Interbooks

Simple, honest pricing

All plans include every accounting feature. No feature gating, no hidden add-ons — just more users and priority support as you scale.

All prices in SGD  ·  Billed monthly  ·  30-day free trial on all plans

Starter
$25/month

Perfect for sole traders and micro-businesses just getting started.

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  • 1 user included
  • 1 business entity
  • Invoicing & quotes
  • Expenses & bills
  • Core financial reports
  • GST tracking
  • Bank reconciliation
  • Inventory & orders
  • Multi-currency
Most popular
Professional
$55/month

For growing SMEs that need the full accounting suite and team collaboration.

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  • 5 users included
  • 3 business entities
  • Invoicing & quotes
  • Expenses & bills
  • All financial reports
  • Bank reconciliation
  • Inventory & orders
  • Multi-currency (160+)
  • Branded client portal
Business
$99/month

For groups, holding companies, and accounting firms managing multiple clients.

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  • Unlimited users
  • Unlimited entities
  • Everything in Professional
  • Branded client portal
  • Custom domain support
  • Accountant portal
  • API access
  • Priority support (4-hr SLA)
  • Dedicated onboarding
Pay annually and save 2 months — ask us about annual billing

Full feature comparison

Every detail, side by side.

FeatureStarter
$25/mo
Professional
$55/mo
Business
$99/mo
Plan Limits
Users15Unlimited
Business entities13Unlimited
Invoices / month50UnlimitedUnlimited
Bank accounts15Unlimited
Invoicing & Quotes
Create & send invoices
Quotes & estimates
Branded PDF templates
Automated payment reminders
Recurring invoices
Sales orders
Expenses & Bills
Expense entry
Supplier bill management
Receipt OCR scanning
Auto-categorisation rules
Purchase orders
Bank Reconciliation
Bank statement import (CSV / OFX)
Smart transaction matching
Reconciliation rules
Financial Reports
Profit & Loss
Balance Sheet
Cash Flow Statement
Trial Balance
Aged Receivables / Payables
GST F5 Summary
Prior-period comparison
Inventory & Stock
Inventory item tracking
Multiple warehouses
Delivery notes & GRNs
Bill of Materials
Production orders
Multi-currency
Foreign currency invoices
Live exchange rates
Unrealised forex gain/loss
Access & Collaboration
Role-based permissions
Invite accountant / bookkeeper
Accountant portal (multi-client)
Branded client portal
Custom domain
API access
Audit trail
Support
Email support2-business-dayNext business day4-hour SLA
Live chat
Dedicated onboarding

Frequently asked questions

Is the 30-day trial really free?

Yes. No credit card required. You get the full plan features for 30 days. At the end of the trial you choose a plan or your data is safely exported.

Can I change plans later?

Absolutely. You can upgrade or downgrade at any time. Upgrades take effect immediately; downgrades take effect at the next billing cycle.

What counts as a "business entity"?

Each UEN or registered company is one entity. If you run multiple companies — e.g., a main company and a subsidiary — each counts as one entity. Sole proprietorships and LLPs count as one entity each.

I'm an accountant managing multiple clients. Which plan is right for me?

Business is designed for accounting practices. You get unlimited client businesses, the accountant portal, and the option to white-label the portal with your firm's branding.

Is my data secure?

Your data is encrypted at rest and in transit. We use industry-standard infrastructure with automatic backups, SOC 2 Type II controls, and data residency in Singapore.

Start your free trial today

30 days free. All features. No credit card needed.

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