Accounting & Tax Guides

Compliance, VAT, GST and Sales Tax — by country and by topic. Plain-language guides and free calculators for every market KARR serves.

By country

India

India1 guides
GST calculator →

Middle East

UAE1 guides
VAT calculator →
Saudi ArabiaNew
VAT calculator →
BahrainNew
VAT calculator →
OmanNew
VAT calculator →

North America

USA1 guides
Sales Tax calculator →
Canada1 guides
GST/HST calculator →

UK & Europe

UK1 guides
VAT calculator →
IrelandNew
VAT calculator →
GermanyNew
VAT calculator →
FranceNew
VAT calculator →
NetherlandsNew
VAT calculator →
SpainNew
VAT calculator →
ItalyNew
VAT calculator →
PortugalNew
VAT calculator →

Asia-Pacific

Singapore1 guides
GST calculator →
Australia1 guides
GST calculator →
New ZealandNew
GST calculator →
MalaysiaNew
SST calculator →
PhilippinesNew
VAT calculator →
IndonesiaNew
VAT calculator →
ThailandNew
VAT calculator →
PakistanNew
Sales Tax calculator →
BangladeshNew
VAT calculator →
Sri LankaNew
VAT calculator →

Africa

South AfricaNew
VAT calculator →
KenyaNew
VAT calculator →
NigeriaNew
VAT calculator →
GhanaNew
VAT calculator →

By topic

GST Compliance (India)1 guides
GST filing, e-invoice, ITC, RCM, TDS/TCS, HSN and more — the full Indian compliance stack.
Accounting for Non-AccountantsNew
Plain-language bookkeeping basics for owners with no accounting background.
CA & Practice ManagementNew
Running an accounting practice: multi-client management, batch filing, compliance calendars.
Tally Alternatives & MigrationNew
Moving from Tally to the cloud — comparisons and migration guides.
UAE VAT & Corporate Tax1 guides
Form 201, FTA compliance, Free Zone rules and UAE corporate tax.
QuickBooks AlternativesNew
Cheaper, simpler alternatives to QuickBooks — feature and pricing comparisons.
Offline-First AccountingNew
Accounting that works without internet — the PWA advantage.
AI in AccountingNew
Receipt OCR, bank-feed auto-categorization, anomaly detection and AI bookkeeping.
US Sales Tax & Compliance1 guides
Economic nexus, 1099 reporting and multi-state sales tax.
UK VAT & Making Tax Digital1 guides
VAT registration, MTD-compatible filing and UK compliance.
Singapore GST1 guides
IRAS GST registration, F5 filing and InvoiceNow.
Global Compliance & TaxNew
Cross-border tax and compliance for businesses operating in many countries.
Saudi Arabia VAT & ZATCANew
VAT, Zakat and ZATCA Fatoorah e-invoicing.
GCC VAT & Corporate TaxNew
VAT and corporate tax across Bahrain, Oman, Qatar and Kuwait.
Canada GST/HST1 guides
Federal GST, provincial HST/PST/QST and CRA filing.
Australia GST & BAS1 guides
GST, the Business Activity Statement, PAYG and Single Touch Payroll.
New Zealand GSTNew
IRD GST registration and filing.
Malaysia SST & e-InvoicingNew
Sales & Service Tax and the MyInvois rollout.
EU VAT & OSSNew
Per-country EU VAT, the One-Stop-Shop and e-invoicing mandates.
Africa VAT & TaxNew
VAT and corporate tax across South Africa, Kenya, Nigeria and Ghana.
Asia VAT & TaxNew
VAT and sales tax across the Philippines, Indonesia, Thailand, Pakistan and more.
GeneralNew
Accounting, tax and business guides across topics and markets.