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OpenAccountants publishes open, source-cited tax knowledge for use by people, software and AI. Automated outputs are drafts and do not create a professional engagement. Obtain qualified advice before filing, paying or taking a material tax position.

The open Tax Guides

Open Tax Guides for the AI you already use

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Browse the open Tax Guides that power OpenAccountants workflows. Each Guide is designed to be cited, inspectable, and usable by AI systems (as a machine-readable Skill). Some are source-cited drafts. Some have named accountant review. All are open Tax Guides.

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1796 Guides · 186 matching · 244 jurisdictions

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NameDomainJurisdictionStatus
PH Sss Philhealth

Whenever asked about Philippine social security contributions for self…

PayrollPhilippinesAttested by another accountant

Showing 101–150 of 186 Guides

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1796 Guides across 244 jurisdictions. You do not need to cover an entire country. Publish a Guide within your expertise, under your name, and colleagues attest to the ones they stand behind.

GLOBAL

61 Guides · No accountant yet

United States

60 Guides · No accountant yet

Australia

23 Guides · No accountant yet

Spain

22 Guides · No accountant yet

Canada

35 Guides · Reviewed by: Edgar Lautsyus

IL Income Tax

Illinois Individual Income Tax Return (Form IL-1040) for sole propriet…

Income TaxIllinoisAttested by another accountant
IN GST Return

This skill has been consolidated. See india-gst.md in this directory.

VAT / GSTIndiaAttested by another accountant
Philippines Corporate Income Tax

Source-cited draft: corporate income tax for Philippines (tax year 202…

Income TaxPhilippinesAttested by another accountant
Philippines Company Formation & Entity Choice

Source-cited draft: company formation & entity choice for Philippines …

Company FormationPhilippinesAttested by another accountant
FL Corporate Income TaxIncome TaxFloridaAttested by another accountant
Canada Transfer Pricing

Whenever asked about Canada transfer pricing rules, documentation requ…

Transfer PricingCanadaAttested by another accountant
ID Income Tax

Idaho Individual Income Tax Return (Form 40) for sole proprietors and …

Income TaxIndonesiaAttested by another accountant
Cyprus Payroll

Whenever asked about Cyprus payroll processing for employed persons. T…

PayrollCyprusAttested by another accountant
ZA Income Tax

Whenever asked about South African income tax for self-employed indivi…

Income TaxSouth AfricaAttested by another accountant
Philippines Tax Overview

Source-cited draft: tax overview for Philippines (tax year 2025) — rat…

Income TaxPhilippinesAttested by another accountant
UK Financial Statements

When preparing, reviewing, or advising on annual financial statements …

Financial StatementsUnited KingdomAttested by another accountant
Tanzania VAT

Whenever asked to prepare, review, or classify transactions for a Tanz…

VAT / GSTTanzaniaAttested by another accountant
AE VAT Return

This skill has been consolidated. See uae-vat.md in this directory.

VAT / GSTUnited Arab EmiratesAttested by another accountant
Tunisia Payroll & Social Contributions

Source-cited draft: payroll & social contributions for Tunisia (tax ye…

PayrollTunisiaAttested by another accountant
Philippines VAT

Whenever asked to prepare, review, or classify transactions for a Phil…

VAT / GSTPhilippinesAttested by another accountant
Brazil Transfer Pricing

EN: Use this skill whenever asked about Brazil transfer pricing rules,…

Transfer PricingBrazilAttested by another accountant
Cyprus VAT Return

Whenever asked to prepare, review, or classify transactions for a Cypr…

VAT / GSTCyprusAttested by another accountant
US Self Employed Health Insurance

Tier 2 content skill for computing the self-employed health insurance …

Income TaxUnited StatesAttested by another accountant
Dominican Republic Tax Registration & Formal Obligations (RNC)

Dominican Republic Tax Registration & Formal Obligations (RNC) — accou…

Company FormationDominican RepublicAttested by another accountant
Dominican Republic Special Tax Regimes (Free Zones, Tourism, Renewables)

Dominican Republic Special Tax Regimes (Free Zones, Tourism, Renewable…

Tax OptimizationDominican RepublicAttested by another accountant
Dominican Republic Tax Defense & Penalties

Dominican Republic Tax Defense & Penalties — accountant-verified rules…

ReferencesDominican RepublicAttested by another accountant
Dominican Republic Withholding Taxes (Retenciones, Dividends, Foreign Payments)

Dominican Republic Withholding Taxes (Retenciones, Dividends, Foreign …

Income TaxDominican RepublicAttested by another accountant
Dominican Republic Simplified Tax Regimes (RST)

Dominican Republic Simplified Tax Regimes (RST) — accountant-verified …

Income TaxDominican RepublicAttested by another accountant
Dominican Republic Donations & Estates

Dominican Republic Donations & Estates — accountant-verified rules fro…

Estate & Wealth TaxDominican RepublicAttested by another accountant
Dominican Republic Transfer Pricing

Dominican Republic Transfer Pricing — accountant-verified rules from t…

Transfer PricingDominican RepublicAttested by another accountant
IL Estimated Tax

Illinois Estimated Income Tax (Form IL-1040-ES) for self-employed indi…

Income TaxIllinoisAttested by another accountant
Dominican Republic Municipal & Environmental Levies

Dominican Republic Municipal & Environmental Levies — accountant-verif…

Sector GuidanceDominican RepublicAttested by another accountant
Dominican Republic Double-Tax Treaties (CDI)

Dominican Republic Double-Tax Treaties (CDI) — accountant-verified rul…

Cross-BorderDominican RepublicAttested by another accountant
Portugal Crypto Tax

Utilize esta skill sempre que for solicitada informação sobre a tribut…

Crypto TaxPortugalAttested by another accountant
Dominican Republic Real Estate Tax (IPI) & Property Transfer

Dominican Republic Real Estate Tax (IPI) & Property Transfer — account…

Estate & Wealth TaxDominican RepublicAttested by another accountant
ID Bookkeeping

Whenever asked about Indonesian bookkeeping or transaction classificat…

BookkeepingIndonesiaAttested by another accountant
Dominican Republic Asset Tax (Impuesto sobre Activos)

Dominican Republic Asset Tax (Impuesto sobre Activos) — accountant-ver…

Estate & Wealth TaxDominican RepublicAttested by another accountant
Dominican Republic Capital Gains Tax

Dominican Republic Capital Gains Tax — accountant-verified rules from …

Income TaxDominican RepublicAttested by another accountant
Dominican Republic Selective Consumption Tax (ISC)

Dominican Republic Selective Consumption Tax (ISC) — accountant-verifi…

VAT / GSTDominican RepublicAttested by another accountant
India Einvoice

Whenever asked about India GST e-invoicing, Invoice Registration Porta…

E-InvoicingIndiaAttested by another accountant
Georgia VAT

Whenever asked to prepare, review, or classify transactions for a Geor…

VAT / GSTGeorgiaAttested by another accountant
UK Payroll

Whenever asked about UK payroll, PAYE, National Insurance contribution…

PayrollUnited KingdomAttested by another accountant
Sri Lanka VAT

Whenever asked to prepare, review, or classify transactions for a Sri …

VAT / GSTSri LankaAttested by another accountant
US Crypto Tax

US federal cryptocurrency CORE rules — digital assets as property (Not…

Crypto TaxUnited StatesAttested by another accountant
US Form 1040 Individual Return

Tier 2 US federal content skill for preparing Form 1040 — the standard…

Income TaxUnited StatesAttested by another accountant
India Transfer Pricing

Whenever asked about India transfer pricing rules, documentation requi…

Transfer PricingIndiaAttested by another accountant
VAT returns for small businesses in the UK

Small business VAT, sorted quarter after quarter properly, not just on…

VAT / GSTUnited KingdomAttested by another accountant
Canada Tax Optimization

When advising on LEGAL tax minimization strategies for Canadian taxpay…

Tax OptimizationCanadaAttested by another accountant
ZA Provisional Tax

Whenever asked about South African provisional tax (IRP6) for self-emp…

Income TaxSouth AfricaAttested by another accountant
PH Income Tax

Whenever asked about Philippines income tax for self-employed individu…

Income TaxPhilippinesAttested by another accountant
UK Tax Optimization

Whenever asked about reducing tax in the UK, tax planning, saving tax,…

Tax OptimizationUnited KingdomAttested by another accountant
Canada Bookkeeping

Whenever asked about Canadian bookkeeping for sole proprietors, partne…

BookkeepingCanadaAttested by another accountant
CA Fed Instalments

Whenever asked about Canadian federal quarterly instalment requirement…

Income TaxCanadaAttested by another accountant
IN Tds Freelance

Whenever asked about Indian TDS (Tax Deducted at Source) on payments t…

Income TaxIndiaAttested by another accountant

United Kingdom

25 Guides · Reviewed by: James Power

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