Industries Hub
Last updated: June 25, 2026
Quick Answer
Contractors need payment processing that supports invoicing, mobile card acceptance at job sites, ACH payments for larger project amounts, and deposit collection. Square and Stripe cover most contractor payment needs with simple pricing and mobile apps. Helcim offers interchange-plus pricing that can reduce costs on higher monthly volumes. QuickBooks Payments integrates directly with QuickBooks bookkeeping. Authorize.net works well for contractors who want to keep their existing merchant account and add an invoicing or payment gateway layer.
Contractors — including general contractors, electricians, plumbers, HVAC technicians, landscapers, and other trade professionals — typically collect payments in stages: a deposit at project start, progress payments during the project, and a final payment upon completion. Payments occur at the job site, via invoice sent after work is complete, or increasingly through online payment links.
The payment mix is diverse: some clients pay by check (still common in residential contracting), others prefer card, and larger commercial clients often pay by ACH bank transfer. Contractors who can accept multiple payment types reduce friction and speed up cash collection.
Contractor payment requirements are more focused on workflow simplicity and cash flow speed than on sophisticated ecommerce or POS infrastructure.
Contractors typically have higher average transaction amounts than retail businesses — a $5,000 project payment is not unusual. This makes the per-transaction percentage fee significant in absolute dollar terms even at low transaction volume.
Flat-rate pricing (Square, Stripe) is simple and requires no monthly commitment — suitable for lower-volume contractors or those who invoice irregularly. Interchange-plus pricing (Helcim, Payline) reduces costs at moderate-to-high monthly volume and is particularly effective when large transactions are paid by standard consumer or business debit cards that qualify for lower interchange.
ACH processing ($0.25–$0.75 flat or 0.8%–1.0% capped) is meaningfully cheaper than card processing for large project payments. Enabling ACH for clients who are willing to pay by bank transfer can reduce total processing costs substantially.
Contractors should prioritize simplicity, mobile reliability, fast funding, and bookkeeping integration over feature depth.
Most contractors do not need a sophisticated payment platform — simplicity, mobile reliability, and invoicing quality are the highest-priority criteria.
Note: Residential contractors occasionally face chargebacks from customers who dispute project quality or claim work was not completed. Maintaining signed contracts, before/after photos, and communication records is important evidence for dispute responses — independent of which processor you use.
Square
Free POS app, reliable mobile card readers, built-in invoicing, no monthly fees, and next-day funding. Strong fit for independent contractors and small crews.
Stripe
Payment links and invoicing with no monthly fees. Strong API for custom project management integrations and international contractor work.
Helcim
Interchange-plus pricing, no monthly fees, invoicing tools, and ACH support. Best for contractors processing $10K+ per month who want to reduce effective rates.
QuickBooks Payments
Native QuickBooks integration for contractors using QuickBooks for job costing. Eliminates manual bookkeeping reconciliation for payments.
Authorize.net
Mature gateway with ACH support and broad integrations. Best for contractors with an existing merchant account adding invoicing and payment link capability.
Fit signals are based on publicly available information. Verify current rates and terms directly with each provider before applying.
Square is the most commonly used payment app among independent contractors for its free POS app, reliable Bluetooth card readers, and built-in invoicing. Stripe's invoicing and payment links are strong for contractors who bill primarily by invoice rather than in-person. QuickBooks Payments works best for contractors already using QuickBooks for bookkeeping. The right fit depends on how you collect most of your payments — in-person, by invoice, or via ACH.
Mobile card readers connect via Bluetooth to a smartphone or tablet app and accept chip, tap, and swipe payments. Square, Stripe, and Helcim all offer mobile card readers. The reader and app together process the transaction — you typically need a cellular or Wi-Fi connection for authorization, though some readers support offline mode for low-risk environments. Test your setup before arriving at a job site where you will be collecting a significant payment.
Yes — most major processors support ACH bank transfer payments from invoice payment links. Square, Stripe, Helcim, and Authorize.net all offer ACH. ACH processing fees are typically $0.25–$0.75 per transaction flat or 0.8%–1.0% capped, significantly lower than card rates. For large project payments, ACH can reduce processing costs substantially. Note that ACH transfers take 1–5 business days to settle, compared to 1–2 business days for card payments.
Most mobile payment and invoicing platforms support partial payment collection. You can send a deposit invoice for a percentage of the project total (e.g., 30% or 50%) and a separate balance invoice for completion. Square Invoices, Stripe Invoices, and QuickBooks Payments all support this workflow. Some also allow milestone-based payment schedules tied to project stages.
If a client initiates a chargeback through their card issuer, you will be notified by your processor with a response deadline (typically 7–30 days). Your evidence should include: a signed contract or proposal, a scope of work, before-and-after photos, communication records (texts, emails), and any client sign-off documentation. Processors with organized dispute response portals make this evidence submission process easier. Maintaining good project documentation independently of your payment processor is the best chargeback defense.
It can — contractors often process fewer, larger transactions than retail businesses. A 2.9% fee on a $5,000 project payment is $145. Across 20 similar projects per month, that is $2,900 per month in processing fees. At this volume, switching from flat-rate to interchange-plus pricing could reduce costs by $500–$1,000+ per month depending on your card mix. Use the Cost Calculator to model the difference for your volume and average transaction.
Most major processors deposit funds within 1–2 business days for card payments. Square and Stripe both offer next-day funding on standard accounts and instant deposit for a small additional fee (1.5%–1.75% of the transfer amount). ACH payments take 1–5 business days to settle. Same-day card funding is available on some accounts. If cash flow is tight, evaluate next-day or same-day funding options when comparing processors.
Run a Fit Check
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Cost Calculator
Model your processing costs including ACH vs card acceptance.
Stripe vs Square
Compare the two most common processors for independent contractors.
ACH Payment — Glossary
How ACH bank transfers work and why they can reduce costs for large payments.
Next-Day Funding — Glossary
How next-day funding works and what processors offer it.
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