Interbooks

Every feature your accounts need

Interbooks bundles every accounting workflow into one platform — with no hidden add-ons, no per-feature upsells, and no steep learning curve.

InvoicingExpensesBank RecReportsInventoryChart of AccountsMulti-currencyMulti-business

Invoicing & Quotes

Create polished, branded invoices in seconds. Convert approved quotes to invoices in a single click. Automated reminders chase overdue payments while you focus on the work.

Branded templates
Upload your logo and set brand colours. Every PDF looks like it came from your design team.
Quote → Invoice
Convert an accepted quote to an invoice with one click. No re-entry, no duplication.
Automated reminders
Set reminder schedules — Interbooks emails the client before and after the due date.
Recurring invoices
Set up monthly or weekly billing schedules. Invoices generated and sent automatically.
GST-inclusive billing
GST is calculated and shown separately on every invoice, ready for your F5/F8 return.
Payment links
Include a payment link on invoices — clients pay online and the invoice marks itself paid.
Acme Pte Ltd
10 Anson Road, #10-01
Singapore 079903
INVOICE
# INV-2025-0041
Due: 30 Nov 2025
DescriptionQtyAmount
Web development — Oct1$4,500.00
SEO consulting3 hrs$600.00
Subtotal$5,100.00
GST 9%$459.00
Total$5,559.00
✓ Payment received
Recent ExpensesOctober 2025
✈️
Business Travel
Oct 14 · Transport
$340.00
🍽️
Client Dinner
Oct 12 · Meals & Ent.
$218.50
💻
SaaS Subscriptions
Oct 1 · Software
$156.00
📦
Office Supplies
Oct 8 · Stationery
$89.90
Total this month$804.40

Expenses & Bills

Every business expense, from supplier invoices to petty cash, captured and categorised with minimal effort. GST tracked automatically.

OCR receipt scanning
Photograph a receipt and Interbooks extracts vendor, date, and amount automatically.
Supplier bill management
Record bills, track payment due dates, and mark as paid when you settle them.
Smart categorisation rules
Define rules so recurring transactions from the same vendor always hit the right account.
GST input tax tracking
Every expense tags claimable GST input tax, pre-populating your F5 return.

Bank Reconciliation

Stop comparing spreadsheets against paper statements. Import your bank feed, and Interbooks matches transactions to your records — flagging only the ones that need your attention.

OFX & CSV import
Import statements from any Singapore bank. DBS, OCBC, UOB, and more.
Smart matching
Auto-matches by amount, date, and payee — with confidence scoring.
Categorisation rules
Teach Interbooks your patterns once; it applies them automatically forever after.
Multi-account
Reconcile multiple bank accounts, credit cards, and e-wallet accounts separately.
Reconcile — DBS Current Account14 matched
Shopee — order payment
Oct 18 · $342.00
Matched
NETS — 7-Eleven
Oct 17 · $12.50
ReviewAssign
Singtel invoice
Oct 15 · $89.00
Matched
1 transaction needs review
View all →

Financial Reports

SFRS-compliant statements generated in real time. Export to PDF for your bank, your board, or your auditors — with no manual formatting required.

📊

Profit & Loss

Monthly, quarterly, or annual P&L with prior-period comparison and % variance.

📋

Balance Sheet

Snapshot of assets, liabilities, and equity at any date — bank-ready format.

💧

Cash Flow Statement

Direct and indirect method cash flow. See exactly where cash is coming from and going.

⚖️

Trial Balance

Full debit/credit listing for every account — essential for period-end review.

🕐

Aged Receivables

See exactly who owes you what and for how long. Prioritise collections instantly.

🇸🇬

GST F5 Summary

Box-by-box GST return summary pre-filled from your transactions — no more manual tallying.

Inventory & Stock

Track every item from the moment you order it to the moment it leaves your warehouse. Full purchase-to-sale visibility, linked directly to your accounts.

Real-time stock levels
Know what's in stock across all warehouses at any moment.
Purchase & sales orders
Raise POs, confirm SOs, and convert to invoices and bills automatically.
Delivery notes & GRNs
Issue delivery notes on dispatch; confirm goods received with GRNs linked to POs.
Bill of Materials
Define product components and quantities. Production orders deduct sub-components automatically.
Inventory Items
ItemOn HandReorderValue
Widget Pro 500ml24850$3,472
Blue Label Carton1220$408
Packaging Set A560100$1,120
Handle Assembly K98330$2,075
1 item below reorder point — raise purchase order
Chart of Accounts+ Add account
Assets
1000 · Cash at BankCurrent Asset
1100 · Accounts ReceivableCurrent Asset
1200 · InventoryCurrent Asset
Liabilities
2000 · Accounts PayableCurrent Liability
2200 · GST PayableCurrent Liability
Revenue
4000 · Sales RevenueRevenue

Chart of Accounts

Starts SFRS-compliant out of the box. Fully customisable for your industry, entity structure, or management reporting requirements.

SFRS default structure
Pre-loaded with a Singapore-standard chart. Start coding transactions on day one.
Custom account groups
Add sub-accounts and groups for granular P&L tracking by product line or department.
Account-level audit trail
Every journal entry that touched an account is one click away.

Multi-currency

Invoice in USD, pay suppliers in EUR, and report in SGD — simultaneously. Interbooks handles all foreign exchange and posts forex gains and losses automatically.

160+ currencies supported
Including SGD, USD, EUR, GBP, AUD, MYR, CNY, and more.
Live exchange rates
Rates updated daily. Or fix your own rate for a transaction.
Unrealised forex gain/loss
Auto-calculated at period end. Posts to your P&L with the correct accounting treatment.
🇺🇸
USD 5,000.00
Invoice #INV-042 · Client in Boston
SGD 6,735
1 USD = 1.347 SGD
🇪🇺
EUR 2,200.00
Bill #BILL-018 · Supplier in Berlin
SGD 3,190
1 EUR = 1.450 SGD
Unrealised forex gain (Oct)
+ SGD 142.30
Posted to
P&L auto
My Businesses
AP
Apex Imports Pte Ltd
UEN 202312345A
Active
KK
Kampong Kitchen Pte Ltd
UEN 201998765B
Active
FE
FinEdge Advisory LLP
UEN T20LL0012E
Accountant access

Multi-Business & Accountant Access

One login manages unlimited business entities. Accountants get a separate portal that surfaces all their clients in one view — no shared passwords, no confusion.

Unlimited entities
Run a holding group or accounting practice — no per-entity charges.
Granular role permissions
Owner, admin, accountant, viewer — control exactly who can see or do what.
Custom branded portal
Accounting firms can white-label the client portal with their own logo and domain.

All this, in one subscription.

No feature gating. No per-module add-ons. Every feature on this page is included from day one.

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