendors lead with the word. Underneath it the two products are doing different jobs, and the difference is whether the software decides, drafts, or only describes.
Kolleno: AI that acts
- Insights predict payment likelihood and keep credit scores live
- A copilot drafts email, SMS and call scripts for a human to approve
- An agent works a collections policy without being asked each time
- The agent adjusts credit limits and terms as it goes
- All three layers run on every subscription tier
Upflow: AI that reads
- Promise-to-pay detection reads the customer’s own reply
- Dispute signals are surfaced from the content of messages
- Custom fields are filled in from what the ledger already holds
- Cash application matches incoming payments agentically
The same word over two different jobs. Kolleno’s AI takes actions against an account. Upflow’s AI reads the ledger and answers questions about what it finds there.
Three verbs sort the whole category. Software that describes tells you what has already happened. Software that drafts prepares an action and waits for a person to release it. Software that decides takes the action and reports it afterwards.
Kolleno has all three, and the third is the one to test hardest, because an agent that adjusts a credit limit on its own is making a commercial decision your sales team will hear about before you do.
Ask what the agent is allowed to change without approval, what it must escalate, and what the audit trail looks like when it acts overnight.
Upflow has the first two and does not claim the third. Its AI reads: it finds a promise inside a reply, spots a dispute forming, matches a payment to an invoice. What it will not do is decide that an account should be escalated, and the vendor does not suggest otherwise.
The test to carry into either demo is the same. For every capability the vendor calls AI, ask whether it decides, drafts, or only describes. The answer usually reduces a long feature list to the two or three things that will change how the team actually works on Monday.
Neither tool raises a charge: what that leaves you doing
This is the rare pair where enforcement is off the table on both sides. Kolleno documents no late-fee or interest function at all, and Upflow points the job back to your ERP.
How much that costs you depends on where you invoice. A UK supplier can charge interest on an overdue business-to-business invoice at 8% a year above the Bank of England base rate under the Late Payment of Commercial Debts (Interest) Act 1998, plus a fixed sum by size of debt.
The rate moves, so the current figure has to be read off GOV.UK before you invoice for it, and an invoice left long enough spans two or three rates that each have to be applied to their own period.
In the United States there is no single statutory rate. The charge comes out of your own terms, so what the software would have to do is apply the percentage you contracted for, at the grain you contracted at, and post it to the ledger.
Neither of these platforms does that arithmetic. Upflow’s own documentation sends a NetSuite customer into NetSuite to apply the fee, which puts the calculation, the posting and the audit trail outside the tool that is running the chase. On a Xero or QuickBooks Online ledger it is simply a manual job.
- Kolleno
- No late fee, interest, surcharge or fixed-sum function appears in the feature pages or help center. The escalation path is the AI agent working a collections policy harder, not a charge
- Upflow
- Late fees are applied in the ERP. Upflow publishes a NetSuite article for it and computes nothing natively
- What that costs you
- The fee is the one lever a credit controller can trade. A charge on the customer’s ledger can be waived deliberately, in writing, in exchange for payment today. You cannot waive a charge that was never raised
- Where the work lands
- In the ERP or on a spreadsheet, run by the same person the software was bought to free up
The practical answer is that somebody works the charge out, raises it in the ledger, and remembers to stop it when the invoice settles. That is a recurring monthly task for one person, and it is worth pricing into either quote rather than discovering it in month two.
Cash application against collections analytics
Each vendor is deepest at something the other treats as a supporting feature, and reviewers of both name reporting as the sore point, which is worth reading closely on a page where analytics is half the purchase.
Kolleno reads bank files. BAI2, NACHA and ISO 20022 arrive over SFTP, remittance emails are parsed into suggested matches, every match is scored, and one-to-many, partials, credit-note offsets, foreign exchange differences and bank fees are handled, with NetSuite multi-currency journal entries written back.
Upflow matches too, with suggestions, rules and an agent that reconciles from an uploaded bank CSV, which is a lighter instrument for the same job.
Upflow reads the collections process instead. Countback DSO against best possible DSO is a measure most of this category does not report, and the gap between the two is the part of your delay that is actually yours to fix.
Reporting is where reviewers push back on Kolleno. They name reporting depth and navigation as the recurring weak points and call the mobile app basic, which is a pointed criticism of a platform bought to replace spreadsheets.
Upflow draws a version of the same complaint from the other direction: reviewers describe its reporting as rigid once they want to slice the data their own way, and Capterra records a lag before a customer’s card can be charged.
Neither product’s reporting is beyond argument, so both should be demonstrated against your own aged debtors rather than against the vendor’s sample data.
The split is clean enough to decide on. If unapplied cash sitting against open invoices is the bottleneck, Kolleno. If nobody in the business can say what the current DSO is, Upflow.
The ledger lists follow the same shape. Xero, QuickBooks Online, NetSuite and Sage Intacct run both. SAP S/4HANA and Business One, Dynamics 365, Workday, Oracle JD Edwards, Epicor, Infor and Odoo run Kolleno only.
Stripe Billing and Chargebee run Upflow only, which settles it for a subscription business whose invoices originate in the billing system rather than the ledger. On QuickBooks Online, Upflow’s connection is one-way, polls every five minutes rather than using webhooks, caps custom fields at three text-only fields, and lands payments in Undeposited Funds for somebody to reconcile.
What Kolleno costs by seat count
Kolleno is the only per-seat price of the two, so the bill is the rate multiplied by the seats, and the seat minimum sets the real floor rather than the headline rate.
| Plan | Monthly, per user | Annual, per user | Min users | Turnover and what it adds |
|---|---|---|---|---|
| BusinessPay | $650 | $545 | 1 | Under £1m and under 100 invoices. Portal, payment links, collections inbox, one Xero, QuickBooks Online or Sage Intacct account |
| Business Plus | $1,245 | $995 | 2 | £1m to £100m and under 300 invoices. Adds workflows, reporting and analytics, AI agent support and three hours of onboarding |
| Enterprise | Custom | Custom | 3 | £100m to £1bn. Adds NetSuite, SAP, Oracle and Business Central, multi-entity, six hours of training, 400 SMS and call credits |
| Enterprise Plus | Custom | Custom | 4 | Above £1bn. Adds custom ERP work, 24/7 support, a dedicated CSM and 600 SMS and call credits |
US dollars, displayed in the visitor’s currency on the vendor’s own pricing page, which also notes that integrations, customizations and add-ons may carry extra charges.
Change the figures below to match the quote you are given.
On 3 users at $650 each a month, Kolleno bills $1,950 a month. At the $545 annual-billing rate that is $1,635 a month, which saves $3,780 over twelve months.
The bill is the per-user rate multiplied by the seats, and the saving is the difference between the two rates across twelve months. Set the rate to $1,245 and $995 to price Business Plus, which starts at two seats. Integrations, customizations and add-ons sit outside these figures.
Read the minimum seat counts before the rates. BusinessPay starts at one seat, Business Plus at two and Enterprise Plus at four, so the cheapest possible Business Plus is $2,490 a month rather than the $1,245 the tier appears to cost.
Upflow tiers, and what a quote-only price means
Upflow prints nothing on any tier, so the table below carries its five quote-only tiers and the last reported figures for two of them. Seats are unlimited on every tier, and Upflow Payments is a $390 a month add-on.
| Tier | Monthly price | Band and what it is |
|---|---|---|
| Discover | Free | Mentioned in the pricing FAQ, not among the plan cards. Analytics and benchmarking only, no collection automation |
| Starter | Quote | Up to $10m gross invoice value, 40,000 new invoices a year |
| Grow | Quote | Up to $25m gross invoice value. Last reported at $440 a month in 2024, now quote-only |
| Scale | Quote | Up to $50m gross invoice value. Last reported at $880 a month in 2024, now quote-only |
| Accelerate | Quote | Up to $100m gross invoice value |
| Enterprise | Quote | Above $100m gross invoice value. Upflow spells this plan “Entreprise” |
Upflow prints no figures on its own pricing page and quotes five tiers by gross invoice value. The Grow and Scale rates are the last verified figures, not published prices, so treat them as a planning number and get a written quote.
Discover is the tier that gets misread. It is free, it is analytics and benchmarking only, it runs no collection automation, and Upflow states that it is not a trial.
It is mentioned in Upflow’s pricing FAQ but is not among the plan cards, which makes it a way to see your own numbers rather than a way to test the chasing before you commit to it.
Grow and Scale are last-verified third-party figures rather than published ones. The number you are quoted is shaped by what the salesperson learned about your invoice value on the call before it, so two companies in the same band do not necessarily pay the same, and there is nothing printed to hold the vendor to at renewal.
Ask for three things in writing: the band you sit in, the rate at each end of that band, and what happens to the price on the day your invoice value crosses into the next one.
Kolleno has a different gap: it prints a per-seat rate and then notes that integrations, customizations and add-ons may carry extra charges without saying what any of them cost.
Which accounts receivable software fits your use case?
Pick the row that matches the job in front of you. Each names the tool on this page that does that job and the reason from the sections above.
| Use case | Start with | Why |
|---|---|---|
| Unapplied cash sitting against open invoices | Kolleno | BAI2, NACHA and ISO 20022 files over SFTP, remittance parsing and match scoring |
| Nobody can say what the current DSO is | Upflow | Countback DSO against best possible DSO, collection effectiveness and an at-risk rate above 90 days |
| Customers who need payment plans | Kolleno | Weekly, monthly or bi-monthly splits with plan-linked automations; Upflow has none |
| A subscription business billing in Stripe Billing or Chargebee | Upflow | Only Upflow connects to them |
| A ledger on SAP, Dynamics 365, Workday or Odoo | Kolleno | Only Kolleno connects to them |
| A collections team that will keep adding people | Upflow | Seats are unlimited on every tier; Kolleno bills each seat, with a minimum by tier |
Common questions
Short answers on what each AI actually does, what the seats cost, what the missing price means, and what happens to an invoice that goes past its terms in either product.
Is Kolleno or Upflow better?
Neither is better outright. Kolleno suits an order-to-cash team that needs remittance parsing and bank-file cash application alongside collections, and whose AI question is how much it will let software decide. Upflow suits a finance team that wants countback DSO and collection effectiveness measured and trusted before anything is automated on top of them.
Does either tool’s AI act on its own?
Kolleno’s does. Its agent works a collections policy without being asked each time and adjusts credit limits and terms as it goes, on every subscription tier. Upflow’s AI reads rather than acts: it detects promises to pay, surfaces dispute signals, fills custom fields and matches payments, and it does not decide to escalate an account.
How much do Kolleno and Upflow cost?
Kolleno publishes $650 per user a month on BusinessPay, or $545 per user on annual billing, for turnover under £1m, with minimum seat counts of one, two, three and four by tier. Upflow prints no price and quotes five tiers by gross invoice value, with Grow last verified at $440 a month and Scale at $880.
Is Upflow’s free tier a trial?
No. Discover is analytics and benchmarking only, with no collection automation, and Upflow states it is not a trial. It is mentioned in the pricing FAQ but not among the plan cards, so it shows you your own numbers without letting you test the chasing.
Do Kolleno and Upflow integrate with Xero and QuickBooks?
Both connect to Xero, QuickBooks Online, NetSuite and Sage Intacct. Only Kolleno connects to SAP S/4HANA and Business One, Dynamics 365, Workday, Oracle JD Edwards, Epicor, Infor and Odoo. Only Upflow connects to Stripe Billing and Chargebee.
Which one applies late fees and statutory interest?
Neither. No feature page or help article documents a late fee or interest calculation in Kolleno. Upflow points the job back to the ERP and documents applying late fees in NetSuite, with no native computation of its own.
Which is stronger on cash application?
Kolleno. It parses remittance emails, connects to banks over SFTP, reads BAI2, NACHA and ISO 20022 files, scores matches and handles one-to-many, partials, credit-note offsets, foreign exchange and bank fees, writing NetSuite multi-currency journal entries back. Upflow matches with suggestions and rules and reconciles from an uploaded bank CSV.
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Sources
9 sources, checked by Julie Turnbridge on October 26, 2026
- G2 g2.com/products/kolleno/reviews
- Capterra capterra.com/p/227932/Kolleno
- Xero App Store listing apps.xero.com/uk/app/kolleno
- G2 g2.com/products/upflow-upflow/reviews
- Capterra capterra.com/p/193097/Upflow
- Xero App Store listing apps.xero.com/us/app/upflow
- Bank of England base rate bankofengland.co.uk/monetary-policy/the-interest-rate-ban...
- Late Payment of Commercial Debts (Interest) Act 1998 legislation.gov.uk/ukpga/1998/20/contents
- GOV.UK gov.uk/late-commercial-payments-interest-debt-recovery/ch...
Last updated October 19, 2026. Independent comparison; pricing and ratings from public sources and subject to change.
