Index › Receivables and billing › B2B payment acceptance › Small business › September 2026 Edition

B2B payment acceptance for small business buyers

Asked as “B2B payment acceptance platform”, and as “accounts receivable payment portal”, on behalf of a small B2B company. 43 first choices recorded across the direct, paraphrase, budget and scale prompts, twelve models each.

Standing

Helcim

Contested

35% of first choices, contested.

ShowinginAll 41 categories in the September 2026 Edition →

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment; they sit side by side and are never added together.

Small business

Helcim35%ContestedThis page Mid-market

Helcim17%ContestedStanding →Enterprise

HighRadius28%ContestedStanding →

01The standing

Share is the count of first choices across the direct, paraphrase, budget and scale prompts, over all twelve models, for a small B2B company. Ordered by share.

ProductFirst-choice shareNegative rateLabelsQuadrant

Helcim0%32endorsed leader

Melio11%38accepted challenger

BILL25%40criticized challenger

Nickel0%16accepted challenger

Stripe26%42criticized challenger

Square29%17criticized challenger

PayPal35%17criticized challenger

Show the three products at 0%, ordered by negative rate

QuickBooks Payments12%17accepted challenger

Plooto8%13accepted challenger

Wise Business0%10accepted challenger

Bars are the share of first choices, 0 to 100Every product with at least 10 labels here. Every product name links to its vendor page.

Head to head

Helcim vs Versapay Helcim vs EBizCharge Versapay vs EBizCharge

Recommended versus criticized

Every product with at least 10 labels here, on both axes. The 30% line names a quadrant, not the verdict above: that one needs more than 40%.

Criticized challengerCriticized default

Negative label rate →

Accepted challengerEndorsed leader

0%First-choice share → · lines at 30% share and 25% negative50%

Key

Helcim35%

Melio14%

BILL9%

Nickel9%

Stripe7%

Square5%

PayPal5%

QuickBooks Payments0%

Plooto0%

Wise Business0%

02What they warned about

Zero of twelve models held their first choice under the paraphrase. Claude Haiku 4.5, GPT-5.4 mini, Gemini 3.5 Flash, Perplexity Sonar, Grok 4.1 Fast, Mistral Small, DeepSeek V4 Flash, Llama 4 Maverick, Qwen 3.7 Flash, Kimi K2, GLM 4.7 FlashX and MiniMax M2.5 changed. A high negative share on a product with few labels is a warning. A low share on a product with many labels is salience, not sentiment.

BILL

25%

10 of 40 labels negative · 7 of 12 models · 3 hard negative

“"the worst payment provider our business has ever worked with"; poor customer service and unresponsive support” MiniMax M2.5, negative prompt

Stripe

26%

11 of 42 labels negative · 7 of 12 models · 1 hard negative

“Complaints about high fees ... Funds holding issues with abrupt account holds” MiniMax M2.5, negative prompt

Melio

11%

4 of 38 labels negative · 4 of 12 models

“Platforms like Melio are highly popular and integrate well with accounting software, but ... complaints about the platform holding funds.” Gemini 3.5 Flash, negative prompt

PayPal

35%

6 of 17 labels negative · 4 of 12 models

“**PayPal Business**: convenient, but often carries higher fees than bank-transfer-based options, so it can be expensive as a primary B2B rail.” Perplexity Sonar, negative prompt

03What they cite

Citations exist only for the models that return a source list: twelve of the twelve in this edition, and all six flagship models on the expanded tier.

Sites the answers cite

65 of 72 answers in this category came back with a source list, from 12 of 12 models: citations where the model returns them, or the search results it consulted. 6 of those lists are Google grounding redirects that name no site and are left out of the counts. 878 links across 234 sites, every framing counted. Ranked by the number of answers carrying the site or page.

factura.ai

vendor site · Factura.ai37 answers · 37 citations · 10 models

fitsmallbusiness.com

32 answers · 44 citations · 10 models

gartner.com

29 answers · 29 citations · 9 models

techrepublic.com

26 answers · 33 citations · 9 models

connectpay.com

vendor site · ConnectPay18 answers · 19 citations · 8 models

wise.com

17 answers · 24 citations · 6 models

highradius.com

vendor site · HighRadius17 answers · 17 citations · 8 models

stripe.com

vendor site · Stripe15 answers · 20 citations · 7 models

bill.com

vendor site · BILL15 answers · 17 citations · 5 models

nerdwallet.com

14 answers · 20 citations · 8 models

wizcommerce.com

14 answers · 14 citations · 7 models

learn.g2.com

13 answers · 15 citations · 9 models

Pages the answers cite

The ten pages named in the most answers, by full address. A page here is one the models returned with a recommendation, not one the index endorses.

factura.ai/b2b-payment-platforms-small-businesses

37 answers · 10 models

fitsmallbusiness.com/best-b2b-payment-solutions

31 answers · 10 models

gartner.com/reviews/market/b2b-payments-software

29 answers · 9 models

techrepublic.com/article/best-b2b-payment-processors

26 answers · 9 models

connectpay.com/blog/b2b-payment-platforms

17 answers · 8 models

highradius.com/resources/Blog/best-b2b-payment-platforms

14 answers · 7 models

wizcommerce.com/blog/best-b2b-payment-platforms

13 answers · 7 models

alltopbusiness.com/best-b2b-payment-software

12 answers · 8 models

rillion.com/blog/best-b2b-payment-platforms

11 answers · 6 models

triple-a.io/blog/best-b2b-payment-solutions

11 answers · 7 models

04How they answered

Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.

ModelDirect“What is the best B2B payment acceptance platform for a small B2B company?”Paraphrase“Which accounts receivable payment portal would you recommend to a small business that sells to other businesses?”Comparative“What are the top B2B payment platforms for a small team and how do they differ?”Budget-constrained“What is the best B2B payment acceptance platform for a small company with a tight budget?”Scale-constrained“We are a 30 person company evaluating a B2B payment acceptance platform. What should we look at?”Negative“Which B2B payment platforms should a small business avoid or be cautious about?”

Claude Haiku 4.5Nickel

Five alternatives

BILL, Melio, PayPal, Square, Stripe

no first choiceChangedno first choicePayPal, Square

Two alternatives

BILL, Melio

no first choicenothing named

GPT-5.4 miniStripe

Two alternatives

BILL, EBizCharge

Stripe InvoicingChanged

Two alternatives

BILL, QuickBooks Payments

Melio

Three alternatives

BILL, Brex, Ramp

against: TipaltiHelcim

One alternative

Square

against: Paystandno first choicenothing named

Gemini 3.5 FlashMelio

Five alternatives

Helcim, Nickel, QuickBooks Payments, Resolve Pay, Stripe

Bill360Changed

Four alternatives

BILL, Chaser, Nickel, Upflow

Melio

Four alternatives

Airwallex, BILL, Stripe, Wise Business

Helcim

Three alternatives

Forwardly, Melio, Nickel

against: PayPal, Stripeno first choice

Four alternatives

EBizCharge, Helcim, Melio, Paystand

against: Stripe, Stripe Billingagainst: BILL, Bank of America Merchant Services, Fiserv, Global Payments, Melio, PayPal, Square, Stripe, TSYS, Worldpay

Perplexity SonarHelcim, Stripe

Two alternatives

Melio, Wise Business

against: PayPalBILL Accounts ReceivableChanged

Three alternatives

Bill360, Monk, Upflow

BILL, Stripe

Four alternatives

Melio, PayPal, QuickBooks Payments, Wise Business

Melio, PayPal

One alternative

Helcim

against: Stripeno first choiceagainst: PayPal, Payoneer, Stripe

Grok 4.1 FastHelcim

Two alternatives

Melio, Stripe

against: BILLBILLChanged

Three alternatives

Nickel, QuickBooks Payments, Stripe Invoicing

Helcim

Four alternatives

BILL, Melio, QuickBooks Payments, Stripe

against: Authorize.net, PlootoMelio

One alternative

Helcim

against: BILL, Square Invoices, Stax, Stripe, Waveno first choiceagainst: Authorize.net, BILL, Global Payments, Melio, Stripe

Mistral SmallHelcim

Two alternatives

QuickBooks Payments, Stripe

BILL, Bill360Changed

One alternative

Nickel

Melio

Five alternatives

BILL, Helcim, QuickBooks Payments, Stripe, Wise Business

Helcim, Meliono first choiceagainst: AvidXchange, BILL, Razorpay, Worldpay

DeepSeek V4 FlashHelcim

Four alternatives

BILL, Melio, Square, Stripe

BILLChanged

Three alternatives

Paystand, QuickBooks Payments, Stripe Invoicing

against: Billtrust, Monk, VersapayMelio

Six alternatives

BILL, Plooto, QuickBooks Payments / Bill Pay, Ramp, Stripe, Wise Business

Helcim

Two alternatives

Melio, Square

no first choiceagainst: BILL, Melio, PayPal, QuickBooks Payments, Square, Stripe

Llama 4 MaverickMelio

Three alternatives

Factura, Helcim, Plooto

NickelChanged

Three alternatives

BILL, FreshBooks, Zoho Books

Helcim

Seven alternatives

Authorize.net, ConnectPay, PayPal, PaymentCloud, QuickBooks Payments, Stripe, Wise Business

Helcim

Two alternatives

Melio, Plooto

no first choiceagainst: Traditional banks

Qwen 3.7 FlashHelcim

Three alternatives

Plooto, Square Invoices, Stripe

against: PayPalBILL, GavitiChanged

One alternative

Bill360

BILL, Melio

Three alternatives

Helcim, QuickBooks Payments, Stripe

Nickel

Two alternatives

Helcim, Melio

against: Stripeno first choiceagainst: Airwallex, BILL, Checkout.com, QuickBooks Payments, Razorpay, Sage

Kimi K2Helcim, Nickel

Two alternatives

QuickBooks Payments, Stripe

against: BILL, MelioMelioChanged

One alternative

BILL

Melio

Four alternatives

BILL, Helcim, Stripe, Wise Business

Helcim

Three alternatives

Melio, Plooto, QuickBooks Payments

against: Square, Stripeno first choiceagainst: Stripe Checkoutagainst: Adyen, AvidXchange, Clover, Global Payments, Leaders Merchant Services, Square

GLM 4.7 FlashXHelcim

Four alternatives

Melio, Nickel, Plooto, Stripe

against: AdyenStripe InvoicingChanged

Five alternatives

BILL AP/AR, Chaser, Invoiced, Monk, PayPal Invoicing

Square, Stripe

Three alternatives

Helcim, Melio, Wise Business

Helcim

Three alternatives

National Processing, Payment Depot, Stripe

no first choicenothing named

MiniMax M2.5Helcim

Four alternatives

Authorize.net, Plooto, QuickBooks Payments, Stripe

Bill360Changed

Three alternatives

BILL, Nickel, Zenskar

BILL

Four alternatives

Helcim, Melio, Plooto, Stripe

Square, Stripe

Four alternatives

Authorize.net, GoCardless, PayPal, Wave

against: BILL, Tipaltino first choiceagainst: BILL, Razorpay, Square, Stripe

Bold is the first choiceAlternatives are counted; the count opens them.What the answer argued against

05The record

One row per call: the version string exactly as returned, whether the model searched, sources cited, and latency. Full answer text is in the free responses file. Download the record

Seventy-two rows: every prompt, every model, every answer.

Prompt	Model	Version string	Time (UTC)	Searched	Sources	Latency
Direct recommendation	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 20:51	yes	9	8 s
Direct recommendation	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 20:46	yes	3	5 s
Direct recommendation	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 21:53	yes	21	74 s
Direct recommendation	Perplexity Sonar	`sonar`	2026-09-17 18:34	yes	20	6 s
Direct recommendation	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 18:22	yes	37	18 s
Direct recommendation	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 21:03	yes	5	4 s
Direct recommendation	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 20:37	yes	23	18 s
Direct recommendation	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 18:02	yes	5	2 s
Direct recommendation	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 20:07	yes	5	19 s
Direct recommendation	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 20:13	yes	13	34 s
Direct recommendation	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 19:52	yes	31	197 s
Direct recommendation	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 20:43	yes	12	27 s
Paraphrase	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 18:54	no	0	5 s
Paraphrase	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 18:14	yes	3	4 s
Paraphrase	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 21:15	yes	14	147 s
Paraphrase	Perplexity Sonar	`sonar`	2026-09-17 18:53	yes	18	5 s
Paraphrase	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 18:10	yes	40	20 s
Paraphrase	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 18:41	yes	5	4 s
Paraphrase	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 19:25	yes	29	26 s
Paraphrase	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 19:36	yes	5	3 s
Paraphrase	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 19:55	yes	9	34 s
Paraphrase	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 20:12	yes	10	35 s
Paraphrase	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 18:34	yes	13	38 s
Paraphrase	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 18:34	yes	5	16 s
Comparative	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 18:19	yes	9	7 s
Comparative	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 18:14	yes	5	12 s
Comparative	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 18:57	yes	23	24 s
Comparative	Perplexity Sonar	`sonar`	2026-09-17 18:32	yes	19	8 s
Comparative	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 18:40	yes	28	18 s
Comparative	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 20:51	yes	5	7 s
Comparative	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 18:52	yes	19	19 s
Comparative	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 20:33	yes	5	4 s
Comparative	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 20:59	yes	5	24 s
Comparative	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 19:52	yes	10	28 s
Comparative	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 18:01	yes	28	92 s
Comparative	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 19:12	yes	22	66 s
Budget constrained	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 20:43	yes	9	7 s
Budget constrained	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 20:07	yes	3	6 s
Budget constrained	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 18:55	yes	24	25 s
Budget constrained	Perplexity Sonar	`sonar`	2026-09-17 19:27	yes	20	6 s
Budget constrained	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 19:45	yes	39	17 s
Budget constrained	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 19:22	yes	5	5 s
Budget constrained	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 19:47	yes	16	24 s
Budget constrained	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 20:17	yes	5	3 s
Budget constrained	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 19:58	yes	10	22 s
Budget constrained	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 19:31	yes	9	33 s
Budget constrained	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 19:31	yes	24	40 s
Budget constrained	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 20:08	no	0	53 s
Scale constrained	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 18:16	no	0	8 s
Scale constrained	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 18:15	no	0	8 s
Scale constrained	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 21:16	yes	6	162 s
Scale constrained	Perplexity Sonar	`sonar`	2026-09-17 20:43	yes	20	7 s
Scale constrained	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 18:07	yes	11	9 s
Scale constrained	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 18:01	no	0	7 s
Scale constrained	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 20:18	yes	24	26 s
Scale constrained	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 20:08	yes	5	3 s
Scale constrained	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 18:54	no	0	32 s
Scale constrained	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 20:16	yes	10	52 s
Scale constrained	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 20:09	yes	14	32 s
Scale constrained	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 20:19	no	0	47 s
Negative framing	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 21:06	yes	18	9 s
Negative framing	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 18:57	yes	3	7 s
Negative framing	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 19:09	yes	24	260 s
Negative framing	Perplexity Sonar	`sonar`	2026-09-17 19:56	yes	20	7 s
Negative framing	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 18:31	yes	42	23 s
Negative framing	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 20:20	yes	10	7 s
Negative framing	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 21:00	yes	28	24 s
Negative framing	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 18:17	yes	5	5 s
Negative framing	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 19:10	yes	10	47 s
Negative framing	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 17:54	yes	30	37 s
Negative framing	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 21:07	yes	15	286 s
Negative framing	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 18:57	yes	18	37 s

Normalization in this category

Every judgment call made between the raw labels and the numbers above, listed so it is visible and reversible.

Category-scoped readings

Bill.com read as BILL

Bill.com (B2B payments & AP/AR) read as BILL

Bill.com (BILL) read as BILL

Intuit QuickBooks read as QuickBooks Payments

Unresolved, counted raw

BILL Accounts Receivable

Bank of America Merchant Services

Clover

Factura

Leaders Merchant Services

National Processing

Payment Depot

QuickBooks Payments / Bill Pay

Stripe Checkout

TSYS

Discontinued, still offered

No shut-down product was recommended here.

B2B payment acceptance for small business buyers

By buyer segment

01The standing

Recommended versus criticized

02What they warned about

03What they cite

Sites the answers cite

Pages the answers cite

04How they answered

05The record

Normalization in this category

Also in receivables and billing