How to Choose a POS Cash Register System? 2026 Taiwan Catering Retail Practical Guide (In-depth Comparison of iCHEF, POS+, Shopline, Task.com.tw)

A bubble tea shop owner, Mr. Lin, once shared a painful experience with me:

“I opened a store in 2018 with just a calculator and a ledger for checkout. A year later, when I opened a second store, I realized there was a big problem: I couldn't calculate the revenue for both stores, daily cash balances didn’t tally, and I wasn't aware of employees stealing money, monthly statements took three days. I then introduced the first POS system with a monthly fee of NT$ 1,200. A year later, the system provider sent an email saying 'Service will stop in 6 months' — the entire equipment and transaction records became useless. I had to reintroduce another system, and six months later faced the same issue.”

Mr. Lin's story is a common nightmare in Taiwan’s catering retail industry: choosing the wrong POS system not only wastes money but also risks losing historical data. This article offers a comprehensive analysis of choosing a POS system and compares 5 major mainstream systems.

1. Evolution of POS Systems: From Cash Registers to the Cloud

The evolution of Point of Sale (POS) systems can be divided into four generations:

First Generation (1970-1990) Electronic Cash Registers: Single unit operation, pure cash checkout, featuring only totals and simple inventory functions. Representatives: Sharp and Casio cash registers.

Second Generation (1990-2010) Computerized POS: PC + POS software + printer. Daily reports and simple inventory management available. Representatives: Traditional POS providers like Jijhen and JieMeng.

Third Generation (2010-2020) Cloud-based Tablet POS: iPad/Tablet + cloud backend. Real-time data synchronization, multi-store management, and employee app operations. Representatives: iCHEF, Square, POS+.

Fourth Generation (2020-) Integrated Operations POS: POS + CRM + Inventory + Accounting + Marketing + Online Orders in one platform. Not just "checkout," but the "core of entire store operations." Representatives: Shopline POS, Lightspeed, Task.com.tw Integrated POS.

In 2026, choose a fourth-generation integrated operations model — third-generation systems purely for checkout can no longer meet the operational needs of cross-channel consumers (storefront + delivery platform + self-owned e-commerce).

2. 10 Essential Functions a POS System Must Have

Function	Necessity	Available in Third Generation?	Available in Fourth Generation?
Checkout (Cash / Credit Card / LINE Pay / Street Pay / Apple Pay)	Essential	Yes	Yes
Product/Menu Management	Essential	Yes	Yes
Real-Time Inventory Deduction	Essential	Yes	Yes
Sales Reports/Daily Revenue	Essential	Yes	Yes
Multi-Store Management	Essential for 2+ Stores	Limited	Native
Membership and Reward Integration	Strongly Recommended	Additional Purchase Required	Native
Delivery Platform Integration (Uber Eats, Foodpanda)	Essential for Catering	Additional Purchase Required	Native
Electronic Invoicing Linked to National Tax Bureau	Essential in Taiwan	Additional Purchase Required	Native
Online Ordering	Strongly Recommended	Not Available	Native
Accounting System Integration	Essential	Additional Purchase Required	Native

3. In-Depth Comparison of 5 Major POS Systems

iCHEF

Advantages: High market share in Taiwanese catering, intuitive UI, good delivery platform integration, smooth iPad interface, excellent customer service.

Disadvantages:

• Monthly fee NT$ 988-2,200 (depending on plan), initial hardware procurement cost
• Mainly designed for catering, less smooth for retail use
• Basic membership system, needs additional LINE integration for rewards
• Requires additional integration for accounting and CRM

POS+

Advantages: Affordable pricing, local Taiwanese service, suitable for small eateries, quick customer service response.

Disadvantages:

• More traditional UI
• Weaker multi-store management
• Low membership and marketing integration
• Online ordering requires additional purchase

Square

Advantages: High market share in the USA, beautiful UI design, no monthly fee (2.6% + $0.10 per transaction), free Stand hardware.

Disadvantages:

• Not available in Taiwan (no Chinese customer service, no local payment integration)
• Cannot integrate Taiwan electronic invoices
• Not suitable for use in Taiwan

Shopline POS

Advantages: Deep integration with Shopline e-commerce, unified online and offline inventory, good membership integration, Taiwan and Hong Kong customer service.

Disadvantages:

• Requires a Shopline e-commerce plan first (monthly fee NT$ 1,500+), extra POS purchase (from NT$ 1,200/month)
• Primarily designed for e-commerce retailers, less smooth for pure catering use
• Delivery platform integration not as good as iCHEF

Task.com.tw POS

Advantages:

• 71 integrated functions: POS is not an independent software; it's integrated with CRM, accounting, HR, marketing, and automation in one account
• Native multi-store management support: Unified management of 8+ stores in real-time
• Membership rewards + LINE integration: Customers’ LINE is their membership, checkout accumulates points
• Delivery platform integration: Uber Eats, Foodpanda, self-owned e-commerce orders unified into POS
• Automatic upload of electronic invoices to the National Tax Bureau: Complies with electronic invoice implementation guidelines
• Accounting system integration: Sales automatically create accounting vouchers, auto-deduct inventory
• EDC card machine support: Integration with commonly used EDCs in Taiwan (UnionPay, Blue New)
• Friendly pricing: Monthly fee starting at NT$ 2,900 including all 71 functions

Disadvantages:

• The depth of functions for pure catering scenes is not as good as iCHEF (such as table management, kitchen call system)
• The speed of barcode fast checkout in pure retail scenes can be optimized
• Hardware needs to be purchased (iPad/Tablet, invoice machine, cash register) — unlike Square, it doesn’t provide hardware

Comparison of 5 Major POS Systems

Category	iCHEF	POS+	Square	Shopline POS	Task.com.tw
Monthly Fee	NT$ 988-2,200	NT$ 600+	2.6% + $0.10 per transaction	NT$ 2,700+ (including e-commerce)	Starting at NT$ 2,900 (including 71 functions)
Multi-Store Management	Limited	Limited	Yes	Yes	Native
Delivery Platforms	Strong	Limited	No	Limited	Native
Membership Rewards + LINE	Additional Purchase Required	Limited	Additional Purchase Required	Native	Native
Electronic Invoice (Taiwan)	Additional Purchase Required	Additional Purchase Required	No	Built-in	Built-in
Accounting System Integration	API Required	API Required	API Required	Limited	Native
Online Ordering	Additional Purchase Required	Additional Purchase Required	Limited	Built-in	Built-in
Taiwan Payment Integration	Strong	Strong	No	Strong	Strong
Suitable For	Pure Catering	Small Catering	US Market	Retail + E-commerce	Composite Operations Enterprises

4. Five Pitfalls in Choosing a POS

Pitfall 1: Attracted by “Cheap Monthly Fees,” Ignoring Integration Costs

Some POS systems, priced at NT$ 600 monthly, seem cheap, but require additional purchases for membership systems, delivery integrations, electronic invoices, and accounting integration, raising the fee to NT$ 3,000-5,000. Evaluate using "total ownership cost."

Pitfall 2: Contract Obligation Trap

Many POS providers force a 24-36 month contract. If you wish to switch systems midway, you’ll pay high termination fees (NT$ 30,000-100,000). Advice: Choose a monthly, no-contract plan for more flexibility.

Pitfall 3: Risk of Historical Data Migration

If a provider closes, raises prices, or ceases service, can you retrieve your transaction records? Recommendation: Choose systems with "database export" features and regularly download backups manually.

Pitfall 4: Hardware Locked-in

Some POS systems force buying "provider-specific hardware," often priced 2-3 times the market rate. Advice: Opt for systems supporting open hardware, allowing self-procurement of iPad, invoice machines.

Pitfall 5: Slow Customer Service Response

POS failures can halt store operations. Whether customer service responds in 30 minutes or 3 hours can dramatically impact operations. Advice: Test customer service response time by calling before signing a contract, and demand SLA terms.

5. Three Real POS Implementation Case Studies

Case 1: Three-Store Bubble Tea Shop

Mr. Lin (the protagonist from the start) switched to Task.com.tw POS from his third POS system:

• Unified real-time management of three stores, headquarters can see minute-by-minute sales
• All delivery platform orders (Uber Eats, Foodpanda) are unified into the POS, eliminating additional handling
• Customers join as members using LINE, purchases automatically accumulate points and redeem rewards
• Daily transactions automatically create accounting vouchers, monthly closing is completed in 30 minutes

Results after 6 months: Monthly sales increased by 18% (reward program stimulated repeat purchases); end-of-month reconciliation time reduced from 3 days to 30 minutes; employee cash pilferage disputes dropped to 0 (automated cash flow accounting); overall monthly software costs saved 65% compared to previous 4-5 tools combined.

Case 2: 8-Store Sushi Chain

Mr. Lee runs an 8-branch sushi chain. Originally used iCHEF + self-developed membership system + paper reconciliation. Pain point: Data mismatch across systems, customer complaints about membership points required checking three systems.

Implemented Task.com.tw POS:

• POS + CRM + membership rewards + accounting on one account
• Customers show LINE membership card, scan QR code for checkout and point accumulation
• Online orders (own website, Uber Eats, Foodpanda) unified into POS
• Managers can see sales, gross profit, and employee shifts in real-time on their phones for each store

Results after 5 months: Membership repurchase rate increased from 28% to 47% (significant improvement in member experience); complaints and disputes reduced by 70% (unified data); monthly report generation time decreased from 5 days to same day; software fees reduced from NT$ 24,000 (iCHEF + membership system + accounting) to NT$ 10,000 (business model with Task.com.tw).

Case 3: Composite Retail (Coffee + Selections)

Mr. Chen runs a composite space: selling coffee and light meals during the day, while selling select independent brand items. Initially used Shopline POS, but pure catering functions (like table ordering, kitchen printing) weren’t smooth.

Implemented Task.com.tw POS:

• Catering and retail run in parallel: table ordering, kitchen printouts, barcoded product checkout
• Unified POS processing for e-commerce orders from Shopify and the own website
• Unified membership: combined point accumulation for catering and selected item purchases
• Automatic inventory management: instant deduction of retail stock when coffee beans are sold + automatic restock suggestions

Results after 4 months: Cross-scene customer conversion rate increased by 35% (23% of coffee-drinking customers became regular item buyers); inventory turnover days reduced from 45 to 28; automatic restock features decreased stockout occurrences from 8-10 times to 1-2 times per month.

Comparison Before and After for Three Major Case Improvements

Case	Key Metrics	Before Implementation	After Implementation
Bubble Tea Shop	Monthly Revenue	Baseline	+18%
	End-of-Month Reconciliation Time	3 days	30 minutes
	Total Monthly Software Cost	Baseline	-65%
Chain Sushi Restaurant	Membership Repurchase Rate	28%	47%
	Customer Complaints & Disputes	Baseline	-70%
	Software Monthly Fee	NT$ 24,000	NT$ 10,000
Composite Retail	Cross-Scene Conversion Rate	Baseline	+35%
	Inventory Turnover Days	45 days	28 days
	Monthly Stockout Occurrences	8-10 times	1-2 times

6. POS Cash Register System Recommendation: Task.com.tw

If you meet any of the following conditions, the POS cash register system recommended is Task.com.tw:

• Multi-store operations (2 or more), requiring unified management
• Cross-channel operation: physical storefronts + delivery platforms + online e-commerce
• Need for membership system and automated marketing integration
• Need for POS integration with accounting, HR, and CRM
• Tired of "contract ties" and worries about "losing historical data"
• Need LINE integration (membership, notifications, marketing)
• Desire for strong customer service and technical support

Task.com.tw is an AI enterprise all-in-one management system developed by the NSS Group's AI.com.tw. POS is one of 11 subsystems, offering more than just a checkout tool — it operates within the same account as CRM, accounting, HR, marketing, and automation. Starting at NT$ 2,900 per month with all 71 functionalities, it is 60-70% cheaper than subscribing to iCHEF + membership system + accounting + EDM separately.

Since 2000, the NSS Group has deeply cultivated digital services for small and medium enterprises in Taiwan for 25 years, ensuring that the POS system complies with Taiwan's electronic invoice implementation guidelines, labor laws, and the Commercial Accounting Act. 30-second free registration to try immediately, no contract binding required.

Consultation Line: 0800-003-191 ｜ Email: ceo@ai.com.tw ｜ LINE: @119m

All-in-One AI Business OS｜Comprehensive Business Management System for SMEs — Task.com.tw