Buyer's Guide · Singapore
Singapore Billing and Invoicing Software in 2026
By Rajat Gupta, Founder & Lead Reviewer
Also available in:
This guide ranks the 20 best Billing and Invoicing Software options overall, as of 2026, ordered by SpotScore — a composite of ratings, verified reviews, and feature coverage. It is paired with a Singapore buying guide covering the regulations and criteria that matter most for Singapore teams, so the ranking can be weighed against what Singapore specifically requires.
Top Billing and Invoicing Software Overall: Quick Comparison
Ranked by SpotScore across the global market — a composite of ratings, reviews, and feature coverage
| # | Product | SpotScore | Rating | Pricing model |
|---|---|---|---|---|
| 1 | Invoice2go | 9.8 | 4.5/5 (53) | Free Trial |
| 2 | BillQuick | 9.4 | 4.1/5 (90) | Paid |
| 3 | Invoicera | 9.4 | 4.5/5 (25) | Freemium |
| 4 | Hiveage | 9.3 | 4.6/5 (6) | Freemium |
| 5 | Zoho Invoice | 9.3 | 4.8/5 (292) | Freemium |
| 6 | Lago | 9.2 | 4.6/5 | Free |
| 7 | Aiwyn | 9.2 | 4.6/5 | Paid |
| 8 | Moon Invoice | 9.2 | 5.0/5 (77) | Free Trial |
| 9 | Invoice Home | 9.2 | 5.0/5 (119) | Free Trial |
| 10 | Zervant | 9.1 | — | Freemium |
| 11 | OneBill | 9.1 | 4.7/5 (3) | Paid |
| 12 | Invoicely | 9.1 | 4.4/5 (37) | Freemium |
| 13 | Invoiced | 9.1 | 4.8/5 (298) | Free Trial |
| 14 | Invoice Ninja | 9.1 | 4.9/5 (41) | Freemium |
| 15 | AccountSight | 9.1 | 4.8/5 (68) | Freemium |
| 16 | Digits | 9.0 | 4.5/5 | Paid |
| 17 | Square Invoices | 9.0 | 4.9/5 (126) | Freemium |
| 18 | InvoiceBerry | 9.0 | 4.8/5 (46) | Free Trial |
| 19 | SherpaDesk | 8.9 | 4.4/5 (29) | Freemium |
| 20 | GetMyInvoices.com | 8.8 | 4.6/5 (30) | Free Trial |
1. Invoice2go
Streamline your billing with Invoice2go.
- SpotScore
- 9.8/10
- User rating
- Pricing model
- Free Trial
Invoice2go is a mobile-first invoicing app for solo practitioners, tradespeople, and small service businesses who create and send invoices from a smartphone. It covers standard invoicing, payment acceptance via PayPal and credit cards, and basic revenue reporting. The base plan caps client and invoice counts, which may force an upgrade earlier than expected for growing businesses, and it lacks mileage tracking or automated payment notifications.
2. BillQuick
Transform your business with efficient billing software.
- SpotScore
- 9.4/10
- User rating
- Pricing model
- Paid
BillQuick is the affordable billing and invoicing software that turns your business into an organized enterprise. With a sweet interface, built-in embedded accounting, integrated credit card processing, easy setup and automatic backups.It's easy to use, easy to learn and it comes with all the tools you need to run a professional business on the internet.
3. Invoicera
Streamline your business finances with ease.
- SpotScore
- 9.4/10
- User rating
- Pricing model
- Freemium
Invoicera is a cloud-based billing and invoicing software, which helps in online transaction processing. It is easy to use, scalable, and designed to fit the business of any size.It is easy to use, features beautiful invoices and estimates, tracks time, integrates with your payments provider, sends reminders to your clients by email or SMS text message and includes advanced reporting and invoicing capabilities.
4. Hiveage
Streamline your billing process effortlessly with Hiveage.
- SpotScore
- 9.3/10
- User rating
- Pricing model
- Freemium
Hiveage is a billing and invoicing tool for freelancers and small service businesses who need automated recurring invoices, payment tracking, and basic bookkeeping without the complexity of full accounting software. It handles auto-renewing invoice schedules so owners can manage client billing without a dedicated finance team. Its low cost makes it a practical starting point for service businesses under 10 people.
5. Zoho Invoice
Streamline your invoicing process and boost your business.
- SpotScore
- 9.3/10
- User rating
- Pricing model
- Freemium
Zoho Invoice allows you to save time by capturing and organizing your invoices, estimates and receipts from anywhere, while automating recurring billing. It's an efficiently designed invoice management software that helps you save money by automating payments and reminders so you can focus on other aspects of growing your business.
6. Lago
Open-source metered billing and usage-based pricing infrastructure for SaaS
- SpotScore
- 9.2/10
- User rating
- Pricing model
- Free
Lago is an open-source metered billing and usage-based pricing infrastructure platform. It allows SaaS companies to implement complex pricing models — per-seat, usage-based, hybrid, and consumption pricing — with a billing engine that handles metering, aggregation, invoicing, and payment collection. Available as self-hosted (open source, MIT license) or cloud-hosted, Lago is the developer-first alternative to Stripe Billing, Chargebee, and Maxio for companies building usage-based or hybrid pricing models. Backed by $22M in Series A funding.
7. Aiwyn
Revenue automation platform for accounting firms — faster billing and collections
- SpotScore
- 9.2/10
- User rating
- Pricing model
- Paid
Aiwyn is a revenue automation platform built exclusively for accounting firms, automating the billing, collections, and cash flow processes that consume partner and admin time. It connects to existing practice management software (Thomson Reuters, CCH, Canopy) to automate invoice generation, payment collection, engagement letters, and cash application — replacing the manual workflows that delay billing by weeks and slow cash collection. Aiwyn is backed by $20M+ in funding and used by top 100 CPA firms to reduce DSO (days sales outstanding) and increase billing velocity.
8. Moon Invoice
Effortless invoicing for small businesses.
- SpotScore
- 9.2/10
- User rating
- Pricing model
- Free Trial
Moon is SaaS software to create, send and receive invoices. It covers sales and services, online payment collection, accounting and statistics. It works with any currency, and integrates with any accounting software. Moon Invoice is an online invoicing and billing platform that helps small business owners save time, reduce costs, and get paid faster.
9. Invoice Home
Effortless invoicing made easy.
- SpotScore
- 9.2/10
- User rating
- Pricing model
- Free Trial
Invoice Home is an invoicing tool for small businesses and self-employed individuals who need to create and send professional invoices quickly across multiple devices. It tracks income across time periods and lets users access invoices from laptops, tablets, or phones without losing functionality. Customer support is consistently rated as responsive, which is a practical advantage for users without accounting staff.
10. Zervant
Effortless billing and invoicing for your business.
- SpotScore
- 9.1/10
- Pricing model
- Freemium
Zervant is a billing and invoicing software that allows you to charge your clients and keep an online record of transactions. It has a more professional UI, and allows its users to choose between a wide variety of themes. Zervant also grants admin privileges to multiple people, for easier collaboration between departments.
11. OneBill
Streamline your billing processes and boost profits.
- SpotScore
- 9.1/10
- User rating
- Pricing model
- Paid
OneBill is a web-based billing and invoicing service designed to help you increase your sales, decrease your costs and simplify your finances. It's online software so there's nothing to download or install on your computer. You can also access it from anywhere by using any device that has internet access.
12. Invoicely
Effortless invoicing for streamlined business success.
- SpotScore
- 9.1/10
- User rating
- Pricing model
- Freemium
Invoicely is a cloud-based application for creating, sending, and tracking invoices directly from your web browser.It is billing and invoicing software that helps you design, send and manage professional invoices, estimates, quotes, receipts and other important business documents. It's simple to use. It's reliable, secure, and extremely scalable. It's flexible enough to handle any business need – from invoices and quotes to customer service and back office reporting.
13. Invoiced
Effortlessly manage your invoices online.
- SpotScore
- 9.1/10
- User rating
- Pricing model
- Free Trial
Invoiced is online invoicing software that helps you generate, send and track invoices online. It is free cloud-based billing and invoicing software that makes it easy to create, send, receive, and track bills and invoices for your small business. It enables you to send professional quality invoices and estimates to your clients quickly. It can also be used for quoting, sending order confirmations, managing quotes, inventory, purchases, support tickets, accounting and more.
14. Invoice Ninja
Streamline your invoicing and billing with ease.
- SpotScore
- 9.1/10
- User rating
- Pricing model
- Freemium
Invoice Ninja is powerful billing and invoicing software that can grow with your business. Whether you are a one-man show or a large corporation, Invoices Ninja has endless customization options to fit your needs. It allows you to invoice securely, manage your customer database, view your company's financials, and much more.
15. AccountSight
Efficient time tracking for better business management.
- SpotScore
- 9.1/10
- User rating
- Pricing model
- Freemium
AccountSight Time Tracking Software provides a full range of time tracking and reporting features that help you run your business more efficiently. Whether managing individual projects or large departments, you can easily create accounts, assets, and tasks, assign resources, track the status of work in progress, and create reports for management, budgeting, employee review, and more.
16. Digits
AI-powered bookkeeping and financial intelligence platform for SMBs
- SpotScore
- 9.0/10
- User rating
- Pricing model
- Paid
Digits is an AI-powered financial management platform for small and medium-sized businesses, combining automated bookkeeping, real-time financial reporting, and an AI financial analyst in one tool. It connects to bank accounts, credit cards, and payroll systems to categorize transactions automatically, close books faster, and surface insights through natural-language queries. Backed by $60M in funding and built by the founders of Crashlytics, Digits is designed to give growing companies the financial clarity of an in-house CFO without the cost.
17. Square Invoices
Effortless invoicing and payment for small businesses.
- SpotScore
- 9.0/10
- User rating
- Pricing model
- Freemium
Square Invoices is easy, intuitive, and affordable billing and invoicing software for small businesses. Square Invoices integrates seamlessly with Square Point of Sale so you can send estimates, bills, and invoices from within the app. This solution makes it easy for freelancers, consultants and service-based business owners to manage their invoices and get paid online.
18. InvoiceBerry
Streamline your billing and boost your business.
- SpotScore
- 9.0/10
- User rating
- Pricing model
- Free Trial
InvoiceBerry is a cloud based billing & invoicing software with multi-user capability. It has ability to send bills to multiple customers in bulk, payments tracking, recurring billing functionality, invoice reminding and fully integrated with most payment gateways and merchant accounts. It helps you manage, organize and grow your business over the internet.
19. SherpaDesk
Effortless help desk management for all your needs.
- SpotScore
- 8.9/10
- User rating
- Pricing model
- Freemium
SherpaDesk helps companies manage their help desks, including ticketing, knowledge base, customer care, call tracking and more. It also helps companies provide online training to customers, set up web forums for communities or internal teams, self service ticket submission via the web or email for customers to submit their own tickets to help desk, automatically route inquiries to the right person on help desk staff.
20. GetMyInvoices.com
Streamline your invoicing with ease.
- SpotScore
- 8.8/10
- User rating
- Pricing model
- Free Trial
GetMyInvoices.com is an invoice aggregation tool for accounting and back-office teams that spend significant time manually collecting invoices from vendor portals, email inboxes, and cloud apps. It automatically retrieves documents from connected sources and routes them to accounting platforms, cutting the recurring effort of chasing and organizing supplier invoices each month.
How to Choose Billing and Invoicing Software in Singapore
In Singapore, the use of Billing & Invoicing Software is governed by several key regulations that ensure compliance with the Inland Revenue Authority of Singapore (IRAS) and the Accounting and Corporate Regulatory Authority (ACRA). Your business must adhere to the Goods and Services Tax (GST) Act, which mandates accurate invoicing and timely submission of GST returns. Additionally, compliance with the Companies Act requires proper record-keeping and financial reporting. The core challenge you face is ensuring that your chosen software not only meets these regulatory requirements but also integrates seamlessly with your existing financial systems to avoid penalties and operational disruptions.
The GST InvoiceNow requirement arrives by size, running from November 2025 for newly incorporated voluntary registrants out to April 2031 for the largest existing registrants — a calendar worth mapping against before committing to billing and invoicing software.1 Local players such as Xero and QuickBooks dominate the market, offering tailored solutions for Singaporean businesses.
Key Regulations
Goods and Services Tax Act
The Goods and Services Tax Act requires businesses to issue tax invoices that comply with specific formatting and content guidelines. Your software must support the generation of tax invoices that include the GST registration number and the total amount inclusive of GST. Failure to comply can result in penalties of up to SGD 10,000 or 5% of the tax amount involved, whichever is higher.
Income Tax Act
Under the Income Tax Act, businesses must maintain accurate financial records and submit annual tax returns. Your software should facilitate the generation of financial statements and reports that comply with Singapore Financial Reporting Standards (SFRS). Non-compliance can lead to penalties of up to SGD 1,000 for late submissions.
Companies Act
The Companies Act mandates that all companies maintain proper accounting records and prepare annual financial statements. Your software must provide features for record-keeping and reporting that align with the requirements set forth by the Accounting and Corporate Regulatory Authority (ACRA). Failure to comply can result in fines of up to SGD 1,000 for each day of non-compliance.
Electronic Transactions Act
The Electronic Transactions Act recognizes electronic records and signatures as legally binding. Your software must ensure secure electronic invoicing and payment processing, including compliance with data protection laws. Non-compliance can expose your business to legal disputes and loss of revenue.
Personal Data Protection Act
The Personal Data Protection Act (PDPA) requires businesses to protect personal data collected during billing and invoicing processes. Your software must include features for data encryption and consent management. Non-compliance can result in penalties of up to SGD 1 million or 10% of your annual turnover, whichever is higher.
What to Look For
GST-compliant invoicing
Your software must generate invoices that meet the specific requirements of the Goods and Services Tax Act, including the GST registration number and total amounts inclusive of GST. Verify with vendors that their software can automatically calculate and display GST on invoices to ensure compliance and avoid penalties.
SFRS-compliant financial reporting
Ensure that the software can produce financial statements that comply with Singapore Financial Reporting Standards. This feature is crucial for meeting the requirements of the Income Tax Act and the Companies Act. Ask vendors for examples of generated reports to confirm compliance.
Secure electronic invoicing
The software should support secure electronic invoicing in line with the Electronic Transactions Act. This includes features for data encryption and secure payment processing. Confirm with vendors how they ensure the security of electronic transactions to protect your business from fraud.
Data protection compliance
Your software must comply with the Personal Data Protection Act by incorporating features for data encryption and user consent management. This is essential for protecting customer data collected during billing processes. Verify how vendors handle data protection and what measures they have in place.
Automated tax calculations
Look for software that automates tax calculations for both GST and income tax submissions. This feature reduces the risk of human error and ensures timely compliance with tax obligations. Confirm with vendors that their software updates automatically in response to changes in tax rates.
Integration with local banks
Your software should integrate with local banks for seamless payment processing and reconciliation. This feature is vital for efficient cash flow management and compliance with local banking regulations. Ask vendors about their integration capabilities with major Singaporean banks.
Common mistake: A common mistake Singapore businesses make is purchasing Billing & Invoicing Software that lacks GST compliance features. This oversight can lead to incorrect invoicing and hefty penalties under the Goods and Services Tax Act, which can reach SGD 10,000 or more. Before signing any contract, ensure that the software has been verified for GST compliance by checking its capabilities against the IRAS guidelines.
Compliance Checklist
Does the software generate GST-compliant invoices?
This question is crucial because non-compliance with the GST Act can result in significant penalties. If the vendor answers no, you will need to consider alternative solutions that ensure compliance.
Is the software capable of producing SFRS-compliant financial statements?
Ensuring compliance with the Income Tax Act and Companies Act is essential for your business. A negative response means you may face challenges in meeting your reporting obligations.
Does the software support secure electronic invoicing?
This feature is necessary for compliance with the Electronic Transactions Act. If the vendor cannot confirm this capability, it may expose your business to legal risks.
Is the software compliant with the Personal Data Protection Act?
Data protection is critical for maintaining customer trust and avoiding hefty fines. A no answer indicates potential vulnerabilities in handling personal data.
Does the software automate tax calculations for GST and income tax?
Automated calculations help prevent errors and ensure timely compliance with tax obligations. If the vendor cannot confirm this, you risk facing penalties due to miscalculations.
Can the software integrate with local banks for payment processing?
Integration with local banks is vital for efficient cash flow management. A negative response may hinder your ability to manage payments effectively.
Questions to Ask Vendors
- Is your software certified for GST compliance by IRAS?
- How does your software handle updates to SFRS?
- What security measures are in place for electronic invoicing?
- Can your software manage multiple currencies for international clients?
- How do you ensure compliance with the Personal Data Protection Act?
Frequently Asked Questions
In Singapore, businesses must issue tax invoices that comply with the Goods and Services Tax Act. This includes displaying the GST registration number and the total amount inclusive of GST. Failure to comply can result in penalties of up to SGD 10,000 or 5% of the tax amount involved. To ensure compliance, choose Billing & Invoicing Software that automates GST calculations and generates compliant invoices.
Yes, under the Companies Act, all companies in Singapore are required to maintain proper accounting records and prepare annual financial statements. Your Billing & Invoicing Software must support these requirements by generating compliant financial reports. Non-compliance can lead to fines of up to SGD 1,000 for each day of non-compliance. Ensure your software can produce SFRS-compliant reports.
Late submissions of GST returns in Singapore can incur penalties of up to SGD 10,000 or 5% of the tax amount involved, whichever is higher. To avoid these penalties, ensure your Billing & Invoicing Software has features for timely GST return filing. Verify that the software can automate reminders and submissions to IRAS.
The Personal Data Protection Act requires businesses to protect personal data collected during billing processes. Your invoicing software must include features for data encryption and user consent management. Non-compliance can result in penalties of up to SGD 1 million or 10% of your annual turnover. Choose software that prioritizes data protection to mitigate these risks.
Yes, the Electronic Transactions Act recognizes electronic records and signatures as legally binding in Singapore. This means your Billing & Invoicing Software must support secure electronic invoicing. Ensure that the software complies with this act to protect your business from legal disputes and ensure smooth operations.
Billing software in Singapore typically supports various payment methods, including credit cards, PayPal, bank transfers, and local e-wallets like GrabPay and PayNow. Businesses should choose software that integrates seamlessly with these payment options to facilitate easier transactions.
To ensure compliance with Singapore's Personal Data Protection Act (PDPA), select invoicing software that includes features for data encryption, access controls, and audit trails. Additionally, the software provider should demonstrate a clear commitment to data privacy and security.
Freelancers in Singapore should look for invoicing software that offers easy expense tracking, customizable invoice templates, and automated reminders for payments. Features like mobile access and integration with accounting software can also enhance efficiency.
The costs of implementing billing software in Singapore can vary widely, ranging from monthly subscription fees to one-time licensing charges. Additional expenses may include training, data migration, and integration with existing systems, so it's essential to evaluate the total cost of ownership.
Billing software can streamline expense tracking by automatically categorizing expenses and generating reports that align with Singapore's tax requirements. This reduces the risk of errors during tax filing and ensures compliance with the Inland Revenue Authority of Singapore (IRAS).
Yes, many billing software solutions available in Singapore support multi-currency transactions, allowing businesses to invoice clients in different currencies. This is particularly useful for companies that operate in the regional market and deal with international clients.
The average ROI for billing software in Singapore can be significant, with many businesses reporting increased efficiency, reduced manual errors, and faster payment cycles. On average, companies may see a return within the first year due to improved cash flow and time savings.
When choosing billing software in Singapore, look for integrations with popular accounting software like Xero or QuickBooks, as well as CRM systems. These integrations can streamline workflows, reduce duplicate data entry, and enhance overall efficiency.
Invoicing software assists with compliance in Singapore by automating GST calculations, generating compliant invoices, and maintaining accurate records for audits. This helps businesses adhere to regulatory requirements set by the Inland Revenue Authority of Singapore (IRAS).
Billing software providers in Singapore typically offer a variety of customer support options, including email, phone support, live chat, and online resources like FAQs and tutorials. Look for providers that offer local support during business hours to ensure timely assistance.
View Billing and Invoicing Software by Country
Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].