Liechtenstein cross-border tax preparation

Who this applies to

This skill prepares the 2026 domestic-law and relief workpaper. Determine person/entity, residence and source, the relevant income/asset, domestic tax, treaty allocation and then the actual filing/claim route. Do not start with a presumed zero withholding rate, 183-day exemption or EEA entitlement. The Tax Act and Tax Ordinance are cited in their 1 July 2026 consolidations; the terms of each treaty must be read for the case.

Residence and PE screens

Question	Domestic rule to investigate	Evidence
Individual domicile	Article 2(1)(b): place of stay with intention of permanent remaining	Homes, occupancy, intention/conduct, family/work records; registration alone is insufficient
Habitual abode	Article 2(1)(c): nontemporary stay; a connected stay over six months counts from its beginning, ignoring short interruptions	Complete stay chronology and purpose; the statute has separate school/institution and up-to-twelve-month cure/holiday exceptions
Individual liability dates	Articles 6–7: domicile/habitual-abode resident gate, domestic wealth/income for nonresidents, and actual start/end events	Arrival/departure, assets, source-income dates, and any dual-residence/treaty analysis
Legal-entity residence	Article 44: domestic seat or actual management; article 2 defines management centre	Governing documents, substantive decision-making, people and management records
Domestic PE	Article 2(1)(a): fixed place and listed examples; construction/installation exceeding six months, plus dependent-agent and insurer provisions	Actual activity/site/project duration, authority, premises, staff, contracts and insurance premium facts

These are domestic screens, not a treaty residence tie-breaker or treaty PE conclusion. A treaty can alter the taxing right. Do not turn “over six months” into a generic 183-day domestic test or make a PE solely from a tax/VAT registration. Preserve all potentially applicable states, treaty dates and actual activity facts. SteG, articles 2, 6–7 and 44–46

Rates, bands and thresholds

Item	2026 rule/figure	Official source
Simplified nonresident state rate	4%, only article 23(1)(a) categories and gates	SteG article 23
Mandatory ordinary-assessment threshold	CHF 211,400 or more, with different net/gross/capital-equivalent bases	SteG article 23(2)
Non-property/PE ordinary surcharge	150% of state tax, article 23(5)(b) cases	Finance Act 2026 article 2
Source tax on Austrian cross-border commuters (Grenzgänger)	4% of employment income, under article 15(4) of the Liechtenstein-Austria treaty of 5 November 1969	Finance Act 2026 article 3
Specified individual board/pension source rate	12%, only article 25(3) categories	SteG articles 24–25
Specified nonresident corporate board-function source rate	12%, own category/application rules	SteG article 63a
Foreign-credit de minimis	No credit when total relevant annual foreign taxes do not exceed CHF 50	SteV articles 18a and 36a
Wealth-income credit yield input	4% statutory Sollertrag for 2026, after eligible asset/debt allocation	SteG article 5; SteV article 18b
Ordinary corporate rate used in retained exit case	12.5%, before other interacting rules	SteG article 61
Ordinary tax late-payment interest	4%, subject to actual maturity/period and statutory exceptions	SteV article 45; SteG article 114

The base

Nonresident category and assessment method

Article 6(4)–(5) identifies domestic property/PE wealth and income categories, employment/replacement income, specified board functions, pension/freedom-of-movement benefits and deemed yield. Its employment-source provision also addresses certain treaty-assigned remote/international transport work. Do not assume all work physically abroad is automatically outside Liechtenstein source taxation. Treaty and actual workday facts must be resolved. SteG, article 6

Article 23 separates:

• Certain property/business/deemed-yield categories: simplified assessment at the statutory 4% plus the specified municipality surcharge, subject to the ordinary-assessment routes and linked deductions.
• Specified wages/board/pension categories: source tax can discharge liability, subject to ordinary assessment.
• Ordinary assessment triggers/applications: category-specific CHF 211,400 tests, the exclusive-treaty-taxing-right employment rule and the application route below the stated limit. Do not apply one gross threshold to all categories. Ordinary assessment also has global-rate/expense-allocation rules and different surcharge sources.

For the simplified article 23(1)(a) route, first establish article 6(5)(a), (b) or (g) income and its allowed domestic-linked article 16 adjustments. Compute the state tax at 4%, then the applicable surcharge on that state tax, not on gross income. Under ordinary assessment, use article 19 and article 23(3)'s worldwide-rate and expense-allocation rules; the simplified 4% is not the ordinary progressive rate. SteG articles 16, 19 and 23

Article 23(2)'s mandatory gates differ: domestic agriculture/PE business categories(a)/(b) use CHF 211,400 or more after the stated article 16(2)(a)/(b)(1)–(2) deductions; categories(c)–(f) use CHF 211,400 or more gross, with the statutory pension-rate conversion for the stated capital payments. Employment category(c) is ordinarily assessed regardless of amount where the treaty gives Liechtenstein exclusive taxing rights. The optional route under article 23(2)(c) covers its gross-income amounts up to CHF 211,400, subject to those mandatory routes. Request that ordinary assessment by 31 December of the relevant tax year, under SteV article 19. Do not apply a single threshold or a next-year filing date to every category. SteG article 23(2); SteV article 19

For ordinary assessment, fully deduct expenses economically connected with the specified domestic(a)–(f) income; allocate other article 16 deductions proportionately to domestic/total income. Apply the rate corresponding to worldwide wealth and income after the applicable deductions, then the appropriate surcharge. For property/PE/wealth-yield categories(a)/(b)/(g), article 23(5)(a) uses the actual property/PE municipality's surcharge. For the other article 23(5)(b) cases, Finance Act 2026 article 2 sets 150% of state tax. This is not a nationwide municipality rate. Reconcile certified withholding and other credits afterwards under the assessment's applicable rules. Actual mixed-category allocation, valuation and compulsory rounding require the current return/assessment workpaper. SteG articles 23 and 29; Finance Act 2026 article 2

Individual foreign relief

SteG article 22 distinguishes treaty/reciprocity exemption (with the stated progression cross-reference) from credit relief against the domestic state/municipality tax attributable to the relevant wealth/income. It does not grant an unrestricted deduction of every foreign payment. SteG, article 22

For the nonbusiness individual credit route, SteV articles 18a–18c require the treaty/reciprocity and domestic-tax gates. They exclude expenditure-tax cases and cases where the total foreign taxes do not exceed CHF 50; self-employment uses separate articles 36a–36c. Article 18b requires exhausting source-state tax reduction opportunities and limits credit to domestic tax on the relevant income. For wealth income, build the limit from the affected assets, allocated debt, Sollertrag, allocated deductions and actual domestic average rate. Other income uses its net/allocated-deduction base and actual average rate. Do not use gross foreign cash receipts as the credit ceiling.

Business and corporate foreign-credit workpaper

SteV articles 36a–36c supply the business/corporate credit route; article 18a(4) explicitly refers self-employment income there. Establish treaty/reciprocity eligibility and the applicable domestic-tax gate. Article 36a requires domestic tax on the relevant income and excludes cases where total foreign taxes in the tax year do not exceed CHF 50. Do not turn the nonbusiness wealth-income formula into a business computation, assume relief for exempt foreign income, or use every foreign levy regardless of its legal character. SteV articles 18a(4) and 36a

Exhaust available source-state reductions. Reconcile foreign-taxed income and the expenses economically connected with it, then apply the actual domestic average tax rate calculated excluding exempt income to that net amount. Credit is the lower of the eligible foreign tax and that domestic limit. The average rate is an established case input from the domestic assessment, not automatically the 12.5% headline rate. For an individual self-employment referral, establish the corresponding domestic assessment base/tax before using this route; do not silently substitute a corporate return. SteV articles 36a–36b

The business credit requires an application within three years after the end of the year in which the income fell due, and applies to that income year. Article 18c's nonbusiness route additionally states the earliest application time as after the relevant year ends. The two-year treaty overwithholding refund, the year-end ordinary-assessment election and the 90-day foreign-adjustment reopening are separate routes. No automatic carryforward or refund of excess credit is established here. SteV articles 18c and 36c; SteG articles 26 and 124a

Further checks

Assumed eligible nonbusiness foreign-credit ceiling

Assume a resident individual with all article 18a eligibility gates, no excluded/special category, exhausted source relief, CHF 1,600 qualifying foreign tax and a separately established CHF 1,200 domestic limit under article 18b. Credit is CHF 1,200. The CHF 400 excess is not treated as an automatic carryforward or refund.

Specified nonresident individual board payment

Assume a CHF 10,000 gross payment within article 24(2)(b), no treaty reduction/authority exemption and no other issue. Article 25(3)'s 12% gives CHF 1,200 withheld and CHF 8,800 paid before any separately applicable deductions. An ordinary employment wage does not inherit this rate.

Corporate asset exit workpaper

Assume article 51 applies to one asset with CHF 100,000 established arm's-length value and CHF 60,000 tax carrying value. The assumed taxable uplift is CHF 40,000; at 12.5%, the isolated tax effect is CHF 5,000 before equity/loss/other interactions. Whether/when it is paid or deferred must be decided separately from the valuation arithmetic.

Deadlines and filing

Maintain a separate calendar for the domestic return, source remittance, foreign-credit application, treaty-refund application, foreign finality and annual deferral evidence. The different periods above cannot be substituted for each other. SteG article 94 requires filing notwithstanding absence of a personal form; articles 113–114 govern maturity/payment and special departure events. A deferral must be established under its own rule, rather than inferred from a return extension.

Credit is application-only, no earlier than the end of the relevant income year, with a three-year claim expiry after that year; it is applied to that income year. The worked excess below is an uncredited amount, not an established carryforward/refund right. Corporate relief and business-income credit need separate provisions. SteV, articles 18a–18c

The elective nonresident ordinary-assessment request under SteV article 19 is due 31 December of the tax year. The treaty overwithholding refund under SteG 26(3) is due within two years of source-tax maturity. The foreign-credit requests under 18c/36c have the separate three-year year-end period above. Preserve the application, authority confirmation, due/receipt dates, supporting foreign tax and the exact tax year; a return extension does not extend every claim period. SteV articles 18c, 19 and 36c; SteG article 26

Ordinary tax payment is generally within 30 days after maturity; on departure article 114(2) instead requires payment no later than the departure day. Article 113 controls maturity, including delivery and special cases. Use the actual notice and any lawful payment relief; do not treat the generic 30 days as permission to disregard departure. SteG articles 113–114

Penalties and interest

Article 135's procedural fine concerns its post-reminder intentional/negligent breach; do not estimate a penalty from its maximum. SteG, cited articles

The article 135 procedural ceilings are CHF 1,000, or CHF 10,000 in serious/repeat cases, after the statutory reminder and intentional/negligent breach. Under SteG 114 and SteV 45, ordinary late-payment interest is 4%; establish the proper tax amount, maturity, payment period and any delayed-notice exception. Do not add ordinary late interest to a valid interest-free article 51 exit deferral merely because the asset moved. SteG articles 51, 114 and 135; SteV article 45

Cross-border points

Source withholding and treaty relief

Residents' wages also have withholding. Use payroll for the current ordinary wage schedule, not a final individual-tax rate. SteG article 25 separately provides 12% for its specified board/pension categories. Article 63a provides 12% on the specified nonresident corporate board-function income, with its own ordinary-assessment application. A blanket “no withholding” statement about investment distributions does not resolve a board, pension or employment payment. SteG, articles 24–25 and 63a

For an individual article-24 payment, article 26 provides authority confirmation on application where the treaty gives exclusive taxing rights abroad or caps the domestic rate. Excess treaty withholding has an application/refund route, with its two-year period from the due date of the source-withholding amounts. Collect the authority confirmation and use it within its actual conditions; do not substitute a private residence assertion. Payer liability/certification under article 27 remains separate. The February 2026 wage-tax bulletin and January treaty annex are an administrative screen, not proof that a named employee meets commuter, workday, employer, cost-bearing or public-service conditions.

For a concrete treaty, retain its signed text, protocols, entry into force/application dates, covered person/tax/income articles, residence, permanent establishment/employment conditions and the actual claim evidence. The authority treaty collection is the starting register; take the rate from the treaty that applies, never from a general table.

Corporate exit and corresponding adjustments

SteG article 51 treats exclusion/restriction of domestic taxing rights over asset disposal/use as an arm's-length disposal/use event. The stated foreign-PE transfer/departure/seat-transfer deferral runs interest-free until actual realisation only with secured enforcement and annual proof. Subsequent value reductions have their own cap and no-foreign-duplication evidence. This is not an automatic tax-free move or a universal EU instalment election. Reconcile market/book values, deduction/loss interactions, retained domestic rights and the actual security/evidence before assessing tax or deferral. SteG, article 51

SteG article 63 separately addresses treaty/reciprocity relief and specified corresponding TP adjustments. For final assessments, article 124a's qualifying foreign-adjustment route has a 90-day period after foreign finality and an outer ten-year period after the relevant tax year. Establish the exact qualifying rule and dates; this is not a general reopening right for any foreign notice. Refer treaty disputes/MAP, valuations and contested claims. SteG, articles 63 and 124a

For ordinary corresponding-adjustment application requirements and deadlines, follow the TP skill's application procedure. Article 124a supplies the separate final-assessment reopening rule and does not replace that application procedure. SteG 63 and 124a; SteV 36d

Two worked examples that recompute

All source, tax-residence, relief eligibility, allocation, average-rate and period facts below are explicit assumptions; the arithmetic does not establish those facts. Amounts precede any case-specific compulsory rounding.

Individual wealth-income credit with the actual base sequence

Assume an eligible nonbusiness resident with CHF 200,000 qualifying foreign-taxed assets at the relevant start, CHF 50,000 allocated debt, CHF 1,000 proportionate deductions from the deemed yield, an established 12% actual domestic average rate and CHF 900 qualifying foreign tax after exhausting source relief. Net assets CHF 150,000 produce CHF 6,000 deemed yield at 4%; after deductions the credit base is CHF 5,000. The domestic limit is CHF 600 and the available credit CHF 600; CHF 300 remains uncredited, without an assumed carryforward/refund right. SteV articles 18a–18c

name: Liechtenstein assumed individual wealth income foreign credit base
inputs:
  qualifying_foreign_assets: 200000
  allocated_debt: 50000
  statutory_deemed_yield: 0.04
  allocated_income_deductions: 1000
  established_actual_domestic_average_rate: 0.12
  eligible_foreign_tax_after_source_relief: 900
steps:
  net_relevant_assets: qualifying_foreign_assets - allocated_debt
  relevant_deemed_yield: net_relevant_assets * statutory_deemed_yield
  net_credit_income_base: relevant_deemed_yield - allocated_income_deductions
  domestic_credit_ceiling: net_credit_income_base * established_actual_domestic_average_rate
  allowed_credit: min(eligible_foreign_tax_after_source_relief, domestic_credit_ceiling)
  uncredited_foreign_tax: eligible_foreign_tax_after_source_relief - allowed_credit
expected:
  net_relevant_assets: 150000
  relevant_deemed_yield: 6000
  net_credit_income_base: 5000
  domestic_credit_ceiling: 600
  allowed_credit: 600
  uncredited_foreign_tax: 300

Business credit uses a net base and actual average rate

Assume an eligible ordinary corporate case, CHF 20,000 foreign-taxed revenue, CHF 5,000 directly connected expenses, an established 10% actual domestic average rate computed excluding exempt income, and CHF 2,000 eligible foreign tax after source relief. The credit base is CHF 15,000, the domestic ceiling CHF 1,500 and allowed credit CHF 1,500; CHF 500 is not credited. The 10% is a case assumption, not a statutory Liechtenstein corporate rate. SteV articles 36a–36c

name: Liechtenstein assumed business foreign credit net base
inputs:
  qualifying_foreign_revenue: 20000
  directly_connected_expenses: 5000
  established_actual_domestic_average_rate: 0.10
  eligible_foreign_tax_after_source_relief: 2000
steps:
  net_foreign_credit_base: qualifying_foreign_revenue - directly_connected_expenses
  domestic_credit_ceiling: net_foreign_credit_base * established_actual_domestic_average_rate
  allowed_credit: min(eligible_foreign_tax_after_source_relief, domestic_credit_ceiling)
  uncredited_foreign_tax: eligible_foreign_tax_after_source_relief - allowed_credit
expected:
  net_foreign_credit_base: 15000
  domestic_credit_ceiling: 1500
  allowed_credit: 1500
  uncredited_foreign_tax: 500

Ask the client first

Collect dated homes/stays, treaty residence, all workdays and employment/public-service facts, entity seat/management, project/PE records, source/asset and income categories, tax certificates, foreign reduction efforts and final notices. Obtain a separate legal conclusion for each treaty, remote-work/insurance coordination, unusual source category, business/wealth valuation, PVS/trust, exit deferral and corresponding-adjustment claim.

Sources

Source	URL	Read on
Steuergesetz (SteG), LR 640.0, consolidated 1 July 2026, articles 2, 5-7, 16, 19, 22-29, 44-46, 51, 61, 63-63a, 94, 113-114, 124a, 135	https://www.gesetze.li/konso/pdf/2010340000	2026-10-30
Steuerverordnung (SteV), consolidated 1 July 2026, articles 18a-18c, 19, 36a-36d, 45	https://www.gesetze.li/konso/pdf/2010437000	2026-10-30
Finanzgesetz für das Jahr 2026, article 2 (municipal surcharge for nonresidents)	https://www.gesetze.li/konso/pdf/2025556000	2026-10-30
Steuerverwaltung, bulletin on source tax / wage tax, February 2026, with treaty annex January 2026	https://www.llv.li/servicekonto/steuerverwaltung/quellensteuer-lohnsteuer-unselbstaendige-taetigkeit-und-ersatzeinkuenfte-merkblatt.pdf	2026-10-24
Steuerverwaltung, tax treaties (DBA)	https://www.llv.li/de/landesverwaltung/steuerverwaltung/steuerabkommen-dba	2026-10-24

Not yet confirmed: the terms of individual treaties, including commuter and telework rules; the domestic tax base for an individual's self-employment credit under SteV article 36a; valuation and allocation in mixed nonresident cases; rounding on assessment; security and annual-proof requirements for an exit deferral in a given case.

Contributed by Michael Cutajar.