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VERIFICATION

Verification status by country

Every calculator is built from official sources and hand-worked examples. This page shows, for each country, how many of those sources our monitor checked recently and whether an independent tax professional has reviewed it. How verification works.

161 countries · 0 professionally verified · 126 with most official sources checked in the last three weeks.

CountryStatusSources checkedLatest check
AfghanistanBuilt from official sources0 of 2Pending
Åland IslandsOfficial sources monitored6 of 62026-10-23
AlbaniaBuilt from official sources1 of 42026-10-23
AlgeriaOfficial sources monitored2 of 32026-10-23
American SamoaOfficial sources monitored5 of 52026-10-23
AndorraOfficial sources monitored2 of 32026-10-23
AngolaOfficial sources monitored2 of 42026-10-23
AnguillaOfficial sources monitored4 of 52026-10-23
Antigua and BarbudaOfficial sources monitored14 of 142026-10-23
ArgentinaOfficial sources monitored9 of 122026-10-23
ArmeniaOfficial sources monitored6 of 62026-10-23
ArubaOfficial sources monitored7 of 72026-10-23
AustraliaBuilt from official sources3 of 122026-10-16
AustriaOfficial sources monitored9 of 112026-10-23
AzerbaijanBuilt from official sources0 of 4Pending
BahamasBuilt from official sources1 of 32026-10-18
BahrainOfficial sources monitored3 of 42026-10-23
BangladeshOfficial sources monitored3 of 32026-10-18
BarbadosOfficial sources monitored2 of 22026-10-18
BelarusOfficial sources monitored3 of 32026-10-18
BelgiumOfficial sources monitored2 of 32026-10-23
BelizeOfficial sources monitored2 of 32026-10-18
BeninOfficial sources monitored1 of 22026-10-18
BermudaOfficial sources monitored2 of 22026-10-19
BhutanOfficial sources monitored1 of 22026-10-18
BoliviaBuilt from official sources1 of 42026-10-18
Bonaire, Sint Eustatius and SabaOfficial sources monitored1 of 22026-10-18
Bosnia and HerzegovinaOfficial sources monitored3 of 42026-10-18
BotswanaOfficial sources monitored1 of 22026-10-18
BrazilOfficial sources monitored3 of 42026-10-18
British Virgin IslandsBuilt from official sources1 of 32026-10-18
BruneiOfficial sources monitored2 of 22026-10-18
BulgariaOfficial sources monitored3 of 42026-10-18
Burkina FasoOfficial sources monitored2 of 32026-10-23
BurundiOfficial sources monitored2 of 22026-10-18
CambodiaOfficial sources monitored2 of 22026-10-18
CameroonOfficial sources monitored2 of 22026-10-18
CanadaOfficial sources monitored9 of 162026-10-23
Cape VerdeOfficial sources monitored2 of 22026-10-18
Cayman IslandsOfficial sources monitored2 of 22026-10-18
Central African RepublicOfficial sources monitored1 of 22026-10-18
ChadBuilt from official sources0 of 2Pending
ChileOfficial sources monitored2 of 32026-10-18
ChinaBuilt from official sources1 of 32026-10-18
Christmas IslandBuilt from official sources3 of 122026-10-16
Cocos (Keeling) IslandsBuilt from official sources3 of 122026-10-16
ColombiaOfficial sources monitored2 of 32026-10-18
ComorosOfficial sources monitored1 of 22026-10-18
Cook IslandsBuilt from official sources0 of 2Pending
Costa RicaBuilt from official sources1 of 32026-10-23
CroatiaOfficial sources monitored2 of 32026-10-18
CubaOfficial sources monitored2 of 22026-10-23
CuraçaoOfficial sources monitored2 of 32026-10-18
CyprusBuilt from official sources3 of 82026-10-23
CzechiaOfficial sources monitored2 of 32026-10-18
DenmarkBuilt from official sources0 of 3Pending
DjiboutiOfficial sources monitored2 of 22026-10-23
DominicaOfficial sources monitored1 of 22026-10-23
Dominican RepublicOfficial sources monitored2 of 32026-10-23
DR CongoOfficial sources monitored2 of 22026-10-23
EcuadorBuilt from official sources0 of 3Pending
EgyptOfficial sources monitored2 of 22026-10-23
El SalvadorOfficial sources monitored2 of 22026-10-23
Equatorial GuineaBuilt from official sources0 of 2Pending
EritreaOfficial sources monitored1 of 22026-10-23
EstoniaOfficial sources monitored1 of 22026-10-23
EswatiniOfficial sources monitored1 of 22026-10-23
EthiopiaOfficial sources monitored1 of 22026-10-23
Falkland IslandsBuilt from official sources0 of 2Pending
Faroe IslandsOfficial sources monitored2 of 22026-10-23
FijiBuilt from official sources0 of 3Pending
FinlandOfficial sources monitored2 of 32026-10-23
FranceOfficial sources monitored4 of 52026-10-21
GabonOfficial sources monitored2 of 22026-10-23
GambiaBuilt from official sources0 of 2Pending
GeorgiaOfficial sources monitored2 of 22026-10-23
GermanyOfficial sources monitored5 of 62026-10-16
GhanaOfficial sources monitored2 of 32026-10-23
GreeceBuilt from official sources1 of 32026-10-16
GrenadaBuilt from official sources0 of 3Pending
GuatemalaOfficial sources monitored2 of 32026-10-23
GuernseyOfficial sources monitored2 of 22026-10-23
GuyanaOfficial sources monitored2 of 32026-10-23
HondurasBuilt from official sources1 of 32026-10-23
Hong KongOfficial sources monitored4 of 42026-10-23
HungaryOfficial sources monitored2 of 22026-10-23
IcelandOfficial sources monitored3 of 32026-10-23
IndiaBuilt from official sources0 of 5Pending
IndonesiaOfficial sources monitored2 of 22026-10-23
IraqOfficial sources monitored2 of 22026-10-23
IrelandBuilt from official sources1 of 42026-10-16
Isle of ManOfficial sources monitored2 of 22026-10-23
IsraelBuilt from official sources0 of 2Pending
ItalyOfficial sources monitored3 of 52026-10-16
JamaicaOfficial sources monitored1 of 12026-10-23
JapanOfficial sources monitored2 of 22026-10-23
JerseyOfficial sources monitored3 of 32026-10-23
KazakhstanBuilt from official sources0 of 2Pending
KenyaOfficial sources monitored2 of 22026-10-23
KuwaitOfficial sources monitored1 of 22026-10-23
LatviaBuilt from official sources0 of 3Pending
LiechtensteinOfficial sources monitored4 of 42026-10-23
LithuaniaBuilt from official sources0 of 2Pending
LuxembourgOfficial sources monitored8 of 92026-10-23
MacauOfficial sources monitored3 of 32026-10-23
MalaysiaOfficial sources monitored1 of 22026-10-23
MaltaBuilt from official sources0 of 2Pending
MauritiusOfficial sources monitored2 of 22026-10-23
MexicoBuilt from official sources0 of 3Pending
MicronesiaOfficial sources monitored2 of 22026-10-23
MoldovaOfficial sources monitored1 of 12026-10-23
MonacoOfficial sources monitored2 of 22026-10-23
MongoliaOfficial sources monitored2 of 22026-10-23
MoroccoBuilt from official sources0 of 2Pending
NamibiaOfficial sources monitored1 of 12026-10-23
NetherlandsOfficial sources monitored5 of 62026-10-16
New ZealandOfficial sources monitored4 of 42026-10-23
NigeriaOfficial sources monitored1 of 22026-10-23
North MacedoniaOfficial sources monitored2 of 32026-10-23
NorwayOfficial sources monitored2 of 22026-10-23
OmanOfficial sources monitored1 of 22026-10-23
PakistanOfficial sources monitored1 of 12026-10-23
PanamaOfficial sources monitored1 of 12026-10-23
ParaguayBuilt from official sources0 of 2Pending
PeruOfficial sources monitored2 of 22026-10-23
PhilippinesOfficial sources monitored6 of 72026-10-23
PolandOfficial sources monitored3 of 42026-10-23
PortugalOfficial sources monitored5 of 72026-10-17
QatarOfficial sources monitored1 of 22026-10-23
RomaniaOfficial sources monitored1 of 12026-10-23
RussiaOfficial sources monitored2 of 22026-10-23
RwandaOfficial sources monitored3 of 32026-10-23
Saint Kitts and NevisOfficial sources monitored4 of 42026-10-23
SamoaOfficial sources monitored2 of 22026-10-23
Saudi ArabiaOfficial sources monitored2 of 22026-10-23
SerbiaOfficial sources monitored2 of 22026-10-23
SeychellesOfficial sources monitored1 of 12026-10-23
SingaporeOfficial sources monitored3 of 52026-10-21
SlovakiaOfficial sources monitored2 of 42026-10-23
South AfricaOfficial sources monitored2 of 42026-10-23
South KoreaOfficial sources monitored2 of 32026-10-23
SpainOfficial sources monitored3 of 52026-10-16
Sri LankaOfficial sources monitored2 of 22026-10-23
SwedenOfficial sources monitored3 of 32026-10-23
SwitzerlandOfficial sources monitored7 of 72026-10-23
TaiwanOfficial sources monitored3 of 32026-10-23
TanzaniaBuilt from official sources0 of 2Pending
ThailandOfficial sources monitored4 of 52026-10-23
Timor-LesteOfficial sources monitored1 of 22026-10-23
Trinidad and TobagoOfficial sources monitored3 of 32026-10-23
TürkiyeOfficial sources monitored6 of 62026-10-23
UgandaOfficial sources monitored2 of 22026-10-23
UkraineOfficial sources monitored4 of 42026-10-23
United Arab EmiratesOfficial sources monitored6 of 72026-10-23
United KingdomOfficial sources monitored5 of 92026-10-16
United StatesOfficial sources monitored53 of 732026-10-23
UruguayOfficial sources monitored4 of 42026-10-23
UzbekistanOfficial sources monitored1 of 12026-10-23
VanuatuOfficial sources monitored2 of 22026-10-23
VietnamOfficial sources monitored6 of 72026-10-23
ZambiaBuilt from official sources0 of 1Pending