Best ONESOURCE Sales & Use Tax Compliance Alternatives in 2026

Updated October 2026

20 platforms from AI tax software ranked against ONESOURCE Sales & Use Tax Compliance on the same published basis.

1
Taxation.ai Free plan apiself-hostedWeb $49/mo7.2
ONESOURCE Sales & Use Tax Compliance vs Taxation.ai
2
OpenTax Free plan apiself-hostedWeb Free7.1
ONESOURCE Sales & Use Tax Compliance vs OpenTax
3
OpenTax by Invaro Free plan apiLinuxMacself-hostedWeb Free7.1
ONESOURCE Sales & Use Tax Compliance vs OpenTax by Invaro
4
SelfTax Free plan apiextensionself-hosted Free7.1
ONESOURCE Sales & Use Tax Compliance vs SelfTax
5
Filed Free trial apiMacWebWin 6.6
ONESOURCE Sales & Use Tax Compliance vs Filed
6
ONESOURCE Certificate Manager apiself-hostedWebWin 6.6
ONESOURCE Sales & Use Tax Compliance vs ONESOURCE Certificate Manager
7
ONESOURCE Indirect Compliance api 6.4
ONESOURCE Sales & Use Tax Compliance vs ONESOURCE Indirect Compliance
8
TaxAct Free plan Web $44.99/mo6.0
ONESOURCE Sales & Use Tax Compliance vs TaxAct
9
H&R Block Online Free plan WebiOSAndroid Free5.9
ONESOURCE Sales & Use Tax Compliance vs H&R Block Online
10
Taxfix Free plan AndroidiOSWeb €3.33/mo5.9
ONESOURCE Sales & Use Tax Compliance vs Taxfix
11
TurboTax Free plan Web $79/mo5.9
ONESOURCE Sales & Use Tax Compliance vs TurboTax
12
Filabl Free plan Web £19/mo5.8
ONESOURCE Sales & Use Tax Compliance vs Filabl
13
TelosTax Free plan AndroidiOSLinuxMacWeb Free5.8
ONESOURCE Sales & Use Tax Compliance vs TelosTax
14
BharatTax AI Free plan Web Free5.7
ONESOURCE Sales & Use Tax Compliance vs BharatTax AI
15
Instead Free plan Web Free5.7
ONESOURCE Sales & Use Tax Compliance vs Instead
16
Prime Meridian Free plan Web Free5.7
ONESOURCE Sales & Use Tax Compliance vs Prime Meridian
17
Quicko Free plan WebiOSAndroid ₹999/mo5.7
ONESOURCE Sales & Use Tax Compliance vs Quicko
18
EZTax Free trial AndroidiOSWebWin ₹208.25/mo5.6
ONESOURCE Sales & Use Tax Compliance vs EZTax
19
TaxTim AndroidiOSWeb 5.5
ONESOURCE Sales & Use Tax Compliance vs TaxTim
20
Abacus Web 5.4
ONESOURCE Sales & Use Tax Compliance vs Abacus

ONESOURCE Sales & Use Tax Compliance alternatives compared

#	Platform	Score	Free plan	From	Runs on
1	Taxation.ai	7.2	Free plan	$49/mo	API, self-hosted, Web
2	OpenTax	7.1	Free plan	Free	API, self-hosted, Web
3	OpenTax by Invaro	7.1	Free plan	Free	API, Linux, Mac, self-hosted, Web, Windows
4	SelfTax	7.1	Free plan	Free	API, Browser, self-hosted
5	Filed	6.6			API, Mac, Web, Windows
6	ONESOURCE Certificate Manager	6.6			API, self-hosted, Web, Windows
7	ONESOURCE Indirect Compliance	6.4			API
8	TaxAct	6.0	Free plan	$44.99/mo	Web
9	H&R Block Online	5.9	Free plan	Free	Web, iOS, Android
10	Taxfix	5.9	Free plan	€3.33/mo	Android, iOS, Web
11	TurboTax	5.9	Free plan	$79/mo	Web
12	Filabl	5.8	Free plan	£19/mo	Web
13	TelosTax	5.8	Free plan	Free	Android, iOS, Linux, Mac, Web, Windows
14	BharatTax AI	5.7	Free plan	Free	Web
15	Instead	5.7	Free plan	Free	Web
16	Prime Meridian	5.7	Free plan	Free	Web
17	Quicko	5.7	Free plan	₹999/mo	Web, iOS, Android
18	EZTax	5.6		₹208.25/mo	Android, iOS, Web, Windows
19	TaxTim	5.5			Android, iOS, Web
20	Abacus	5.4			Web

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Questions about ONESOURCE Sales & Use Tax Compliance alternatives

What is the best alternative to ONESOURCE Sales & Use Tax Compliance?

Taxation.ai, number 1 in AI tax software with a score of 7.2 out of 10. The others here: OpenTax, OpenTax by Invaro, SelfTax and 16 more.

What is the best free alternative to ONESOURCE Sales & Use Tax Compliance?

Taxation.ai is the best-ranked alternative with a free plan. 14 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.